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patriot [66]
3 years ago
6

Which tool is not used for measurement

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0

what are the options  Step-by-step explanation:

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Solve: k /8 + 1 − = −19
Sonja [21]

Answer:

k = -144

Step-by-step explanation:

6 0
3 years ago
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Which expression is equivalent to -11 - (-7)?
snow_lady [41]

Answer:

d

Step-by-step explanation:

=-4

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PLZ HELP RIGHT NOW PLZ I WILL MARK BRAINLIEST I BEG NO SILLY ANWSER =(
kipiarov [429]

Answer:

1. x=-3

2. m=4

3. -6=b

4. x=3

Step-by-step explanation:

1. 7(3-3x)=84 what is x

- Distribute the 7 using distributive property, which will give you 21-21x=84.

- Add 21 to both sides to aim to isolate the x variable, which will give you -23x=63.

- Divide both sides by the coefficient of x, -23, to finally get x by itself: x=-3

2. -7(-4-3m)=112 what is m

- Distribute the -7 using distributive property, which will give you 28+21m=112. Be wary of negatives.

- Subtract 28 to both sides, which will give you 21m=84.

- Divide both sides by 21 (the coefficient of m) to get m by itself: m=4

3.-182=7(2b-8)+7b what is b

- Distribute the 7 using distributive property, which will give you -182=14b-56+7b

- Add like terms to get -182=21b-56.

- Add both sides by 56, which will get you -126=21b.

- Divide both sides by the coefficient of b, 21, to get b by itself: -6=b

4. -101 = -5(8x-5) -6 what is x

- Distribute the -5 using distributive property, which will give you -101=-40x+25-6. Beware of negatives.

- Add like terms to get -101=-40x+19.

- Subtract both sides by 19 to get -120=-40x.

- Divide both sides by 40 (the coefficient of x) to get 3=x.

Hope this helps!

8 0
3 years ago
Evaluate each series.<br> 50 points and brainless!
konstantin123 [22]

Answer:

<u>Sum of n terms of a GP:</u>

  • Sₙ = a₁(rⁿ - 1)/(r - 1)

#1

  • a₁ = 5
  • r = 2
  • n = 9
  • S₉ = 5(2⁹ - 1)/(2 - 1) = 5(511) = 2555

Correct choice is C

-----------------------------

#2

  • a₁ = 12
  • r = 1/2
  • n = 5
  • S₅ = 12(1 - (1/2)⁵)/(1 - 1/2) = 12(31/32)/(1/2) = 23.25

Correct choice is A

3 0
3 years ago
100 Points<br><br> Solve for X
bixtya [17]
A) By the rules of secants,
  5(x +5) = 6(6 +4)
  x + 5 = 12
  x = 7


b) 3(3 +5) = 4(x +4)
  6 = x +4
  2 = x
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3 years ago
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