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andriy [413]
3 years ago
7

Find the value of x if sin(3x−4)=cos(9x−50) A.x=3 B.x=5 C.x=12 D.x=8

Mathematics
1 answer:
lidiya [134]3 years ago
8 0
I think the answer is B x=5
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The heights of five-year-olds are Normally distributed with a mean of 42.5 inches and a standard deviation of 2.5 inches. A rand
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0.63

Step-by-step explanation:

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Please help. I really need help with this so please help.
Flauer [41]

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5x ≥ 1y

Step-by-step explanation:

The number key chains is 8 times the number of thumb drives. She wants to use at least 5 times at many.

4 0
3 years ago
Need help asap please!!
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Answer:

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Step-by-step explanation:

\displaystyle 4p = p + 69 → -69 = -3p; 23 = p

I am joyous to assist you at any time.

6 0
3 years ago
Find k so that the three equations 3x-y=2, 2x+8=3y, and y=kx have a common solution
andriy [413]
2x+8=3kx (3k-2)x+8=0
3x-kx=2. (3-k)x-2=0
3k-2)x+10=3-k)x
4k-5=10/x
///////
3x-y-2=2x+8-3y
X+2y-10=0
X+2kx-10=0
K=(10-x)/2x
8 0
3 years ago
(25pts) Due soon! Help!
navik [9.2K]

Answer:

true

True

False

False

Step-by-step explanation:

a. The problem tells me that for every 3 parts of red paint, I have 8 parts of yellow paint. To find the ratio of 1 part of yellow paint I can write the following statement

For 8 parts of yellow paint ------------ 3 parts of red paint

        1 part of yellow paint  -------------      x

So x=\frac{1 part of yellow paint * 3 parts of red paint }{8 parts of yellow paint}

x= \frac{3}{8} parts of red paint

b, I have the following relationship

3 parts of red paint ----- 8 parts of yellow paint

If I multiply the entire expression by 3 I have left

3 * 3 parts of red paint -------- 8 * 3 parts of yellow paint

So

9 parts of red paint ---------- 24 parts of yellow paint

c.I have the same relationship

3 parts of red paint ----- 8 parts of yellow paint

If I multiply the entire expression by 1/2 I have left

3/2 parts of red paint -------- 8/2 parts of yellow paint

So

3/2 parts of red paint ---------- 4 parts of yellow paint

as 3/2 is different from 10, then the approach is false

d. observing the relation of part a,

For 3 parts of red paint ------------ 8 parts of yellow paint

      1 part of red paint   -------------      x

So x=\frac{1 part of red paint * 8 parts of yellow paint }{3 parts of red paint}

x= \frac{8}{3} parts of yellow paint  that is different than 3/8 parts of yellow paint, then the approach is false

6 0
3 years ago
Read 2 more answers
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