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2 years ago

Is this right? Also what do I have to right in the box.

Mathematics

1 answer:

myrzilka [38]2 years ago

6 0

Answer:

WHAT IS RIGHT

Step-by-step explanation:

Is this right? Also what do I have to right in the box. WHAT IS...

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26. Julie says that sin A/cos A = tan A and sin B / cos B = tan B. Use the triangle shown to prove

PSYCHO15rus [73]

Julie is correct because:

$\frac{\sin A}{\tan A}=\frac{a/c}{b/c}=a/b=\tan A \\ \\ \frac{\sin B}{\cos B}=\frac{b/c}{a/c}=b/a =\tan B$

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7 months ago

Quadrilateral BEAR is inscribed in circle o,<br> What is the measure of R?

sattari [20]

Answer: 106 degrees. Don’t listen to the guy who said 88.

Step-by-step explanation: Found the answer on Khan Academy.

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2 years ago

Find the volume of the cylinder.

Georgia [21]

<h3>Answer:</h3><h3>Exact volume = 32pi</h3><h3>Approximate volume = 100.48</h3>

The approximate volume only applies when pi = 3.14

Use either answer, but not both of course.

===============================================

Work Shown:

V = volume of cylinder

V = pi*r^2*h

V = pi*2^2*8

V = pi*32

V = 32pi .... exact volume in terms of pi

V = 32*3.14

V = 100.48 .... approximate volume when we use pi = 3.14

6 0

2 years ago

Six different second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic re

Yanka [14]

Answer:

$Range=14$

$\sigma^2 =32.4$

$\sigma = 5 .7$

The standard deviation will remain unchanged.

Step-by-step explanation:

Given

$Data: 136, 129, 141, 139, 138, 127$

Solving (a): The range

This is calculated as:

$Range = Highest - Least$

Where:

$Highest = 141; Least = 127$

So:

$Range=141-127$

$Range=14$

Solving (b): The variance

First, we calculate the mean

$\bar x = \frac{1}{n} \sum x$

$\bar x = \frac{1}{6} (136+ 129+ 141+ 139+ 138+ 127)$

$\bar x = \frac{1}{6} *810$

$\bar x = 135$

The variance is calculated as:

$\sigma^2 =\frac{1}{n-1}\sum(x - \bar x)^2$

So, we have:

$\sigma^2 =\frac{1}{6-1}*[(136 - 135)^2 +(129 - 135)^2 +(141 - 135)^2 +(139 - 135)^2 +(138 - 135)^2 +(127 - 135)^2]$

$\sigma^2 =\frac{1}{5}*[162]$

$\sigma^2 =32.4$

Solving (c): The standard deviation

This is calculated as:

$\sigma = \sqrt {\sigma^2 }$

$\sigma = \sqrt {32.4}$

$\sigma = 5 .7$ --- approximately

Solving (d): With the stated condition, the standard deviation will remain unchanged.

5 0

2 years ago

plss can someone answer this really need help correct answer only plsss dont answer this for just a points i can brainly the cor

mylen [45]

The first solution involves the volume of a pyramid. With the parameters, the volume is given as: 51cm³

<h3>What is the Volume of a Pyramid?</h3>

The volume of a pyramid is given as:

V = (lwh)/3

Where:

L = base length
w = base width
h = pyramid height.

Hence, the volume of the pyramid is given as:

(6 x 5.2 x 4.9)/3

= 152.88/3

= 50.96

≈ 51 cm³

<h3>

What is the volume of the juice container?</h3>

Assuming that it is a cuboid, the volume for the shape of a cuboid is given as:
L x B x H

Where:

L = Length = 2cm

B (Width) = 34cm

H = Height = 12.2

Hence the Volume =

2 x 34 x 12.2

= 829.6

≈ 830 cm³

<h3>
What is the volume of the pit?</h3>

We are not given it's geometric description so we assume that it is a Cuboid.

Recall that the Volume of a Cuboid = L x B x H

Hence the Volume of the pit is:

7 x 5 x 8

<h3>= 280 cm³

How much space can a box that measures 50cm on each edge hold?

</h3>

From the question, we can infer that we are dealing with a Cube.

The volume of a cube is given as L³.

Recall that L = 50cm

Hence, the volume is = 50³
= 125,000‬ cm³

<h3>What is the volume of a rectangular prism?

</h3>

The formula for the volume of a rectangular prism is:

L x W x H; where

L (Length) = 130cm

W (Width) = 70cm

H (Height) = 110cm

→ 130 x 70 x 110

= 1,001,000 cm³

Learn more about volume at:
brainly.com/question/1972490
#SPJ1

7 0

1 year ago