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3 years ago

3 over 5 to the power of 2 + 4 × 3 − 2

Mathematics

2 answers:

dsp733 years ago

6 0

( ---- )^2 + (4*3) - 2

becomes

---- + 12 -2 following order of operations rules (PEMDAS)

Combining the last 2 terms, we get 10. The final answer is

9/25 + 10, or 10 9/25, or 10.36.

frozen [14]3 years ago

6 0

The 2 over 4 makes to be 10.36

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Kathy goes to a Halloween store that is closing for the season, so everything is 60% off of the original price.

julsineya [31]

Answer:D

Step-by-step explanation:

7 0

2 years ago

Which is greater 16/25 or 65%

sesenic [268]

65 % is bigger than 16/25

5 0

3 years ago

Read 2 more answers

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.

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

6 0

3 years ago

Area of Composed Figures - Quiz-Level G

4vir4ik [10]

The number of square feet of the carpet is the area of the carpet

The number of square feet of outdoor carpet is 32 feet

<h3>How to determine the number of square feet</h3>

To do this, we simply divide the carpet to regular shapes.

The outdoor carpet can be divided to the following shapes from top to bottom

Rectangle of 4 ft by 2 ft
Rectangle of 6 ft by 2 ft
Rectangle of 6 ft by 2 ft

So, the area of the outdoor carpet is:

Area = 4 * 2 + 6 * 2 + 6 * 2

This gives

Area = 32

Hence, the number of square feet of outdoor carpet is 32 feet