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3 years ago

( BRAINLIEST! Please answer before 5:30 P.M!) See the pictures below for instruction.

Mathematics

1 answer:

Lyrx [107]3 years ago

6 0

8, 6, and 12.

To find this answer, just multiply the lengths of the line segments by the scale factor (in this case, it’s 4):
2 x 4 = 8
1.5 x 4 = 6
3 x 4 = 12

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Can someone tell me if it’s correct?

mart [117]

Yes yes it is correct

8 0

3 years ago

Read 2 more answers

Here is a simple probability model for multiple-choice tests. Suppose that each student has probability p of correctly answering

Alla [95]

Answer:

a) The probability that Jodi scores 78% or lower on a 100-question test is 4%.

b) The probability that Jodi scores 78% or lower on a 250-question test is 0.023%.

Step-by-step explanation:

a) To approximate this distribution we have to calculate the mean and the standard distribution.

The mean is the proportion p=0.85.

The standard deviation can be calculates as:

$\sigma=\sqrt{\frac{p(1-p)}{n} }= \sqrt{\frac{0.85*(1-0.85)}{100} }=0.04$

To calculate the probability that Jodi scores 78% or less on a 100-question test, we first calculate the z-value:

$z=\frac{p-p_0}{\sigma} =\frac{0.78-0.85}{0.04} =-1.75$

The probability for this value of z is

$P(x$

The probability that Jodi scores 78% or lower on a 100-question test is 4%.

b) In this case, the number of questions is 250, so the standard deviation needs to be calculated again:

$\sigma=\sqrt{\frac{p(1-p)}{n} }= \sqrt{\frac{0.85*(1-0.85)}{250} }=0.02$

To calculate the probability that Jodi scores 78% or less on a 250-question test, we first calculate the z-value:

$z=\frac{p-p_0}{\sigma} =\frac{0.78-0.85}{0.02} =-3.5$

The probability for this value of z is

$P(x$

The probability that Jodi scores 78% or lower on a 250-question test is 0.023%.

6 0

3 years ago

Pls help i need help :D

docker41 [41]

Answer:

$\frac{2808}{3125}$

Step-by-step explanation:

8 0

3 years ago

Algebra There were 4 times the number of students in fourth grade at the basketball game.How many students attended the basketba

denis-greek [22]

Answer:

200 students attended the basketball game

Step-by-step explanation:

The complete question in the attached figure

Let

x ------> the number of students in fourth grade

s -----> the number of students at the basketball game

we know that

The number of students at the basketball game is four times the number of students in fourth grade

The linear expression is

$s=4x$ -----> equation A

$x=50\ students\ in\ fourth\ grade$ -----> equation B

substitute equation B in equation A and solve for y

$s=4(50)$

$s=200\ students\ at\ the\ basketball\ game$

therefore

200 students attended the basketball game

8 0

3 years ago

The quotient of y and 6 is 29 find the value of y

atroni [7]

Y÷6=29
y=29 x 6
y=174

Hope I can help u

7 0

3 years ago