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2 years ago

help please!! i have 20 minutes left to do this and I don't get the rest :( please answer the 3 of them !!

Mathematics

2 answers:

bonufazy [111]2 years ago

7 0

Answer:

1st question answer is 10cm2

2nd question answer is 1368 in2

3rd question answer is 45 in2

Step-by-step explanation:

1st question explanation is 16+ 24 = 40

2nd question explanation is 19 x 8 x 9 = 1368

3rd question explanation is 8 x 2 1/4 x 2 1/2 = 45

DON'T COMPLAIN IF WRONG!

andre [41]2 years ago

3 0

Answer:

5) 40 square cm

6) 1368 cube in

7) 50 cube in

Step-by-step explanation:

ill explain later if you want me to :)

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3 years ago

Pls Help!!<br><br> What is the probability of a sum of 3 or 6 or 9?

trapecia [35]

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3 0

3 years ago

John is building his daughter a doll house that is a miniature model of their house. The front of their house has a circular win

n200080 [17]

Answer:

see the procedure

Step-by-step explanation:

we know that

The scale factor of the model is 1/30

That means ----> 1 unit in the model represent 30 units in the actual

using proportion

Find out how much represent 5 ft in the model

Convert feet to inches

Remember that

$1\ ft=12\ in$

$5\ ft=5(12)=60\ in$

Let

x -----> the diameter of the circular window in the model house in inches

$\frac{1}{30}=\frac{x}{60}\\\\x=\frac{60}{30}\ in$

Simplify

$2\ in$

therefore

The diameter of the circular window in the model house is 2 inches

see the attached figure to better understand the problem

8 0

3 years ago

At a party of 102 people, 72 Ib of potato salad is served. Write and solve an equation to find how many people each pound of pot

zysi [14]

Answer:

102= 72x; x = around 1.42

Step-by-step explanation:

4 0

3 years ago

Find the difference.

MrMuchimi

To find the difference of the given expression, first step is to get rid of parenthesis. So, distribute negative sign to each terms of the second parenthesis. Hence,

(9x² + 10x + 4) - (9x² + 5x - 1)

= 9x² + 10x + 4 - 9x² - 5x + 1.

= (9x² - 9x²) +(10x - 5x) + (4 + 1) Group the like terms.

= 0 + 5x + 5 Combine the like terms.

= 5x + 5.

So, first choice is correct.

Hope this helps you!

3 0

3 years ago