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iris [78.8K]
3 years ago
15

It's question B as I've done A please help

Mathematics
1 answer:
Hatshy [7]3 years ago
4 0
Its easy.use cos rule.
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the vertices of triangle PQR are P(-3, 8), Q(-6, -4), and R(1, 1). If you reflect triangle PQR across the x-axis, what will be t
otez555 [7]

Answer:

The coordinates of the vertices of the image will be:

P'=(-3,-8)

Q'=(-6,4)

R'=(1,-1)

Step-by-step explanation:

If you reflect a point P=(x,y) across the x-axis, the coordinates of the image will be P'=(x,-y), then:

P=(-3,8)=(xp,yp)→xp=-3, yp=8→P'=(xp,-yp)→P'=(-3,-8)

Q=(-6,-4)=(xq,yq)→xq=-6, yq=-4→Q'=(xq,-yq)=(-6,-(-4))→Q'=(-6,4)

R=(1,1)=(xr,yr)→xr=1, yr=1→R'=(xr,-yr)→R'=(1,-1)

3 0
3 years ago
Roger manages an ice cream stand. He keeps track of how many minutes each customer stands in line.
aalyn [17]
<span>0.5 = 2
0.75 = 2
1.0 = 3
1.25 = 4
1.5 = 5
2.0 = 2
2.25= 1
2.5 = 1

You should always count the numbers you used to make sure the total matched the total number of data.  In this case, there are 20 numbers, and the total is also 20.</span>
5 0
3 years ago
Read 2 more answers
Multiplying 5 and 3 does NOT tell you the total number of flash cards in the 5 piles. Which is the reason why?
erica [24]
5 * 3 does not tell you the total number of flash cards in 5 piles because you don't know how many cards are in each pile.

Mark me Brainliest pls!!!! It will help me rank up!

7 0
3 years ago
P(x)=(x-2)(x-3)(x+7) find the constant term
hram777 [196]
Short method: multiply constants
= ( - 2) \times ( - 3) \times (7) \\  = 6 \times 7 \\  = 42

Long mothod: expand it
= ( {x}^{2} - 5x + 6)(x + 7) \\  = ... \\  =  ... + 42

Answer: 42
5 0
3 years ago
A school bus has 22 rows of seats, and 4 students can be seated in each row. Students riding in the bus have filled 19 rows of s
Lelu [443]

Answer:

6

Step-by-step explanation:

total no. of seats = 22 x 4 = 88

total no. of seats occupied = 19 * 4 + (22-19)*4/2 = 76 + 6 = 82

no. of empty seats = 88 -82 = 6

3 0
2 years ago
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