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luda_lava [24]
3 years ago
5

If sin x = .21, what is cos x

Mathematics
1 answer:
nika2105 [10]3 years ago
6 0
0.999993283193413 is the answer. You may have to round.
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How do you do the question of 50%of 50 in math like how would you solve it
AveGali [126]

Answer:

25

Step-by-step explanation:

50% is half of something. half of 50 is 25.

Also there is another way to do it. 50/100 = 50%.

50/100 x 50 = 2500/100 = 25.  or 50/100 = 1/2. 1/2 x 50 = 50/2 = 25.

4 0
3 years ago
Use slopes and y-intercepts to determine if the lines 10x+3y=−3 and 5x−4y=−3 are parallel.
kvasek [131]

Answer:

They are not parallel

Step-by-step explanation:

original equation

10x + 3y = -3

subtract 10x

3y = -10x - 3

divide by 3

y = -10/3x - 1

original equation

5x - 4y = -3

subtract 5x

-4y = -5x-3

divide by -4

y = 5/4x + 3/4

the slopes are not equal to each other (5/4x and -10/3x) so they are not parallel

4 0
2 years ago
I need the answer fast please​
Rainbow [258]
Substitute each value of x in y=2x-3

so,

first box (-2)
y= 2(-2)-3
y= -4-3
y= -7

second box (0)
y= 2(0)-3
y= 0-3
y= -3

third box (3)
y=2(3)-3
y=6-3
y=3
6 0
3 years ago
Read 2 more answers
What is the value of the expression below when X=5 6x+5
Molodets [167]

Answer:

35

Step-by-step explanation:

6 x 5 = 30

30 + 5 = 35

6 0
3 years ago
Read 2 more answers
In math how do i graph the shapes doing both reflection and translation?
love history [14]

Answer:

I'm sorry my dude can't help you ther

3 0
3 years ago
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