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Dmitriy789 [7]
3 years ago
6

Solve the system of equations:

Mathematics
1 answer:
iVinArrow [24]3 years ago
5 0

(-1,-2) \:  \:  \:  \:  \: and \:  \:  \:  \:  \: (3,6) \\ Answer: A

Step-by-step explanation:

y = 2x \\ y =  {x}^{2}  - 3 \\  \\ 2x =  {x}^{2}  - 3 \\  {x}^{2}  - 2x - 3 = 0 \\ (x + 1)(x - 3) = 0 \\ x + 1 = 0 \:  \:  \:  \:  \: or \:  \:  \:  \:  \: x - 3 = 0 \\ x =  - 1 \:  \:  \:  \:  \: or \:  \:  \:  \:  \: x = 3

When x = -1

Substitute x = -1 into y = 2x

y = 2(-1)

y = -2

( -1, -2)

When x = 3

Substitute x = 3 into y = 2x

y = 2(3)

y = 6

( 3, 6)

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Engineers and architects often use transformed shapes to design objects or structures. Analyze a building or structure around yo
Crank

Answer:

A two story home might use translation to have both floors identical and most homes have windows of the same size and shape so they might also use translation. Sometimes buildings use reflection to make rooms opposite each other the same.

Step-by-step explanation:

4 0
2 years ago
Kelly has a cherry tree in her yard. Currently the tree is 9 feet tall. That is 80% taller than it
lukranit [14]

Answer:

80 percent of 9 is 4/5th of 9, which is 36/5 or 7.2

Hope this helped and brainliest please

6 0
2 years ago
a tourist drove his car for the total of 17.5 hours while on a 3-day vacation on the first day he drove 4.5 hours in the second
AleksAgata [21]

Answer:

1.75 hours

Step-by-step explanation:

Time for day 1 : 4.5 hrs

Time for day 2: (4.5 ×2.5)

Time for day 3: let it be denoted by a variable ,say T.

Total Time= 17.5

(Time for day 1 ) + (Time for day 2) +(Time for day 3) =17.5

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T= 1.75

7 0
2 years ago
3/4 m = 66<br> What is the answer?
omeli [17]

Answer:

m=88

Step-by-step explanation:

First we have to isolate the variable. In this case, it would be by multiplying the reciprocal of the fraction the both sides. M will be alone and the other side should come out to be 88. Assuming you know how to multiply with fractions, of course.

5 0
2 years ago
Which of the following is equivalent to 5 to the power of 3 + 1 to the power of 3
larisa [96]
While if u mean 5^3+1^3 then it’s 5^4 but if you mean 5^3+1^3 then it is 126
8 0
3 years ago
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