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3 years ago

@kaysaja2004 2 + 2x = 10

Mathematics

2 answers:

antoniya [11.8K]3 years ago

6 0

Answer:

x=4

Step-by-step explanation:

Isolate the variable, then check.

2 x 4=8

2+8=10

Vitek1552 [10]3 years ago

3 0

Answer:

x=4

Step-by-step explanation:

2 + 2x = 10

Subtract 2 from each side

2-2+2x = 10-2

2x = 8

Divide by 2

2x/2 = 8/2

x=4

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in quadrilateral ABCD, AE=x+10, and BE=3x-18. for what value of x is ABCD a rectangle? a.24 b.14 c.18 d.16

Evgen [1.6K]

Answer:

for x = 14, the given ABCD is a RECTANGLE.

Step-by-step explanation:

Given : ABCD is a quadrilateral.

E is the intersection points of the diagonal AC and BD.

AE = x+10, and BE= 3x -18

Now, as we know:

IN A RECTANGLES , DIAGONALS BISECT EACH OTHER.

⇒ E is the mid point of AC and BD respectively.

⇒ AE = BE

⇒ x+10 = 3 x - 18

or, 10 + 18 = 3 x - x

or, 2 x = 28

or, x = 28/2 = 14 ⇒ x = 14

Hence, for x = 14, the given ABCD is a RECTANGLE.

4 0

3 years ago

The measure of an angle is seventeen times the measure of a supplementary angle. What is the measure of each angle?

blagie [28]

Supplementary angles are two angles that when add equal 180 degrees.
The supplement of an angle is 180 - n.

n = 17(180 - n)
n = 3060 - 17n
n + 17n = 3060
18n = 3060
n = 3060/18
n = 170

so the unknown angle (n) = 170 degrees and its supplement = (180 - 170 = 10)......= 10 degrees.

3 0

3 years ago

Read 2 more answers

The graph of relation r is shown. Which of the following graphs represents the relation and it’s inverse

ehidna [41]

Answer:

To easily solve this question, we must realize that the graph of the relation is very similar to that of the expression

y = √(x-a) , where a>0

If we take a look at the image attached, we have plotted the graph of

y = √(x-1) , and its correspondent inverse function.

This means that the answer is the first option