3 years ago

Classify the triangle based on the side lengths 9, 40 and 41.

Mathematics

1 answer:

artcher [175]3 years ago

8 0

Answer: right triangle

Step-by-step explanation: 9, 40, and 41 are examples of Pythagorean triples.

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What is the length of line segment KJ?

Karolina [17]

Please consider the attached file.

We can see that triangle JKM is a right triangle, with right angle at M. Segment KM is 6 units and segment MJ is 3 units. We can also see that KJ is hypotenuse of right triangle.

We will use Pythagoras theorem to solve for KJ as:

$KJ^2=KM^2+MJ^2$

$KJ^2=6^2+3^2$

$KJ^2=36+9$

$KJ^2=45$

Now we will take positive square root on both sides:

$\sqrt{KJ^2}=\sqrt{45}$

$KJ=\sqrt{9\cdot 5}$

$KJ=3\sqrt{5}$

Therefore, the length of line segment KJ is $3\sqrt{5}$ and option D is the correct choice.

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3 years ago

9. In City A, the temperature rises 9 from 8 A.M. to 9 A.M. Then the temperature drops 8 from 9 A.M. to 10 A.M. In City B, the t

sammy [17]

Answer:

B. 8 + (-7)

Step-by-step explanation:

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3 years ago

The table shows the predicted growth of particular bacterium after various numbers of hours. Write an explicit formula for the s

Oksana_A [137]

Answer:

-29

Step-by-step explanation:

Problem 1

In the first hour, the number of bacteria is 22

In the second hour,the number of bacteria is 44

It looks like the formula is some multiple of 22

That means you should pick D

Problem 2

n = 12

a = 15

d = - 4

an= 15 + (n - 1)*d

a12 = 15 + 11*(-4)

a12 = 15 - 44

a12 = - 29

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3 years ago

6th grade math I mark as brainliest

anygoal [31]

Answer:

you should put true

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Which angle is complementary to <1?

Brrunno [24]

Answer:

I don't know sorry but have a nice time answering this question

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2 years ago