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Romashka-Z-Leto [24]
3 years ago
13

The mean score on a physics test was 75 points. Amy’s score was 67 points, which was 2 standard deviations below the mean.

Mathematics
1 answer:
Marrrta [24]3 years ago
3 0

Answer:

16

Step-by-step explanation:

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An equation of the circle whose center is the origin and
tankabanditka [31]

Answer:

\fbox{\begin{minipage}{10em}Option C is correct\end{minipage}}

Explanation:

A circle whose center is (a, b) and radius r, has equation:

(x - a)^{2} + (y - b)^{2} = r^{2}

The center of circle is  given as origin (0, 0), therefore:

a = 0\\b = 0

This circle passes (3, 0), then the radius of circle is the distance (d) between origin (0, 0) and (3, 0)

d = \sqrt{(0 - 3)^{2} + (0 - 0)^{2} } = \sqrt{3^{2} } = 3

=> r = d = 3

Substitute a, b, and r back into original equation:

(x - 0)^{2} + (y - 0)^{2}  = 3^{2}

or

x^{2} + y^{2} = 9

Hope this helps!

:)

3 0
3 years ago
dion places a ladder against The side of his house as shown in the diagram below. Dion’s water is 26 feet long, and he places th
gregori [183]

Complete question :

dion places a ladder against The side of his house as shown in the diagram below. Dion’s water is 26 feet long, and he places the ladder at a 70° angle with the ground, How high does the ladder reach up the side of the building?.

Answer:

24.43 feets

Step-by-step explanation:

Using trigonometry :

Sinθ = opposite / hypotenus

Opposite = height, h

Hypotenus = 26

Sin 70° = h / 26

0.9396926 * 26 = h

height, h = 24.43 feets

6 0
3 years ago
Ben the camel drinks tea ( so classy ). he drinks 350 liters of tea every 2 days
ziro4ka [17]

Ben drinks 1,050 liters of tea every 6 days.

<h3>How many liters of tea does Ben drink every 6 days?</h3>

Convert the object's dimensions into centimeters before performing the volume calculation in liters. Next, determine a shape's volume using the volume formula. The metric unit for measuring volume or capacity is the liter (or liter). Liters are a standard unit of measurement frequently used to measure liquids.

Divide Bens daily tea usage by the number daily tea usage rate.

Ben the camel drinks tea ( so classy ).

He drinks 350 liters of tea every 2 days.

liters (Volume) = usage times /days

350 × (6/2)

= 350 × 3

= 1,050 liters of tea does Ben drink every 6 days.

As a result, Ben drinks 1,050 liters of tea every 6 days.

#SPJ4

7 0
2 years ago
What is the product in simplest form −6/11⋅3/4
vesna_86 [32]
-6/11•3/4= -9/22 !!!!!
7 0
3 years ago
Read 2 more answers
Please answer soon!! Thank you!!
Kipish [7]
A (-12,-8), B(6,-3), C(3,3)
4 0
3 years ago
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