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Elanso [62]
3 years ago
12

Find the surface area of the prism 2ft 1ft 3ft and 2.2ft

Mathematics
1 answer:
umka21 [38]3 years ago
5 0
<span>Which sequence is not equivalent to the others:

1. a reflection across the y axis, fallowed by a reflection across the x axis, then a 90 degree clockwise rotation about the origin 

2. a 90 degree clockwise rotation about the origin  and then a 180 degree clockwise rotation about the origin

3. a reflection  across the  x axis, fallowed by a 90 degree counterclockwise rotation about the origin,and a reflection across the x axis

4. a 90 degree counterclockwise rotation about the origin

</span>
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Which of the following is equivalent to cos x?
Otrada [13]

ANSWER

D) sin Y

EXPLANATION

The given triangle is a right triangle.

This implies that that:

x + y = 90 \degree

Then we have

y= 90 - x

Recall that

\cos(x)  =  \sin(90 - x)

But

90 - x = y

When we do the substitution, we get,

\cos(x)  =  \sin(y)

Therefore cos(x) is a equivalent to sin(y).

The correct answer is D.

3 0
3 years ago
if 4 people want tk use a canoe that can only hold up to 800 pounds and they have 60 pounds of gear, what must the average weigh
bekas [8.4K]

Answer:

185 pounds

800 - 60 = 740

740 ÷ 4 = 185

6 0
3 years ago
What is the volume (in cubic feet) of the composite shape rounded to the nearest whole number?
Dmitriy789 [7]

Answer:

Peppa does not know

Step-by-step explanation:

5 0
3 years ago
Answer with A B C D. Correct answer gets brainlest.
oksian1 [2.3K]

Answer:

A

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve the equation. And write all solutions in general form.
Amiraneli [1.4K]

Answer:

x = pi/2 + 2 pi n                            x = pi + 2 pi n   where n is an integer

x = 5pi /3 + 2 pi n                      

Step-by-step explanation:

8 cos^2 x + 4 cos x-4 = 0

Divide by 4

2 cos^2 x +  cos x-1 = 0

Let u = cos x

2 u^2 +u -1 =0

Factor

(2u -1) ( u+1) = 0

Using the zero product property

2u-1 =0    u+1 =0

u = 1/2      u = -1

Substitute cosx for u

cos x = 1/2    cos x = -1

Take the inverse cos on each side

cos ^-1(cos x) = cos ^-1(1/2)   cos ^-1( cos x) =cos ^-1( -1)

x = pi/2 + 2 pi n                            x = pi + 2 pi n   where n is an integer

x = 5pi /3 + 2 pi n                      

8 0
3 years ago
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