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igor_vitrenko [27]
4 years ago
15

What is the value of x?

Mathematics
1 answer:
dangina [55]4 years ago
3 0

Answer:

x = 21.-

Step-by-step explanation:

The 2 figures are similar so

x / 27 = 35/45

x / 27 = 7 / 9

x = 7*27/9

x = 3 * 3 = 21.

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AnnyKZ [126]
Solve 180=10x+10 to find your answer (:
8 0
3 years ago
Simplify (write without absolute value sign): |x+3|, if x>2
Bas_tet [7]

Answer:

5

Step-by-step explanation:

Substitute 2 in for x

|2+3| = 5

This would take the absolute value of the answer, or in other words once you solve the equation it will remove any negatives to return a positive number. I took the test and I have links to prove it.

3 0
3 years ago
The graph of a quadratic polynomial intersects x-axis at the points (-4, 0) and (5, 0). Find
Setler79 [48]

Answer:

Quadratic polynomial is x^2 - x - 20

3 0
2 years ago
1 point
Ber [7]
15
Explanation:
you just divide 90 by 6
6 0
3 years ago
HELP HELP HELP
mojhsa [17]

Answer:

2998 ; 17%

Step-by-step explanation:

Given the function:

t(c)=-3970.9(ln c)

c = % of carbon remaining ; t = time

1.) c = 47% = 47/100 = 0.47

t(0.47) = - 3970.9(In 0.47)

t = - 3970.9 * −0.755022

t = 2998.119

t = 2998

B.)

t = 7000

t(c)=-3970.9(ln c)

7000 = - 3970.9(In c)

7000 / - 3970.9 = In c

−1.762824 = In c

c = exp(−1.762824)

c = 0.1715596

c = 0.1715596 * 100%

c = 17.156% ; c = 17%

8 0
3 years ago
Read 2 more answers
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