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Scorpion4ik [409]
2 years ago
11

Which expression is equivalent to 10k + 17 - 7j - 18 - 11k?

Mathematics
2 answers:
kodGreya [7K]2 years ago
7 0

Answer:

-7j-k-1

Step-by-step explanation:

Margarita [4]2 years ago
3 0

Answer:

C

Step-by-step explanation:

An equivalent expression is an expression which is equal to 10k + 17 - 7j - 18 - 11k. You can expand or simplify an expression to make an equivalent expression. Combine like terms to form a new equivalent expression. Like terms are terms which have the same base or variable.

10k + 17 - 7j - 18 - 11k

10k -11k + 17 - 18 - 7j                Move to group like terms together.

-k - 1 - 7j

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Triangle J K L is shown. Point N is the midpoint of side J L and point M is the midpoint of side K L. The length of J K is 19.6
Kruka [31]

The distance between points M and N according to the task content is; 9.8 meters.

<h3>What is the distance between points M and N?</h3>

From observation of the task content information; it can be deduced for a fact that the line segment MN which joins points M and N is parallel to the line JK. This follows from the fact that M and N are midpoints KL and JL respectively.

Hence, it follows that triangles NLM and JLK are congruent and by the ratio of corresponding sides equality;

NM/19.6 = 7.4/(2×7.4)

NM = 19.6/2 = 9.8 meters.

This follows from congruence theorems in which case, the ratio of corresponding sides of congruent triangles are equal.

Read more on congruent triangles;

brainly.com/question/1675117

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7 0
2 years ago
Make b the subject of the formula<br><br>A=1/2bh​
r-ruslan [8.4K]

Answer:

\blue{b = \dfrac{2A}{h}}

Step-by-step explanation:

A = \dfrac{1}{2}bh

Step 1. Switch sides.

\dfrac{1}{2}bh = A

Step 2. Since the fraction 1/2 multiplies b, multiply both sides by the reciprocal of 1/2 which is 2.

2 \times \dfrac{1}{2}bh = 2 \times A

bh = 2A

Step 3. Since h is multiplying b, and you want b alone, divide both sides by h.

\dfrac{bh}{h} = \dfrac{2A}{h}

Answer:

b = \dfrac{2A}{h}

4 0
2 years ago
Θ is in Quadrant III and cos^2 0= 1/4
pychu [463]
I think you mean to say \cos^2\theta=\dfrac14. If \theta is in the third quadrant, then \sin\theta and \cos\theta. Recall that


\sin^2\theta+\cos^2\theta=1\implies\sin\theta=\pm\sqrt{1-\cos^2\theta}

We expect \sin\theta to be negative, so we take the negative root. We end up with

\sin\theta=-\sqrt{1-\dfrac14}=-\dfrac{\sqrt3}2

We also know to expect \cos\theta, so

\cos\theta=\pm\sqrt{\dfrac14}\implies\cos\theta=-\dfrac12


By definition, we have

\cot\theta=\dfrac{\cos\theta}{\sin\theta}

and so

\cot\theta=\dfrac{-\frac12}{-\frac{\sqrt3}2}=\dfrac1{\sqrt3}
7 0
3 years ago
The 9-1-1 service fee on telecommunications bills is what type of tax?Select all that apply
AlexFokin [52]

Answer:

A, D, E

Step-by-step explanation:

Just took the test.

5 0
3 years ago
Find the vertex of this function <br> f(x)= x^2+4x-12
sergij07 [2.7K]
F(x) = x² + 4x - 12

x = -b/2a
x = -(4)/2(1)
x = -4/2
x = 2

f(x) = x² + 4x - 12
f(2) = (2)² + 4(2) - 12
f(2) = 4 + 8 - 12
f(2) = 12 - 12
f(2) = 0

The vertex of the function is (2,0).
7 0
3 years ago
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