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katovenus [111]
3 years ago
8

7.8 14. Give the inequality 7.9 15. Make d the subject of the formula: A cd

Mathematics
1 answer:
STALIN [3.7K]3 years ago
4 0
X is greater than or equal to -2 and x is less than two
D=a/c
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Simplify: (x+7)(x-4)
SVETLANKA909090 [29]

Answer:

x² + 3x - 28

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor

(x + 7)(x - 4)

= x(x - 4) + 7(x - 4) ← distribute both parenthesis

= x² - 4x + 7x - 28 ← collect like terms

= x² + 3x - 28


6 0
3 years ago
A jacket is on sale for 10% off including the discount and 7% tax the sales price of the jacket is $115.56 what is the price of
aev [14]

Answer:

120.00

Step-by-step explanation:

Let x be the original price

The price is 10% off, or we pay 90% of the original price

.9 x

Then we have to pay 7% sales tax

.9x * 7%

.9x * .07

.063x is the tax

Add this to the .9x we have to pay for the jacket

.9x + .063x = .963x

This is the cost of the jacket

.963x = 115.56

Divide each side by.963

.963x/.963 = 115.56/.963

x =120.00

The cost of the jacket before discount and tax is 120.00

5 0
3 years ago
Look at image.... Given that s=5 and t = 6, which statement proves the quadrilateral below to be a parallelogram?
SOVA2 [1]

Answer: C

Step-by-step explanation:

4 0
3 years ago
Pls help i give u brainliest​
ch4aika [34]

Answer:

Answer≈3219.57

A=πr(r+h2+r2)

In terms of pi

1024.82096\pi

8 0
3 years ago
Read 2 more answers
Over the weekend, trigg and Craig drove to lake of the pines to go fishing. Now they're preparing to go home. Trigg needs gas fo
larisa86 [58]
Added gallons:  23.50÷1.25=18.8
All of the gases: 5+18.8=23.8
now the total distance: 23.8*27=642.6≈643 miles.

I hope this helps!
7 0
3 years ago
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