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3 years ago

Find the value of x (x +40) x

Mathematics

1 answer:

gayaneshka [121]3 years ago

8 0

Answer: x^2 + 40x

Nothing can further be done with the topic.....

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4. The base of a triangle is 4 3/4ft. The height of the

astra-53 [7]

Answer:

39 $\frac{9}{10\\}$

Step-by-step explanation:

4 $\frac{3}{4}$ × 8 $\frac{2}{5}$ = 39 $\frac{9}{10\\}$

6 0

3 years ago

What is the area of the base?

MAXImum [283]

Answer:

24 in²

Step-by-step explanation:

Hello there!

the figure shown is a triangular prism

The base is the triangle

So we need to find the area of the triangle using this formula

$A=\frac{bh}{2}$

where b = base and h = height

The base (triangle) has a base length of 8 inches and a height of 6 inches

Having found the information we needed, we plug it into the formula

$A=\frac{6*8}{2} \\6*8=48\\\frac{48}{2} =24\\A=24in^2$

So the area of the base is 24 in²

7 0

3 years ago

What is 42÷(15-2 by the power of 3<br><img src="https://tex.z-dn.net/?f=42%20%5Cdiv%2815%20-%202%20%7B%7D%5E%7B3%7D%20%29" id="T

tigry1 [53]

Answer: 6

Explanation: first you have to get rid of the 2 power of 3, 2 x 2 x 2 is 8. Then 15-8=7. Then 42➗7 is 6

4 0

3 years ago

PLS ANSWER THIS ASAP

Alona [7]

It is the first answer choice

5 0

2 years ago

Read 2 more answers

A random sample of 20 houses selected from a city showed that the mean size of these houses is 1880 square feet with a standard

azamat

Answer:

Option C

Step-by-step explanation:

Given that for a random sample of 20 houses selected from a city showed that the mean size of these houses is 1880 square feet with a standard deviation of 320 square feet.

X, the sizes of houses is Normal

Hence sample mean will be normal with

Mean = 1880

and std dev = $\frac{320}{\sqrt{20} } \\=71.5542$

For 90% confidence interval critical value for t with degree of freedom 19 is

1.328

Confidence interval upper bound

= mean + margin of error

= $1880+1.328*71.55\\=1975$

Option C is right

3 0

3 years ago