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kiruha [24]
3 years ago
14

Evaluate the expression using the distributive property (2 1/4) x (-8)

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
4 0

So you first have to change the first part into an improper fractions

So (9/4)*-8 Then you expand and you get (9*-8)/4

Then you get -72/4

The answer is -18

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Find the image of U'( -8 , 1) after a translation along < 2 , 0 > and a reflection in the x axis
Lana71 [14]

Given:

The point is U'(-8,1).

It is translated along <2,0> and reflected across the x-axis.

To find:

The image of U'.

Solution:

The given point is U'(-8,1).

It is translated along <2,0> . So, the rule of translation is:

(x,y)\to (x+2,y+0)

U'(-8,1)\to U_1(-8+2,1+0)

U'(-8,1)\to U_1(-6,1)

Then, it is reflected across the x-axis. So, the rule of reflection is:

(x,y)\to (x,-y)

U_1(-6,1)\to U''(-6,-1)

The image of U'( -8 , 1) is U''(-6,-1).

Therefore, the correct option is A.

5 0
3 years ago
Find the product mentally using distributive property 3 x 78 solve this problem :}
Rainbow [258]

Answer:

234

Step-by-step explanation:

3 x 78= 3 x 70 + 3 x 8

210 + 24

=234

5 0
3 years ago
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Solve the system of equations.<br><br> -6x+6y=6<br> -6x+3y=-12
Serhud [2]

Answer:

x=5 and y=6

Step-by-step explanation:

4 0
3 years ago
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Please help me so confused Solve. x^2 + 3x − 7 = 0 Enter your answers, as exact values, in the boxes. x = or x =
Rzqust [24]

Answer:

x = -1/2 ( 3±sqrt(37))

Step-by-step explanation:

x^2 + 3x − 7 = 0

Add 7 to each side

x^2 + 3x =7

Using complete the square

Taking the coefficient of x

3

Divide by 2

3/2

Square it

(3/2)^2 = 9/4

Add this to each side

x^2 + 3x+ 9/4 = 7+9/4

( x+ 3/2) ^2 = 28/4 + 9/4

( x+ 3/2) ^2 = 37/4

Take the square root of each side

x+3/2 = ±sqrt(37/4)

x+3/2 = ±sqrt(37) / sqrt(4)

x+ 3/2 = ±sqrt(37) / 2

Subtract 3/2 from each side

x = -3/2 ±sqrt(37) / 2

x = -1/2 ( 3±sqrt(37))

6 0
4 years ago
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An interior designer wants to install a circular stained-glass window on the triangular side wall of an attic bedroom. The windo
erica [24]

Answer:

B. The point of intersection of the triangle's three angle bisectors.

Step-by-step explanation:

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