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klasskru [66]
3 years ago
9

a Triangle has vertices A(-1,3), B(0,2), and C( -4,0). find the coordinates of the triangle after translating it up 2 units and

reflecting it in the x-axis.
Mathematics
1 answer:
Blizzard [7]3 years ago
3 0
A (1,5) B (2,4) C (-2,2)
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Fill in the missing terms.
san4es73 [151]

a) 2

b) 2

c) 6

d) 15

e) 2

f) 3

6 0
3 years ago
Five men can install 200 yards of pipeline in an eight hour day three men are added to the job assuming the individuals rates re
Novay_Z [31]

Answer:

7 days

Step-by-step explanation:

Five men do 200 yards in one day

One man does 200/5 = 40 yards in 1 day.

=============

Now you want to know something about 8 men

8 men can do 40 * 8 = 320 yards in 1 day

=============

2240 yards / 320 yards = 7 days

3 0
4 years ago
Please help me solve the system of equations.
Iteru [2.4K]

Answer: (-2, 0) and  (0, -2)

Step-by-step explanation:

This system is:

y + x = -2

y = (x + 1)^2 - 3

To solve this we first need to isolate one of the variables in one fo the equations, in the second equation we have already isolated the variable y, so we can just replace it in the first equation:

(x + 1)^2 - 3  + x = -2

Now we can solve this for x.

x^2 + 2*x + 1 - 3 = -2

x^2 + 2*x + 1 -3 + 2 = 0

x^2 + 2*x + 0 = 0

The solutions of this equation are given by the Bhaskara's formula, then the solutions are:

x = \frac{-2 +- \sqrt{2^2 -4*1*0} }{2*1} = \frac{-2 +- 2}{2}

The two solutions are:

x = (-2 - 2)/2 = -2

In this case, we replace this value of x in the first equation and get:

y - 2 = -2

y = -2 + 2 = 4

This solution is x = -2, y = 0, or (-2, 0)

The other solution for x is:

x = (-2 + 2)/2 = 0

If we replace this in the first equation we get:

y + 0 = -2

y = -2

This solution is x = 0, y = -2, or (0, -2)

7 0
3 years ago
The magazine Sports Illustrated asked a random sample of 750 Division I college athletes, "Do you believe performance-enhancing
Ostrovityanka [42]

Answer:

a) Mean = 0.30, SD = 0.017

Step-by-step explanation:

The mean and sampling distribution of the sample proportion can be found using the equations

Mean= p

SD=\sqrt{\frac{p*(1-p)}{n} }

where

  • n is the sample size (750)
  • p is the sample proportion of all Division I athletes think that these drugs are a problem (0.30 or 30%)

Using these information:

Mean = 0.30

SD=\sqrt{\frac{0.30*0.70}{750} } ≈ 0.017

3 0
3 years ago
Which is bigger 7/8 or 0.78
agasfer [191]
<span>7/8 = 7 * 1/8 and 1/8 = 1 : 8 = 0.125. After that: 7 * 0.125 = 0.875. Finally, 0.875 > 0.78. We can do it also by transforming 0.78 to fraction: 0.78 = 78/100 = 39/50 and then multiplying the numerator and the denominator by 4: 39/50 = 156 / 200 . Then we will also multiply 7/8 * 25/25 = 175/ 200. Obviously: 175/200 > 156/200. Answer: 7/8 is bigger than 0.78. </span>
6 0
3 years ago
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