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IrinaK [193]
3 years ago
11

Evaluate the expression when a=- 7 and x=3. a-8x

Mathematics
2 answers:
inn [45]3 years ago
8 0

Answer:-31

\(31\)

Step-by-step explanation:

Substitute: \(7 - 8 \times (- 3)\)

Remove the parentheses:\(7 + 8 \times 3\)

Calculate the product or quotient:\(7 + 24\)

Calculate the sum or difference:\(31\)

Answer: \(31\)

FinnZ [79.3K]3 years ago
3 0

Answer:

-31

Step-by-step explanation:

a - 8x will change to (-7) - 8(3) = -31

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baherus [9]

The measure of both the interior angles are 70 and 110 degree.

<h3>What are Parallel Lines ?</h3>

Lines they never intersect with each other and the distance between them always remains same are called parallel lines.

It is given that

Line l and m are parallel lines and are intersected by a transversal ,n

Interior angles of the same side are (2x−8) degree and (3x−7) degree

Applying the property of interior angles of parallel lines

2x -8 + 3x - 7 = 180 degree

5x -15 = 180

5x = 195

x = 39 degree

Both the angles have measure of

2 * 39 - 8 = 70 degree

3 * 39 -7 = 110 degree

Therefore the measure of both the angles are 70 and 110 degree.

The complete question is

Two parallel lines l and m are cut by a transversal  n . If the interior angles of the same side of n are (2x−8) degree and (3x−7) degree  , find the measure of each of these angles.

To know more about Parallel Lines

brainly.com/question/16701300

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2 years ago
Find the distance between (-3,2) and (5, -6) using the distant formula.
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\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-3}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{-6})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[5-(-3)]^2+[-6-2]^2}\implies d=\sqrt{(5+3)^2+(-8)^2} \\\\\\ d=\sqrt{8^2+8^2}\implies d=\sqrt{2(8^2)}\implies d=8\sqrt{2}

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Some number was divided into 42. This quotient was then multiplied by 8,after which the resulting product was added to 10. Given
AURORKA [14]

Answer:

126

Step-by-step explanation:

In order to find the initial number, we need to create the expression that is being mentioned and solve for the initial value by applying the opposite expressions to isolate the variable.

(((x / 42) * 8) + 10) = 34   ... subtract 10 from both sides

((x / 42) * 8) = 24 ... divide both sides by 8

(x / 42) = 3  ... multiply both sides by 42

x = 126

Finally, we can see that the initial value was 126

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3 years ago
Rami is sketching drawings for his friends.He creates 5 sketches each hour.Write a ratio,in lowest terms ,that compares the numb
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Answer:

1:12 One sketch every 12 minutes. Four Easy Steps Below!

Step-by-step explanation:

The ratio will be sketches:minutes

*We try to find how many minutes it takes him to make 1 sketch, since it's asking for lowest terms!

  1. find the larger ratio= 5:60 *60 minutes in an hour, we're finding minutes! Convert one hour to minutes*
  2. 5:60....  Divide 60 by 5. *You're finding the time it takes for one sketch*
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