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postnew [5]
3 years ago
15

Pls help me whoever give me an correct answer they will receive a brainiest

Mathematics
1 answer:
emmainna [20.7K]3 years ago
6 0

Answer:

80

Step-by-step explanation:

The ratio is 40:1, we have to find x is x:2. 40:1=x:2, 40/1=x/2. 40=x/2, 80=x.

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The perimeter of a semicircle is 81.212 yards. what is the semicircle's diameter?
adoni [48]

\textit{circumference of a semicircle}\\\\ C=\pi r ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=81.212 \end{cases}\implies 81.212=\pi r\implies \cfrac{81.212}{\pi }=r \\\\\\ \stackrel{\textit{its diameter is}}{2r\implies 2\left( \cfrac{81.212}{\pi } \right)} ~~ \approx ~~ 51.7

4 0
2 years ago
When a house agent sells a house, she gets 8% commission on the sales price. if a house is sold for 450 000, what will the commi
Wittaler [7]

Answer:

36,000 dollars

Step-by-step explanation:

5 0
3 years ago
Write the following statement as a conditional statement. All rectangles have four sides.
ch4aika [34]
 All rectangles<span> are parallelograms. </span>
6 0
3 years ago
Read 2 more answers
Determine the total number of roots of each polynomial function using the factored form. f (x) = (x + 5)3(x - 9)(x + 1)
densk [106]

Answer:

Answer is 5

Step-by-step explanation:

Okay hun so let me tell u what's up here

They give us this equation and ask for the 'roots'

(x+5)^3(x-9)(x+1)

Now lemme tell you the roots of this one

-5, 9, -1

you get this from making each of them 0

The answer to this would be "3" because there are 3 roots, buT wait theRe'S mOre

(x+5) goes 3 times

So thy must recount it

-5, -5, -5, 9, -1 <-- These are the roots

that's 5 roots in total

....also I did this on edgen, got it right with 5

5 0
3 years ago
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A child is flying a kite 145ft above the ground. The string makes an angle of 57 degrees from the child's hands. How much has be
Arturiano [62]

Answer: the length of string that been let out to fly the kite this high is 172.89 ft

Step-by-step explanation:

The length of string attached to the kite, the vertical height of the kite above the ground and the ground distance forms a right angle triangle.

With an angle of 57 degrees, the length of the string that is attached to the kite represents the hypotenuse of the right angle triangle.

The height of the kite above the ground represents the opposite side of the triangle

To determine h, the length of the string that has been let out to fly the kite this high, we would apply the

Sine trigonometric ratio which is expressed as

Sine θ = opposite side/hypotenuse

Sin 57 = 145/h

h = 145/Sin57 = 145/0.8387

h = 172.89

7 0
3 years ago
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