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seropon [69]
3 years ago
12

Omg someone PLEASE help

Mathematics
1 answer:
zheka24 [161]3 years ago
3 0
1. we can add them to eliminate y's

3x-4y=-16
<u>-x+4y=24 +</u>
2x+0y=8

2x=8
divide by 2
x=4

sub back
-x+4y=24
-4+4y=24
add 4 both sides
4y=28
divide by 4
y=7

(x,y)
(4,7)




3.
add them to eliminate y's

-5x+3y=12
<u>-2x-3y=-33 +</u>
-7x+0y=-21

-7x=-21
divide both sides by -7
x=3

sub back
-2x-3y=-33
-6-3y=-33
add 6 to both sides
-3y=-27
divide both sides by -3
y=9

(x,y)
(3,9)




1. (4,7)
3. (3,9)
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Answer:

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$11.60 for $5

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$11.60 divided by $5= $2.32

2. 1 gemstone= $2.32

Your anwser should be 1 over $2.32 or $2.32 over 1 depending on how you want it.

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PLEASE HELP WITH EXPLANATION <br><br> F(x) = 3 - x; g(x) = -2x <br><br> find f(g(2))
ioda

Given,

f(x) = 3 - x

and

g(x) = -2x

Now,

g(2) =  - 2(2) =  - 4

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8 0
2 years ago
Find the area of each figure. round to the hundredths place when necessary
notsponge [240]

Answer:

115.48m^{2}

Step-by-step explanation:

This shape can be split into two distinct shapes

Two halves of a semi circle, and a rectangle in between

Circle:

Putting both halves of the semi circle together will give you a full circle. The diameter of the circle is given (7m).

The area of a circle is A = π r^{2}

The radius, r, is half of the diameter, so 7 / 2 = 3.5m

A = π r^{2}

A = π * 3.5^{2}

A = 38.38m^{2}

Rectangle:

The area of a rectangle is A = h b

The height, h, is known at 7m

The base, b, can be found by removing the length from the dot to the end of the semi circles. This length is the radius of the semi circles, 3.5m

Removing the radius from the total length given

18 - 3.5 - 3.5 = 11m

The base is 11m

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A = 7 * 11 = 77m^{2}

Total Area = Circle area + Rectangle area

Total Area = 38.38 + 77 = 115.48m^{2}

6 0
3 years ago
Which line corresponds to y=2x+5? <br><br> *please see picture*<br> *serious answers only*
Ivahew [28]

Answer:

B

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
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