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AnnZ [28]
3 years ago
8

7 (x + 3) - 3(4x + 9) = 14

Mathematics
2 answers:
Paul [167]3 years ago
5 0

Answer:

-4

Step-by-step explanation:

vladimir1956 [14]3 years ago
5 0

Answer:

-4

Step-by-step explanation:

Distribute the 7 and -3 inside the parentheses

7x + 3 - 12x -2 7

Combine like terms

-5x - 6 = 14

Isolate x by adding 6 to both sides

-5x = 20

Divide by -5

x = -4

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If one (1) tablespoon equals three (3) teaspoons, how many tablespoons are in 13 teaspoons?
Fittoniya [83]
D. 4 1/3 tablespoons
4 0
3 years ago
How do i find angle measurements in an isosceles triangle??
Sholpan [36]
In an isosceles triangles the sides that are congruent form two congruent angles...you should be given one of those angle measures or the other one...if you are given one of the angle measure formed by the congruent side you know the one opposite it is the same and you know all the measures of angles in a triangle = 180 so you should be able to find them all
3 0
3 years ago
What is the value of x in the equation 3(4x-1)-3x=5-(x-8)?
Setler [38]
12x-3-3x=5-(x-8)
9x-3=5-(x-8)
9x-3=5-x+ 8
9x-3=13-x
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X= 8/5
4 0
3 years ago
The standard form of the equation of a parabola is y= x2 - 8x + 29.
fomenos

Answer:

A

Step-by-step explanation:

Put brackets around the first two tems.

y = (x^2 - 8x) + 29

Take 1/2 coefficient of the linear term -8. Square that result. Add it inside the brackets.

1/2 (- 8) = - 4

(- 4)^2 = 16

y = (x^2 - 8x + 16) + 29

Subtract 16 outside the brackets.

y = (x^2 - 8x + 16) + 29 - 16  

Do the subtraction

y = (x^2 - 8x + 16) + 13

Represent what is inside the brackets as a square.

y = ( x - 4)^2 + 13

The answer is A

7 0
3 years ago
When ABC was dialed by a scale factor of 2, centered at the origin, the result was its image A'B'C' shown on the coordinates pla
sweet-ann [11.9K]

Answer:

Step-by-step explanation:

In dilation, the image and the original are similar, in that they are the same shape but not necessarily the same size. They are not congruent because that requires them to be the same shape and the same size, which they are not (scale factor is 2)

vertices of ABC are A(-2,2), B(-2,3), and C(1,2)

If we multiply by 2 from original to image,

then from image to original we divide by 2

4 0
3 years ago
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