3 years ago

PLEASE SHOW WORK AND SIMPLIFY

Mathematics

1 answer:

BabaBlast [244]3 years ago

5 0

Answer:

Step-by-step explanation:

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Please help me out :)

arlik [135]

Answer:

$\frac{\sqrt{17} }{7}$

Step-by-step explanation:

Using the Pythagorean identity

sin²x + cos²x = 1, then

sinx = $\sqrt{1-cos^2x}$

Note that ( $\frac{4\sqrt{2} }{7}$ )² = $\frac{32}{49}$

sinΘ = $\sqrt{1-(32/49)}$

= $\sqrt{\frac{17}{49} }$ = $\frac{\sqrt{17} }{7}$

5 0

3 years ago

F(7)=3/x+2-squar root x-3

leonid [27]

Insert x = 7
so 3/(7+2) - sqr (7-3)
=3 / (9) - sqr (4)
= 1/3 - 2
=1/3 - 6/3
= -5/3

8 0

3 years ago

PLEASE HELP FAST THANKS :)

Paladinen [302]

Answer:

x, y = 0.10

Step-by-step explanation:

5 0

3 years ago

Consider the normal distribution curve. A graph shows the horizontal axis numbered 50 to 78. There is no vertical axis. Variance

nikdorinn [45]

Answer:

The variance of the data is 49.

The median is 64.

The data point 50 is two standard deviations away from the mean.

Step-by-step explanation:

Took it on EDGE. Hope you pass!

5 0

3 years ago

Read 2 more answers

so on khan academy we have this question and it makes NO SINCE! it says "start with the number 2380. divide by 10. the number wi

grigory [225]

Answer:

B) Hundreds

Step-by-step explanation:

The number 238 is in the hundreds as the first digit is in the hundreds. You can tell because you say "two hundred."

Hope this helps

7 0

3 years ago