3 years ago

Can someone help me please I don't understand

1 answer:

7 0

The formula for surface area are 2(LW+LH+WH). If the numbers were being placed in the formula, it will become 2[(9*7)+(9*12)+(12*7)]. 9*7 is 63, 9*12 is 108, 12*7 is 84 and the sum will be 255, and multiply by 2 is 510.
The answer is 510

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ankoles [38]

Simplify the radical, then combine the numbers.
-131

4 0

2 years ago

How do I do any of this?!

evablogger [386]

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7 0

3 years ago

Does someone mind helping me with this problem? Thank you!

Jet001 [13]

Answer:

875 ft²

Step-by-step explanation:

Finding area of similar rectangles:

Scale factor = EF : AB

= 25 : 5

= 5 : 1

$\sf \dfrac{Area \ of \ bigger \ rectangle}{Area \ of \ smaller \ rectangle}= (Scale \ factor)^2$

$\dfrac{Area \ of \ bigger \ rectangle}{35} =\left(\dfrac{5}{1}\right)^2$

$\text{Area of bigger rectangle = $\dfrac{25}{1}*35$}$

Area or rectangle EFGH = 875 ft²

4 0

2 years ago

Read 2 more answers

65% of the total number of students are girls and there are 224 boys. find the percent of boys ? find the number of girls?

SOVA2 [1]

ANSWER:

Well the percentage of boys would be 35%

I believe the number of girls is 416

hope this helps

7 0

3 years ago

The question is in the picture. I need help fast if possible. Thank you

Vera_Pavlovna [14]

Answer:

145

Step-by-step explanation:

Supplementary angles add up to equal 180 degrees

Thus, ∠ABC + ∠DEF = 180°

If ∠ABC = 35

Then 35 + ∠DEF = 180

180 - 35 = 145

Hence, ∠DEF = 145

4 0

3 years ago