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viktelen [127]
3 years ago
14

Please answer this question below 8th grade math?!

Mathematics
1 answer:
Nikolay [14]3 years ago
7 0

Answer:

it b

Step-by-step explanation:

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Use the formula s = rwt to find the value of the
Vinil7 [7]

Answer:

π/36 sec-1

Step-by-step explanation:

From the question we are given the formula below

s = rwt ..........eqn(1)

Where s= π/3m, r=3 m, t= 4 sec

We were not given value of " w" which implies we are required to find out values of" w"

We can make " w " the subject of the formula from eqn(1)

s = rwt

w= s/(rt)........eqn(2)

Then substitute for the values in eqn(2)

w= (π/3m ) / ( 3m × 4 sec)

= π/36 sec-1

Hence, the value of the

missing variable is π/36 sec-1

6 0
2 years ago
The slope of a line perpendicular to y=4x-7 is
tatuchka [14]

Answer: m perpendicular = - 1/4

4 0
2 years ago
Dave and Ellen are newly married and living in their first house. The yearly premium on their homeowner's insurance policy is $4
Mila [183]

Answer:

a. $27

b. $9

Step-by-step explanation:

The yearly premium on their homeowner's insurance policy is $450 for the coverage they need.

Their insurance company offers a discount of 6 percent if they install dead-bolt locks on all exterior doors.The couple can also receive a discount of 2 percent if they install smoke detectors on each floor.

a. What discount will Dave and Ellen receive if they install the dead-bolt locks?

0.06\times450=27 dollars

b. What discount will Dave and Ellen receive if they install smoke detectors?

0.02\times450=9 dollars

8 0
3 years ago
Increase 8kg by 23%.<br><br><br> I need help quickly!!!<br><br> - Thankyou :)
kumpel [21]
For this you can use the operation: (8*23) / 100. this will give you the     ANSWER 9.84
5 0
3 years ago
PLEASE ANYTHING HELPS!
4vir4ik [10]

For this case we can model the problem as a rectangle triangle.

 We know:

 Length of the hypotenuse

 Angle between the base of the triangle and the hypotenuse.

 We want to know:

 Length of the base.

 For this we use the following trigonometric relationship:

<em>cos</em>(15)=x/100

 Clearing x we have:

x=500*<em>cos</em>(15)

x=482.96

 Rounding to the nearest tenth of a meter:

x=483.0m

 Answer:

 The horizontal distance she has covered is:

x=483.0m

6 0
3 years ago
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