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Luda [366]
3 years ago
8

Choose one a. 7.8 ft b. 8.8 ft c. 8.3 ft d. 9.2 ft

Mathematics
1 answer:
Scrat [10]3 years ago
8 0

A =s^2    since the wall is square

78 =s^2

take the square root of each side

sqrt(78) = s

s=8.83 ft

Choice B

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Geomtry plzzzz help me
victus00 [196]

Step-by-step explanation:

it is an isoceles triangle (equally long legs).

there is a right angle at W, so YW is the height of the isoceles triangle XYZ.

that means W splits XZ in half.

therefore,

ZW = XZ/2 = 38/2 = 19

8 0
3 years ago
Calculate the speed of a wave with the frequency of 100 hz and wavelength of 250 m, please.
masya89 [10]

Answer:

25000m/s

Step-by-step explanation:

The following formula is used to calculate the speed or velocity of a wave.

V = f * w

Where V is the velocity (m/s)

f is the frequency (hz)

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First, determine the frequency.

Calculate the frequency of the wave.

Next, determine the wavelength.

Calculate the wavelength of the wave.

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Using the formula above, calculate the wave speed.

7 0
3 years ago
W is the midpoint of VX and Z is the midpoint of VY . If XY=p and WZ=p–30, what is WZ?
juin [17]

\large{ \tt{❃ \: EXPLANATION}} :

  • You'll have to know : Mid-point theorem states that A straight line segment joining the mid-points of any two triangle is parallel to the third side and it is equal to half of the length of the third side.

  • We're provided : XY = p , WZ = p - 30 & we're asked to find out the value of WZ. For that , firstly we have to find out the value of p.

\large{ \tt{❁ \: LET'S \: START }: }

  • Set up an equation & solve for p :

\large{ \bf{☄ \: p  - 30 =  \frac{1}{2}  p }}

\large{ \tt{↦ \frac{1}{2} p = p - 30}}

\large{ \tt{↦ \frac{1}{2} p - p =  - 30}}

\large{ \tt{↦ \frac{p - 2p}{2} =  - 30 }}

\large{ \tt{↦p - 2p =  - 60}}

\large{ \tt{ ↦ \: - p =  - 60}}

\large{ \tt{↦p = 60}}

  • The value of p is 60

\large{ \tt{❇ \: REPLACING \: VALUE}} :

\large{ \tt{↬ \: wz = p - 30 =  60 - 30 =   \boxed{\boxed{ \tt{30 }} }✔}}

  • Hence , WZ = 30 .

♪ Success is not a magic or miracle , it's not a luck , it's full of late night hard work , compromises & sacrifices.

♡ Hope I helped ! ツ

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7 0
3 years ago
The dang answer to this here question on my practice lesson
yarga [219]
Answer is below.........

8 0
3 years ago
Read 2 more answers
PLEASE HELP <3
quester [9]

Answer:

-403/40

or

-10 3/40

or

-10.075

3 0
2 years ago
Read 2 more answers
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