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Butoxors [25]
3 years ago
8

What is the value of x in the equation 3x-4y=65 when y =4

Mathematics
1 answer:
salantis [7]3 years ago
3 0
3 x - 4 y = 65

Refine :

3 x - 4 * 4 =  65

3 x - 16 = 65

Add 16 to both sides :

3 x - 16 + 16 = 65 + 16

3 x = 81

Divide both sides by 3 :

3 x / 3  = 81 / 3

x = 81 / 3

x = 27

hope this helps!

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Korvikt [17]

Answer: \\ Volume \:  of \:  the \:  box:V = lwh \\ \Rightarrow h =  \frac{V}{lw}  =  \frac{144}{8 \times 1.5}  =  \frac{144}{12}  = 12 \\ \Rightarrow The  \: box's  \: height:12 \:  inches

5 0
3 years ago
Determine the value of x
Tomtit [17]

Answer:

the answer will be Root 2

Step-by-step explanation:

x^2 = 1^2 + 1^2

We take the unmentioned side as 1 because it is an isosceles triangle and thus 2 of the sides will have the same measure

x^2 = 1 + 1

x^2 = 2

taking square root on both the sides

x = root of 2

3 0
3 years ago
HURRY QUICK!!
antiseptic1488 [7]

After plotting all the three points, we get the parabolic equation in the form is 2(x - 1)²-34.

<h3>What is parabola?</h3>

Any point on a parabola, which has the shape of a U, is situated at an equal distance from the focus, a fixed point, and the directrix, a fixed line.

General equation of the quadratic equation,

Y = ax² + bx +c

Given points,

(-2, 0),

(-1, -10),

(4, 0).

Putting the points in the general equation,

Putting (-2, 0), we get

0 = 4a - 2b + c

Putting (-1, -10), we get

-10 = a - b +c

Putting (4, 0), we get

0 = 16a + 4b +c

Solving all equations we get,

a = 2 , b = -4 , c = -16

After putting the values,

Y = 2x²- 4x- 16

2(x² - 2x - 8)

2(x²- 2x + 1 - 1 - 16)

=2(x - 1)²-34

Hence we get the required equation in the parabolic form.

To know more about parabola, visit :

brainly.com/question/21685473

#SPJ1

5 0
1 year ago
Solve the equation.<br> C3 = 216
Anna [14]

Step-by-step explanation:

C= 72..............

C3=216

C=216

3

C = 72

Thanks

7 0
2 years ago
Read 2 more answers
Does 5^9 x 6^7= 30^16 ?
Gemiola [76]

Yes. When solving a problem like this, multiply the base numbers normally, and add the exponents together.

If you need more help, comment below and I'd be happy to assist.

5 0
3 years ago
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