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Mila [183]
3 years ago
8

I don't know how to solve this:

Mathematics
1 answer:
kvasek [131]3 years ago
4 0

Answer:

18, 72

Step-by-step explanation:

Two angles are complementary if they sum up to 90°. Call them x, (90-x). From the second part,

3 x = 90-x+18 \\4x = 72 \\x= 18

The second angle is 90-18 = 72

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What is the solution to y=-x+3 and y=4x-2
DIA [1.3K]

Answer: x=1

              y=2

Step-by-step explanation:

y=-x+3

y=4x-2

-----------

    y=y

-x+3=4x-2

3+2=4x+x

5=5x

x=1

y=-1+3

y=2

3 0
3 years ago
What is y=1/2x+4 in standard form?
zhuklara [117]
<h3>Answer:  x-2y = -8</h3>

===========================================

Explanation:

Multiply both sides by 2 to clear out the fraction

y = (1/2)x+4

2y = 2[ (1/2)x + 4 ]

2y = 2*(1/2)x + 2*4

2y = x + 8

Then move the x term over to the left side

2y = x+8

2y-x = 8

-x+2y = 8

Optionally we can multiply both sides by -1

-x+2y = 8

-1*(-x+2y) = -1*8

x-2y = -8

This is in standard form Ax+By = C with A = 1, B = -2, C = -8

The reason why I multiplied both sides by -1 was to make A > 0 which is what some textbooks use as convention. Of course -x+2y = 8 is equally valid too.

8 0
3 years ago
. If $240 is invested at an interest rate of 9% per year and is compounded monthly, how much will the investment be worth in 14
alukav5142 [94]

A(14)=240(1+0.09)^14-1

A(14)=240(1.09)^13

A(14)=240(3.065)

A(14)=735.79

Make sure the calculations m

5 0
3 years ago
13. Find the length of the diagonal of the rectangular prism.
vova2212 [387]

Answer:

:0 no one knows

Step-by-step explanation:

5 0
3 years ago
What is the value of 8 plus (27 divided by 9) power of two
saw5 [17]

Answer:

8+ (27/9)2 = 17

4 0
3 years ago
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