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Natali [406]
3 years ago
14

I NEED HELP PLEASE HELP MEEE

Mathematics
2 answers:
Nataly [62]3 years ago
6 0

Answer:

I ain't never seen two pretty best friend-

horrorfan [7]3 years ago
3 0

Answer:

252 ft^3

Step-by-step explanation:

Volume of a triangular prism = Area of base triangle * Height of the prism

Area of base triangle = 1/2 * base * height

= 1/2 * 7 * 9

= 1/2 * 63 = 63/2 ft^2

Volume = 63/2 * 8

= 63 * 4

= 252 ft^3

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42 of the 150 employees at Carlo's Car Repair wear contact lenses. What percent of the employees wear contact lenses?
antiseptic1488 [7]
\frac{42}{150} ÷ 2 = \frac{21}{75}

\frac{21}{75} ÷ 3 = \frac{7}{25}

\frac{42}{150}= \frac{7}{25}

Then, divide 7 by 25 because 25 is the divisor

7 ÷ 25 = 0.28

28% is the answer (:
6 0
3 years ago
The coordinates of quadrilateral PQRS are P(0, 0), Q(a + c, 0), R(2a + c, b), and S(a, b). How can you use coordinate geometry t
Flauer [41]
We will use the formula for the slope:
m = ( y2- y1 ) / ( x2 - x1 )
For PQ : m = ( 0 - 0 ) / ( a + c - 0 ) = 0
For RS : m = ( b - b ) / ( a - ( 2a + c )) = 0
Both slopes are m = 0, so PQ and RS are parallel to x - axis and at the same time parallel to each other ( PQ | | RS ). One pair of opposite sides is parallel.
8 0
3 years ago
Read 2 more answers
if there’s 12 girls selling cookies that are 2.75 and they need to reach $360 how many boxes would each girl have to sell
Sindrei [870]

Answer:

11 each

Step-by-step explanation:

360/2.75=130.9

rounding up, 131x2.75=360.25

131/12=10.9 boxes each

therefore each girl will have to sell 11 boxes

4 0
3 years ago
Solve sint = cos2t, for –4π ≤ t ≤ –2π
e-lub [12.9K]

Answer:

-(23/6)π

-(19/6)π

-3π

Step-by-step explanation:

cos2t=cos^2t-sin^2t => cos^2t=1-sin^2t =>cos2t=1-2sin^2t

sint=1-2sin^2t, if x=sint, thenn we have 2x^2+x-1=0

Here x=0.5, x=-1, as x=sint => sint = -1 solutions for -4π to -2π is t=-3π,

sint = 0.5 solutions for -4π to -2π is t= -(23/6)*π, and t = -(19/6)*π

3 0
3 years ago
(-2x-1)^2=0 How to solve brackets, please help
malfutka [58]
Not quite sure what you mean by brackets, but you can get the solution to this equation in a few steps:

<span>(-2x - 1)</span>² <span>= 0  ... square root both sides to eliminate the squared binomial
</span>√(-2x - 1)² = √0  ... simplify; the square is canceled out and the root of 0 brings you back to 0
-2x - 1 = 0  ... solve like a two-step equation
-2x = 1
x = -1/2 is your x-value.
3 0
3 years ago
Read 2 more answers
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