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3 years ago

12

Jamie has a rectangular room in her home with a width of 8 feet and a diagonal distance of 17 feet. Find the total area of the r

oom.

1 answer:

Grace [21]3 years ago

8 0

Step-by-step explanation:

8²+x²=17²

74+×²=289

x²=225

Sq root both sides

x=15

15×8=120 Sq ft

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The price of a cup coffee was 2.40 yesterday. Today, the price fell to 2.15 find the percentage decrease. Round the answer to th

irakobra [83]

ANSWER

The percentage decrease is 10.4%.

EXPLANATION

To calculate percentage decrease, use the formula,

Percentage decrease

$= \frac{new \: price - old \: price}{old \: price} \times 100\%$

Yesterday the price of coffee was 2.40. This is the old price.

Today the price is 2.15. This is the new price.

$= \frac{2.15 - 2.40}{2.40} \times 100\%$

$= \frac{ - 0.25}{2.40} \times 100\%$

$= - 0. 10416667 \times 100\%$

$= - 10.416667\%$

To the nearest tenth, we have:

$- 10.4\%$

Therefore the percentage decrease is 10.4%.

8 0

2 years ago

On a piece of paper, use a protractor to construct a triangle with angle measures of 40° and 60º.

andrew-mc [135]

Answer:

There are 180 degrees in a triangle so it is 80 degrees

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2 years ago

Read 2 more answers

The computer rendering of a mural in a town's square uses

rjkz [21]

Answer:

B

The highest point of the mountain defined by the function is 16 feet.

ED 2020

Step-by-step explanation:

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3 years ago

PLEASE HELP !! WHAT IS THE ANSWER TO THIS PROBLEM??

choli [55]

Answer:

The formulas for area of a triangle and area of a square

Step-by-step explanation:

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3 years ago

Write an equation of a line in slope intercept form that is parallel to y = 3x+6 and passes through the point (-10, 2.5)

TiliK225 [7]

1) Line should be parallel to y = 3x+6, so slope of this line should be =3.

y=mx +b

y=3x +b

Now we have to find b (y-intercept), using the point (-10, 2.5).

2.5 = 3*(-10)+b

b=2.5+30=32.5

y=3x + 32.5

2) The line should be perpendicular to y = -4x -2, so its slope is going to be negative reciprocal m= 1/4.

Now we have to find b (y-intercept), using the point (-16, -11).

y=(1/4)x +b

-11=(1/4)*(-16) + b

-11 = -4 +b

b = -7

y=(1/4)x - 7

3 0

3 years ago