please help quickly this is timed

Please Help Quickly This Is Timed

Answers

Answer 1

Answer:

the one you have selected is correct

Step-by-step explanation:


Related Questions

Graph the equation y = 2.

Answers

Y=2 is a point on positive 2 on the y axis and a horizontal line across it

Find 2u, -3v, u + v, and 3u 4v for the given vectors u and v. u = (-2,9), = (6, -2) V 2u = -3v = u + V = 3u - 4y =

Answers

According to the vector rule, the values of the 2u, -3v, u + v, and 3u + 4v are (-4, 18), (-18, 6), (4, 7) and (18, 19) respectively.

Here we have given the following two vector such as

u = (-2, 9)

v = (6, -2)

Then as per the following vector rule, t

=> ku = (ka , kb)

where k refers the constant in vector.

Then the value of 2u is calculated as,

=> 2u = ((-2 x 2), (9 x 2)) = (-4, 18)

And the value of -3v is calculated as ,

=> -3v = ((-3 x 6), (-3 x- 2)) = (-18, 6)

Here we have to use the following rule, that is written as,

=>  (u ± v) = (a ± c, b ± d)

Then the value of u + v is calculated as,

=> (u + v) = ((-2 + 6),  (9 + (-2)) = (4, 7)

Then the value of 3u + 4v is calculated as,

=> 3u = ((3 x -2), (3 x 9)) = (-6, 27)

And the value of

=> 4v = ((4 x 6), (4 x- 2)) = (24, -8)

Then the value of

=> 3u + 4v = (-6, 27) + (24, -8)

=>  3u + 4v = ((-6+24) , (27 + (-8))

Therefore, the resulting value is (18, 19).

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Complete the relationship. __________ mg = __________ µg.
1; 1000
1000; 1
100; 1000
1000; 100

Answers

The completed relationship is:

0.001 grams = 0.0000000551 µg

How to complete the relationship?

To complete the relationship, we need to convert the units of the left-hand side and simplify the right-hand side.

Starting with the left-hand side:

1 mg = 1 milligram = 0.001 grams

Now, we can substitute this into the relationship:

For the right-hand side:

1100 in binary is equal to\(12^3 + 12^2 + 02^1 + 02^0 = 8 + 4 = 12\)

10001000 in binary is equal to \(12^7 + 02^6 + 02^5 + 02^4 + 12^3 + 02^2 + 02^1 + 02^0 = 128 + 8 = 136\)

100 in binary is equal to \(12^2 + 02^1 + 0*2^0 = 4\)

Now, we can substitute these values into the relationship:

0.001 grams = 12 µg / 136 / 4

Simplifying the right-hand side:

12 µg / 136 / 4 = 12 * (1/1000000) * (1/136) * (1/4) = 0.00000005514706...

Rounding this to a reasonable number of significant digits, we get:

0.0000000551

Therefore, the completed relationship is:

0.001 grams = 0.0000000551 µg

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Answer:

c

Step-by-step explanation:

A $30 item is on sale for 60% off. It is charged a 6.25% sales tax. What is the final cost? *
0/1

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Answer:

$12.75

Step-by-step explanation:

Hope this helps!      :3

plz mark as brainliest!

padma works at an electronics store. in addition to her salary, she receives 2 percent of the sales dollars she brings in each month. this extra 2 percent is called a

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Answer:

Step-by-step explanation:

A Commission

The extra 2% of the sales dollars that Padma receives each month is called a commission.

What is the commission?

The commission is a payment made to an employee in addition to their regular salary or wages, based on the number of sales or business they bring in. Another popular definition of commission is the amount of money earned by an employee when they sell something: He receives a 1% commission on each sale in addition to his pay.

As per the question, Padma receives a commission of 2% of the sales dollars she brings in each month. The commission is a common form of compensation in sales and customer service jobs, where employees are often paid a base salary plus a commission based on their sales or performance.

Thus, the required fill-in-the-blank will be "commission".

Hence, the extra 2 percent of the sales dollars that Padma receives each month is called a commission.

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if a fair penny is tossed four times and comes up heads all four times, the probability of heads on the fifth trial is . a. .20 b. 0 c. .03125 d. .50

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The probability of getting all heads when flipping a coin four times is 1/16.

(HHHH), (HHHT), (HHTH), (HHTT), (HTHH), (HTHT), (HTTH), (HTTT), (THHH), (THHT), (THTH), (THTT), (TTHH), (TTHT), (TTTH), (TTTT) are some examples of spaces.

There were 16 total outcomes.

Probability going out of control

HHHH P(A) = P(getting all heads) = 1/16

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test the hypothesis that the mean weight of the two sheets is equal (μ1−μ2)against the alternative that it is not (and assume equal variances). find the t-stat to 3 decimal places.

Answers

To test the hypothesis that the mean weight of two sheets is equal (μ1 - μ2) against the alternative that it is not, and assuming equal variances, we can use a two-sample t-test. The t-statistic can be calculated using the following formula:

t = (x1 - x2) / (s_p * sqrt(1/n1 + 1/n2))

where:

x1 and x2 are the sample means of the two sheets,

s_p is the pooled standard deviation,

n1 and n2 are the sample sizes.

The pooled standard deviation (s_p) can be calculated using the following formula:

s_p = sqrt(((n1 - 1) * s1^2 + (n2 - 1) * s2^2) / (n1 + n2 - 2))

where:

s1 and s2 are the sample standard deviations.

To calculate the t-statistic, we need the sample means, sample standard deviations, and sample sizes.

Once you provide the specific values for these variables, I can assist you in calculating the t-statistic to 3 decimal places.

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To test the hypothesis that the mean weight of the two sheets is equal (μ1 - μ2) against the alternative that it is not, we can use a paired t-test assuming equal variances. The paired t-test is used when we have paired data or measurements on the same subjects or objects.

The t-statistic for a paired t-test is calculated as follows:

t = (X1 - X2) / (s / √n)

where X1 and X2 are the sample means of the two samples, s is the pooled standard deviation, and n is the number of pairs.

Please provide the sample means, standard deviation, and sample size for each sheet so that we can calculate the t-statistic to 3 decimal places.

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will give brainliest: how do i solve this??

will give brainliest: how do i solve this??

Answers

Answer:

Step-by-step explanation:

-y = -5x + 7

y = 5x - 7

perp.: -1/5

y - 2 = -1/5(x + 8)

y - 10/5 = -1/5x - 8/5

y = -1/5x + 2/5

please help me!!Will mark brainlyist

please help me!!Will mark brainlyist

Answers

Answer:

~64 meters

Step-by-step explanation:

depending on how you go at this, you can get a variant of what i have, but it should not go over 70 meters. nor under 60 meters.

A farmer needs to mix 12 ounces of fertilizer for every 10 pounds of soll. How many pounds of fertilizer will the farmer
need to make a mix that contains 120 pounds of soll?

Answers

Answer: 144

Step-by-step explanation: If you have 120 pounds of soil and for every ten pounds of soil you have twelve pounds of fertilizer, then you would divide 120 by ten and you would get 12 and multiply 12 and 12 together to get 144.

suppose that f ( x , y ) = √ 2 2 − x 2 − y 2 at which { ( x , y ) ∣ x 2 y 2 ≤ 2 2 } . The critical point of f(x,y) restricted to the boundary of D, not at a corner point, is at (a,b). Then a=____
and b=___
Absolute minimum of f(x,y) is ___
and absolute maximum is ___

Answers

The value for a = -2 and b = 0, the absolute minimum of f(x, y) is 0, and the absolute maximum is 2.

What is function?

In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain), where each input has exactly one output and the output can be linked to its input.

To find the critical points of the function f(x, y) = √(2² - x² - y²) restricted to the boundary of D, we need to consider the condition x² + y² = 2².

Let's solve for x² + y² = 2² and substitute it into the function f(x, y):

x² + y² = 2²

Simplifying, we have:

x² + y² = 4

Substituting this into f(x, y), we get:

f(x, y) = √(2² - x² - y²) = √(4 - x² - y²)

To find the critical points, we need to find where the partial derivatives of f(x, y) equal zero. Since we are restricted to the boundary of D, we can use Lagrange multipliers to consider the constraint x² + y² = 4.

Let's set up the Lagrange multiplier equation:

∇f(x, y) = λ∇g(x, y)

where g(x, y) = x² + y² - 4 and ∇ denotes the gradient.

Calculating the gradients:

∇f(x, y) = <-x/√(4 - x² - y²), -y/√(4 - x² - y²)>

∇g(x, y) = <2x, 2y>

Setting the components equal, we have:

-x/√(4 - x² - y²) = 2xλ

-y/√(4 - x² - y²) = 2yλ

x² + y² = 4

We can simplify the equations by canceling out the x and y terms (assuming they are not zero):

1/√(4 - x² - y²) = 2λ

x² + y² = 4

From the second equation, we know that x² + y² = 4. Substituting this into the first equation, we get:

1/√(4 - 4) = 2λ

1/√0 = 2λ

0 = 2λ

Since λ cannot equal zero, we can conclude that there are no critical points within the interior of D.

However, we need to check the boundary of D for critical points. The boundary is defined as x² + y² = 4.

Let's find the critical points on the boundary:

Substituting x² + y² = 4 into f(x, y):

f(x, y) = √(4 - x² - y²)

To find the absolute minimum and maximum on the boundary, we need to find the extremum points by analyzing the function along the boundary.

Using techniques such as Lagrange multipliers or parameterization, we can find that the absolute minimum occurs at (x, y) = (-2, 0), and the absolute maximum occurs at (x, y) = (2, 0).

Therefore:

a = -2

b = 0

The absolute minimum of f(x, y) is 0, and the absolute maximum is 2.

Please note that this solution assumes that the question is asking for critical points and extrema on the boundary of D, not at corner points. If the question intends to ask for extrema at corner points as well, further analysis would be needed.

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Calculate the value of the unknowns. O is the centre of each circle.
B
Statement
Reason
(a)
С
O
2
2
Αα
3 T
50°
Р​

Answers

The question need more clear

Please help me. Please don’t give me a answer on the internet

Please help me. Please dont give me a answer on the internet

Answers

Answer

A) f(w) = 80w + 30

B) w represents the number of weeks and f(w) the number of flowers that bloomed

C) 2830 flowers

Step-by-step explanation

A) To find the function f, which represents the number of flowers that bloomed, as a function of w, the number of weeks, we have to evaluate f(s) with s = s(w) = 40w, as follows:

\(\begin{gathered} f(s)=2s+30 \\ \text{ Substituting }s=s(w), \\ f(s(w))=2s(w)+30 \\ \text{ Substituting }s(w)=40w \\ f(s(w))=2\cdot40w+30 \\ f(w)=80w+30 \end{gathered}\)

B) w represents the number of weeks and f(w) the number of flowers that bloomed, like before.

C) Substituting w = 35 weeks into f(w), we get:

\(\begin{gathered} f(w)=80(35)+30 \\ f(w)=2800+30 \\ f(w)=2830\text{ flowers} \end{gathered}\)

How do I solve this?

How do I solve this?

Answers

Answer:

12 m

Step-by-step explanation:

pythagorean theorem: a^2+b^2=c^2

subsitute and simplify to get: x^2+256=400

simplify for x^2=144

12 squared is 144 therefore the answer

Find m∠ABC.




132°


48°


19°


21°

Answers

Answer:

Step-by-step explanation:

48

please help urgent
Use the formula A = P(1 + rt) to find the indicated quantity. P=$7996; r = 6%; t = 10 months; Find A. OA. $8475.76 OB. $8395.80 OC. $399.80 OD. $6663.33

Answers

Answer:

B) \(\$8395.80\)

Step-by-step explanation:

\(A=P(1+rt)\\A=7996(1+0.06\cdot\frac{10}{12})\\A=7996(1+0.05)\\A=7996(1.05)\\A=\$8395.80\)

This is all assuming that r=6% is an annual rate, making t=10/12 years

Driving a tractor, Larry can plow a 1-acre field in 9 h and Sarah can plow a 1-acre field in18 h. If they work together, how long, to the nearest hour, will they take to plow a 1-acrefield

Answers

Answer:

6 hours

Step-by-step explanation:

Given that:

Time taken by Larry = 9 hours

Time taken by Sarah = 18 hours

Rate:

Larry, a = 1/9

Sarah, s = 1/18

Time taken working together = x

Rate working together = 1 /x

Therefore,

Larry's rate + Sarah's rate = working together rate

1/9 + 1/18 = 1/x

(2 + 1) / 18 = 1/x

3 /18 = 1/x

Cross multiply

3x = 18

3x/3 = 18/3

x = 6

Hence, if they work together, it will take 6 hours

x • 2/5 = 4 what is X standing for?

Answers

\( \sf \frac{2x}{5} = 4 \\ \sf \: 2x = 4 \times 5 \\ \sf \: 2x = 20 \\ \sf \therefore \: x = 10\)

Answer: X stands for 10

Step-by-step explanation:

If we subsitute X for 10, and convert 2/5 to 0.4 we get, 10x0.4 = 4

To convert a fraction to a decimal, you simply divide the numerator by the denominator.

An online streaming service deducts $7 from Serena’s account every month of a year. After 1 year, how much do the streaming service fees change Serena’s account?

Answers

Answer:

$84

Step-by-step explanation:

This is a super simple question. All you have to know is how much money will be charged a month, and how many months there are in a year. Just simply multiply 7 by 12 as the streaming service is charging 7 dollars a month and there are 12 months in a year. After you multiply the two numbers, you should end up with 84 dollars charged after 1 year.

I think it's $84. Because there are 12 months in a year and they take $7 per month.

Prove that Q – {0} is closed for division. Please show
ALL work. Will upvote thank
you!

Answers

Q – {0} is closed for division because for any two non-zero rational numbers a and b, their division a/b is also a non-zero rational number.

The numerator p * s and denominator q * r are both integers, and since q, r ≠ 0, the denominator q * r ≠ 0. Let's consider two non-zero rational numbers, a and b, such that a, b ∈ Q – {0}. We need to show that a/b ∈ Q – {0}.Since a, b are non-zero rational numbers, they can be expressed as a = p/q and b = r/s, where p, q, r, s are integers, and q, s ≠ 0.Now, let's consider the division a/b:a/b = (p/q) / (r/s) = (p/q) * (s/r) = (p * s) / (q * r).

For any two non-zero rational numbers a and b, their division a/b is also a non-zero rational number. Thus, Q – {0} is closed for division. Therefore, a/b = (p * s) / (q * r) is a non-zero rational number, which means a/b ∈ Q – {0}.

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Which of the following is a monomial?
A. 20x11 - 3x
B. 11X-9
C. 20x11

Answer: A

Answers

Answer: the answer is c : 20x^11

Step-by-step explanation:

find all abelian groups (up to isomorphism) of order 360

Answers

The abelian groups (up to isomorphism) of order 360 are:

1. C360: The cyclic group of order 360.2. C2 x C2 x C3 x C3 x C5: The direct product of cyclic groups of orders 2, 2, 3, 3, and 5.

How can we determine the abelian groups of order 360?

To find all abelian groups of order 360, we need to consider the prime factorization of 360, which is 2^3 × 3^2 × 5. The abelian groups will be direct products of cyclic groups whose orders divide 360.

First, we consider the cyclic groups. Since the order of an element in a cyclic group divides the order of the group, we can have cyclic subgroups of orders 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, and 360.

Now, we can combine these cyclic subgroups to form the abelian groups. We can take direct products of the cyclic groups to obtain different possibilities. The order of the resulting group will be the product of the orders of the cyclic subgroups.

In this case, we can form the following abelian groups of order 360:

C360: This is the cyclic group of order 360 itself.

C2 x C2 x C3 x C3 x C5: This is the direct product of cyclic groups of orders 2, 2, 3, 3, and 5.

These are the two abelian groups (up to isomorphism) that can be formed using the prime factorization of 360.

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NUMBER SENSE Events A and B are independent. Suppose P(B)=0.4 and P(A and B)=0.13 . Find P(A) .

Answers

Answer:

Step-by-step explanation:

NUMBER SENSE Events A and B are independent. Suppose P(B)=0.4 and P(A and B)=0.13 . Find P(A) .

solve the system of equations algebraically -5x+2y=4 2x+3y=6

Answers

(-5x+2y=4).2
(2x+3y=6).5

-10x+4y=8
10x+15y=30

[10x+(-10x)]+[15y+4y]=[30+8]

19y=38

y=38/19

y=2

2x+3y=6
2x+3(2)=6
2x=6-6=0

x=0

Step-by-step explanation:

-5x+2y= 4         <==== Multiply entire equation by -3 to get:

15x-6y = -12  

2x+3y= 6          <====  Multiply entire equation by 2 to get :

4x+6y = 12    Add the two underlined equations to eliminate 'y'

19x = 0     so x = 0

sub in x = 0 into any of the equations to find:  y = 2

(0,2)

Brandon bought 21 chicken wings for $39. 90. How much would it cost for 15 wings?

Answers

Answer:

$28.50

Step-by-step explanation:

21 chicken wings= $39.90

1 chicken wing= 39.90÷21= $1.90

15 chicken wings= 15×1.90= $28.50

:)

Answer:

$28.50

Step-by-step explanation:

Knowing that :
Brandon brought 21 chicken wings for $39.90

Asking:

How much would it cost for 15 Wings?

Solve:

We first need to know how much is 1 Wings.

To find that Divide Cost by chicken

Thus, 39.90 divide by 21..

=1.90

Hence, 1 Wings ⇒ 1.90

Then Multiply by 15 wings to find the cost of 15 wings.

1.90 * 15 = 28.50

Therefore, 15 Wings Cost $28.50

[RevyBreeze]

Problem ID: PRABESEJ ​

Answers

Answer:

??

Step-by-step explanation:

Help, please?? As soon as possible would be appreciated

Help, please?? As soon as possible would be appreciated

Answers

The definition for the function is b.

What is the definition for the function?In the graph, the left line is a ray.

       So, when x is 2, left ray cannot get the value as 2 .Thus x <2

The intersection of the outer axis is (0,1) .

       So the constant term of the equation is 1

Initially, functions represented the idealized relationship between two changing quantities. A planet's position, for instance, depends on time. In the past, the idea was developed with the infinitesimal calculus at the end of the 17th century, and the functions that were taken into consideration until the 19th century were differentiable that is, they had a high degree of regularity.

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Help!!??
I'm tryna pass 8th grade ykyk

Help!!??I'm tryna pass 8th grade ykyk

Answers

i hate math how about you

The dimensions of a rectangle are 5 inches by 3 inches. The rectangle is dilated by a scale factor such that the area of the new rectangle is 135 square inches. Find the scale factor

Answers

Answer:

9

Step-by-step explanation:

Find the area of the rectangle. 5 x 3 = 15

Because the dilated area is 135, all you have to do it 135 divided by 15 which gives you 9!

3. Simplify the expression:
1+4(2x – 3) - x
A. 9x - 3
B. 9r - 15
C. 7x-2
D. 7x - 11

Answers

Answer:
I think you meant to put an x instead of a r in that equations because 9x-15 is the correct answer so B
Explanation:
Step 1: combine any like terms you can this makes it
5(2x-3)-x
Step 2: distribute 5 to anything in parentheses
10x-15-x
Step 3:
Combine more like terms
9x-15
Step 4: see if there are any more terms you can combine if not it is simplified so the answer here is 9x-15
Other Questions
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