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2 years ago

15

What is 13/20 times 60/x

1 answer:

Oksi-84 [34.3K]2 years ago

4 0

13\20 x 60\x
cross multiply
13x=1200
x=92.3

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(5.2x + 36.4x + 52)/ (2.6x +13)

g100num [7]

Combine like terms in the first set and get
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I got 16x + 4

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2 years ago

*How can I find the sum of -5 + 12 using a vertical number line? *

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3 years ago

The axis of symmetry for the graph of the function is f(x) = x2 + bx + 10 is x = 6. What is the value of b?

joja [24]

Answer:

$b=-12$

Step-by-step explanation:

we have

$f(x)=x^{2}+bx+10$

we know that

The equation of a vertical parabola into vertex form is equal to

$y=a(x-h)^{2} +k$

where

(h,k) is the vertex of the parabola

and the axis of symmetry is equal to $x=h$

In this problem we have the axis of symmetry $x=6$

so

the x-coordinate of the vertex is equal to $6$

therefore

For $x=6+1=7$ -----> one unit to the right of the vertex

Find the value of $f(7)$

$f(7)=7^{2}+b(7)+10$

$f(7)=59+7b$

For $x=6-1=5$ -----> one unit to the left of the vertex

Find the value of $f(5)$

$f(5)=5^{2}+b(5)+10$

$f(5)=35+5b$

Remember that

$f(5)=f(7)$ ------> the x-coordinates are at the same distance from the axis of symmetry

so

$59+7b=35+5b$ ------> solve for b

$7b-5b=35-59$

$2b=-24$

$b=-12$

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Shtirlitz [24]

It would be a trapezoid because parallelograms have the top and bottom usually the same number.

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2 years ago

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velikii [3]

Answer:

$\frac{13}{8}$

Step-by-step explanation:

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2 years ago

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