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natali 33 [55]
3 years ago
13

Calculate the area..........................

Mathematics
2 answers:
ivolga24 [154]3 years ago
6 0
It will be 2700 or 640
Nadya [2.5K]3 years ago
5 0

Answer:

I might be wrong, but I'll help anyway.

Step-by-step explanation:

The is either 2700 or 640.

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Write a linear equation. Choose three input values and find the corresponding output values. Show your work.
erma4kov [3.2K]

Example of linear equation:

y = mx + b

Let's have the linear equation;

y = 2x + 3

<h3 /><h3>Put x=1</h3>

y = 2 \times 1 + 3  \\ y = 2 + 3 \\ y = 5

(x,y) = (1,5)

<h3>Put x=2</h3>

y = 2 \times 2 + 3 \\ y = 4 + 3 \\ y = 7

(x,y) = (2,7)

<h3>Put x=3</h3>

y = 2 \times 3 + 3 \\ y = 6 + 3 \\ y = 9

(x,y) = (3,9)

7 0
2 years ago
3(2v-1)=6v-4 can someone pls help me with this
ZanzabumX [31]

Answer:

Step-by-step explanation:

dy/dx= -(2x+3y+1)/(3x-2y+1)

Let x= X+p. and y = Y+q. then dy/dx = dy/dX.

dy/dX= -(2X+2p+3Y+3q+1)/(3X+3p-2Y-2q+1) =

dy/dX = -{2X+3Y+(2p+3q+1)}/{3X-2Y+(3p-2q+1)}

Now 2p+3q+1=0……………..(1)

3p-2q +1=0…………………………(2)

p/(3+2)=q/(3–2)=1/(-4–9)

8 0
3 years ago
The population is decreasing at a rate of 5% per year. If the population is 30,000 today, what will the population be in 12 year
Lera25 [3.4K]

Answer:12,000

Step-by-step explanation:

.05*30,000=1,500

1,500*12=18,000

30,000-18,000=12,000

5 0
3 years ago
Read 2 more answers
Suppose you are asked to take a sample of men and women in order to measure their emotional IQ. The emotional IQ scale that you
yan [13]

Answer:

The 99% confidence interval for the scores of men is (64.406,75.594).

The 99% confidence interval for the scores of women is (73.609,90.391).

Step-by-step explanation:

We have the standard deviations for the sample, which means that the t-distribution will be used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 25 - 1 = 24

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.797.

For men:

Standard deviation of 10.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.797\frac{10}{\sqrt{25}} = 5.594

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 70 - 5.594 = 64.406

The upper end of the interval is the sample mean added to M. So it is 70 + 5.594 = 75.594

The 99% confidence interval for the scores of men is (64.406,75.594).

For women:

Standard deviation of 15.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.797\frac{15}{\sqrt{25}} = 8.391

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 82 - 8.391 = 73.609

The upper end of the interval is the sample mean added to M. So it is 82 + 8.391 = 90.391

The 99% confidence interval for the scores of women is (73.609,90.391).

4 0
2 years ago
In a natural population of bugs living on balloon vine in Baton Rouge, Louisiana, female beak length ranged from 6.5 to 9.5 mm w
sp2606 [1]

Answer:

This distribution mostly fit my expectation but the beak length of 6.5mm size may not able to reach the seed

4 0
3 years ago
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