Select the correct answer.
The daytime temperature in Apple Valley is falling by 2.5 degrees each day. What will the net change in the daily temperature be after one calendar week?
Answers
Answer:
2.8
Step-by-step explanation:
Related Questions
18. True or False. If a function has a real sero of 4 with a multiplicity of three and an imaginary
zero of 41, then it has a degree of four.
19. True or False. The imaginary number 27 is a nero of ƒ(x) = x² −x² + 4x − 4.
20. True or False. The quotient of (x²-x² − 16x + 16) + (x − 1) is an irreducible quadratic.
For problems 21-26, use the limits of a polynomial to determine the end behavior.
Find the zeros of the function and indicate multiplicity. Then write the polynomial as a
product of linear factors. Sketch the graph, showing all intercepts.
/(x)=x² + 3x²-4
21. lim f(x) =
22. lim f(x) =
23. Zeros of f(x):
24. y-intercept of f(x):
25. Product of linear and irreducible quadratic factors of fix)
26. Sketch of f(x) using end behavior and intercepts. NO Desmos graphs.
Answers
The polynomial's zeros must be located using a method of your choice, and the linear expressions that produce those zeros must then be combined in order to describe the polynomial as a product of linear factors.
What is a linear factor of a polynomial?The term "triple zero" or "zero with multiplicity 3" is used to describe this. The power p governs the behaviour close to the x-intercept if a polynomial has a factor of the type (xh)p. A zero of multiplicity p is defined as x=h. The x-axis will be touched at zeros with even multiplicities on a polynomial function's graph.
A real number is multiplied by an imaginary unit, I whose feature i2 = 1 defines it as an imaginary number. Bi is an imaginary number, while b2 is its square. For instance, the square of the fictitious integer 5i is 25. Zero is regarded as both real and fictitious by definition.
You must first determine the polynomial's zeros using the method of your choice, and then combine the linear equations that result in those zeros. If you factor, you will arrive at the third degree polynomial, which must then be sorted through.
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Lines that appear to be tangent are tangent. O is the center of each circle.
What is the value of x? Show all work to receive full credit.
Answers
Note that in the prompt above, the value of x is given as: 16°
To answer the issue, we will first name all of the points supplied to us on the isosceles triangle, then identify O, and last discover the value of x. See the attached image.
What is an isosceles triangle?As a result, an isosceles triangle has two equal sides and two equal angles. The term is derived from the Greek words iso (same) and skelos (skull) (leg). An equilateral triangle has all of its sides equal, whereas a scalene triangle has none of its sides equal.
In ΔAOB
OA = OB = R, the radius of the circle O,
therefore, the ΔAOB is an isosceles triangle, with OA, OB as the congruent sides and AB as the base of the triangle.
Thus, ∠OAB = ∠OBA = 53°
Sum of all the angles of a triangle = 180°
∠O + ∠AOB + ∠OBA = 180°
We know ∠AOB = ∠OBA, therefore,
∠O + 2(∠AOB) = 180°
∠O + 2(53°) = 180°
∠O = 180 - 106
∠O = 74°
In ΔOBC,
BC is the tangent to the circle O, therefore,
∠OBC = 90°
Sum of all the angles of a triangle = 180°
∠O + ∠OBC + ∠OCB = 180°
74° + 90° + ∠OCB = 180°
∠OCB = 180° - 74° - 90°
∠OCB = 16°
Hence, the value of x is 16°.
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What is the value of square root 30 is between witch two integers
A-4and5
B-5and6
C-6and7
D-7and8
Answers
Answer:
b
Step-by-step explanation:
because
what is the radius of a circle whose equation is x2y28x6y210 2 units 3 units 4 units 5 units
Answers
The radius of the given circle is 2 units.
Here, we are given an equation of a circle as follows-
\(x^{2}+ y^{2} + 8x - 6y + 21 = 0\)
The general form of the equation of a circles is -
\((x- h)^{2}+ (y-k)^{2} = r^{2}\)
where (h, k) are the coordinates of the center of the circle and r is the radius of the circle.
Let us convert the given equation into the general form by completing the squares as follows -
\(x^{2}+ y^{2} + 8x - 6y + 21 = 0\)
\(x^{2}+ (2*4)x+ y^{2} - (2*3)y + 21 = 0\)
\(x^{2}+ (2*4)x+ 16 -16+ y^{2} - (2*3)y + 9 - 9+ 21 = 0\)
\([x^{2}+ (2*4)x+ 16] -16+ [y^{2} - (2*3)y + 9] - 9+ 21 = 0\)
\((x+4)^{2} -16+ (y - 3)^{2} - 9+ 21 = 0\)
\((x+4)^{2} + (y - 3)^{2} = 16 + 9 - 21\)
\((x+4)^{2} + (y - 3)^{2} = 4\)
\((x+4)^{2} + (y - 3)^{2} = 2^{2}\)
Thus, we have obtained the equation of the circle in the general form. From this, we can observe that the center coordinates will be (-4, 3) and the radius of the circle will be 2 units.
Therefore, the radius of the given circle is 2 units.
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Please please help me!!!!!
Answers
Answer:
x=80
Step-by-step explanation:
This is really simple especially since you have a right triangle, you can easily determine x using trigonometry.
The cosine of an angle in a right triangle is defined by it's adjacent side divided by the hypotenuse.
\( \cos(50) = \frac{51}{x} \)
The angle in question is 50, the hypotenuse is the side facing the 90° angle and the adjacent side is the one next to it.
By cross multiplication i can rewrite this as:
\(x = \frac{51}{ \cos(50) } \)
\(x = \frac{51}{0.64278} \)
\(x = 79.34\)
Round to the nearest ten
\(x = 80\)
If my dot plot is not skewed or symmetrical which measure of variability should I use? (15 data points) PLEASE HELP THE ASSIGNMENT IS DUE TONIGHT!
these are the data points: 5,6,7,7,7,8,8,9,9,9,9,9,10,10,11
I also need the best measure of center!
Answers
If the data is not skewed, then the mean is the best measure of center.
This then also includes the standard deviation because the standard deviation relies on the mean.
To get the mean, add up the data values:
5+6+7+7+7+8+8+9+9+9+9+9+10+10+11 = 124
Then divide by the sample size n = 15
124/n = 124/15 = 8.267 approximately
Once you determine the mean, you can then determine the standard deviation which involves a bit more complicated steps. The rough outline is:
Subtract each data value from the mean. So right off the bat, we can see how important the mean is when it comes to calculating the standard deviation.Square those differences from step one.Add up the squares to get the Sum of the Squared Errors (SSE)Divide the SSE by n-1 to get the sample variance, or divide by n to get the population variance. It will depend on context which version you go for.Apply the square root to the variance to get the standard deviation.Once again, step 1 shows how critical the mean is to finding the standard deviation. The standard deviation measures how far each value is from the mean on average. In other words, it's like a measure of the average distance from the mean.
Use of spreadsheet software is strongly recommended to keep track of everything. You can also use a standard calculator to compute the standard deviation. There are also tons of free online calculators that can help out with that as well.
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If the data was skewed to one side, then the median is the better measure of center because it is not affected by outliers. The IQR (interquartile range) is used instead of the standard deviation for skewed distributions.
A toy rocket is shot vertically into the air from a launching pad 5 feet above the ground with an initial velocity of 32 feet per second. The height h, in feet, of the rocket above the ground at t seconds after launch is given by the function
h(t)=-16t²2 +32t+5.
How long will it take the rocket to reach its maximum height? What is the maximum height?
Answers
It takes the rocket to reach its maximum height h max = 17(ft).
The object's maximum height is the highest vertical position along its trajectory.How to find a maximum height?The object's maximum height is the highest vertical position along its trajectory. Before reaching the highest point, the object is flying upwards and then falls. It means that the vertical velocity is equal to 0 at the highest point of projectile motion (v y = 0 v y = 0 v_y=0).So, h(t) = -16+ 32t+5:
t max = time for maximum heightt max = 32 / 2*(-16)= 32 / 32 = 1h max = the maximum height above the groundh max = h(1) = -16() + 32*1 +5-16+32+5 = -16+ 37 = 21Then, h max rocket = the maximum height of the toy rocket
h max rocket = 21 -5 = 17(ft)t max = 1 secondh max = 17(ft)Therefore, it takes the rocket to reach its maximum height h max = 17(ft)
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find the value of h(-67) for the function below
h(x)=-49x-125
Answers
h(-67) = 3158
General Formulas and Concepts:
Order of Operations: BPEMDAS
- Substitution and Evaluation
Step-by-Step Explanation:
Step 1: Define
h(x) = -49x - 125
h(-67)
Step 2: Solve
1. Substitute: h(-67) = -49(-67) - 125
2. Multiply: h(-67) = 3283 - 125
3. Subtract: h(-67) = 3158
Given: Q lies on PR¯¯¯¯¯¯¯¯
and S lies on RT¯¯¯¯¯¯¯
. Which condition proves △ PRT ∼ △ QRS
?
Answers
Answer:
To prove that △PRT ∼ △QRS, we need to show that the corresponding angles of the two triangles are equal and that the corresponding sides are proportional.
We can use the given information that Q lies on line PR and S lies on line RT to show that the triangles are similar.
The condition that proves △PRT ∼ △QRS is:
Angle-angle-angle (AAA) similarity condition: If two angles of one triangle are congruent to two angles of another triangle, then the third pair of angles must also be congruent, and the triangles are similar.
In this case, we can see that:
∠PRT and ∠QRS are corresponding angles (both are opposite to segment RS)
∠PTR and ∠QSR are corresponding angles (both are opposite to segment QS)
Therefore, we have two pairs of corresponding congruent angles, and by the AAA similarity condition, we can conclude that △PRT ∼ △QRS.
Step-by-step explanation:
Naty bought a dress for $24.95 and a skirt for $14.95. The sales clerk said the total cost including 9.5% sales tax was $49.40. Below are the steps the sales clerk completed.
Step 1: 24.95 + 14.95 = 39.90
Step 2: 39.90 + 9.5 = 49.40
Are the clerk's steps correct? If she is incorrect, identify her mistake and explain her error. Explain in writing how to accurately calculate the sales tax, the total cost, and state the correct total. (Round the final answer to the nearest hundredth)
Answers
She is incorrect. The mistake she made was adding $9.5 instead of taking 9.5% from the $39.90 and adding it to the initial total. The correct answer is actually $43.69. To find sales tax add your two starting prices and simply find the percent your looking for and add it to the original total
Answer:
see below
Step-by-step explanation:
Clerk is wrong at step two. It should be...
To calculate the sales tax take 9.5% and divide by 100 which is 0.095. The tax is 0.095(39.90) = 3.79
Cost of items + Tax = Total cost
Cost of items + .095(cost of items) = Total cost
39.90 + 3.79 = 43.69
Use the distributive property.
Simplify the expression below.
5(x - 2) =_-_
Answers
~\(\frak{LoveYourselfFirst:)}\)
Hey there!
Do you remember what the Distributive property states? If not, no worries! Here's what this property states:
a(b+c)=ab+ac
In this formula, a, b, and c can be
Constants. These are numbers like 1, 2, 3, or -1, -2, -3... or even fractions, decimals... (all real numbers)Variables. These are letters like d, a, s, e, t, k, a...Variables can have a number next to them; it's called a coefficient.Now that we know what this property states, let's simplify this expression.
5(x-2)
First, multiply 5 times x:
5x (5 is the coefficient of x, by the way)
Then, multiply 5 times -2 (please pay attention to the sign) :)
-10
Put both terms together.
Hence, the simplified expression is
\(\boxed{\boxed{\bold{5x-10}}}\)
Is it possible to simplify the expression any further? No.
Why? Because 5x and -10 aren't like terms, so we cannot combine them.
Hope everything is clear.
Let me know if you have any questions!
#ILoveLearning
:-)
what does y=-(7)/(2)x+5 look like on a graph.
Answers
Answer:
Here you go buddy.
How can I solve this? Thank you in advance!!
One number is randomly selected from {1, 2, 3, 4, 5, 6, 7, 8, 9}. Find the probability that the selected number is an odd number or a multiple of 3.
Answers
Answer:
The probability that the selected number is an odd number or a multiple of 3 is 6/9, or 2/3. This is because there are 6 numbers that meet the criteria out of the 9 numbers in the set: 1, 3, 5, 7, 9, and 3.
find the value of n, if (n+1)! = 6*(n-1)!
Answers
Answer:
2
Step-by-step explanation:
(n+1)!=1×2×...×(n-1)×n×(n+1)
6*(n-1)!=1×2×...×(n-1)
--> n×(n+1)=6
-->n=2
How do I solve 5(24,500)+4b+3(10,100)=$210,400
Answers
Answer:
use a calculator
Step-by-step explanation:
Compare -2.3 and -8/3 using symbols <, >, or =.
Answers
₋2.3 < ₋8/3 is the correct answer.
Given, we need to compare the terms.
₋8/3 = ₋2.67
therefore, 2.3 is less than 2.667
hence we form it as ₋2.3 < ₋2.67
we form: ₋2.3 < ₋8/3
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I need help right now!!!
Answers
1. Figure STUV is congruent to Figure KLMN because rigid motions can be used to map Figure STUV onto Figure KLMN.
2. Figure STUV is also similar to Figure KLMN because rigid motions and/or dilations can be used to map Figure STUV onto Figure KLMN. The scale factor is 2.
What does it mean for figures to be congruent?When it is said that two figures are congruent, like the ones shown on the graph, This means that they have the same shape and size.
Similar figures have the same shape, but they may have different sizes and be located in different positions.
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x/5+7=3
tellme fastplease
Answers
Answer:
-20
Step-by-step explanation:
x/5=3-7
x/5=-4
x=-4×5
x=-20
jason is making a concrete driveway
Answers
Answer: graph of the relationship includes the point (63, 140).
Step-by-step explanation:
Melissa wants to check the accuracy of the finance charge on her promissory note. She has a $6,000, 4-year loan at an APR of 3.11%. Round to the nearest cent.
a. What is her monthly payment?
b. What is the total of all her monthly payments?
c. What is the finance charge?
Answers
The solution is,
a) Melissa's monthly payment on the promissory note is $133.10.
b) The total of Melissa's monthly payments is $6,388.80.
c) The total finance charge is $388.80.
How are the monthly payments and finance charges determined?Using an online finance calculator, we can compute the promissory note's monthly payments and finance charges (cost of credit).
The sum of the monthly payments is the total payments made by Melissa, consisting of the amount of the promissory note and the finance charges.
here, we have,
N (# of periods) = 48 months (4 years x 12)
I/Y (Interest per year) = 3.11%
PV (Present Value) = $6,000
FV (Future Value) = $0
Results:
PMT = $133.10
Sum of all periodic payments = $6,388.80
Total Interest = $388.80
Thus, Melissa's finance charge on the promissory note is $388.80, with a monthly payment of $133.10 for 4 years.
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Solve for the value of s
Answers
Answer:
s= 15
Step-by-step explanation:
The entire angle equals 180 degrees.
We already know the value of part of the angle, 37 degrees.
So, subtract 37 from 180. You get 143.
Create an equation: 143=9s+8
Subtract 8 from 143. You get 135.
135=9s
135/9=15
So, s=15
Can someone help me solve this problem. Find the area of the trapezoid HOWL plotted below. Round your answer to the nearest hundredth.
Answers
Take into account that the area of the given trapezoid is the sum of the area of two right triangles and one square. The area of the triangles is the same, then, we have:
A = 2A1 + A2
where A1 is the area of the triangle and A2 the area of the square.
Let's calculate the area of triangle OSH, as follow:
A1 = (OS)(SH)/2
OS and SH are segments which we can calculate by using the following formula for the distance between two points with coorindates (x1,y1) and (x2,y2):
\(d=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2}\)Based on the given coordinates points for O, S and H, we have:
\(\begin{gathered} OS=\sqrt[]{(-7-(-5))^2+(-1-(-2))^2}=\sqrt[]{4+1}=\sqrt[]{5} \\ SH=\sqrt[]{(-6-(-5))^2+(-2-(-4))^2}=\sqrt[]{1+4}=\sqrt[]{5} \end{gathered}\)Then, the area of triangle OSH is:
\(A_1=\frac{\sqrt[]{5}\sqrt[]{5}}{2}=\frac{5}{2}=2.5\)Next, let's calculate the area of the square. As you can notice on the given image, the length of the sides of the square is the same that the length of the segment OS, then, we have for the area of the square:
\(A_2=(\sqrt[]{5})^2=5\)Finally, let's replace the obtained values of A1 and A2 into the expression for the total area A:
A = 2(2.5) + 5 = 5 + 5
A = 10 squared units
find the number of degrees moved by the minute hand of a clock in the give amount of time 2/3 hour ??
Answers
The number of degrees moved by the minute hand of a clock in 2/3hours is 240°
What is angle at a point?Angles around a point describes the sum of angles that can be arranged together so that they form a full turn. Angles around a point add to 360 °.
The hand of minute will move 360° to complete an hour.
If a full round will make angle at a point. Which is 360°
Therefore 2/3 of an hour will give an angle of 2/3 of 360°
= 2/3 × 360
= 240°
therefore the number of degrees moved by the minute hand in 2/3 hour is 240°
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Cuantas Escuelas de administración hay ?
Answers
Please helpppp meeee
Answers
look at picture for question WILL MARK BRAINILEST PLEASE
Answers
Answer:
C
Step-by-step explanation:
The mean is 6
The median is 6
The mode(s) are 5 and 7
please help me on math ILL GOVE BRAINLIST !! there’s
minimum
maximum
Q1
Q2
Q3
and the numbers are
158
155
162
153
156
Answers
The 5 number summary of the data values:
Min: 158155162153156
1st quartile: 79077581076578
Median: 158155162153156
3rd quartile: 79077581076578
Max: 158155162153156
Interquartile range: 0
An orange juice manufacturer advertises a new orange juice product that contains 50% less sugar. This new product is expected to increase profits substantially because they create the 50% less sugar product by replacing 50% of the juice with water while selling it for the same price. An inspector wants to investigate whether the actual percentage of water in the product is within 5% of the intended 50%.
He selects a random sample of 500 containers of orange juice and determined the percentage of each that is water. He plans to conduct a significance test at the a = 0.01 level to see if there is convincing evidence that the proportion of water added is different from 0.50. What is the probability that the inspector makes a Type I error?
Answers
Answer:
0.01
Step-by-step explanation:
The probability of making a Type I error is equal to \alphaα = 0.01, the significance level of the test
The probability of type 1 error will then be equal to the hypothesis level of significance and this will be 0.01.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
An orange juice manufacturer advertises a new orange juice product that contains 50% less sugar.
An inspector wants to investigate whether the actual percentage of water in the product is within 5% of the intended 50%.
He plans to conduct a significance test at a = 0.01 level to see if there is convincing evidence that the proportion of water added is different from 0.50.
Type I error is referred to as false positives and it means that when a statistically significant difference is validated by the researcher even though the results aren't statistically significant.
Type I error is when one rejects the null hypothesis even though it's true. In this case, the inspector rejects the hypothesis that the proportion of water that is contained in the product is 0.5.
The probability of type 1 error will then be equal to the hypothesis level of significance and this will be 0.01.
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4x+2y=8
5x+3y=9
I need the order pairs for both of these
Answers
X= 3
Y=-2
Answer:
(3,-2)
Step-by-step explanation:
How many solutions does the nonlinear system of equations graphed below
have?
Answers
Answer:
One. The point at which the parabola and the line intersect.