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Rudik [331]
2 years ago
6

What is the value of 13x if x = −7?

Mathematics
1 answer:
Arisa [49]2 years ago
8 0

Answer: -91

Step-by-step explanation:

13x, x=-7

plug in the -7 to x

13(-7)

multiply

<h3>-91</h3>
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Find the midpoint of side EF. (4 points)
umka2103 [35]

Answer:

Midpoint of side EF would be (-.5,4.5)

Step-by-step explanation:

We know that the coordinates of a mid-point C(e,f) of a line segment AB with vertices A(a,b) and B(c,d) is given by:

e=a+c/2,f=b+d/2

Here we have to find the mid-point of side EF.

E(-2,3) i.e. (a,b)=(2,3)

and F(1,6) i.e. (c,d)=(1,6)

Hence, the coordinate of midpoint of EF is:

e=-2+1/2, f=3+6/2

e=-1/2, f=9/2

e=.5, f=4.5

SO, the mid-point would be (-0.5,4.5)

 

3 0
2 years ago
Another scale drawing of Jimmy's living room is shown below:
deff fn [24]

Answer:

last option

Step-by-step explanation:

Again, 1 cm represents 8 / 2 = 4 feet so the width is 4 * 4 = 16 and the length is 6 * 4 = 24.

5 0
3 years ago
A small telescope magnifies
WARRIOR [948]

The observatory telescope has 22 times the magnifying power compared to the small telescope.

Data;

  • small telescope = 150 times
  • large telescope = 3300

<h3>Division of Numbers</h3>

To solve this question, we have to divide the large telescope by the small telescope to calculate it's magnifying power.

x = \frac{3300}{150}=22

The magnification of the observatory telescope is 22 times greater or larger than the small telescope.

Learn more on division of numbers here;

brainly.com/question/7068223

4 0
2 years ago
The hypotenuse of a 45 degrees -45 degrees -90 degrees triangle measures 10 root of 5 in.
juin [17]

Answer:

5\sqrt{10}\ in

Step-by-step explanation:

<u><em>The question is </em></u>

Find the measure of the legs

we know that

In a 45 degrees -45 degrees -90 degrees triangle, the measure of the legs are equal

Let

a ----> the measure of one leg

Applying the Pythagorean Theorem

(10\sqrt{5})^2=a^2+a^2

solve for a

500=2a^2

Divide by 2 both sides

a^2=250

a=\sqrt{250}\ in

Simplify

a=5\sqrt{10}\ in

3 0
3 years ago
4x+10=-26 two-step equation
Nana76 [90]

Answer:

x = -9

Step-by-step explanation:

4x+10=-26

Subtract 10 from each side

4x+10-10=-26-10

4x = -36

Divide each side by 4

4x/4 = -36/4

x = -9

7 0
2 years ago
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