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Serggg [28]
2 years ago
5

A 20-foot ladder is leaning on a

Mathematics
1 answer:
Gwar [14]2 years ago
3 0

Answer:

From the bottom of the building to the top of the ladder, it is 16 feet.

Step-by-step explanation:

Depending on what grade you are in, you might know the Pythagorean theorem, whose equation is a^2+b^2=C^2 The measurement of the leaning ladder (20ft) is the hypotenuse of the right triangle, the distance from the bottom of the ladder to the building is the leg length (12ft). With this information we know the "c" of the equation, and the "b" or "a" of the equation. If we plug in the number for the letter the equation will look like this:  

12^2+b=20^2. 20 to the second power is 400, and 12 to the second power is 144. You can use the subtraction property of equality and get b^2=256. Use can use a calculator for this part. The square root of 256 is 16, which leaves the equation with b=16

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3 years ago
Using the image, determine the length of each arc.<br> m RC=<br> m CBR =
Montano1993 [528]

<u>Given</u>:

Given that the measure of ∠CDR = 85°

We need to determine the measure of \widehat{RC} and \widehat{CBR}

<u>Measure of arc RC:</u>

Since, we know that if a central angle is formed by two radii of the circle then the central angle is equal to the intercepted arc.

Thus, we have;

m\angle CDR = m \widehat{RC}

Substituting the values, we get;

85^{\circ} = m \widehat{RC}

Thus, the measure of \widehat{RC} is 85°

<u>Measure of arc CBR:</u>

We know that 360° forms a full circle and to determine the measure of arc CBR, let us subtract the values 360 and 85.

Thus, we have;

m\widehat{CBR}=360^{\circ}-m \widehat{RC}

Substituting the values, we have;

m\widehat{CBR}=360^{\circ}-85^{\circ}

m\widehat{CBR}=275^{\circ}

Thus, the measure of \widehat{CBR} is 275°

6 0
3 years ago
What is 11.16 times 3.27??
kirill115 [55]
11.16 times 3.27 is 36.4932
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3 years ago
9*10^7 is how many times larger than 3*10^-2
oee [108]
Step by step equation
5 0
3 years ago
Read 2 more answers
X - 7 = 13 - x help asap plz
bekas [8.4K]

Answer:

x = 10

Step-by-step explanation:

x - 7 = 13 - x

Step 1 : Collect like terms and simplify

x + x = 13 + 7 \\ 2x = 20

Step 2 : Divide both sides of the equation by 2

\frac{2x}{2}  =  \frac{20}{2}

Step 3 : Simplify by cross cancellation of common term : 2

x = 10

4 0
3 years ago
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