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3 years ago

If the variance is 81 grams, what is the standard deviation four times?

Mathematics

1 answer:

Svetlanka [38]3 years ago

6 0

Answer:

102

Step-by-step explanation:

i guess

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Find the x-intercept of the graph of the linear equation y = 2x + 4.

Tamiku [17]

Answer:

The x-intercept is -2

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Sales tax on a $400 stereo is $16. What is the tax on a $650 tv?

lana66690 [7]

Answer:

$2.6

Step-by-step explanation:

firstly we find percentage of tax .

(16/400) * 100

= 16/4

= 4 %

now ,

so 4% of 650

= (4*650)/ 100

=260/100

= $2.6

6 0

3 years ago

Ruby wants to estimate the height of a streetlamp post on her block. She stands a certain

ira [324]

Answer: The height of street would be 3.26 feet.

Step-by-step explanation:

Since we have given that

Angle of elevation = 71°

Distance traveled = 12 feet

Angle of elevation becomes 46°.

So, the height of the street lamp post would be

$h=\dfrac{d}{\cot 46^\circ-\cot 71^\circ}\\\\h=\dfrac{12}{0.965-0.344}\\\\h=\dfrac{12}{0.620}\\\\h=3.26\ feet$

Hence, the height of street would be 3.26 feet.

6 0

4 years ago

Todd placed 32 square tiles along the edge of his wooden dining room table, as shown below. Note: Figure is not drawn to scale.

Flauer [41]

Answer:

The diagonal is 421.

Step-by-step explanation:

This is a difficult question. To find the diagonal, you need to find the base and the height of the square. After that, you need to make it a triangle, by using this equation; $A=\frac{1}{2} BH$ (A being area, B being base, and H being height) then find the length of the hypotenuse of the triangle, which I will do for you.