3 years ago

I NEED HELP PLEASE ASAP!!!

Mathematics

2 answers:

inna [77]3 years ago

7 0

Answer:

its the last one

Step-by-step explanation:

Vilka [71]3 years ago

5 0

Answer:

Step-by-step explanation:

To find the surface area of a regular pyramid use the formula:

S = 1/2 × l × p + b

Surface = 1/2 × lateral height × perimeter of the base + area of the base

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How many square metre of carpeting are needed to cover a floor that measures 8m by 5m

grigory [225]

Answer:

40 meters squared

Step-by-step explanation:

8 * 5 = 40

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3 years ago

Hi plz help, if you can ill mark you 5 starz! :)

weqwewe [10]

Answer:

Step-by-step explanation:

Part A= 59.11

Part B: i think is B

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3 years ago

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What is the area of triangle abc below? If necessary, round your answer to two decimal places..... PLEASE PLEASE HELP ME

antiseptic1488 [7]

For a triangle:
$A=\frac{bh}{2}$
$A=\frac{b \times 7.9}{2}$
$b=AD+DC$
Use Pythagorean theorem twice:
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Thus:
$b=26.9$

And:
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3 years ago

Alex is drawing rectangles with different areas on a centimetre grid.He can draw 3 different rectangles with an area of 12cm2.Ho

stiks02 [169]

Answer:

2.75 or 2

Step-by-step explanation:

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3 years ago

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In this situation, which equation is NOT equivalent to the rest? Mrs. Jones deducts $3 from each of her 5 children's allowances

lawyer [7]

Answer:

c. 5x - 3 = 125

Step-by-step explanation:

Mrs. Jones deducts $3 from each of her 5 children's allowances this week because they didn't finish their chores. They then received a total of $125 in allowance. a. 5(x - 3) = 125

b. 5x - 15 = 125

c. 5x - 3 = 125

d. 5x = 140

Solution:

Let x represent the allowance for each of Mrs. Jones children. Since she deducts $3 from each children because they didn't finish their chores, the allowance for each child becomes x - 3.

There are 5 children, hence the allowance for the 5 children would be:

5(x-3)

Since they received a total of $125 in allowance, hence:

5(x-3) = 125

5x - 15 = 125

5x = 125 + 15

5x = 140

Option c is wrong

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2 years ago