3 years ago

Evaluate the expression when a = -6 and b = 3 A -2b

Mathematics

1 answer:

Rasek [7]3 years ago

6 0

Answer:

-6- (2(3))

-6-6=-12

Answer= -12

Step-by-step explanation:

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Find the distance between <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B12%7D" id="TexFormula1" title="\frac{7}{12}" alt="\

jek_recluse [69]

Answer:

5/36

Explanation:

Distance on a number line is basically difference between two numbers. So we subtract the two numbers. This can be solved on a calculator btw. 7/12 - √16/81 = 5/36.

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2 years ago

Pls can someone help me :4u²-u-3

Bas_tet [7]

(4u+3) (u-1) is the answer

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3 years ago

What is the greatest common factor of 72 and 18

Anon25 [30]

Answer:

Step-by-step explanation:

The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

The factors of 18 are 1, 2, 3, 6, 9, 18

The common factors are 1, 2, 3, 6, 9, 18

The greatest common factor = 18

8 0

3 years ago

Read 2 more answers

If tñ=2ñ+3, find S10

Allisa [31]

Answer:

$S_{10}=280$

Step-by-step explanation:

Given that,

$t_n=2n+3$ ...(1)

We need to find the value of $S_{10}$ .

Put n = 1 to find the first term.

$t_1=2(1)+3=5$

Put n = 2 to find the second term.

$t_2=2(2)+3=7$

Put n = 3 to find the third term.

$t_3=2(3)+3=9$

Put n = 10 to find the tenth term.

$t_{10}=2(10)+3=23$

It means we need to find the sum of 5,7,9,.....,23.

The formula for the sum of n terms is given by :

$S_=\dfrac{n}{2}(a+a_n)$

We have, n = 10, a = 5 and $a_n=23$

So,

$S=\dfrac{10}{2}(5+23)\\\\S_{10}=10\times 28\\\\=280$

So, the value of $S_{10}$ is equal to 280.

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3 years ago

What is the equation of the line ?

Basile [38]

Either 1, or 2, smart ppl help!

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3 years ago