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3 years ago

Expand & simplify 3 ( x + 6 ) + 5 ( x − 3 ) Just the answer pls

Mathematics

2 answers:

mestny [16]3 years ago

8 0

Just distribute then combine the like terms

8x + 3

Alina [70]3 years ago

7 0

(45 + 33 x + 6 x ^ 2)

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What values of a and b make the equation true? StartRoot 648 EndRoot = StartRoot 2 Superscript a Baseline times 3 Superscript b

kramer

Option C: $a=3, b=4$ is the value of a and b

Explanation:

Given that the expression $\sqrt{648}=\sqrt{2^a\times3^b}$

We need to determine the value of a and b

Let us consider the term $\sqrt{648}$ and take the prime factorization of the term 648

Thus, we have,

648 divides by 2,

$648=2 \cdot 324$

324 divides by 2,

$648=2 \cdot 2 \cdot 162$

162 divides by 2,

$648=2 \cdot 2 \cdot 2 \cdot 81$

81 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 27$

27 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 3 \cdot 9$

9 divides by 3,

$648=2 \cdot 2 \cdot 2 \cdot 3 \cdot 3 \cdot 3 \cdot 3$

Thus, we have,

$\sqrt{648}=\sqrt{2^{3} \cdot 3^{4}}$

Therefore, equating the powers of 2 and 3, we get,

$a=3, b=4$

Hence, the value of a and b is 3 and 4

Thus, Option C is the correct answer.

4 0

3 years ago

Read 2 more answers

Sue bought a pair of jeans and a shirt for $55.75. If the jeans cost $25.25, how much did she pay for the shirt?

givi [52]

Hey there!

In order to find the amount that Sue paid for the shirt, all you have to do is subtract the price of the jeans from the total amount that she paid for the jeans and the shirt.

55.75 – 25.25 = 30.5

Sue paid $30.50 for the shirt, making your answer A.

Hope this helped you out! :-)

6 0

3 years ago

What is the name of the period that has the digits 751 in the number 751,486

Rama09 [41]

Seven hundred and fifty one thousand

I hope this helps

3 0

4 years ago

A 90% confidence interval is (35 45). What is the margin of error?

MA_775_DIABLO [31]

Answer:

option A 5

I hope it's correct

.....

7 0

3 years ago

HELP ME PLZ I WILL MARK LCM

Nataly [62]

Answer:

Step-by-step explanation:

Find the multiples of 9

9,18,27,36

Find the multiples of 6

6,12,18,24

The first common multiple is 18

8 0

3 years ago

Read 2 more answers