2 years ago

If 8x=7, what is the value of 5 (x+1/2)

Mathematics

1 answer:

beks73 [17]2 years ago

5 0

X=7/8
So replace X with ^

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Find f(3) if<br> f(x)=x^3 + 2x^2-x-1

Wittaler [7]

Answer:

$\underline{ \boxed{f(3) = 41}}$

Step-by-step explanation:

$if \to \: f(x)=x^3 + 2x^2-x-1 \\ then \: f(3) = {3}^{3} + 2( {3)}^{2} - 3 - 1 \\ f(3) = 27 + 18 - 4 \\ f(3) = 41$

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2 years ago

If m∠c=11x+85/3 and x=13 then what type of angle is c please help me with this

GuDViN [60]

Answer:

Acute angle

Step-by-step explanation:

Given that m<C = $\frac{11x + 85}{3}$ , to find out the type of angle angle C is, evaluate the expression given by substituting x = 13, in the expression.

m<C = $\frac{11x + 85}{3}$

m<C = $\frac{11(13) + 85}{3}$

m<C = $\frac{228}{3}$

m<C = 76°

Acute angles are less than 90°.

m<C is less than 90°, therefore it is an acute angle.

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2 years ago

Formula of quadratic function and their graph

Mama L [17]

Answer:

-b +/- √b^2-4ac

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2 years ago

Solve the equation <br>-5x+x over 2 = 9

Alekssandra [29.7K]

Ok soo

-5x+x/2=9

- 4x/2=9

-(2^2-1 *x)=9

2x/2=- 9/2

x=- 9/2

x= -4 1/2

5 0

2 years ago

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I NEED HELP ASAP!!! I'LL GIVE BRAINLIEST TO THE CORRECT ANSWER!!!

icang [17]

Answer:

v=18

u=4

Step-by-step explanation:

v/3=6

v=18

2u+2=5u-10

3u=12

u=4

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3 years ago

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