19) Solve the system,
*****
x + 3y - 5
-2x + 2y = 14

Answers

Answer 1
Answer:

Answer:

y = 3

x = -4

Step-by-step explanation:

Hopefully the first equation is x + 3y = 5

x = 5 - 3y

Plug in:

-2(5 - 3y) + 2y = 14

-10 + 6y + 2y = 14

8y = 24

y = 3

x = -4


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Which ordered pair is a solution of the equation? y=-2x+5y=−2x+5 (Choice A) A Only (2,-9)(2,−9) (Choice B) B Only (-2,9)(−2,9) (Choice C) C Both (2,-9)(2,−9) and (-2,9)(−2,9) (Choice D) D Neither

A 12 SIDED DIE WITH SIIDES LABLELED 1-12 ARE ROLLED ONCE. EACH NUMBER IS LIKELY TO BE ROLLED .WHAT IS THE PROBABILITY OF ROLLING A NUMBER GREATER THAN 10

Answers

Answer:

p=.1666

11 or 12

2 out of 12

2/12

1/6

p=.1666

Step-by-step explanation:

Solve the algebraic expression n + 8, if n = 15

Answers

you mean evaluate

n+8
if n=15
15+8=
10+5+8=
10+3+2+8=
13+10=
23
plug in 15 so n+8 ...15+8=23

Simplify √6+3√6
18√2

4√36

18

4√6

Answers

Answer:

Step-by-step explanation:

√6 + 3√6 = 4√6

Hope this helps

plz mark as brainliest!!!!!!

A study is under way in Yosemite National Forest to determine that adult height of American pine trees. Specifically, the study is attempting to determine what factors aid a tree in reaching heights greater than 60 feet tall. It is estimated that the forest contains 25,000 adult American pines. The study involves collecting heights from 250 randomly selected adult American pine trees and analyzing the results. Identify the population from which the study was sampled

Answers

Answer:

The 25,000 adult American pine trees in the forest.

Step-by-step explanation:

Consider the provided information.

It is given that the forest contains 25,000 adult American pines. The study involves collecting heights from 250 randomly selected adult American pine trees and analyzing the results.

A population is the set of data which includes all of the elements. If one or more observations are drawn form the population then it called a sample.

Here the population is 25,000 adult American pines.

Thus, the required answer is: The 25,000 adult American pine trees in the forest.

If CD = EF, then CD ≅ EFDefinition of Congruence
Reflexive Property
Symmetric Property
Definition of Midpoint
Help quickly

Answers

Answer:

Definition of congruence

Step-by-step explanation:

According to this

If two sides are equal then they are ought to be congruent.

Here

CD is equal to EF

  • It means both have same lengths

Hence they are congruent

Final answer:

Based on the Definition of Congruence in mathematics, if two line segments are of equal lengths, then they are said to be congruent. So if CD = EF, then CD is congruent to EF (CD ≅ EF).

Explanation:

In this context, if CD = EF, then CD is indeed congruent to EF, written as CD ≅ EF.

This is based on the Definition of Congruence in mathematics, specifically geometry, which states that two objects (in this case, line segments) are congruent if they have the exact same size and shape, or, for line segments, the same length. So, if the lengths of two line segments are equal (CD = EF), then they are congruent (CD ≅ EF).

Learn more about Congruence here:

brainly.com/question/31992651

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What is a variable term in mathematics?

Answers

A variable is a symbol for a unknown number. It does not have a fixed number. In fact, it could be any number until you find out what it is in a equation. Or, you can never find out what it is. Yes, it is conserved a term. Hope this helped!