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sergey [27]
3 years ago
13

What is the probability that the teacher chooses a girl to answer the question?

Mathematics
1 answer:
Mademuasel [1]3 years ago
6 0
What? Is this even a real question you need help with ?
You might be interested in
3x^2+5x+2 help me solve this
katovenus [111]

Answer:

  (3x +2)(x +1)

Step-by-step explanation:

A number of different ways are suggested for doing this. One that seems straightforward is this.

For ax^2 +bx +c, look for factors of ac that total b. Here we have ...

  ac = 3·2 = 6

  b = 5

It is easy to see that the factors we just multiplied to get 6 are ones that total 5: 3+2 = 5.

Now, rewrite the "bx" term using this sum.

  3x^2 +3x +2x +2

Factor each pair of terms.

  3x(x +1) +2(x +1)

And factor out the common factor:

  (3x +2)(x +1)

6 0
3 years ago
Write the equation of the line that passes through the points (-8,-5) (5,−8)
Nikolay [14]

Answer:

y=-3/13x-89/13

Step-by-step explanation:

m=y²-y¹/x²-x¹

m=(-8)-(-5)/5-(-8)

m=-3/13

y-y=m(x-x1)

y-(-8)=-3/13(x-5)

y+8= -3/13x+15/13

-8 -8

y=-3/13x-89/13

7 0
3 years ago
Find three consecutive odd integers where the sum of the first two numbers multiplied by the last number is 3116.
skad [1K]
B I think cause I tried them all
6 0
3 years ago
Find the scale.<br><br><br>Model length: 40 cm<br><br><br>Actual length: 60 m
tensa zangetsu [6.8K]

Answer:

2/3

Step-by-step explanation:

Given

Model length: 40 cm

Actual length: 60 m

Scale for any model is ratio of model length of object and actual length of object

Therefore scale for problem stated = Model length/Actual length

= 40/60 = 4/6 = 2/3

3 0
3 years ago
Katalin drove 210 miles on her vacation. She drove an average of 1.4 times faster on the second 105 miles of her trip than she d
svetlana [45]

Hello.

If Speed = Distance ÷ Time then Time = Distance ÷ Speed

The time taken for the first 90 miles is, 90/x

The time taken for the second 90 miles is, 90/1.5x

The time for the complete journey = 90/x + 90/1.5x = 450/3x = 150/x

Have a nice day

3 0
4 years ago
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