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MakcuM [25]
3 years ago
6

Please help

Mathematics
1 answer:
Damm [24]3 years ago
5 0

Answer:

It is a

Step-by-step explanation:

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Enter the equation in standard form. y=9/3x-5/3
Marianna [84]
<span>y = 9/3 x - 5/3
3y = 9x - 5
9x - 3y = 5 ...<----this is standard form</span>
3 0
3 years ago
Help me solve this please i can’t figure it out :/
musickatia [10]

Answer:

x = 12.5

Step-by-step explanation:

By Pythagoras'

16² = 10² + x²

x² = 16² - 10²

x = √(16² - 10²)

x = 12.489...

x = 12.5 (nearest tenth)

5 0
3 years ago
Need help pls............
Colt1911 [192]

She does not have enough wire

Step-by-step explanation:

The complete question included a design for her sculpture. It is a circle inscribe in a square and the length of the square is 9 inches. The picture above describe the design.

She has in possession a 5 ft of copper to construct a circle inscribe in a square.

The square is 9 inch length.

Perimeter of the square = 4L

where

L = length

Perimeter of the square = 4 × 9

Perimeter of the square = 36 inches

Circumference of a circle = 2πr

r = diameter/2 = 9/2 = 4.5 inches

Circumference of a circle = 2 × π × 4.5

Circumference of a circle = 2 × 4.5 × 3.14

Circumference of a circle = 9 × 3.14

Circumference of a circle = 28.26 inches.

The sculpture will consume 36 inches for the square and 28.26 inches for the circle. The total length for the sculpture will be 36 + 28.26 = 64.26 inches.

She has 5 ft copper for the sculpture . Let us covert the inches to ft to know if the copper wire is enough.

12 inches = 1 foot

64.26 inches = ?

cross multiply

wire required for the sculpture = 64.26/12

wire required for the sculpture = 5.355 ft

She does not have enough wire.

3 0
3 years ago
Read 2 more answers
A psychological study found that men who were distance runners lived, on average, five years longer than those who were not dist
poizon [28]

Answer:

1. There is  not enough evidence to support the claim that men who were distance runners lived, on average, five years longer than those who were not distance runners.

2. The test statistic is t.

Step-by-step explanation:

<em>The question is incomplete:</em>

  1. <em>Test the claim that men who were distance runners lived, on average, five years longer than those who were not distance runners.</em>
  2. <em>Which of the following is the test statistic for the appropriate test to  determine if men who are distance runners live significantly longer, on  average, than men who are not distance runners?</em>

The test statistic is t, as this is a t-test for the difference of means.

The claim is that men who were distance runners lived, on average, five years longer than those who were not distance runners.

Then, the null and alternative hypothesis are:

H_0: \mu_1-\mu_2=5\\\\H_a:\mu_1-\mu_2> 5

The significance level is 0.05.

The sample 1, of size n1=50 has a mean of 84.2 and a standard deviation of 10.2.

The sample 1, of size n1=30 has a mean of 79.2 and a standard deviation of 6.8.

The difference between sample means is Md=5.

M_d=M_1-M_2=84.2-79.2=5

The estimated standard error of the difference between means is computed using the formula:

s_{M_d}=\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma_2^2}{n_2}}=\sqrt{\dfrac{10.2^2}{50}+\dfrac{6.8^2}{30}}\\\\\\s_{M_d}=\sqrt{2.081+1.541}=\sqrt{3.622}=1.903

Then, we can calculate the t-statistic as:

t=\dfrac{M_d-(\mu_1-\mu_2)}{s_{M_d}}=\dfrac{5-5}{1.903}=\dfrac{0}{1.903}=0

The degrees of freedom for this test are:

df=n_1+n_2-1=50+30-2=78

This test is a right-tailed test, with 78 degrees of freedom and t=0, so the P-value for this test is calculated as (using a t-table):

P-value=P(t>0)=0.5

As the P-value (0.5) is bigger than the significance level (0.05), the effect is not significant.

The null hypothesis failed to be rejected.

There is  not enough evidence to support the claim that men who were distance runners lived, on average, five years longer than those who were not distance runners.

6 0
3 years ago
Read 2 more answers
A 19 in. monitor has a length of 16 in. What is its width?
sleet_krkn [62]
This makes no sense but probably 14.64
6 0
3 years ago
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