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just olya [345]
3 years ago
15

Can someone help me really quick

Mathematics
1 answer:
Elena L [17]3 years ago
8 0
In your 30° - 60° - 90° triangle, the ratios of the sides are
.. PR : QR : PQ = 1 : √3 : 2

A) QR/PQ = (√3)/2 . . . . . TRUE

B) PR/PQ = 1/2, not (√3)/2 . . . . false

C) QR/PR = (√3)/1 . . . . . TRUE

D) PQ/PR = 2/1, not √3 . . . . . . .false

E) QR/PR (see C) . . . . . . . . . . .false

F) PQ/PR = 2/1 . . . . . . . .TRUE
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The product of which expression contains 4 decimal places
oee [108]

Answer:

14.2 x 0.784

Step-by-step explanation:

5 0
3 years ago
Simify the expression (-11/2 x + 3) -2(-11/4 x -5/2)
Sedaia [141]
Hope this helps a friend

6 0
3 years ago
-2x - 4 = 20 i need hlp
BARSIC [14]

Answer:

X= -12

Step-by-step explanation:

-2x-4=20

-2x-4+4=20+4

-2x=24

x=-12

7 0
3 years ago
Ben buys a car for $50,000. The value of the car decreases at a rate of 4% per year. How much will the car be worth in 3 years?
lara31 [8.8K]
Given that the value of $50000 car decreases by 4%  per year, the value after 3 years will be given by exponential form:
y=abˣ
where:
a=initial value
b=decreasing rate
x=time in years
from the information:
a=50000, b=0.96, x=3
thus
y=50000(0.96)³
simplifying we get:
y=$44, 236.8
~$44237

Answer:
<span>B. $44,237</span>
6 0
4 years ago
Factor the trinomial below.
Ilia_Sergeevich [38]

Answer:

B

Step-by-step explanation:

yes, we need two numbers that multiplied with each other results in -48.

that means already that one of them has to be positive and the other negative.

that gives us (with all +/- alternating sign combinations)

2 and 24

3 and 16

4 and 12

6 and 8

to pick from there we see that the "middle" term is -2x.

that means that the absolute value of the negative number has to be 2 more than the positive number (so that when adding the intermediate multiplication terms we end up with -2x).

the only choice is therefore 6 and -8.

and that makes B the right answer.

3 0
3 years ago
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