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Alchen [17]
3 years ago
7

Solve the following system for y: 2x – 15y = –10 –4x + 5y = –30

Mathematics
1 answer:
Mamont248 [21]3 years ago
4 0
Y=x-10/5 hope i help
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xxMikexx [17]
The answer is -2a^4+4a^2b^2+5b^2a%
4 0
3 years ago
How to determine the smallest absolute value
alexandr1967 [171]
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7 0
3 years ago
Identify the error by providing a brief description. Then, complete the problem correct
Ipatiy [6.2K]

Answer:

True answer: -24

Step-by-step explanation:

<em><u>Showing the error</u></em>

-16-2(-2) – 12   First you need to multiply

8(-2) - 12   The error here is that the wrong numbers are multiplied together

-16-12    Add the negatives together

-28​  Your answer (the incorrect one)

<em><u /></em>

<em><u>The correct way of solving it</u></em>

-16 -2(-2) - 12  Multiply into the parenthesis

-16 + 4 -12   Add the first two numbers

-12 - 12  Add the numbers together

-24  The answer

8 0
3 years ago
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your
Mila [183]

The critical value of r is mathematically given as r = +0.487, with no significant linear correlation. Option A.

<h3>What are the critical values of r?</h3>

Question Parameters

r = -0.868

n = 5

df = 5 - 2

df = 3

\alpha / 2 =0.025

Critical values r= \pm 0.878

Generally, there exists no linear correlation between the Critical values

as r=0.878

In conclusion,  Critical values: r = +0.487, no significant linear correlation

Read more about Critical values

brainly.com/question/14508634

#SPJ1

5 0
2 years ago
Will mark brainliest! The triangles shown below must be congruent, true or false
olchik [2.2K]
True because they have the same size angles
8 0
3 years ago
Read 2 more answers
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