Anyone know questions 9 and 10

Mathematics

2 answers:

Scilla [17]3 years ago

8 0

9. Constants are the value that stays the same and cannot be changed, other words, it does not contain a variable.
In the equation, 15 does not have a variable.

Solution: B. 15

10. Perimeter is all the side lengths combined; add them all up.
(4x - 10) + (2x + 6) + 5x
Combine the like terms
11x - 4 units

Solution: H. (11x-4) units

leva [86]3 years ago

4 0

Answer:

8.j 9.b 10.f 11.a

Step-by-step explanation:

you welcome

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Trigonometry

Alla [95]

90° is equal to $\frac{\pi}{2}$ or 1.5707 radians.

Step-by-step explanation:

Step 1:

If an angle is represented in degrees, it will be of the form x°.

If an angle is represented in radians, it will be of the form $\frac{\pi}{x}$ radians.

To convert degrees to radians, we multiply the degree measure by $\frac{\pi}{180}$ .

For the conversion of degrees to radians,

the degrees in radians = (given value in degrees)( $\frac{\pi}{180}$ ).

Step 2:

To convert 90°,

$90 (\frac{\pi}{180} ) = \frac{\pi}{2}.$

$0.5 \pi = 1.5707$ radians.

So 90° is equal to $\frac{\pi}{2}$ or 1.5707 radians.

3 0

3 years ago

Question 11 of 25

malfutka [58]

Answer:

Step-by-step explanation:

simple : when we have a point defined as (1, 4), it means x = 1, y = 4.

and since the point is on the graph of a function/equation it means that when we use x = 1 and calculate the equation, we get 4 as result (= y). so yes, that means that both sides of the "=" sign are indeed equal for this pair of values, which makes the equation true.

but there will be usually many other pairs that do that too.

4 0

3 years ago

Evaluate the expression.

chubhunter [2.5K]

um is this all one equation?

like -2.2×(-2)÷(-14)×5-2.2×(-2)÷(-41)×5?

4 0

2 years ago

The length of a shadow of a building is 28 m. The distance from the top of the building to the tip of the shadow is 32 m. Find t

True [87]

Check the picture below.