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3 years ago

I need to know the answer

Mathematics

1 answer:

Y_Kistochka [10]3 years ago

5 0

Answer:

y=3.65

X=11.85

Step-by-step explanation:

sin(60)=y/12

sin(60)×12=y

y=3.65

sin(30)=X/12

sin(30)×12=X

X=11.85

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-z=80 solve with steps

dalvyx [7]

-z = 80

You cannot submit an equation with a negative letter ( -z ) so we have to cancel the negative.

To cancel negatives in the equation, we multiply both sides by -1.

-z * -1 = 80 * -1

z = -80

Answer: z = -80

5 0

3 years ago

PLEASE HELP! Identify the rule for the function table.

fgiga [73]

Hello!

You have to find what the rule is

12/24 = 0.5
6/12 = 0.5
-6/-12= 0.5

They multiply x by 0.5

the rule is multiply x by 0.5 or y = 0.5x

Hope this helps!

4 0

3 years ago

What is greater 8 yd or 288 in

natali 33 [55]

To solve this problem we need to know the equivalence between yards and inches, that is:
1 yd = 36 inches

Therefore in 8 yd we have:
8(36) = 288
so in 8 yd we have 288 inches
So 8 yd is equal to 288 in

3 0

3 years ago

Read 2 more answers

Suppose it takes 45 hours for robot A to construct a new robot. Working together with robot B, it takes 25 hours for both robots

Len [333]

Answer:

56 hours 25 minutes

Step-by-step explanation:

Given:

Suppose it takes 45 hours for robot A to construct a new robot

It takes 25 hours for both robots to construct a new robot.

Question asked:

How long would it take robot B to construct a new robot, working alone ?

Solution:

Let the time taken by robot B to construct new robot = $x$

By robot A

It takes 45 hours to construct = 1 new robot

It takes 1 hour to construct = $\frac{1}{45} \ new\ robot$

By robot B

It takes $x$ hours to construct = 1 new robot

It takes 1 hour to construct = $\frac{1}{x}$ new robot

By working together

It takes 25 hours to construct = 1 new robot

It takes 1 hour to construct = $\frac{1}{25} \ new\ robot$

$\frac{1}{25}$ new robot is constructed in = 1 hour

New robot is constructed by both working together in 1 hour = New robot is constructed by robot A in 1 hour + New robot is constructed by robot B in 1 hour

$\frac{1}{25} =\frac{1}{45} +\frac{1}{x} \\$

Subtracting both sides by $\frac{1}{45}$

$\frac{1}{25}-\frac{1}{45} =\frac{1}{45} -\frac{1}{45}+\frac{1}{x} \\\\\frac{1}{25}-\frac{1}{45} =\frac{1}{x}\\\\ Taking\ LCM \ of \ 25\ and\ 45,\ we\ got\ 225$

$\frac{9-5}{225} =\frac{1}{x} \\ \\ \frac{4}{225} =\frac{1}{x}\\\\ By\ cross \ multiplication\\4\times x=225\\Dividing\ both\ sides\ by\ 4\\x=56.25\ hours$

Thus, robot B would take 56 hours 25 minutes to construct a new robot, working alone.

4 0

3 years ago

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On the school picnic, 4 and 3/4 dozen hamburger rolls 5 and

guajiro [1.7K]

9 3/4dozens were used

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3 years ago

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