Which ordered pair in the form (a, b) is a solution of this equation?3a – 4b = 21

A.
(–3, –2)

B.
(0, 7)

C.
(–2, –3)

D.
(7, 0)

Answers

Answer 1

Answer: 3(7)-4(0)=21
3*7=21-0=21
the answer is D

Answer 2

Answer: substitute the first number in the ( ) for a and the second for b
3(-3)-4(-2)
-9+8 does not =21

B. 3(0)-4(7)
0-28 does not = 21

C. 3(-2)-4(-3)
-6+12 does not =21

D. 3(7)-4(0)= 21 yeah

answer is D (7,0)

hope this helps

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A sheet of standard size copy paper measures 8.5 inches by 11 inches. If a ream is 500 sheets of paper has a volume of 187 inches cube. How thick is the ream?

Answers

Answer:

\large \boxed{\text{2.00 in}}

Step-by-step explanation:

The formula for the volume of a rectangular solid is

V = lwh

$\begin{array}{rcl}V & = & lwh\n187 & = & 8.5 * 11 * h\n& = & 93.5h\nh & = &(187)/(93.5)\n\n& = & \textbf{2.00 in}\n\end{array}\n\text{The ream is $\large \boxed{\textbf{2.00 in}}$ thick.}$

What is 3 divided by 579

Answers

579 divided. By. 3 = 193

The answer to your question is 0.005981

A ray bisects an obtuse angle into 2 congruent angles. what type of angle are those 2 congruent anglesa. acute
b. right
c. obtuse
d. straight

Answers

the type of angle are those 2 congruent angles isacute
so your answer is a. acute
hope that helps

A. An obtuse angle is less than 180 but greater than 90. So for examples sake I will use 179 degrees. 179 divided by 2 (as the angles are congruent) = 89.5 which is less than a right angle. Therefore, the angles will be acute.

Hope it helps :)

You choose two different movies on a list at random. Out of 15 movies on the list, 9 are action movies. The first movie you choose is an action movie. What is the probability that the second movie is also an action movie? Write your answer as a fraction in simplest form.

Answers

Answer:

the probability is 8/15 depending on whether the problem counts the drawing one out of the bag as one gone. Leaving the first one drawn, the probability would be 3/5.

Step-by-step explanation:

number of action movies/total number of movies= 9/15=3/5

3/5 is the probability of drawing an action movie from the bag. However, since you just drew one out, the fraction changes to 8/15.

What is the measure of angle x?A pair of parallel lines is cut by a transversal. An exterior angle on the left of the transversal is labeled as 45 degrees. An interior angle on the right of the transversal, which is not vertically opposite to the 45 degree angle, is labeled as x.

45 degrees
90 degrees
135 degrees
140 degrees