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yarga [219]
3 years ago
12

Is (1, 1) a solution to this system of equations? x + 18y = 12 11x + 9y = 20​

Mathematics
1 answer:
V125BC [204]3 years ago
6 0

Answer:

no

Step-by-step explanation:

1 + 18 = 12 which is wrong

11 + 9 = 20 but the other one was wrong so it doesnt work for both

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Will mark Brainliest!
Anettt [7]

Answer:a=2.1 :)

Step-by-step explanation:a+(-1.6)=-3.7

+1.6 +1.6

a=-2.1

5 0
3 years ago
Lines AB and CD are parallel. Find the measures of the three angles in triangle ABF.
NeX [460]

Answer:

42 Degrees

Step-by-step explanation:

Angle ABF is parallel to the angle DCF

7 0
2 years ago
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In the diagram below, triangle abc ~ triangle dec . What is the value of x? A. 28 b. 24 c. 22 d. 26
Lesechka [4]

Answer:

Option A.

Step-by-step explanation:

From the figure attached,

Given : ΔABC ~ ΔDEC

By the property of similarity,

"Corresponding sides of the similar triangles are proportional"

\frac{\text{AB}}{ED}=\frac{BC}{EC}=\frac{AC}{DC}

Since, \frac{\text{AB}}{ED}=\frac{AC}{DC}

\frac{42}{6}=\frac{x}{(32-x)}

6x = 42(32 - x)

6x = 1344 - 42x

6x + 42x = 1344

48x = 1344

x = \frac{1344}{48}

x = 28 units

Therefore, Option (A). x = 28 units will be the answer.

4 0
3 years ago
WILL GIVE BRAINLIEST!!! NO UNHELPFUL ANSWERS OR I WILL REPORT!!!
tatyana61 [14]

Answer:

b

Step-by-step explanation:

because it is

8 0
3 years ago
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Find the inverse function of m(x) = 5x - 5 A m-1(x) = 5x + 5 B m-1(x) = -5x + 5 C m-1(x) = x+5/5 D m-1(x) = x+5/-5x
bogdanovich [222]
Hi there!

m(x) = 5x - 5
First replace m(x) by y.

y = 5x - 5
To find the inverse function we must switch the places from the variables x and y.

x = 5y - 5
Now we need to isolate the y again to find the formula of the inverse function. First add 5 to both sides.

x + 5 = 5y
Switch sides.

5y = x + 5
And finally divide both sides by 5.

y =  \frac{x + 5}{5}
And therefore we can conclude the following:

m {}^{ - 1} (x) =  \frac{x + 5}{5}
The answer is C.
~ Hope this helps you!







6 0
3 years ago
Read 2 more answers
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