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3 years ago

Determine which of the following relationships is true.

Mathematics

1 answer:

Nikolay [14]3 years ago

7 0

Answer:

DE is parallel to AC

DE = 2AC

<h3>Explanation </h3>

In triangle ABC, BD = AD

BE = EC

D is mid point of AB

E is the mid point of AC

According to the mid point theorem, ( The line segment in a triangle joining the midpoint of two sides of the triangle is said to be parallel to its third side and is also half of the length of the third side.”) DE is parallel to AC and equal to half of it

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Write “2/3x-1/3y=2” in standard form

jenyasd209 [6]

Answer:

2x-y=2

Step-by-step explanation:

first, the easiest thing to do is multiply the whole thing by 3, since the fractions's denominators are the same.

you should get:

2x -y = 2

standard form formula = Ax + By = C

so luckily, the equation above we just solved is already in standard form after multiplying everything by 3

remember that in standard form, A cannot be negative, and we can't have any fractions in the equation

7 0

4 years ago

<img src="https://tex.z-dn.net/?f=10%20%7Bx%7D%5E%7B2%7D%20-%206%20%3D%20144%20" id="TexFormula1" title="10 {x}^{2} - 6 = 144 "

Juli2301 [7.4K]

Answer:

$\large\boxed{x=\pm\sqrt{13}}$

Step-by-step explanation:

$10x^2-6=144\qquad\text{add 6 to both sides}\\\\10x^2=130\qquad\text{divide both sides by 10}\\\\x^2=13\to x=\pm\sqrt{13}$

5 0

4 years ago

Find the circumference of the circle

Ann [662]

C = 8 x pi
C = 8 x 3.14
C = 25.12

3 0

3 years ago

Every evening Jenna empties her pockets and puts her change in a jar. At the end of the week she counts her money. One week she

Sergeeva-Olga [200]

A) .10 d + .25 q = 7.75
B) d + q = 40

Multiplying B) by -.10
B) -.10d -.10q = -4.0
Then adding this to A)
A) .10 d + .25 q = 7.75
.15q = 3.75

Quarters = 25
Therefore, dimes = 15
***************************************************
Double-Check
A) .10 d + .25 q = 7.75
A) .10 * 15 d + .25 * 25 = 7.75
A) 1.50 + 6.25 = 7.75

Correct!!

6 0

3 years ago

Answer Today Please! No Links or empty Answers... or it'll break my brainly... if not then it will just be deleted... im serous,

Vitek1552 [10]

The answer is C because the square root equals to 2.8 and it is the closest one to the point shown

6 0

3 years ago

Read 2 more answers