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3 years ago

I know how to do this but I just want to spend some points :)

Mathematics

1 answer:

Lunna [17]3 years ago

7 0

Answer:

domain: all real numbers

range: y<-2

Step-by-step explanation:

I think its correct but already know the answer sooo yea

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For what value of x must ABCD be a parallelogram? asap please!!

pochemuha

Parallelogram so
CD = AB
18x - 5 = 15x + 4
3x = 9
x = 3

answer
x = 3

3 0

3 years ago

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What is the length of line PS

stiks02 [169]

$PQ^2 = PR \times PS$

$(4x + 4)^2 = (3x + 3)(3x + 3 + 21)$

$16x^2 + 32x + 16= (3x + 3)(3x + 24)$

$16x^2 + 32x + 16= 9x^2 + 81x + 72$

$7x^2 - 49x- 56 = 0$

$7(x^2 - 7x - 8)= 0$

$(x - 8)(x + 1) = 0$

$x - 8 = 0~~~or~~~x + 1 = 0$

$x = 8~~~or~~~x = -1$

x = -1 makes the lengths of segments PQ and PR equal zero.
That is not possible, so the solution x = -1 is discarded.

x = 8

PS = 3x + 3 + 21

PS = 3x + 24

PS = 3(8) + 24

PS = 24 + 24

PS = 48

4 0

3 years ago

Which is greater: inches in a mile or seconds in a day? Show how you know.

MrMuchimi

Assuming you don't know the exact numbers, we can sequentially figure out the number of inches in a mile and seconds in a day

Inches in a mile:

There are 5280 feet in a mile.

5280*12 = 63360 inches in a mile

Seconds in a day:

There are 24 hours in a day

There are 24*60 = 1440 minutes in a day

There are 1440*60 = 86400 seconds in a day

There are more seconds in a day than inches in a mile.

4 0

3 years ago

3.a. Nikki buys 1 kg of oranges. She wants to choose the better discount. Which should she

zhenek [66]

Answer:

I'm pretty sure is the $0.40

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2 years ago

4. The top of the John Hancock Building is a rectangle whose length is 60 ft more than the width. The perimeter is 520 feet. Fin

Molodets [167]

D.) =100 ft, l = 160

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3 years ago

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