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Lyrx [107]
3 years ago
11

8- 5 (a + b) + 3 (a - 2b)

Mathematics
1 answer:
Alexeev081 [22]3 years ago
7 0

Answer: 8-2a-11b

.....

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Find the value of the variable plz help
Naddika [18.5K]

Answer:

Step-by-step explanation:

Vertically opposite angles are equal.

8y + 36 = 14y -24                Subtract 36 to both sides

8y = 14y - 24 - 36               Combine

8y = 14y - 60                       Subtract 14y from both sides

8y - 14y = - 60

-6y = -60                             Divide by - 6

-6y/-6 = -60/-6

y = 10

===========================

x +48 = 64                        Subtract 48 from both sides

x +48 - 48 = 64-16

x = 16

                   

7 0
2 years ago
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Which point lies on a circle with a radius of 5 units and center at P(6, 1)?
guapka [62]

Answer:

B.

R (2,4)

soln

center(h,k)=(6,1)

radius (r)=5units

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eqn of circle is (x-6)^2+(y-1)^2=5^2

2 2

or, 25=x +y -12x-2y+36+1 now , only the given point (6,1)satisfies the eqn so this point lies on circle

3 0
3 years ago
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If (7^0)^x = 1, what are the possible values of x? Explain your answer.
kobusy [5.1K]

Hello,

What do you think of 7^0 ?

It is 1

and what do you think of 1^x  ?

it is 1

and the solution of 1 = 1 ?

There is an infinity of solutions as 1 = 1 is always true.

thanks

6 0
3 years ago
A scale drawing of a rectangle painting is 12 inches long and 8 inches tall. The actual painting is 12 feet tall. What is the sc
love history [14]

Answer:

x = 18

Step-by-step explanation:

\frac{8}{12}  = \frac{12}{x}

  • then cross-multiply

8x = 12 * 12

8x = 144

\frac{8x}{8} = \frac{144}{8}

x = 18

5 0
3 years ago
Solve the system by substitution.<br> -x-y-z=-8<br> -4x+4y+5z=7<br> 2x+2z=4
alexandr402 [8]
1. x=−y+8−z 2.x=−​7−4y−5z (everything over 4) ​​ 3.x=2−z 1.y=-x+8-z 1.z=-x+4-y 2.y=7+4x-5x (everything over 4) 2.z=7+4x-4y (everything over 5) 3.z=2-x
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3 years ago
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