3 years ago

What is the answer to -11z-4+6z+5

Mathematics

1 answer:

Annette [7]3 years ago

8 0

Answer:

-5z+1

Step-by-step explanation:

-11z-4+6z+5

-11z+6z-4+5

-5z+1

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Can anyone tell me to solve this..

ivann1987 [24]

Really ! What are you going to do when the moment comes
on an exam when you have to do it on your own ?

<u>(1/4) (8x + 16) = -10</u>

Multiply each side by 4 :

8x + 16 = -40

Subtract 16 from each side:

8x = -56

Divide each side by 8 :

<u>x = -7</u>

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3 years ago

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Based on sample results, a 90% confidence interval for the mean servings of fruit per day consumed by grade school children is (

Artemon [7]

Answer: 1.12

Step-by-step explanation:

The confidence interval for the mean $\mu$ and margin of error E is given by :-

$(\mu-E,\ \mu+E)$ --------------(1)

The given confidence interval : (0.21, 2.45) -------------(2)

From (1) and (2), we have

$\mu-E=0.21-------(3)\\\\\mu+E=2.45--------(4)$

Subtract equation (3) from (4), we get

$2E=2.45-0.21\\\\\Rightarrow\ 2E=2.24\\\\\Rightarrow\ E=\dfrac{2.24}{2}=1.12$

Hence, the margin of error is 1.12 .

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3 years ago

Whats the Area? how do i find it? In these specific questions?

just olya [345]

The formula for finding the area of a square is:
${s}^{2}$

The formula for finding the area of a triangle is:
$\frac{1}{2} bh$

So for the square the area would be:
${2x}^{2} \times {2x}^{2} = {4x}^{2}$

The area for the triangle would be:

$\frac{1}{2} {2c}^{3} \times 4c = {4c}^{2}$

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3 years ago

Identify the solution for the system of equations graphed here.

Allushta [10]

The answer would be where the points meet.

In this case it would be (1,-1)

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What is .00062 as a percent?

Alex73 [517]

0.0062 is 0.062%
If this helped smash that thanks button

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