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Ratling [72]
3 years ago
15

The area of a rectangle is x² + 3x – 28 and the width is x + 7. What is the length of the

Mathematics
1 answer:
g100num [7]3 years ago
6 0

Answer:

X+4

Step-by-step explanation:

length times width = area

(X+7)(X-4) = x^2 +3x-28

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21) Jim and his uncle went to the circus. Together they spent
SCORPION-xisa [38]
3/30 or 1/10 or $3
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3 0
3 years ago
Help Me With This Please
Cerrena [4.2K]
8. complementary angles = 90°
3x+3+10x-4 = 90
13x-1 = 90
13x = 91
so x = 91/13= 7
then K = 3(7)+3 = 24°
so L = 10(7)-4 = 70-4 = 66°

9. P is three less than twice of Q
so P = 2Q-3
supplementary angles = 180°

P+Q = 180
(2Q-3)+Q = 180
3Q-3 = 180
3Q = 183
so Q = 183/3 = 61°
then P= 2(61)-3 = 122-3 = 119°

10. B is two more than three times of C so B= 3C+2
complementary angles = 90°

B+C= 90
(3C+2)+C=90
4C+2=90
4C= 88
so C= 22°
then B = 3(22)+2= 66+2 = 68°
8 0
4 years ago
What is the inverse of the function f(x)= 2x+1​
Sergeu [11.5K]

In order to invert a function, switch y and x in the definition, and solve for y again:

y=2x+1 \mapsto x=2y+1

Solving for y, we have

x=2y+1\iff x-1=2y \iff y=\dfrac{x-1}{2}

8 0
4 years ago
Read 2 more answers
Select the correct answer.
Ilia_Sergeevich [38]

Answer:

2.80 years

Step-by-step explanation:

beacause it is simple that it will take option B . You

don't have to worry .

7 0
3 years ago
The variable Z is inversely proportional to X. When X is 6, Z has the value 2. What is the value of z . When x = 13
Simora [160]

Z= k/x

when x is 6, Z= 2

2=k/6

k=2*6

k=12

Z=12/X

when x = 13

Z=12/13

Z=0.923

6 0
3 years ago
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