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kozerog [31]
3 years ago
14

What is 4k-14+3k=21​

Mathematics
2 answers:
BARSIC [14]3 years ago
5 0

So here. I don't know how to explain so-

djyliett [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Add combine like terms which are 4k and 3k which =7k-14=21 then add 14 on both sides to its self and to the 21 which = 7k=35 then divide the 7 on both sides which then equals k=5

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What is the width of a box when the length is x+2, the height is x+8, and the volume is x^3+9x^2+6x-16?
Nostrana [21]

(x+2)(x+8) = x^2 +10x +16

(x^2 + 10x + 16)(x-1) = x^3+9x^2+6x-16, so the other dimension is x-1

8 0
3 years ago
Read 2 more answers
the density of a certain material is such that weighs 6900 grams for every 4.5 quarts of volume express this density in pounds p
dlinn [17]

Answer:

d=101.4\ \text{pounds}/\text{feet}^3

Step-by-step explanation:

Given that,

Mass of material, m = 6900 grams

Volume of the material, V = 4.5 quarts

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We know that,

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Also, 1 cubic foot = 29.92 quarts

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Density = mass/volume

Or

d=\dfrac{15.21\ \text{pounds}}{0.15\ \text{feet}^3}\\\\d=101.4\ \text{pounds}/\text{feet}^3

Hence, the density of the material is 101.4\ \text{pounds}/\text{feet}^3

3 0
3 years ago
5x 2(x - 3) = -2(x - 1)
natali 33 [55]
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4 0
3 years ago
X| 25 | 35 | 45 | 55 |
Yanka [14]
A graphing calculator can do a linear regression on these points very easily. The y-intercept is 107.

_____
If you want to do this by hand, you can use the 2-point form of the equation for a line, then evaluate for x=0.
.. y = (100 -102)/(35 -25)*(x -25) +102
.. y =-2/10*(0 -25) +102
.. y = 107

6 0
3 years ago
One skeleton in a museum has 189 bones.another skeleton has 232 bones. How many bones are in the two skeleton?
gayaneshka [121]

421 is the correct answer.

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3 years ago
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