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nlexa [21]
3 years ago
11

A pair of vertical angles has measures (3x+4)° and (7x-9)° What is the value of x?

Mathematics
1 answer:
Andrei [34K]3 years ago
5 0
Since they are vertical they are equal to each other.

3x + 4 = 7x - 9
4 = 4x - 9
13 = 4x 
3.25 = x

So the value of x is 3.25.

Hope this helps :)
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Rewrite the following equation in standard form.<br><br> y= -5/8x− 7
Colt1911 [192]

Answer:


Step-by-step explanation:

y= -5/8x-7

To write in standard form get all the terms to one side

y+5/8x+7=0

I hope this is correct

Pls don't be mad if it is wrong


6 0
3 years ago
explain your process of converting a mixed number to an improper fraction.explain your process of converting a improper fraction
Sophie [7]
So I'll start with the mixed number to improper fraction.
Step one - multiply the denominator and the whole number.
Step two- take your product and add it to the numerator
Step three- the sum is the numerator of the mixed number and the original denominator is the denominator
___________________________
Now for improper fraction to mixed number
Step one- see how many times the denominator goes into the numerator (ex. 2 goes into 9, 4 times With one left over)
Step two -the 4 becomes the whole number and the 1 the numerator
Step three- use the same denominator
5 0
4 years ago
In science class, the students observed 24 of the 300 frogs from the local aquarium. If 6 of the frogs observed had spots, how m
Alona [7]

Answer:

225 frogs

Step-by-step explanation:

Total population of frogs = 300 frogs.

Observed population of frogs = 24

6 of the 24 observed frogs had spots

Which means , the number of frogs that did not have spots = 24 - 6 = 18 frogs.

We were told to find how many of the total population can be predicted to NOT have spots. We would form a proportion.

If 24 frogs = 18 frogs with no spots

300 frogs = Y

Cross multiply

24Y = 300 × 18

Y = (300 × 18) ÷ 24

Y = 5400 ÷ 24

Y = 225 frogs.

This means out of 300 frogs, 225 frogs do not have spots.

Therefore, the total population that can be predicted to NOT have spots is 225 frogs.

the total population can be predicted to NOT have spots

3 0
3 years ago
Solve the inequality for b.<br><br>4b - 12 -5b &lt; 9b + 8​
ValentinkaMS [17]

Answer:

9b-12<9b+8

Step-by-step explanation:

b<20

8 0
3 years ago
AC is tangent to circle O at A. The Diagram is not to scale.
statuscvo [17]

Answer:

  • B. 64°

Step-by-step explanation:

<u>Given:</u>

  • mBY = 52°

<u>Inscribed angle measure is half the intercepted arc:</u>

  • m∠BAY = 1/2(52°) = 26°

<u>The angle between the diameter and tangent is right angle:</u>

  • m∠BAC = 90°

<u>According to angle addition postulate:</u>

  • m∠YAC = m∠BAC - m∠BAY
  • m∠YAC = 90° - 26° = 64°

Correct choice is B

7 0
3 years ago
Read 2 more answers
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