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Trava [24]
3 years ago
15

Need help with this problem

Mathematics
2 answers:
netineya [11]3 years ago
8 0

Answer:


Step-by-step explanation:


alexandr1967 [171]3 years ago
4 0

Answer:

x = 10

Step-by-step explanation:

Since the triangles are similar the ratios of corresponding sides are equal

\frac{20}{20+8} = \frac{3x}{4x+2}, that is

\frac{20}{28} = \frac{3x}{4x+2} ( cross- multiply )

20(4x + 2) = 84x

80x + 40 = 84x ( subtract 80x from both sides )

40 = 4x ( divide both sides by 4 )

x = 10



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Help please. Apply the distributive property and simplify, if possible.<br><br> 0.08 (x +6,000)
WARRIOR [948]
By applying the distributive property:
0.08(x+6,000) ---> (0.08)x+(0.08)6,000

By simplifying:
(0.08)x+(0.08)6,000 ---> 0.08x+480

Your answer is 0.08x+480.
4 0
3 years ago
Simplify the expression x^2+x-2/8x^2+4x/3x^2+10x+8
irina [24]

Answer:

Step-by-step explanation:

x² + x  - 2 = x² - x +2x -2 = x(x - 1) + 2*(x-1)  = (x-1)(x+2)

8x² + 4x = 4x ( 2x + 1)

3x² + 10x + 8 = 3x² + 6x + 4x + 4*2  =3x  * (x + 2) + 4 * ( x + 2) = (x + 2)(3x + 4)

6 0
3 years ago
What is 5,729 + 2,729​
Kazeer [188]

Answer:

it equals 8458

Step-by-step explanation:

Caculator

7 0
3 years ago
What is the invers function of f(x)=(n+1)^3?
zimovet [89]

Answer:

f^{-1}(x)=\sqrt[3]{x}-1

Step-by-step explanation:

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Graphing both inverses, they will be symmetrical about the line y=x.

8 0
3 years ago
3) A local school district has 4512 students this year. The student population is declining by 2.5% per year. How many students
il63 [147K]

Answer:

Number of students(n1)= 4,402

Step-by-step explanation:

Giving the following information:

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<u>To calculate the number of students next year, we need to use the following formula:</u>

Number of students (n+x)= number of students (n0) / [(1+declining rate)^(n+x)

x= number of years

Number of students(n1)= 4,512/1.025

Number of students(n1)= 4,402

5 0
3 years ago
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