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SVETLANKA909090 [29]
3 years ago
9

Can someone help me with the answer to this?? I don't understand it at all.

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
3 0
Figure A represents the Pythagorean Theorem
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Plz Help, and solve. Show your work. I will give Brainliest. A - 7 = -13 solve and show your work 10X - 8 = 9X + 8 Can a right t
likoan [24]

Answer:

A - 7 = -13

Add 7

A = -6

10X - 8 = 9X + 8

Add 8

10X = 9X + 16

Subtract 9X

X = 16

In a right triangle, where a and b are the shorter sides, and c is the longer side a^2+b^2=c^2

Thus, plug in the values.

12^2+16^2=20^2

144+256=400

400=400.

Because the equation is true, 12, 16, and 20 can be a right triangle

<em>Hope it helps <3</em>

3 0
3 years ago
Read 2 more answers
The following equation is given.
SashulF [63]

5x² - 9x + 45 = 0

Δ = b² - 4.a.c

Δ = (-9)² - 4 . 5 . 45

Δ = 81 - 4. 5 . 45

Δ = -819

There's no real root.

7 0
3 years ago
Write an equation for the graph. *slope intercept form*​
Dennis_Churaev [7]

Answer:

y = 3x - 4

Step-by-step explanation:

The line crosses the y-axis at -4. The line goes 3 down and 1 left.

8 0
3 years ago
a coin is tossed 3 times. what is the probability of getting heads on the first toss, heads on the second toss, and tails on the
Salsk061 [2.6K]

Answer:

There are 2^3 = 8 possible outcomes after tossing a fair coin fairly 3 times. The 8 possible outcomes are: TTT, HTT, THT, TTH, HHT, HTH, THH, HHH. Exactly 2 of 8 possible outcomes result in 3 of the same faces showing up.

Step-by-step explanation:

3 0
3 years ago
complete the concept map by naming the sampling that you have learned in this module then briefly discuss each
Dmitry [639]

In systematic sampling, individuals are selected at regular intervals from the sampling frame.

<h3>How to explain the sampling?</h3>

Stratified sampling- In this method, the population is first divided into subgroups (or strata) who all share a similar characteristic

<u>Clustered sampling.</u>- a clustered sample, subgroups of the population are used as the sampling unit, rather than individuals. The population is divided into subgroups, known as clusters, which are randomly selected to be included in the study

<u>Simple random sampling. </u>-In this case each individual is chosen entirely by chance and each member of the population has an equal chance, or probability, of being selected.

Quota sampling--This method of sampling is often used by market researchers. Interviewers are given a quota of subjects of a specified type to attempt to recruit.

Learn more about sampling on:

brainly.com/question/17831271

#SPJ1

6 0
2 years ago
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