a + b=c make (a) the subject with working
Step-by-step explanation:
a= c-b pls let me know if it is correct or not
the bottom angle is also 45 could some one answer this for me
The length of the side opposite to the reference angle is 7.77 units.
What are trigonometric ratios in terms of a right-angle triangle?We know a right-angled triangle has three sides they are -: Hypotenuse,
Opposite and Adjacent.
We can remember SOH CAH TOA which is,
sin = opposite/hypotenuse, cos = adjecen/hypotenuse and
tan = opposite/adjacent.
If we take the reference angle 45°, The side 'x' is opposite and the side having a length of 11 units is the hypotenuse.
We know, sin = opposite/hypotenuse.
Therefore,
sin45° = x/11.
1/√2 = x/11.
x = 11/√2.
x = 7.77 units.
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What is the answer for this question?
Answer:
I don't know sorry.....
What is the value of the expression 3 over 4 to the power of 3
Answer:
\(( \frac{3}{4} ) ^{3} \\ \frac{3 {}^{3} }{4 {}^{3} } \\ \frac{3 \times 3 \times 3}{4 \times 4 \times 4 } \\ \frac{27}{64} \)
Option 2 is the correct answer.
Answer:
2nd Option\( \frac{27}{64} \)
Step-by-step explanation:
Here,
\( { (\frac{3}{4} )}^{3} \)
\( = \frac{3 \times 3 \times 3}{4 \times 4 \times 4} \)
\( = \frac{27}{64} \)
Hence,
2nd option is the correct answer.
Select all equations that are equivalent to -8x - 6 15. 2 - (Select all that apply.) 4x+3= 15 -4x-3=15 8x+6=30 (-4x - 3) = 15 — − ½ ( 8x + 6) = 15 -
(c) Problem 17:
How far will the baseball have dropped after
4.5 seconds?
(first taught in
lesson 90)
Afton
After 4.5 seconds, the baseball will have dropped approximately 99.35 meters.
To find out how far the baseball will have dropped after 4.5 seconds, we need to use the free fall formula.
The terms involved in this calculation are:
Time (t): 4.5 seconds.
Acceleration due to gravity (g): 9.81 m/s² (approximated)
Distance dropped (d)
The free fall formula is:
\(d = (1/2) \times g \times t^{2}\)
Now, we will plug in the given values and solve for d:
Substitute the values
\(d = (1/2) \times 9.81 \times (4.5)^{2}\)
Calculate the square of time
\(d = (1/2) \times 9.81 \times 20.25\)
Multiply the values
d = 99.3525.
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Use the function g(x)=11 to find the following values g(-3), g(5), g(a), g(a+h)
The evaluated function values are g(-3) = 11, g(5) = 11, g(a) = 11 and g(a+h) = 11
Evaluating the function valuesA composite function is a function that results from combining two or more functions. It is created by using the output of one function as the input of another function.
The function g(x) is defined as g(x) = 11, which means that the output of the function is always 11, no matter what value of x is inputted.
i.e. the function g(x) = 11 always returns the value 11, regardless of the input.
Therefore, we have:
g(-3) = 11
g(5) = 11
g(a) = 11
g(a+h) = 11
So, regardless of the value of a or h, the function g(x) will always return 11.
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Help
Select all of the expressions that have the same value as 892 ÷ 8
8,920 ÷ 80
894 ÷ 10
89.2 ÷ 0.08
8.92 ÷ 0.8
.892 ÷ 0.008
Answer:
8,920 ÷ 80=111.5
892 ÷ 8=111.5
89.2 ÷ 0.08=111.5
.892 ÷ 0.008=111.5
Step-by-step explanation:
Half the difference between two numbers is 8. The average of the numbers is 12. Find the
numbers.
how many solutions are there to the system of equations graphed below of the lines are parallel
Answer:
A. Zero
Step-by-step explanation:
In this example, the two lines are parallel. Henceforth, they will never intersect each other. For the system of equations to have any solutions, they would need to intersect.
Find the slope of the line that passes through (5, 3) and (8, 2).
The slope of the line passing through the points (5, 3) and (8, 2) is -1/3.
To find the slope of the line passing through the points (5, 3) and (8, 2), we can use the formula for slope:
slope = (y2 - y1) / (x2 - x1)
Let's substitute the coordinates of the given points into the formula:
x1 = 5, y1 = 3
x2 = 8, y2 = 2
slope = (2 - 3) / (8 - 5)
Calculating the numerator and denominator:
slope = -1 / 3
Therefore, the slope of the line passing through the points (5, 3) and (8, 2) is -1/3.
Note: The slope represents the rate of change between the y-coordinates and x-coordinates of two points on a line. In this case, for every 3 units increase in the x-coordinate, the y-coordinate decreases by 1 unit.
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tickets to a movie cost $10.50 for adults and $7.25 for students. you and a few friends purchased 8 tickets for $61.25. how many adult tickets and student tickets were purchased?
Answer:
1 adult ticket and 7 student tickets were purchased
Step-by-step explanation:
let a represent number of adult tickets purchased and s the number of student tickets purchased, then
a + s = 8 ( subtract s from both sides )
a = 8 - s → (1) ← based on total tickets purchased
10.5a + 7.25s = 61.25 → (2) ← based on cost of tickets
substitute a = 8 - s into (2)
10.5(8 - s) + 7.25s = 61.25
84 - 10.5s + 7.25s = 61.25
84 - 3.25s = 61.25 ( subtract 84 from both sides )
- 3.25s = - 22.75 ( divide both sides by - 3.25 )
s = 7
substitute s = 7 into (1)
a = 8 - 7 = 1
that is 1 adult ticket and 7 student tickets were purchased
James measured a TV that is approximately 13 inches tall by 20 inches wide. Since the size of TVs are named by the measure of the diagonal, the BEST diagonal measure for this TV is...A. 32inchB.27inchC.24Inch
In order to calculate the diagonal of the TV, we can use the Pythagorean theorem, where the diagonal is the hypotenuse and the dimensions of the TV are the legs:
\(d^2=13^2+20^2\)Solving for d, we have:
\(\begin{gathered} d^2=169+400\\ \\ d^2=569\\ \\ d=23.85\text{ in} \end{gathered}\)Rounding to the nearest whole number, we have a diagonal of 24 inches, therefore the correct option is C.
NEED HELP ON THIS ASAP!!
Answer:
Solution given:
<Q+<P=180°[su m of co interior angle is supplementary]
<Q+95=180
<Q=180-95
<Q=85
m<Q=85° degree
2. Perform the following multiplication: (+5)(-2)(+7)(-4)(-1)
Answer:5
Step-by-step explanation:
giải phương trình Bermolli : y' +\(\frac{y}{x}\) =x\(y^{2}\)
Answer:
y(x) = -1/(x^2 + c_1 x)
Step-by-step explanation:
Solve Bernoulli's equation ( dy(x))/( dx) + y(x)/x = x y(x)^2:
Divide both sides by -y(x)^2:
-(( dy(x))/( dx))/y(x)^2 - 1/(x y(x)) = -x
Let v(x) = 1/y(x), which gives ( dv(x))/( dx) = -(( dy(x))/( dx))/y(x)^2:
( dv(x))/( dx) - v(x)/x = -x
Let μ(x) = e^( integral-1/x dx) = 1/x.
Multiply both sides by μ(x):
(( dv(x))/( dx))/x - v(x)/x^2 = -1
Substitute -1/x^2 = d/( dx)(1/x):
(( dv(x))/( dx))/x + d/( dx)(1/x) v(x) = -1
Apply the reverse product rule f ( dg)/( dx) + g ( df)/( dx) = d/( dx)(f g) to the left-hand side:
d/( dx)(v(x)/x) = -1
Integrate both sides with respect to x:
integral d/( dx)(v(x)/x) dx = integral-1 dx
Evaluate the integrals:
v(x)/x = -x + c_1, where c_1 is an arbitrary constant.
Divide both sides by μ(x) = 1/x:
v(x) = x (-x + c_1)
Solve for y(x):
y(x) = 1/v(x) = -1/(x^2 - c_1 x)
Simplify the arbitrary constants:
Answer: y(x) = -1/(x^2 + c_1 x)
A car is traveling at a rate of 108 kilometers per hour. What is the cars rate in meters per second? How many meters will the car travel in 20 seconds?
Answer:
\(\frac{30meters}{second}\)
600meters
Step-by-step explanation:
Use conversion factors that represent 1. You can cross cancel wods just like numbers.
\(\frac{108km}{1hour}\) · \(\frac{1hour}{60 minutes}\) · \(\frac{1minute}{60seconds}\) ·\(\frac{1000meters}{1 km}\)
\(\frac{108000meters}{3600seconds}\)
\(\frac{30meters}{second}\)
\(\frac{30meters}{second}\) ·\(\frac{20seconds}{1}\)
600 meters
Helping in the name of Jesus.
Merrisa is booking a holiday costing £660.
She needs to pay a deposit of of the total cost of the booking
How much does she pay?
The amount of money she will have to pay for booking of the holidays would be = £220
How to calculate the amount ofr deposit?The total amount of money that will cost Merrisa for booking of holidays = £660
The fraction of the total cost that she needs to deposit = 1/3
Therefore, the actual amount that she needs to deposit = 1/3 of £660
= 1/3× 660
= £220
Therefore, in conclusion, Merrisa would have to pay a total of £220 for booking of the holidays. This total amount is ⅓ of total cost of booking.
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WILL MARK BRAINLIEST!!! PLEASE ANSWER!!! WRONG ANSWERS JUST FOR POINTS WILL BE REPORTED!!!!!!!!!!!!!!
Answer: 2.5
Step-by-step explanation: r= sqrt(V/pi*h)
sqrt(171/(8.7)(3.14)
Step-by-step explanation:
solution given.:
radius=[r] let
height[h]=8.7in
volume[V] of cylinder=171in³
π=3.14
we have
volume[V] of cylinder=πr²h
171=πr×8.7
r²=\( \frac{171}{3.14×8.7}\)
r=\( \sqrt{6.26} \)
r=2.5in
so radius is 2.5in
a teacher figures that final grades in the statistics department are distributed as: a, 25%; b, 25%; c, 40%; d, 5%; f, 5%. at the end of a randomly selected semester, the following number of grades were recorded. find only the test statistics to test the claim that the grade distribution for the department is different than expected. be sure to set up the equation. do not conduct the hypothesis testing. grade a b c d f number 42 36 60 8 14
5.25 option c is the test statistics for the given data.
Given,
The observed values;-
A: 36
B: 42
C: 60
D: 14
E: 8
Total =160
To verify the following claim, a chi square test must be performed:
H0: The proportions for the final grades are the same.
H1: The final grade proportions varies from one another.
The level of significance assumed for this case is α = 0.01
The statistic to check the hypothesis is given by:
X² = ∑ⁿi = 1 (Oi - Ei)²/Ei
Now all that remains is to use the following formula to determine the predicted values, Ei = % × total
And the calculations are given by:
EA = 0.25 × 160 = 40
EB = 0.25 × 160 = 40
EC = 0.4 × 160 = 64
ED = 0.05 × 160 = 8
EF = 0.05 × 160 = 8
Here, the statistics;-
X² = (36 - 40)²/40 + (42 - 40)²/40 + (60 - 64)²/64 + (14 - 8)²/8 + (8 -8)²/8
= 16/40 + 4/40 + 16/64 + 36/8 + 0/8
= 5.25
Therefore,
The test statistics for the given data is option c 5.25
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A recipe requires one quarter cup of milk as a base and then, in addition, 1 cup of milk for every 4 cups of flour. Choose a linear equation that describes the relationship.
y=4x + 4
y=4x+1/4
y=1/4x+4
y=1/4x + 1/4
What is the volume of the cone below?
O A. 5082 units 3
O B. 3388 units
O C. 924 units 3
D. 10,164units 3
Answer: 3388
Step-by-step explanation:
Properties of a rhombus
Answer:
Properties: Isotoxal figure, Convex polygon
Step-by-step explanation:
In plane Euclidean geometry, a rhombus is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length.
what is the slope of the line that passes thru (7,-6) and (6,-6)
The slope of the straight line passing through the two given points is undefined which means the line is parallel to the y-axis.
Let us consider the two points A(x₁,y₁) and B(x₂,y₂) be the two points (7,-6) and (6,-6) on the cartesian coordinates.
Let the slope of the line joining A (7,-6) and B(6,-6) be m.
We know that the slope of a line is given by:
\(m=\frac{y_2-y_1}{x_2-x_1}\)
Slope of the line
= (6-7) / (-6+6)
= -1 / 0
= undefined
Since the slope is undefined we can say that the straight line is parallel to the y axis.
we know that tan 90° = ∞
So any line parallel to this line will have the same slope as the y axis.
Hence the slope of the given line is undefined or infinity.
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S is the sum of 12, 8, 6, 4 and x. What is the value of x if x = 2/5S?
(Linear equations)
Answer:
x = 20
Step-by-step explanation:
Sum of 12, 8, 6, 4 and x is:
S = 12 + 8 + 6 + 4 + x = 30 + x
\(\dfrac{2}{5}S = \dfrac{2}{5}\cdot 30 + \dfrac{2}{5}x\\\\=12 + \dfrac{2}{5}x\\\\\\\textrm{But left side is nothing but x}\\\\\textrm{So we get }x = 12 + \dfrac{2}{5}x\\\\\rm{Subtract $\dfrac{2}{5}x$ from both sides}\\\\x - \dfrac{2}{5}x = 12\\\\\dfrac{3}{5}x = 12\\\\x = \dfrac{12 \cdot 5}{3} \\\\x = 20\\\\\)
Verify
12 + 8 + 6 + 4 + 20 = 50
(2/5) x 50 = 20
Need help with this geometric question ASAP, Thank you
Answer:
a. x = 9
b. GH = 30; GK = 20
Step-by-step explanation:
An angle bisector in a triangle divides the sides proportionally.
a.In this triangle, that means ...
(3x +3)/18 = (3x -7)/12
2(3x +3) = 3(3x -7) . . . . . . . multiply by 36
6x +6 = 9x -21 . . . . . . . . . eliminate parentheses
27 = 3x . . . . . . . . . . . . . . add 21 -6x
x = 9 . . . . . . . . . . . . . . . divide by 3
__
b.The segment lengths are found by substituting the value of 3x in each of the given expressions:
GH = 3x +3 = 27 +3 = 30
GK = 3x -7 = 27 -7 = 20
What graph would best display the data shown in the frequency table?
A. line plot
B. vertex-edge graph
C. histogram
D. stem-and-leaf graph
Answer:
histogram
Step-by-step explanation:
The expected probability of rolling an even number in 1 roll of a fair cube with faces numbered 1 through 6 is 1/2. When the cube was rolled 20 times, an even number came up 15 times, or 3/4 of the time. When the same cube was rolled 100 times, an even number came up 51 times, or almost 1/2 the time.
Why are the actual results closer to the expected probability of 1/2 when rolling the cube 100 times?
a. A larger sample size was used.
b. The 100 tosses were controlled better.
c. The expected probability changed when the cube was rolled 100 times.
d. The thrower considered only the even rolls, and disregarded the odd rolls.
Answer:
Step-by-step explanation:
The correct answer is a. A larger sample size was used.As per the Law of Large Numbers, the more times an experiment is repeated, the closer the actual results will be to the expected probability. In this case, rolling the cube 100 times provides a larger sample size than rolling it only 20 times. The more rolls that are made, the greater the likelihood that the actual results will converge towards the expected probability of 1/2 for rolling an even number.Option b, The 100 tosses were controlled better, is not relevant to this scenario since the fairness of the cube is assumed.Option c, The expected probability changed when the cube was rolled 100 times, is not true. The expected probability of rolling an even number on a fair six-sided die is always 1/2, regardless of the number of times it is rolled.Option d, The thrower considered only the even rolls, and disregarded the odd rolls, is not a valid assumption. The question states that the number of even rolls was recorded, but it does not imply that odd rolls were disregarded.
which grows at the fastest rate for increasing values of x
\(f(x)=4*2^x\\h(x)=9x^2+25\\\\g(x)=15x+6\)
The function that grows at the fastest rate for increasing values of x is f(x) = 4×2ˣ.
We can see this by comparing the growth rates of the three functions for larger and larger values of x.
As x gets larger, the exponential function f(x) grows much faster than the other two functions, which are both polynomial functions.
if we plug in x = 10, we get:
f(10) = 4×2¹⁰ = 4×1024 = 4096
h(10) = 9×10² + 25 = 925
g(10) = 15×10 + 6 = 156
As we can see, f(10) is much larger than h(10) and g(10), indicating that f(x) grows at a much faster rate than the other two functions.
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Find the perimeter:
Answer:
29.70796327 m
Step-by-step explanation:
You need to add all the sides together which would be 6 + 8 + the circumference of the semi circle.
C = 2(pi)r (in this case it is a semi circle so you can remove the 2 and the radius is 5 (half of 10))
C = (pi) x 5
C = 15.70796327
P = + 6 + 8 = 29.70796327