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Gwar [14]
3 years ago
13

Use substitution to solve the system.

Mathematics
1 answer:
Andrews [41]3 years ago
3 0

Answer:

its ( 3,5) Equation form is: x  =  3  ,  y  =  5

Step-by-step explanation:

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Am I right about this or..?
Arisa [49]

Answer:

Correct, as 4 is the only number repeating twice

4 0
3 years ago
Which expression is equivalent to sec^2x − 1? a. cot2x b. tan2x c. csc2x d. cos2x
Nesterboy [21]
Sec^2 x - 1 = tan^2x

Proof:
Sec^2x = 1+ tan^2x

1/cos^2x = 1 + sin^2x/cos^2x

<span>1/cos^2x - sin^2x/cos^2x = 1
</span>Using common denominator:
(1-sin^2x)/cos^2x = 1
sin^2x + cos^2 x = 1
cos^2 x = 1 - sin^2x
Substituting : 
cos^2x/<span>cos^2x = 1
</span>1 = 1
Left hand side = right hand side 
4 0
3 years ago
Read 2 more answers
What is the coefficient of the term 6x/7
AysviL [449]
A. 6x/7 = (6/7)x
These are equal
6 0
4 years ago
Can someone help me i don't understand how to get the answer:/ will mark brainliest..!
yulyashka [42]

Answer:

So first you know automatically that either side of the line is 180 degrees. So 180-155 would get you 25 degrees so you now know that y=5. we know that it is also a right angle therefore you divide 65 (x-90) by 13 and you get that x is also equal to five

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A spherical ball with a volume of 2,304π in.3 is packaged in a box that is in the shape of a cube. The edge length of the box is
Nutka1998 [239]

Answer:

Therefore the volume of the box is 13824 in³

Step-by-step explanation:

Given:

A spherical ball with is packaged in a box that is in the shape of a cube.

Volume of ball = 2304π in³.

Let 'r' be the radius of sphere

To Find:

Volume of Cube = ?

Solution:

Volume of sphere is given by

\textrm{Volume of sphere}=\dfrac{4}{3}\pi r^{3}

Substituting the values we get

2304\pi=\dfrac{4}{3}\pi r^{3}\\\\\therefore r^{3}=1728\\\\Cube\ Rooting\\\\r=12\ in

Now we know that diameter is given by

diameter=2\times r=2\times 12=24\ in

it is given that,

The edge length of the box is equal to the diameter of the ball.

Therefore the length of cube = 24 in

Now the volume of the cube is given by

\textrm{Volume of cube}=(edge)^{3}

substituting the values we get

\textrm{Volume of cube}=(24)^{3}=13824\ in^{3}

Therefore the volume of the box is 13824 in³

6 0
4 years ago
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