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Nutka1998 [239]

3 years ago

11

To pass a math test students must correctly answer at least 0.6 of the questions Donald score is 5/8 Karen score is 4/5 how many

of the students passed the test

1 answer:

ivolga24 [154]3 years ago

8 0

Answer:

Step-by-step explanation:

Donald's score, rewritten as a decimal fraction, is 0.625.

Karen's, similarly rewritten, is 0,8.

Because both of these scores are greater than 0.6, both students passed.

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What is the distance between point P and point R?

stealth61 [152]

Answer:

PR = 10

Step-by-step explanation:

PR = $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

The coordinates for P and R are (0,4) and (-6,-4) respectively.

So you plug in the values:

PR = $\sqrt{(-6-0)^2+(-4-4)^2}$

PR = $\sqrt{(-6)^2+(-8)^2}$

PR = $\sqrt{36+64}$

PR = $\sqrt{100}$

PR = 10

3 0

3 years ago

Based on the survey results from 300 selected students in the Burbank School District (BSD), the 98% confidence interval used to

Pavlova-9 [17]

Answer:

follows are the solution to this question:

Step-by-step explanation:

Please find the correct question in the attached file:

The formula for calculating the Confidence interval of proportion:

$\to CI=\hat{p} \pm Z_{\frac{\alpha}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}\\\\\to \hat{p}=\frac{\text{lower limit +upper limit}}{2}\\$

$=\frac{0.48+0.60}{2}\\\\=\frac{1.08}{2}\\\\=0.54$

The number of learners with access to working at home on a computer:

$= 0.54 \times 300 \\\\=162$

Lower limit =0.48

upper limit = 0.60

$\to margin \ error = \frac{\text{upper limit - lower limit}}{2}\\$

$=\frac{0.60-0.48}{2}\\\\=\frac{0.12}{2}\\\\= 0.06$

5 0

3 years ago

URGENT HELP ME!! <br><br> please no links, thank you<3

Illusion [34]

Answer:

x greater than or equal to 3

x greater than or equal to -8/3

Step-by-step explanation:

3 0

3 years ago

The wavelength of violet light is 4.0 x 10−7 m. The wavelength of red light is 6.5 x 10−7 m. How much longer is the wavelength o

photoshop1234 [79]

Answer:

A

Step-by-step explanation:

We can substract the wavength of the violet light to the wavelength of the red light:

(6.5 x 10^-7 m) - (4.0 x 10^-7 m) = 2.5 x 10^-7 m

8 0

3 years ago

The sum of 5 consecutive numbers is -5. What is the largest out of the numbers?

xxTIMURxx [149]

We can say that x is the largest number.

So the sum is x + (x - 1) + (x - 2) + (x - 3) + (x - 4) = -5

Now solve for x:

x + x + x + x + x - 1 - 2 - 3 - 4 = -5

5x - 10 = -5

5x = 5

x = 1

So the largest number is 1.

Check: 1 + 0 + -1 + -2 + -3 = -2 + -3 = -5 so 1 is correct.

3 0

3 years ago