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Ronch [10]
3 years ago
7

What is -2(x + 7) in math

Mathematics
1 answer:
rewona [7]3 years ago
5 0
Apply the distributive property, which says that a(b+c)= ab+ac.

-2(x+7)= -2(x)+ -2(7)

-2(x)= -2x
-2(7)=-14

Put it together.

Final answer: -2x-14
You might be interested in
Determining whether an integer satisfies an inequality
Leto [7]
First we have - 6 < - 7 - 4x

Then we need to isolate the x of the inequality 4x < - 7 + 6

4x < - 1

x < - 1/4

The values less than - 1/4 are solutions for x

Btw if you need a tutor let me know:)
3 0
2 years ago
The accompanying data represent the actual amount (in mL) poured into a short, wide glass for individuals asked to pour 44.3 mL
kherson [118]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data below :

x : 89.3 68.6 32.7 37.3 39.7 46.7 66.1 79.4 66.4 52.1 47.3 64.4 53.7 63.4 46.2 63.0 92.1 57.6

Mean(m) = ΣX / n

ΣX = 1066 ; n = number of observations = 18

Mean(m) = 1066 / 18

Mean = 59.22

Standard deviation (σ) :

Using the online standard deviation calculator :

σ = √(Σ(x - m)²/n-1)

σ = √264.198395

σ = 16.72

The mean amount poured into a glass for the 18 samples is 59.22 while the variation in the data samples from the mean value is 16.72.

typical amount poured into a short, wide glass is 19.7 mL. A typical deviation from the mean amount poured is_____mL.

(59.22 - 19.7) mL = 39.52mL

Mean amount poured into a tall slender glass = 51.283

Mean (short wide glass) = 59.22mL

Mean (tall slender glass) = 51.283mL

Short wide glass > tall slender glass

4 0
3 years ago
Need help please ? I don't understand
Oxana [17]
Shade in 3 boxes and 59 little cubes and there ya go!
3 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!!!!!!!!
Annette [7]
Oh no mate I’m not doing your entire homework for you lol. Just find a cylinder surface area calculator online and plug the values in.
8 0
2 years ago
Read 2 more answers
A parallelogram has a height of x cm. The length of its base is 4 cm greater than its height. A triangle has the same height as
LuckyWell [14K]

The value of x when the triangle and the parallelogram have the same area is 6 units

<h3>The dimensions</h3>

The dimension of the parallelogram is given as:

  • Height = x
  • Base = 4 + x

The dimension of the triangle is given as:

  • Height = x
  • Base = 20

<h3>Areas</h3>

The area of a shape is the amount of space it occupies

The area of the parallelogram is calculated as:

Area = x (4 + x)

The area of the triangle is calculated as:

Area = 0.5 \times 20 \times x

Area = 10x

Both areas are equal.

So, we have:

x(4 + x) = 10x

Divide both sides by x

4 + x = 10

Subtract 4 from both sides

x =6

Hence, the value of x is 6 units

Read more about areas at:

brainly.com/question/2126265

4 0
2 years ago
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