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2 years ago

Please help thank you.

Mathematics

1 answer:

Tamiku [17]2 years ago

6 0

Answer:

first solution for first question, and last solution for second questions..

Step-by-step explanation:

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PLEASE HELP I DONT KNOW THE ANSWERS TO THOSE TWO QUESTIONS THIS IS TIMED!!!

fredd [130]

Answer:

39 & —34

Step-by-step explanation:

ATTACHED PICTURE!

8 0

2 years ago

What are the values of the trigonometric ratios for this triangle?

Norma-Jean [14]

We know that
in the right triangle

sinθ=opposite side/hypotenuse
cosθ=adjacent side/hypotenuse
tanθ=opposite side/adjacent side

in this problem
opposite side angle θ=8
adjacent side angle θ=15
hypotenuse=17
so

sinθ=8/17
cosθ=15/17
tanθ=8/15

4 0

2 years ago

G a survey of property owners' opinions about a street-widening project was taken to determine if owners' opinions were related

Naily [24]

Answer:

The expected frequency for people against the project and who have over 120 feet of property foot frontage is 3.9.

Step-by-step explanation:

The data provided is:

Opinion

Front Footage For Undecided Against Total

Under 45 feet 12 4 4 20

45-120 feet 35 5 30 70

Over 120 feet 3 2 5 10

Total 50 11 39 100

The formula to compute the expected frequency is:

$E(X)=\frac{\text{Row Total}\times \text{Column Total}}{\text{TOTAL}}$

Compute the expected frequency for people against the project and who have over 120 feet of property foot frontage as follows:

$E(X)=\frac{\text{Row Total}\times \text{Column Total}}{\text{TOTAL}}$

$E(5)=\frac{10\times 39}{100}=\frac{39}{10}=3.9$

Thus, the expected frequency for people against the project and who have over 120 feet of property foot frontage is 3.9.

6 0

2 years ago

Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale. (1 point) 9.7 9.2 9

Vilka [71]

X= 9.2

From the figure, the chord (12) is drawn with a line (from the center of the circle) perpendicular to it. It can be said that the chord 12 is bisected by the 7 long line from the center which gives us with 6 each of the two parts of the chord. Since they are forming (the 6 and 7) a right angled triangle, we can then use Pythagorean theorem to find X, which can be seen as the radius at the same time hypotenuse of the right angled triangle.

4 0

2 years ago

3. Use the Distributive Property to solve the equation 2(x – 3) + 3 = 6x – 5.

ohaa [14]

2*x-2*3+3=6x-5

2x+6+3=6x-5

2x+9=6x-5

-4x=-14

x=3.5

8 0

2 years ago

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