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3 years ago

WILL GIVE BRAINLY PLEASE HELPPPPP

Mathematics

2 answers:

erica [24]3 years ago

5 0

Answer:

Step-by-step explanation:

4(8-x)=8

32-4x=8

-4x=-24

x=6

Ilya [14]3 years ago

5 0

The answer is C, 6.

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If Carl hangs a picture using 3/8 yard of a wire that is 1 1/8 yards long how much wire will Carl have left

nasty-shy [4]

Answer:

1 yard of wire or 8/8 yard of wire

Step-by-step explanation:

To figure out how much wire he has left you need to take 3 from 11 which equals 8. You do not change the 8 that is behind the 3 or 11. This means you have 8/8 or 1 yard of wire.

8 0

3 years ago

Anyone knows the answer?

never [62]

The x-coord. of the vertex is halfway between the given zeros. Here, it'd be halfway between x=3 and x=9, which comes out to x = 6 (answer).

4 0

3 years ago

1. Triangle XYZ has vertices at X (2, -1), Y (-4, -1), and Z (2, 2). The triangle will be dilated by a scale factor of 4. What w

sweet-ann [11.9K]

Answer:

Can’t right. Now

Step-by-step explanation:

8 0

3 years ago

What is the answer to the system of equations problem 3x=2y+10 9y=3x-7

Gemiola [76]

Solving:

$\left \{ {{3x = 2y + 10} \atop {9y = 3x-7}} \right.$
Organize by putting the unknowns left and right the numbers without letter, changing the signal when changing sides.
 $\left \{ {{3x-2y=10\:(I)} \atop {-3x+9y=-7\:(II)}} \right.$
Eliminate opposites (+ 3x and -3x)
 $\left \{ {{\diagup\!\!\!\!3x-2y=10} \atop {-\diagup\!\!\!\!3x+9y=-7}} \right.$
$\left \{ {{-2y=10} \atop {9y=-7}} \right.$
----------------------------
$7y = 3$
$\boxed{y = \frac{3}{7} }$

Now substitute the found value "y" in the first equation:
 $3x-2y=10\:(I)$
$3x-2* \frac{3}{7} =10$
$3x- \frac{6}{7} = 10$
$\frac{21x}{\diagup\!\!\!\!7} - \frac{6}{\diagup\!\!\!\!7} = \frac{70}{\diagup\!\!\!\!7}$
$21x - 6 = 70$
$21x = 70 + 6$
$21x = 76$
$\boxed{x = \frac{76}{21} }$

Answer:
$(x,y) = ( \frac{76}{21} , \frac{3}{7} )\end{array}}\qquad\quad\checkmark$


Taking the truth proof

$3x - 2y = 10\:(I)$
$3* \frac{76}{21} - 2* \frac{3}{7} = 10$
$\frac{228}{21} - \frac{6}{7} = 10$
$\frac{1596-126}{147} = 10$
$\frac{1470}{147} = 10$
$10 = 10\:(TRUE)$

8 0

3 years ago

What are the coordinates of the point (2, −3) after a counterclockwise rotation of 90° about the origin?

Katen [24]

Answer:

(2,-3) changes to (3,2)

A is correct.

Step-by-step explanation:

Given: The point (2, −3) after a counterclockwise rotation of 90° about the origin.

$R_{90\circ}(x,y)\rightarrow (-y,x)$