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3 years ago

Which expression is equivalent to r9•r3

Mathematics

1 answer:

evablogger [386]3 years ago

6 0

Answer:

An equivalent expression to this equation is r¹²

Step-by-step explanation:

When multiplying exponents, you add the exponential numbers together. So, you would add 9 and 3 together.

r⁹ × r³ = r¹²

So, an expression that is equivalent to the equation is r¹²

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Which theorem shows WQD = XRD

daser333 [38]

Answer:

SAS

Step-by-step explanation:

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2 years ago

The circle graph below represents the opinions of 100 students about their favorite sports. Each student chose exactly one of th

bagirrra123 [75]

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Yo…what’s the graph?

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2 years ago

-18.3 = b + -8.3 b =

Sauron [17]

Answer:

Here,

-18.3=b+ -8.3

-18.3+8.3=b

-10=b

the value of b is -10.

3 0

3 years ago

What’s the answer but you also have to simplify

Jlenok [28]

Answer:

The answer is 9x² + 3x - 2.

Step-by-step explanation:

1) Collect like terms.

$(7x^{2} + {2x}^{2} ) + ( - 2x + 5x) + (8 - 10)$

2) Simplify.

${9x}^{2} + 3x - 2$

Therefor, the answer is 9x² + 3x - 2.

6 0

3 years ago

A carpenter bought 750 nails. Each nail has a mass of 5.2×10−3 kilogram. What is the total mass, in kilograms, of the nails the

lawyer [7]

The total mass, in kilograms, of the nails the carpenter bought is 3.9 kilogram

<h3>Solution:</h3>

Given that carpenter bought 750 nails

Each nail has a mass of $5.2 \times 10^{-3}$ kilogram

To find: total mass, in kilograms of the nails bought

The total mass of the nails bought can be found out by multiplying number of nails bought by mass of each nail

Number of nails bought = 750

Mass of each nail = $5.2 \times 10^{-3}$ kilogram

total mass of the nails bought = number of nails bought x mass of each nail

$\text {total mass of the nails bought }=750 \times 5.2 \times 10^{-3}$

$\text {total mass of the nails bought }=3900 \times 10^{-3}=\frac{3900}{1000}=3.9$

Thus the total mass of nails bought is 3.9 kilogram

4 0

3 years ago