3 years ago

??? Homework need answer

Mathematics

1 answer:

kolezko [41]3 years ago

3 0

Answer:

Step-by-step explanation:

i minus

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How do you solve f(x) = x2 + x - 20?

Darina [25.2K]

$\huge \bf༆ Answer ༄$

Let's solve ~

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \: {x}^{2} + x - 20$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \: {x}^{2} + 5x - 4x - 20$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:x(x + 5) - 4(x + 5)$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:(x + 5)(x - 4)$

It's factorized now ~ And if you want to find the zeros then equate the expression with 0.

And you will get ;

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:x = - 5 \: \: and \: \: 4$

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2 years ago

What percentage is 650 m to 4 km.

Nina [5.8K]

Answer: 16.25%

Step-by-step explanation:

Change
650m = 0.65 km

Convert into percentage 0.65/ 4 x 100 = 16.25

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2 years ago

What is an equation of the line, in point-slope form, that passes through the given point and has the given slope? point:(11, 3)

Galina-37 [17]

Y=4/11x-1

:c) :c) :c)
-Oliver

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3 years ago

The length of a rectangle is three times its width. if the area of the rectangle is 300 yd2 , find its perimeter.

Svetradugi [14.3K]

Let, width = x
Length = 3x

It is given that, 3x * x = 300
3x² = 300
x² = 300 / 3
x = √100
x = 10
& 3x = 3(10) = 30

Perimeter = 2(l + w)
P = 2(10 + 30)
P = 2(40) = 80

In short, Your Answer would be 80 Yards

Hope this helps!

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3 years ago

5/4 miness 5/8what does it equal

Ivan

Answer:
5/8
explanation:
5/4(2)=10/8-5/8

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3 years ago