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3 years ago

Pls, help me with this problem.

Mathematics

1 answer:

Dmitry [639]3 years ago

7 0

The small table gets more pizza per person. when divided 10/4=2.5. 8/3=2.67.

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Is square root 1-cos^2theta=-sintheta true? if so, in which quadrants does angle theta terminate?

oksano4ka [1.4K]

Yes it is true:

(1 - cos^2 x) = sin^2 x Sqr.(1 - cos^2 x) = sin x and (-sinx) True, since sin x negative. Also, x terminates in quadrant 3 and 4. Hope this is helpful

4 0

3 years ago

Michael owns dogs, hamsters and fish in the ratio 2:3:6

Luba_88 [7]

Answer:

Step-by-step explanation:

I think you just add the ratios together.

7 0

3 years ago

7 fruit tarts. Each tart needs 3/4 cup of strawberries and 1/4 cup of blueberries. What is the total amount of fruit needed

Murrr4er [49]

3/4 x 7 =5 and 1/4 cup
1/4 x 7 = 1 and 3/4 cup
1/4 + 3/4 =1 cup
so 7 cups in total hope this helped:)! brainliest please:)?

6 0

4 years ago

What's the answer to this?

Pavlova-9 [17]

It looks like a test

8 0

4 years ago

Bradford Electric Illuminating Company is studying the relationship between kilowatt-hours (thousands) used and the number of ro

slamgirl [31]

For the regression equation and e the number of kilowatt-hours, in thousands, for a six-room house is mathematically given as

Y = 1.33-0.667X and 5.3332

<h3>What is the number of kilowatt-hours, in thousands, for a six-room house?</h3>

Generally, the equation for the standard deviation is mathematically given as

$s$ ₓ = $\sqrt{\frac{\sum\(X-\=X)^2}{n-1} }$

= $\sqrt{\frac{66.9}{10-1} }$

= 2.72

$s_y$ = $\sqrt{\frac{36.4}{10-1} }$

= 2.01

therefore correlation coff

r = $\frac{44.6}{(10-1)(2.72)(2.01)}$

r = 0.9038

In conclusion the regression equation is given

b = r_sy/sx

b = (0.9038)(2.01/2.72)

= 0.667

intercept

a = 7.4-0.667(9.1)

a = 1.33

The regression equation is

Y = 1.33-0.667X

(b) number of kilowatts x = 6 house

Y = 1.33-0.667X

Y = 1.33-0.667(6)

= 5.3332