1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jenyasd209 [6]
3 years ago
11

What value of q makes the equation true? 21/q=7/9 A 14 B 27 C 36 D 63

Mathematics
1 answer:
CaHeK987 [17]3 years ago
5 0
I think it’s B because 7 times 3 is 21 and 9 Times 3 is 27
You might be interested in
Apply the distributive property to factor out the greatest common factor. 12+20=
Rina8888 [55]

Answer: 12+20 = 12 + 20 = 4(3+5)

Step-by-step explanation:

3 0
3 years ago
Which exponential function goes through the points (1,8) and (4,64)?
vova2212 [387]
Plug in (4,64) into each answer choice.

A) 4(2)^x
64 =4(2)^4 
64 = 4(16) 
64 = 64

Answer choice A is correct.

B) f(x) = 2(4)^x
64 = 2(4)^4
64 = 2(256)
64 ≠ 512

Answer choice B is incorrect.

C) f(x) = 4(2)^{-x}
64 = 4(2)^{-4}
64 = 4(-0.0625)
64 ≠ 0.25

Answer choice C is incorrect.

D) f(x) = 2(4)^{-x}
64 = 2(4)^{-4}
64 = 2(0.00390625)
64 ≠ 0.0078125

Answer choice D is incorrect.


Your answer is B<span>) f(x)=2(4)^x</span>
4 0
2 years ago
Classify each pair of numbered angles.
kifflom [539]
Adjacent angles are angles with a common side and vertex, linear pairs are adjacent angles that are supplementary, and vertical angles are angles made by the same two lines but on opposite sides.

For the first one, 5 and 6 clearly do not share a side but they are made up by the same 2 lines and are opposite of each other, making them vertical.

For the next one, since the angles only share 1 line (and not a side) they can't be any of the above. 
5 0
3 years ago
Read 2 more answers
Help ASAP please! I need the correct answer.
JulijaS [17]

Answer:

B

Step-by-step explanation:

120 degrees is 1/3 of the circumference of a circle.

So the formula is  2 * pi * r * theta / 360

Arc length = 2* 12 * 3.14 * 120/360

Arc length =25.12 feet

3 0
3 years ago
10% of what number is 78?
Zepler [3.9K]

Answer: x = 780

Step-by-step explanation: Well <u><em>percent</em></u> means <em>over 100</em> so we can set up an equation for this problem by reading it from left to right.

So we know that <u><em>10%</em></u> means <em>10/100</em>, <u><em>of</em></u> means times, <em><u>what</u></em> <em><u>number</u></em> means <em>x</em>, <u><em>is</em></u> means <em>equals</em>, and <em><u>12</u></em> means 12.

Notice that <em>10/100</em> can be reduced to 1/10.

So rewriting our problem we have <em>X/10 = 78</em>.

To get rid of the fraction, we multiply both sides of the equation by 10 and we have <em>x = 780</em>. So, 10% of 780 is 78.

Now let's check our answer back in the original problem to see if it makes sense.

We have <em>10% of 780 is 78</em>. Well we know that 100% of of 780 would be 780 so 10% of 780 should be alot less than 780 so 78 seems to make sense.

Image provided showing my work.

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the value of the function f(x) = 2x – 5 when x = 22? A17 B49 C105 D39
    7·1 answer
  • in a round robin tennis tournament involving 7 players, each player will play every other player twice. How many total matches w
    14·1 answer
  • Graph the direct variation y=−1.5x. Using the graph, find the value of y corresponding to the value of x equal to 1; 0; 2; 3.
    14·1 answer
  • Which is the prime factorization of 24?
    12·1 answer
  • The length of a rectangle is twice its width. The Perimeter is 42 cm. Find the length of each side.​
    14·1 answer
  • Find the slope of the line tangent to the function y=6-3x at the point (5,0)
    11·1 answer
  • A ,b, c, d , e, help please
    12·1 answer
  • 12. What's .25 as a fraction in simplest form?<br> A. 1/4<br> B. 1/5<br> c.25/100<br> D. 25/10
    11·2 answers
  • Round each number to the nearest thousand.
    12·2 answers
  • Samples of rejuvenated mitochondria are mutated (defective) in 1% of cases. Suppose 18 samples are studied, and they can be cons
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!