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DerKrebs [107]
2 years ago
7

5th grade math. correct answer will be marked brainliest

Mathematics
2 answers:
irina1246 [14]2 years ago
7 0

Answer:

sorry but the picture if you put one on here isn't showing up maybe Repost and I could answer

gulaghasi [49]2 years ago
7 0
Where is the question
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Find the line of reflection if the image of (-5,-2) is each of the following?
just olya [345]

Answer:

the reflection would be (5,2)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Is it true that the sum of two repeating decimal is always repeating decimal​
Murljashka [212]

Answer:

no. it isn't necessary.

Step-by-step explanation:

there are some cases where adding two repeating decimals results in a sum which does not have a repeating decimal. For example,  

1 over 3

+

2 over 3  

=

3 over 3  

=1

. Thus, the sum of two repeating decimals is not always a repeating decimal.

8 0
3 years ago
please help as soon as possible-Solve the right triangle shown in the figure. WIll mark brainliest to first correct answer
Dennis_Churaev [7]

Answer:

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

Step-by-step explanation:

From my understanding, we have to find angle A, angle B and side AB.

<u>Step 1: Find side AB</u>

<em>AB can be solved through the Pythagoras theorem.</em>

<em>c² = a² + b²</em>

<em>c² = 2.7² + 1.1²</em>

<em>c² = 8.5</em>

<em>c = √8.5</em>

c = 2.9 cm

<u>Step 2: Find angle A</u>

<em>Angle A can be found through tan formula</em>

<em>tan (angle) = opposite/adjacent</em>

<em>tan (angle A) = BC/AC</em>

<em>tan (angle A) = 2.7/1.1</em>

<em>Angle A = tan inverse (2.7/1.1)</em>

Angle A = 68°

<u>Step 3: Find angle B</u>

<em>All 3 angles of a triangle are equal to 180°</em>

<em>Angle A + Angle B + Angle C = 180°</em>

<em>68 + B + 90 = 180°</em>

Angle B = 22°

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

!!

6 0
3 years ago
A scientist who studies sleep has developed a new technique to help people sleep each night. He
Andru [333]

Considering the situation described, the scientist's null and alternative hypothesis are described by:

Null hypothesis H_0: \mu = 0; Alternative hypothesis H_1: \mu \neq 0.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by \mu is of 0, hence:

H_0: \mu = 0

At the alternative hypothesis, it is tested if there is a difference, hence:

H_1: \mu \neq 0

More can be learned about an hypothesis test at brainly.com/question/26454209

7 0
2 years ago
Write an equation for the line (4,7) and ( 1,1)2. Write an equation for the graph
Nastasia [14]

ANSWER:

y=2x-1

STEP-BY-STEP EXPLANATION:

We have that the equation in its slope-intercept form is the following:

\begin{gathered} y=mx+b \\ m\text{ is the slope and b is the y-intercept } \end{gathered}

The slope can be calculated as follows:

m=\frac{y_2-y_1}{x_2-x_1}

We use the points (4,7) and (1,1) to calculate the slope:

m=\frac{1-7}{1-4}=\frac{-6}{-3}=2

Now, we calculate the value of b, using the point (1,1) and the slope, like this:

\begin{gathered} 1=1\cdot2+b \\ b=-2+1 \\ b=-1 \end{gathered}

Therefore, the equation would be:

y=2x-1

5 0
1 year ago
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