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3 years ago

Negative six plus twenty-one equal what

Mathematics

2 answers:

natali 33 [55]3 years ago

5 0

Answer:

Step-by-step explanation: you can move around the equation from -6+21

to 21-6 and still get the same answer

wlad13 [49]3 years ago

3 0

Answer:

-6+21 = 15

15 is the answer because you subtract and then put the greater no. sign.

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Select the graph that would represent the best presentation of the solution set.<br> \absP > 3

m_a_m_a [10]

Answer:

Step-by-step explanation:

there's no graph selection attached. Can you upload it and then I can help?

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2 years ago

What is the solution of y − 4x = 0 and 3x + 6y = 9?

Elden [556K]

You solve this by plugging one equation into the other. Usually you have to rewrite one equation to make this work. In this case I choose to rewrite y-4x=0 as y=4x.

After plugging it into the second, you get:

3x + 6*4x = 9 => 27x = 9 => x=1/3

Putting this solution back into y=4x gives us y=4/3

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3 years ago

The ratio of blue shoes to green shoes is 5:2.

ValentinkaMS [17]

Answer:

Step-by-step explanation:

6 * 5 is 30 6*2 is 12

7 0

3 years ago

Read 2 more answers

Which ordered pairs are in the solution set of the system of linear inequalities? y > Negative one-thirdx + 2 y < 2x + 3

Natasha2012 [34]

Answer:

Option ( A ) is the answer at (2, 2), (3, 1), (4, 2)

Step-by-step explanation:

3 0

3 years ago

2. Use the following picture for this question:

Art [367]

Answer:

a. $24\sqrt{3}$ and 41.6

b. 52.1

Step-by-step explanation:

Considering the left side triangle the blue dotted side is the side "opposite" to the angle given and the side 24 is the side that is "adjacent" to the angle given. The trigonometric ratio tan relates opposite to adjacent. Also, let the blue dotted side be y.

<u>Note:</u> the exact value of tan 60 is $\sqrt{3}$

Thus, we can write $Tan(60)=\frac{y}{24}\\y=24*Tan(60)\\y=24*\sqrt{3} \\y=24\sqrt{3}$

Approximate value (rounded to nearest tenth): $24\sqrt{3} =41.6$

Considering the triangle to the right, the side "opposite" to the angle given (53 degrees) is 41.6 (just found in part (a)) and the side "hypotenuse" (side opposite to 90 degree angle) is x. The trigonometric ratio sine relates opposite and hypotenuse.

Thus we can write and solve:

$Sin(53)=\frac{41.6}{x}\\x=\frac{41.6}{Sin(53)}=52.1$

4 0

3 years ago