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o-na [289]
3 years ago
8

Please help me understand

Mathematics
1 answer:
Olin [163]3 years ago
6 0

Answer:

2

Step-by-step explanation:

The scaled factor has to be 2 because 4*2=8. You can check 2 is the correct answer by doing 8/2, which is 4. The scaled factor has to be proportional so if one side of ABC was 2 but the same side on ABC prime or A’B’C’ was 10 it would not be proportional, not a scaled factor. Because 2*10 is 5, not 8. But it does not give any other side lengths so it is 4.

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Oksana_A [137]
First we make multiplications in brackets 62 + 12-24
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7 0
4 years ago
Read 2 more answers
W + 1200+209 = 2000
SIZIF [17.4K]

Answer:

591

Step-by-step explanation:

added the 2 in the equation and minused 2000 from that

3 0
3 years ago
Draw and shade figures that represents 25%
kvv77 [185]
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The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 F
kotegsom [21]

Answer:

After 8 minutes will the temperature be 138.1 F

Step-by-step explanation:

Given that:

The water has been on the stove y=9.5x+62.1      .....[1]

where

y represents the temperature in Fahrenheit(F)

x represents the time in minutes.

We have to find after how many minutes will the temperature be 138.1 F.

⇒y = 138.1 F

Substitute the given value in [1] to solve for x;

138.1=9.5x+62.1

Subtract 62.1 from both sides we get;

76=9.5x

Divide both sides by 9.5 we get;

8 = x

or

x = 8 minutes.

Therefore, after 8 minutes will the temperature be 138.1 F

4 0
3 years ago
A box contains 10 pins
Nataly [62]

Answer:

The probability is 8/15

Step-by-step explanation:

Firstly, we identify the probabilities of picking each of the colors as follows;

The probability of picking a blue pin P(b) is 3/10 while the probability of picking a green pin P(g) is 7/10

Now to pick  pins of the same colors after two attempts mean we either pick P(g).P(g) or P(b).P(b)

We must know that the balls are picked without replacement. Picking without replacement mean when the ball is picked, it is removed from the mix and will not be replaced when making another selection

The probability of picking two greens one after the other without replacement = 7/10 × 6/9 = 42/90 = 7/15

The probability of picking two blue pins one after the other without replacement is 3/10 × 2/9 = 6/90 = 1/15

In probability, once we have 'or' we add;

Hence P(g).P(g) or P(b).P(b) = 7/15 + 1/15 = 8/15

8 0
3 years ago
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