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3 years ago

How do u do number 10?

Mathematics

2 answers:

krok68 [10]3 years ago

3 0

Answer:

C is the correct option

mr Goodwill [35]3 years ago

3 0

Multiply the number is parentheses “( )” then the number outside the parentheses. Finally look for the answer that is equivalent to the given equation

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Instructions: Find the missing side lengths. Leave your answers as radicals in simplest form.

sweet-ann [11.9K]

Answer:

x = 10 $\sqrt{3}$ , y = 10

Step-by-step explanation:

Using the sine/ cosine ratios in the right triangle and the exact values

sin60° = $\frac{\sqrt{3} }{2}$ , cos60° = $\frac{1}{2}$ , then

sin60° = $\frac{opposite}{hypotenuse}$ = $\frac{x}{20}$ = $\frac{\sqrt{3} }{2}$ ( cross- multiply )

2x = 20 $\sqrt{3}$ ( divide both sides by 2 )

x = 10 $\sqrt{3}$

and

cos60° = $\frac{adjacent}{hypotenuse}$ = $\frac{y}{20}$ = $\frac{1}{2}$ ( cross- multiply )

2y = 20 ( divide both sides by 2 )

y = 10

4 0

3 years ago

A bag contains 5 white marbles and 5 blue marbles. You randomly select one marble from the bag and put it back. Then, you random

Schach [20]

1/5 this shows that each can be picked up at Least 1/5 or 2/10

3 0

3 years ago

Read 2 more answers

Give four reasons why you think mathematics should be taught in primary schools<br>

stealth61 [152]

Answer:

i) Because so that we can understand them steps by step

ii)We could enjoy when we study in school

3 0

3 years ago

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What are the X and Y intercepts of y= -2(x-4)2 +3

kari74 [83]

Answer: x-intercepts are ( 2.775,0) and (5.225,0)

And y-intercept is (0,-29)

Step-by-step explanation:

Here the given equation is,

$y = -2(x-4)^2+3$

For x-intercept, y = 0,

Put y = 0 in the above equation of parabola,

We get, $-2(x-4)^2 + 3 = 0$

$-2(x^2+16+8x) + 3 = 0$

$-2x^2-32-16x + 3 = 0$

$-2x^2-16x -29 = 0$

By solving this equation,

We get, x = 2.775 or x = 5.225

Therefore, x-intercept of the given parabola are (2.775, 0) and (5.225,0)

Now, for y-intercept, x = 0

By putting x = 0 in the given equation of parabola,

We get, y = -29

Thus, y-intercept of the given parabola = (0,-29)

4 0

4 years ago

Help meeeeeeeeeeeeeeee<br> 1/2=2m m=

musickatia [10]

Answer:

.25

Step-by-step explanation:

5 0

3 years ago