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3 years ago

Help me pleaseeeeeeeee

Mathematics

1 answer:

Katarina [22]3 years ago

3 0

Answer:

x = 69

Step-by-step explanation:

The sum of the angles round a point is 360°

Subtract the sum of the 2 given angles from 360 for x

x = 360 - (168 + 123) = 360 - 291 = 69

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Does this graph show a function?explain how you know.

DiKsa [7]

The answer is B! It passes the vertical line test

5 0

3 years ago

Let the function f be defined as f(x)= 5x^2 - 7(4x+3). What is the value of f(3)

Katen [24]

Answer:

f(x) = -60 is your answer

Step-by-step explanation:

Plug in 3 for x

f(x) = 5x² - 7(4x + 3)

f(x) = 5(3²) - 7(4(3) + 3)

Follow PEMDAS. First, solve the parenthesis

3² = 9

4(3) + 3 = 12 + 3 = 15

f(x) = 5(9) - 7(15)

Multiply

f(x) = 45 - 105

Simplify. Subtract

f(x) = 45 - 105

f(x) = -60

f(x) = -60 is your answer

4 0

3 years ago

Rewrite the fraction in the sentence below as a percentage.

klasskru [66]

Answer:

42%

Step-by-step explanation:

To find the percentage of a fraction, you divide the numerator by the denominator and multiply by 100:

$\frac{21}{50}=21/50=0.42*100=42percent$

4 0

3 years ago

Log(x+4)=8 <br><br> Please help I don’t understand it I will give brainliest

irakobra [83]

The answer should be 2

4 0

3 years ago

PLESE HELPPP!!!!!!!!!!!!!!!!

zzz [600]

Answer:

B. $\frac{6}{2x^{2} - 5x}$

Step-by-step explanation:

The product of the ratioal expressions given above can be found as follows:

$= \frac{2}{x} * \frac{3}{2x - 5}$

Multiply the denominators together, and the numerators together, separately to get a single expression

$\frac{2(3)}{x(2x - 5)}$

$= \frac{6}{x(2x) - x(5)}$

$= \frac{6}{2x^{2} - 5x}$

The product of the expression $\ = \frac{2}{x}*\frac{3}{2x - 5}$ = $\frac{6}{2x^{2} - 5x}$

The answer is B.

8 0

3 years ago