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hoa [83]
3 years ago
13

What is the domain of

Mathematics
1 answer:
ddd [48]3 years ago
4 0
All real numbers is the correct answer
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In triangle ABC, angle a and b are complementary, where the cos A= 0.5. What is the angle measure of B in degrees?
aleksley [76]

Angle B measures 30 degrees.

Step-by-step explanation:

Step 1:

If two angles are complementary, the sum of the two angles will equal 90°.

So if angles A and B are complementary, the sum of the angles A and B will equal 90°.

It is given that cos A = 0.5, we can determine the value of A by taking the cos inverse of the value 0.5.

Step 2:

If cos A = 0.5, A = cos^{-1} (0.5) = 60^\circ. So angle A is 60°.

As A and B are complementary, angle A + angle B = 90°.

So 60° + angle B = 90°, angle B = 90° - 60° = 30°.

So angle B measures 30° while angle A measures 60°.

8 0
3 years ago
Read 2 more answers
HELP
cupoosta [38]

Answer:

y=-2x+7

Step-by-step explanation:

slope intercept form is equal to y=mx+c

where y is the y value

x is the x value

m is the gradient

and c is the y intercept

so the equation for this set of values is equal to

y=-2x+7

7 0
3 years ago
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A building across the street casts a shadow that is 2424 feet long. Your friend is 66 feet tall and casts a shadow that is 44 fe
salantis [7]
If 66 feet is a typo for 6 feet, then the answer is 330 feet long. Multiply 6•7.34= 44.04 round to 44. 2424/7.34= 330.245 round to 330. This is the height of the building.

If there is no typo 66/3= 22•2= 44

2424/3= 808•2= 1,616 feet tall.
8 0
3 years ago
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Is 168/54 in simplest form?
Brut [27]
No, because both can be divided by two. in simplist form it is 3 1/9
6 0
3 years ago
David is writing an explicit function for the arithmetic sequence:
pantera1 [17]

Answer: C

n > 1 where n is an integer

4 0
3 years ago
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