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ElenaW [278]
3 years ago
8

11.What is the solution of the inequality below? |2x + 7| > 9

Mathematics
1 answer:
Gennadij [26K]3 years ago
3 0

Answer: X=8,-1

Hope it help:)

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Please help on question 17 with step by step instructions <br> Thanks in advance xx
shutvik [7]
Let x = Initial Price

If we increase x by 5%, we are adding 0.05x

Therefore, the new price = x + 0.05x = 1.05x

If the ticket has increased by £2.30, £2.30 is 5% of the initial price, or 0.05x

0.05x = 2.30

x = 2.30/0.05

x = 46

Therefore, the price of the ticket before the increase was £46

You can also check this backwards by doing 46*0.05 = 2.30
6 0
3 years ago
Plzzzzzzzzzz helpppppppp
Minchanka [31]

Answer:

i'd say do it with division what equals 31? im not going to say the staright up answer

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7 0
2 years ago
Which of the following slopes of a line passes through points (2, 3) and (4,7) ?
serg [7]

Answer:

2

Step-by-step explanation:

slope = (difference in y)/(difference in x)

slope = (7 - 3)/(4 - 2)

slope = 4/2 = 2

Answer: 2

8 0
2 years ago
What are the coordinates of the x-intercepts of the parabola y = x² - 8x + 15?
tamaranim1 [39]

Answer:

(3, 0) and (5, 0)

Step-by-step explanation:

we have

y=x^{2}-8x+15

we know that

The x-intercepts are the values of x when the value of y is equal to zero

so

For y=0

x^{2}-8x+15=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}-8x+15=0  

so

a=1\\b=-8\\c=15

substitute in the formula

x=\frac{-(-8)\pm\sqrt{-8^{2}-4(1)(15)}} {2(1)}

x=\frac{8\pm\sqrt{4}} {2}

x=\frac{8\pm2} {2}

x=\frac{8+2} {2}=5

x=\frac{8-2} {2}=3

so

x=3, x=5

therefore

The x-intercepts are (3,0) and (5,0)

4 0
3 years ago
Please help me with this. I give brainliest and give ratings. Don't answer just to take my points or your getting reported
lesantik [10]

Answer:

by 3/4ftmrs torrer is shorter than her husband

6 1/4-5 1/2=25/4-11/2=3/4ft

4 0
3 years ago
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