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2 years ago

Helppp!!!!! 2 questions answer both

Mathematics

2 answers:

Ann [662]2 years ago

7 0

I agree with what she saidddd ^

yKpoI14uk [10]2 years ago

3 0

1. The answer would be about 20.72, or 20.7142 if you don’t want the rounded version

2. The answer is -12.8

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The sum of four consecutive numbers is 230. What is the largest of these numbers

vodka [1.7K]

Answer:

n + n+1 + n+2 + n+3 = 230

4n = 224

n = 56 and largest number = 59

Step-by-step explanation:

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3 years ago

Simplify 1/4-(-1/5)/3/5

IRINA_888 [86]

Answer:

exact form:37/100 Decimal Form: 0.37

Step-by-step explanation:

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3 years ago

What is the domain of the function shown in thr table

Reil [10]

Option A ( 2 , 4 , 6 , 8) because domain are x values

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2 years ago

are any two regular polygons similar. The area of the smaller figure is about 390 cm^2. choose the best estimate of the area of

galben [10]

Answer:

The best estimate of the area of the larger figure is $693\ cm^{2}$

Step-by-step explanation:

step 1

<em>Find the scale factor</em>

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

x-----> the corresponding side of the larger figure

y-----> the corresponding side of the smaller figure

$z=\frac{x}{y}$

we have

$x=12\ cm$

$y=9\ cm$

substitute

$z=\frac{12}{9}=\frac{4}{3}$ -----> the scale factor

step 2

<em>Find the area of the larger figure</em>

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z----> the scale factor

x-----> the area of the larger figure

y-----> the area of the smaller figure

$z^{2}=\frac{x}{y}$

we have

$z=\frac{4}{3}$

$y=390\ cm^{2}$

substitute and solve for x

$(\frac{4}{3})^{2}=\frac{x}{390}$

$(\frac{16}{9})=\frac{x}{390}$

$x=390*16/9=693.33\ cm^{2}$

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2 years ago

The price of a item yesterday was $160. today, the price fell to $104. find the percentage decrease

tekilochka [14]

Answer:

-35% decrease in price.

Step-by-step explanation:

Type in "percentage decrease calculator" onto google and click on first result

Here's the equation

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3 years ago