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2 years ago

Simplify each expression (Please)

Mathematics

1 answer:

rewona [7]2 years ago

3 0

2(p+8)+4= 2p+20

(18+ t)(-3)+9=t+24

30q(2)=60q

-5(n+16)-7= -5n-87

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Write and equivalent exspression to 8k-(5+2k) without parentheses then simplify

Nezavi [6.7K]

Answer:

6k - 5

Step-by-step explanation:

8k-(5+2k)

8k -5 -2k

6k - 5

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3 years ago

Read 2 more answers

Question 2 of 10

iVinArrow [24]

Answer:

option C is correct

x^4 - x^2 - 2.5

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3 years ago

Write the rate as a unit rate. 44 points in 4 quarters

Margaret [11]

Answer:

44 p points in 4 quarters = llets per Qtr.

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3 years ago

Use the diagram to complete the statement. Triangle J K L is shown. Angle K J L is a right angle. Angle J K L is 52 degrees and

zzz [600]

Answer:

$\bold{sin(38^\circ)=cos(52^\circ)}$

Step-by-step explanation:

Given that $\triangle KJL$ is a right angled triangle.

$\angle JKL = 52^\circ\\\angle KLJ = 38^\circ$

and

$\angle KJL = 90^\circ$

Kindly refer to the attached image of $\triangle KJL$ in which all the given angles are shown.

To find:

sin(38°) = ?

a) cos(38°)

b) cos(52°)

c) tan(38°)

d) tan(52°)

Solution:

Let us use the trigonometric identities in the given $\triangle KJL$ .

We have to find the value of sin(38°).

We know that sine trigonometric identity is given as:

$sin\theta =\dfrac{Perpendicular}{Hypotenuse}$

$sin(\angle JLK) = \dfrac{JK}{KL}\\OR\\sin(38^\circ) = \dfrac{JK}{KL}$ ....... (1)

Now, let us find out the values of trigonometric functions given in options one by one:

$cos\theta =\dfrac{Base}{Hypotenuse}$

$cos(\angle JLK) = \dfrac{JL}{KL}\\OR\\cos(38^\circ) = \dfrac{JL}{KL}$ ....... (2)

By (1) and (2):

sin(38°) $\neq$ cos(38°).

$cos(\angle JKL) = \dfrac{JK}{KL}\\OR\\cos(52^\circ) = \dfrac{JK}{KL}$ ...... (3)

Comparing equations (1) and (3):

we get the both are same.

$\therefore \bold{sin(38^\circ)=cos(52^\circ)}$

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3 years ago

How do you change 44/15 into a mixed number

torisob [31]

First you can divide 44 into 15, which is two with a remainder of 14 so that means the mixed number would be 2 and 14/15
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3 years ago