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almond37 [142]
2 years ago
8

Is this right? Thx schoolwork

Mathematics
2 answers:
anyanavicka [17]2 years ago
6 0
Im positive u got that right if you didnt, then just try harder next time
pav-90 [236]2 years ago
5 0
I’m not so good with math but I’m pretty sure you got it right:) good job!
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Will mark BRAINLIST only if correct answer
Softa [21]

Answer:

70.60

Step-by-step explanation:

4 0
3 years ago
Help please picture included
posledela
48 divide 3 = 16 -48 =32 so the answer would be 32 for paulas dog and
16 for carlas dog
8 0
3 years ago
The commuter trains on the Red Line for the Regional Transit Authority (RTA) in Cleveland, OH, have a waiting time during peak r
eduard

Answer:

a) height of this uniform distribution = 1/8 = 0.125.

b) P( 4 < x < 5) = (5 - 4)*0.125 = 0.125

c) P( 3 < x < 8) = (8 - 3)*0.125 = 0.625

d) P(x = 0) = 0*0.125 = 0

Step-by-step explanation:

Height of this uniform distribution is same as finding the probability for each waiting minutes.

Height of uniform distribution = 1/n. Where n is the number of occurence, in this n = 8.

a) height of this uniform distribution = 1/8 = 0.125.

Let random variable x = waiting time.

b) probability of waiting between four and five minutes

P( 4 < x < 5) = (5 - 4)*0.125 = 0.125

c) probability of waiting between three and eight minutes

P( 3 < x < 8) = (8 - 3)*0.125 = 0.625

d) probability of waiting five minutes exactly.

Since this would be just one line, and the width of the line is 0, then the

P(x = 0) = 0*0.125 = 0

8 0
3 years ago
3. If Earth was 10 times farther away from the sun than it is now, which planet would it be closest to? (Assume all the planets
Valentin [98]

Real distance of Earth from Sun . . . 93 million miles
                                                 =  1 AU (Astronomical Unit)

10 times farther . . . . . 930 million miles  =  10 AU

Compare:

==>  Saturn . . .  9.5 AU
==>  Uranus. .  19.2 AU

If Earth were 10 times farther from the sun than we really are,
then our planet would be just barely past Saturn ... about 10%
of the way from Saturn to Uranus.

3 0
3 years ago
Match the system of equations on the left with the number of solutions on the right
erastova [34]

Answer:

top to bottom, the answers are b, c, a

Step-by-step explanation:

One way to find the solution to a system of equations is to substitute values in. For the first one,

y=2x+3

y=2x+5,

we can substitute 2x+3 =y into the second equation to get

y=2x+5

2x+3 = 2x+5

subtract 2x from both sides

3 = 5

As 3 is not equal to 5, this is never equal and therefore has no solution

For the second one,

y= 2x+7

y = (-2/3)x + 10

We can plug y=2x+7 into the second equation to get

2x + 7 = y = (-2/3)x + 10

2x + 7 = (-2/3)x + 10

add (2/3)x to both sides to make all x values on one side

2x + (2/3)x + 7  = 10

subtract 7 from both sides to make only x values on one side and only constants on the other

2x + (2/3)x = 3

(6/3)x + (2/3)x = 3

(8/3)x = 3

multiply both sides by 3 to remove a denominator

8x = 9

divide both sides by 8 to isolate x

x=9/8

There is only one value for when the equations are equal, so this has one solution

For the third one

y = x-5

2y = 2x - 10

Plug x-5 = y into the second equation

2 * y= 2*(x-5)

2 * (x-5) = 2x - 10

2x-10 = 2x-10

add 10 to both sides

2x=2x

As 2x is always equal to 2x, no matter what x is, there are infinitely many solutions for this system

6 0
3 years ago
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