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OlgaM077 [116]
2 years ago
14

Find the answer to: (k+3)-(3k-5)=

Mathematics
1 answer:
Degger [83]2 years ago
4 0

Answer:

-2k + 8

Step-by-step explanation:

Distribute the Negative Sign:

=k + 3 + −1(3k − 5)

=k + 3 + −1(3k) + (−1)(−5)

=k + 3 + −3k + 5

Combine Like Terms:

=k + 3 + −3k + 5

=(k + −3k) + (3 + 5)

=−2k + 8

Hope this helps!

brainliest?

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Answer:

Commutative Property

Step-by-step explanation:

Commutative property is the property where if you change the order of the operands, it does not change the result.

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3 years ago
Find the area of figure 1.<br><br> a -12 units2<br> b- 14 units2<br> c- 8 units2<br> d- 10 units2
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D

Step-by-step explanation:

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The temperature at any random location in a kiln used in the manufacture of bricks is normally distributed with a mean of 1000 a
NeX [460]

Answer:

b. 2.28%.

Step-by-step explanation:

Mean temperatue (μ) = 1000°F

Standard Deviation (σ) = 50 °F

For any temperature value, X, the z-score is given by:

z=\frac{X-\mu}{\sigma}

For X= 900°F

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A z-score of -2.0 corresponds to the 2.28-th percentile of a normal distribution. Therefore, the probability that X<900 is:

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7 0
3 years ago
Solve the equation: 7(x + 8) = 49​
eduard

Answer:

-1

Step-by-step explanation:

1.)Reorder the terms:

7(8 + x) = 49

(8 * 7 + x * 7) = 49

(56 + 7x) = 49

2.)Solving

56 + 7x = 49

3.)Solving for variable 'x'.

4.)Move all terms containing x to the left, all other terms to the right.

5.)Add '-56' to each side of the equation.

56 + -56 + 7x = 49 + -56

6.)Combine like terms: 56 + -56 = 0

0 + 7x = 49 + -56

7x = 49 + -56

7.)Combine like terms: 49 + -56 = -7

7x = -7

8.)Divide each side by '7'.

x = -1

9.)Simplifying

x = -1

Hope this helps

plz like and brainy

4 0
3 years ago
The lengths of the sides of a triangle are x,x+1 and 7 centimeters and the perimeter of the triangle is 56 centimeters. The equa
____ [38]

Answer:

the longest side is 25

Step-by-step explanation:

the equation would be x+ x+1 + 7  for the 3 sides of the triangle

x + (x+1) + 7=56

combine like terms

2x+8 = 56

subtract 8 from each side

2x = 48

divide by 2

x = 24

the sides are

x=24

x+1 = 25

7

the longest side is 25

7 0
3 years ago
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