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3 years ago

WILL GIVE BRAILIEST!!

Mathematics

2 answers:

jekas [21]3 years ago

6 0

Answer:

d . 9 ^ 2

Step-by-step explanation:

9 ^ 3 * 9 ^ 4 / 9 ^ 5

= 81

= 9 ^ 2

so the answer is D

Mark brainliest

Kamila [148]3 years ago

5 0

$d. \: {9}^{2}$ ✅

Step-by-step explanation:

$\frac{ {9}^{3} \times {9}^{4} }{ {9}^{5} } \\ = \frac{ {9}^{3 + 4} }{ {9}^{5} } \\ = \frac{ {9}^{7} }{ {9}^{5} } \\ = {9}^{7 - 5} \\ = {9}^{2}$

<u>Note</u>:-

${a}^{m} \times {a}^{n} = {a}^{m + n}$

${a}^{m} \div {a}^{n} = {a}^{m - n}$

$\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘$

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Determine polynomial expressions for the perimeter and the area of the figure shown below

kenny6666 [7]

Perimeter: 4x + 2

The perimeter is equal to 2 times the length plus 2 times the width.

2(x + 1) + 2(x)

2x + 2 + 2x

4x + 2

Area: x^2 + x

The area is equal to the length times the width.

(x + 1)(x)

x^2 + x

Hope this helps! :)

5 0

3 years ago

1.If 9 pencils cost .45, what would 12 pencils cost?

earnstyle [38]

Answer:

9 pencils = 0.45

12 pencils = 0.60

Brainiest plz :)

6 0

3 years ago

Read 2 more answers

Solve.

abruzzese [7]

Answer:

$x=\frac{15}{4}=3\frac{3}{4}$

Equation:

$\frac{2}{3}x+\frac{5}{6} =\frac{10}{3}$

<h3>Step-by-step solution</h3>

Linear equations with one unknown

_____________________________________

1. Group all constants on the right side of the equation

$\frac{2}{3}\cdot x+\frac{5}{6}=\frac{10}{3}$

Subtract $5/6$ from both sides:

$\frac{2}{3}x+\frac{5}{6}-\frac{5}{6}=\frac{10}{3}-\frac{5}{6}$

Combine the fractions:

$\frac{2}{3}\cdot x+\frac{5-5}{6}=\frac{10}{3}-\frac{5}{6}$

Combine the numerators:

$\frac{2}{3}\cdot x+\frac{0}{6}=\frac{10}{3}-\frac{5}{6}$

Reduce the zero numerator:

$\frac{2}{3}\cdot x+0=\frac{10}{3}-\frac{5}{6}$

Simplify the arithmetic:

$\frac{2}{3}\cdot x=\frac{10}{3}-\frac{5}{6}$

Find the lowest common denominator:

$\frac{2}{3}\cdot x=\frac{10\cdot 2}{3\cdot 2}+\frac{-5}{6}$

Multiply the denominators:

$\frac{2}{3}\cdot x=\frac{10\cdot 2}{6}+\frac{-5}{6}$

Multiply the numerators:

$\frac{2}{3}\cdot x=\frac{20}{6}+\frac{-5}{6}$

Combine the fractions:

$\frac{2}{3}\cdot x=\frac{20-5}{6}$

Combine the numerators:

$\frac{2}{3}\cdot x=\frac{15}{6}$

Find the greatest common factor of the numerator and denominator:

$\frac{2}{3}\cdot x=\frac{5\cdot 3}{2\cdot 3}$

Factor out and cancel the greatest common factor:

$\frac{2}{3}\cdot x=\frac{5}{2}$

2. Isolate the x

$\frac{2}{3}\cdot x=\frac{5}{2}$

Multiply both sides by inverse fraction 3/2:

$\frac{2}{3}x\cdot \frac{3}{2}=\frac{5}{2}\cdot \frac{3}{2}$

Group like terms:

$\frac{2}{3}\cdot \frac{3}{2}x=\frac{5}{2}\cdot \frac{3}{2}$

Simplify the fraction:

$x=\frac{5}{2}\cdot \frac{3}{2}$

Multiply the fractions:

$x=\frac{5\cdot 3}{2\cdot 2}$

Simplify the arithmetic:

$x=\frac{15}{2\cdot 2}$

Simplify the arithmetic:

$x=\frac{15}{4}$

______________________

Why learn this

Linear equations cannot tell you the future, but they can give you a good idea of what to expect so you can plan ahead. How long will it take you to fill your swimming pool? How much money will you earn during summer break? What are the quantities you need for your favorite recipe to make enough for all your friends?

Linear equations explain some of the relationships between what we know and what we want to know and can help us solve a wide range of problems we might encounter in our everyday lives.

__________________________

Terms and topics

Linear equations with one unknown

4 0

2 years ago

I hate math bro please help me

wariber [46]

Answer:

Step-by-step explanation:

D is the correct answer, (-y, x)

5 0

3 years ago

A.<br><br> b.<br><br> c.<br><br> d.<br> please help me

Yuliya22 [10]

Answer:

Step-by-step explanation:

the answer is - 11/12

6 0

4 years ago