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TEA [102]
3 years ago
15

-6x - 10 y=-12 -12x - 20 y=-24

Mathematics
1 answer:
EleoNora [17]3 years ago
7 0

Answer:

minus x minus y and you get your answer

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What is 1/4 in feet?
Readme [11.4K]

Answer:

0.25 feet

7.62 centimeters

3 inches

Step-by-step explanation:

Not really a clear question-

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2 years ago
Find the area of 20mm 14mm 32mm
lora16 [44]

Answer:

42 is an area

Step-by-step explanation:

4 0
2 years ago
Pre-image ABCD was dilated to produce image A'B'C'D' .
LUCKY_DIMON [66]
14/8 = 1.75
The scale factor is 1.75 because 8* 1.75 = 14
3 0
3 years ago
Read 2 more answers
[Function Composition] could someone help me with this answers or show work either is fine
zavuch27 [327]

Answer:

21

Step-by-step explanation:

Given the following expressions

f(x) = x³-2x

g(x) =-x-2

We are to find (fog)(-5)

fog = f(g(x))

f(g(x)) = f(-x-2)

Replace x with -x-2 in f(x)

f(-x-2) = (-x-2)³-2(-x-2)

f(-x-2) = (-x-2)³+2x+4

fog = (-x-2)³+2x+4

Substitute x = -5 into the result

fog(-5) = (-x-2)³+2x+4

fog(-5) = (-(-5)-2)³+2(-5)+4

fog(-5) = (5-2)³-10+4

fog(-5) = 3³-6

fog(-5) = 27-6

fog(-5) = 21

Hence the required result of the composite function is 21

8 0
3 years ago
Ada, Betty, Chris and David have $45 in total Ada gota 52 fromBetty, Chris tripleshis money and Davids money is cut by hall four
andrezito [222]

Using a system of equations, it is found that initially Ada has $0.385.

For the system, we have that the variables are:

  • x is Ada's amount.
  • y is Betty's amount.
  • z is Chris's amount.
  • w is David's amount.

$45 total, hence:

x + y + z + w = 45

Ada <u>gets 2 from Betty</u>, hence:

x + 2 = y - 2

x = y - 4

y = x + 4

<u>Chris triples</u> his money and <u>David's</u> money is <u>cut by half</u> four of them have the same amount, hence:

x + 4 = y = 3z = \frac{w}{2}

Then:

3z = x + 4

z = \frac{x + 4}{3}

x + 4 = \frac{w}{2}

w = 2x + 8

Solving for w, we find Ada's initial amount.

x + y + z + w = 45

x + x + 4 + \frac{x + 4}{3} + 2x + 8 = 45

4x + 12 + \frac{x + 4}{3} = 45

12x + 36 + x + 4 = 45

13x = 5

x = \frac{5}{13}

x = 0.385

Initially, Ada has $0.385.

A similar problem is given at brainly.com/question/6120515

5 0
3 years ago
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