3 years ago

Which number line model represents the expression 6+(-2)?

Mathematics

1 answer:

insens350 [35]3 years ago

6 0

Answer:C

Step-by-step explanation:

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7^2•3^2+(1+2)^0•3-4^2•1

Kamila [148]

7^2•3^2+(1+2)^0•3-4^2•1
= 49•9 + 1•3 - 16•1
= 441 + 3 - 16
= 428

6 0

3 years ago

A rectangle is inscribed in a semicircle of radius 10 as shown in the figure. Find a function that models the area A of the rect

monitta

So based on your question where there is a rectangle inscribed in a semicircle or a radius 10 as shown in your figure. The possible function that could represent the are of the rectangle is A=2x*sqrt(100-x^2) i hope you are satisfied with my answer and feel free to ask for more

5 0

3 years ago

Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre

Maru [420]

Answer:

The large sample n = 117.07

Step-by-step explanation:

Step(i):-

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

Step(ii):-

The Marginal error is determined by

M.E = $\frac{Z_{0.05} \sqrt{p(1-p)} }{\sqrt{n} }$

$0.08 = \frac{2 X \sqrt{0.75(1-0.75)} }{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{2 X \sqrt{0.75(1-0.75)} }{0.08 }$

√n = $\frac{2 X0.4330}{0.08} = 10.825$

squaring on both sides , we get

n = 117.07

Final answer:-

The large sample n = 117.07

6 0

2 years ago

Find the measure of an angle that is complementary to

Anton [14]

Answer:

9 degrees

Step-by-step explanation:

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3 years ago

Question: The graph of a second-order polynomial is shown below, and the intercepts with the axes are marked. Explain how you ca

notka56 [123]

Answer:

Step-by-step explanation:

7 0

2 years ago