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3 years ago

Using the correct order of operations, what does this formula equal? =5+3*2

Mathematics

2 answers:

Kobotan [32]3 years ago

8 0

Answer:

Step-by-step explanation:

do multiplication/division before addition/subtraction

Rama09 [41]3 years ago

7 0

Answer:

Step-by-step explanation:

PEMDAS

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

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Polygon Y is a scaled copy of Polygon X using a scale factor of \dfrac13 3 1 start fraction, 1, divided by, 3, end fraction. P

emmainna [20.7K]

Answer:

Polygon Y's area is one ninth (1/9) of Polygon X's area

Step-by-step explanation:

we know that

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

In this problem

Let

z-----> the scale factor

a-----> Polygon Y's area

b----> Polygon X's area

$z^{2}=\frac{a}{b}$

we have

$z=\frac{1}{3}$

substitute

$(\frac{1}{3})^{2}=\frac{a}{b}$

$\frac{1}{9}=\frac{a}{b}$

$a=\frac{1}{9}b$

therefore

Polygon Y's area is one ninth (1/9) of Polygon X's area

8 0

3 years ago

The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May it cost her $420 to drive 500 mi

djyliett [7]

Answer:

$C(d) = \frac{1}{5}d + 320$

Step-by-step explanation:

Given

$d \to miles$

$C \to cost$

So:

$(d_1,C_1) = (500,420)$ --- May

$(d_2,C_2) = (620,444)$ --- June

Required

Express as a function

Start by calculating the slope (m)

$m = \frac{\triangle C}{\triangle d}$

$m = \frac{444-420}{620-500}$

$m = \frac{24}{120}$

Simplify

$m = \frac{1}{5}$

The equation is:

$C(d) = m(d - d_1) +C_1$

$C(d) = \frac{1}{5}(d - 500) +420$

$C(d) = \frac{1}{5}d - 100 +420$

Take LCM

$C(d) = \frac{1}{5}d + 320$

6 0

3 years ago

What equals -9 + 6 please help me pleassssssse

AURORKA [14]

Answer:

-3

Step-by-step explanation:

since the 9 in negative you subtract 9 by 6 and you get 3 then you put the negative sign in front of the 3 making it -3

3 0

2 years ago

Read 2 more answers

Find the equivalent expressions for (x + 7)(x + 1).

Natali5045456 [20]

Answer:

The answers should be

x^2 + 8x + 7

x(x + 8) +7

Step-by-step explanation:

(x + 7)(x + 1)

x(x) + x(1) + 7(x) + 7(1)

x^2 + x + 7x + 7

x^2 + 8x + 7

5 0

3 years ago

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Erika paid a self-employment tax last year. She calculated the self-employment tax for different amounts of net earnings and rec

Julli [10]

Answer:

the answer is B

Step-by-step explanation:

7 0

3 years ago

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