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DanielleElmas [232]
3 years ago
11

I need help with this question asap pleaseeeeee

Mathematics
2 answers:
Harman [31]3 years ago
6 0

Answer:

y = 3\sqrt{7}

Step-by-step explanation:

The two inner right triangles are similar, thus the ratios of corresponding sides are equal, that is

\frac{y}{9} = \frac{7}{y} ( cross- multiply )

y² = 63 ( take the square root of both sides )

y = \sqrt{63} = \sqrt{9(7)} = \sqrt{9} × \sqrt{7} = 3\sqrt{7}

makkiz [27]3 years ago
3 0
You can use the pythagorian theorem here:
The corner on the top side is 90 degrees too. So that means (9+7)^2 = A^2 + B^2. The two triangles against each other are the same, but bigger. That means that the left side is 9/16 out of the whole and the right side is 7/16 out of the whole So back to the pythagorean theorem (9+7)^2 = 256. Multiply that number by one of the two numbers before. I will take 9/16, the left side. 256x9/16 = 144. Take the square root of that, 12, and then you have the length of that side. Then use pythagorean theorem again. C^2 = 9^2 + 12^2
C^2 = 225.
C= 15
Seen as C stands for y, there is your answer
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5. How many even positive integers less than 600 can be written using
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The answer to this question is: 44.

Step-by-step explanation:

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5 0
3 years ago
A tree is 4 m 25 cm high! A pole is 70 cm shorter. How high is the pole? ​
ivanzaharov [21]

-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{3955cm}

-------------------------------------------------------------------------------------------------------------

Given: \textsf{Tree = 4m and 25cm, Pole = 70cm shorter}

Find: \textsf{The height of the pole}

Solution: The first step that we must take is to convert the tree height to centimeters and after doing so we would just subtract 70 cm from that to get the pole height.

<u>Convert to cm</u>

  • \textsf{m = 1000cm}
  • \textsf{4m = (1000cm * 4)}
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<u>Combine</u>

  • \textsf{4000cm + 25cm}
  • \textsf{4025cm}

<u>Subtract 70 from the tree height</u>

  • \textsf{4025cm - 70cm}
  • \textsf{3955cm}

Using the information from the problem the height of the pole would be 3955cm.

8 0
1 year ago
I need help with this Alice question.
Allisa [31]
Let  x be the number of miles EXCLUDING the first
Amount of money paid (excluding the first : $(0.1).x
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Now we have to add the 1st mile, then the total of miles = 23+1 = 24 Miles
3 0
3 years ago
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