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3 years ago

Will give brainliest to the first person

Mathematics

2 answers:

Deffense [45]3 years ago

8 0

The area should be 3x^2+15x

cricket20 [7]3 years ago

8 0

Answer:

The answer is 3x²+15x

step-by-step explanation

$\sf{}$

=> area = l×b

=> area = (x+5)(3x)

=> area = 3x²+15x

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the fuel for a chain saw is a mix of oil and gasoline. The label says to mix 6 ounces of oil with 16 gallons of gasoline. How mu

Reika [66]

You would have to use 12 ounces of gasoline.

8 0

3 years ago

Read 2 more answers

Y=-2/3x-3<br> plot it on a graph

erica [24]

Answer:

see graph

Step-by-step explanation:

x intercept -4.5

y intercept -3

slope -2/3

3 0

3 years ago

Choose the solution(s) of the following system of equations:

matrenka [14]

Answer: B D F H

Step-by-step explanation:

- no solution no

- ( sqrt 6,0) yes

- ( sqrt 5,0) no

- ( sqrt 5, -1) yes

- infinitely many solutions no

- ( -sqrt 6, 0) yes

- ( -sqrt 5, 1) no

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3 years ago

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A sample is selected from a population with μ = 46, and a treatment is administered to the sample. After treatment, the sample m

Georgia [21]

Answer:

0.5

Step-by-step explanation:

Solution:-

- The sample mean before treatment, μ1 = 46

- The sample mean after treatment, μ2 = 48

- The sample standard deviation σ = √16 = 4

- For the independent samples T-test, Cohen's d is determined by calculating the mean difference between your two groups, and then dividing the result by the pooled standard deviation.

Cohen's d = $\frac{u2 - u1}{sd_p_o_o_l_e_d}$

- Where, the pooled standard deviation (sd_pooled) is calculated using the formula:

$sd_p_o_o_l_e_d =\sqrt{\frac{SD_1^2 +SD_2^2}{2} }$

- Assuming that population standard deviation and sample standard deviation are same:

SD_1 = SD_2 = σ = 4

- Then,

$sd_p_o_o_l_e_d =\sqrt{\frac{4^2 +4^2}{2} } = 4$

- The cohen's d can now be evaliated:

Cohen's d = $\frac{48 - 46}{4} = 0.5$

6 0

3 years ago

Divide 33 photos into two groups so the ratio is 4:7

Alenkinab [10]

I think the answer is 16.5 sorry if its not right

8 0

3 years ago