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2 years ago

What is the value of 5k2−6 when k = 9?

Mathematics

1 answer:

Anarel [89]2 years ago

5 0

Answer:

Step-by-step explanation:

Plug in 9 for k.

5(9)(2) - 6

first: (9)(2) = 9 x 2 = 18

5(18) - 6

second: 5(18) = 5 x 18 = 90

last: 90 - 6 = ?

hope this helps

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Is this right, can someone please explain so?

Orlov [11]

You have to turn them in to the lowest common denominator

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3 years ago

Find the right quotient. 36m 5 n 5 ÷ (12m 3)

polet [3.4K]

ANSWER

The right quotient is

$3 {m}^{2} {n}^{5}$

EXPLANATION

The given expression is :

$\frac{36 {m}^{5} {n}^{5} }{12 {m}^{3} }$

$\frac{36 {m}^{5} {n}^{5} }{12 {m}^{3} } = \frac{36}{12} \times \frac{ {m}^{5} }{ {m}^{3}} \times {n}^{5}$

$\frac{36 {m}^{5} {n}^{5} }{12 {m}^{3} } = 3\times \frac{ {m}^{5} }{ {m}^{3}} \times {n}^{5}$

Recall that,

$\frac{ {a}^{m} }{ {a}^{n} } = {a}^{m - n}$
We apply this property to obtain;

$\frac{36 {m}^{5} {n}^{5} }{12 {m}^{3} } = 3 \times {m}^{5 - 3} \times {n}^{5}$

$\frac{36 {m}^{5} {n}^{5} }{12 {m}^{3} } = 3 {m}^{2} {n}^{5}$

5 0

3 years ago

Read 2 more answers

Maura spent 1 1/2 hours on science homework. This was 2/3 of the total time she spent on homework. How much time did she spend o

Rudik [331]

It is about 2.25 hours

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3 years ago

Simplify the expression 11+3(−5+4)

Ghella [55]

Answer:

= 11+3(-1)

= -14

The answer is -14.

Step-by-step explanation:

Please mark me brainliest

7 0

2 years ago

Sorry I also need help with this question

Tomtit [17]

Answer: B

Step-by-step explanation:

(f/g) means to divide f(x) by g(x).

$(f/g)(x)=\frac{3x+2}{3x-5}$

To find the domain, you set the domain equal to zero and solve for x.

3x-5=0 [add both sides by 5]

3x=5 [divide both sides by 3]

x=5/3

Now, we know that B is the correct answer.

4 0

3 years ago