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3 years ago

Please need help fast. Look at the picture. Please explain.

Mathematics

1 answer:

Zigmanuir [339]3 years ago

7 0

The answer is 17

This is because 1 + 2 must equal 180 as they are in a straight line.
So 4x + 2 + 110 = 180
Take away 110 from both sides
4x + 2 = 70
Take away 2 from both sides to get 4x = 68. Finally, divide both sides by 4 to get x = 17

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Write 2 subtraction equations to show how to find 15-7

Mnenie [13.5K]

So 15-7 is 8

Here are some things I did:

10-2 or 28-20

6 0

3 years ago

. An average car uses 1 ounces of

Inessa [10]

ANSWER:

2 ounces.

EXPLANATION:

it uses 1 once of gasoline every time it is on not driving and it is at a traffic light for 2 minutes then 1 + 1 = 2.

1 ounce + 1 ounce = 2 ounces of gasoline it uses.

3 0

2 years ago

Which of the following are solutions to the equation below? Check all that apply. 4x2 - 81 = 0

Vinil7 [7]

Answer:

9/2 -9/2

Step-by-step explanation:

Hope this helps! ;-)

8 0

2 years ago

Please help, and stop sending me links

otez555 [7]

Answer:

I need this answer as well

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The geometric sequence a_ia i a, start subscript, i, end subscript is defined by the formula: a_1 = -\dfrac13a 1 =− 3 1 a,

slava [35]

Answer:

1.014*10^35

Step-by-step explanation:

Given the following geometric sequence

$a_1 = \frac{-1}{3} \\a_i = a_{i-1}*(-3)$

Sum of nth term of the GP is expressed as;

$S_n = \frac{a(1-r^n)}{1-r}$

a = -1/3

n = 75

r = a2/a1

a2 = -3a1

a2 = -3(-1/3)

a2 = 1

r = 1/(-1/3)

r = -3

Substitute the given values in the formula;

$S_n = \frac{-1/3(3^{75} - 1)}{3-1}\\S_n = \frac{3^{75}-1}{-6} \\S_{75} = 1.014*10^{35}$

Hence the sum of the first 75 terms is 1.014*10^35

5 0

3 years ago