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34kurt
3 years ago
5

What value of x makes this proportion true?

Mathematics
2 answers:
Hatshy [7]3 years ago
8 0
3\x=15\40
3(40)=x(15)
120=15x divide both sides by 15
x=8
mihalych1998 [28]3 years ago
4 0
15/3 = 5
40/5 = 8
x = 8 

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Find the value of x for which x²-3x - 10 /<br>x² + 12x + 36<br>is equal to zero, undefined​
GREYUIT [131]

Answer:

x= -6 twice

Step-by-step explanation:

x^2-3x-10/x^2+12x+36

By using undefined fraction we only take the denominator and equate it to 0

x^2+12x+36=0

x^2+6x+6x+36=0

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x+6=0 or x+6=0

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6 0
4 years ago
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7 0
3 years ago
Read 2 more answers
This table shows the daily high temperature, in Fahrenheit, for two cities for ten days. City A 90 85 84 85 80 82 83 85 89 82 Ci
Anni [7]

Since the person didn't write the answer choices they were:

A. On average, city A was warmer than city B.

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7 0
4 years ago
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A man, 1.5m tall, is on top of a building. He observes a car on the road at an angle of 75°. If the building is 30m, how far is
kolbaska11 [484]

Answer:

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Step-by-step explanation:

This problem is best illustrated in the photo below.

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To solve for x,

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SOH: Sine =  

CAH: Cosine =  

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6 0
3 years ago
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7 0
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