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3 years ago

NEED HELP FAST

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

5 0

Your answer is C :) blessings

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Can someone please help me?

melomori [17]

Answer:

Hello! answer: 21.4

Hope that helps!

7 0

3 years ago

Find the value of x.

Ainat [17]

Answer:

$\textsf{x=22.5}$

Step-by-step explanation:

$\textsf{According to intersecting tangent - secant theorem,}$

$\textsf{x=1/2[(4x+5)-50]}$

$\textsf{2(x)=4x+5-50}$

$\textsf{2x=4x-45}$

$\textsf{2x-4x=-45}$

$\textsf{-2x=-45}$

$\textsf{x= -45/-2}$

$\textsf{x=22.5}$

$\textsf{OAmalOHopeO}$

5 0

3 years ago

If Professor Wilson found that the test scores of his students had a variance of 4.4, what is the standard deviation? Type a num

malfutka [58]

Answer:

The standard deviation will be: 2.1

Step-by-step explanation:

We know that standard deviation is basically the square root of variance.

Using the formula to calculate the standard deviation

$s=\sqrt{s^2}$

The variance = s² = 4.4

so the standard deviation can be calculated as:

standard deviation $=\sqrt{s^2}$

$=\sqrt{\left(4.4\right)^}$

$=2.1$

Therefore, the standard deviation will be: 2.1

8 0

3 years ago

A trough is filled with water. The trough holds 315 gallons. Each cubic foot of water contains about 7.5 gallons. The trough is

elena55 [62]

Answer:

The height of the trough is about 1.5 ft

Step-by-step explanation:

If each cubic foot of water contains about 7.5 gallons.

Then; 315 gallons is about $\frac{315}{7.5}=42ft^3$

Let h be the height of the trough, then

$7\times 4\times h=42$

This implies that;

$28h=42$

Divide both sides by 28 to get:

$h=\frac{42}{28}$

$\therefore h=1.5$

The height of the trough is about 1.5 ft

4 0

3 years ago

Which statements are correct interpretations of this graph?

ki77a [65]

3 boxes are filled every 4 min.

.75 boxes are filled per minute.

6 0

3 years ago