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2 years ago

If Rs =10 then sm = If Rm =12 then ms = and Rs =

Mathematics

1 answer:

svlad2 [7]2 years ago

4 0

MS should equal the same thing since M is the midpoint. Than you would add RM and MS to get RS

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Lots of point n brainliest SO help rq

nordsb [41]

Answer:

A. $6000

Step-by-step explanation:

Let the invested amount is x.

<u>Then the interest amount is:</u>

x*5*2.25/100 = 675
0.1125x = 675
x = 675 / 0.1125
x = 6000

Correct choice is A

7 0

2 years ago

A model rocket is launched with an initial velocity of 200 ft per second. The height h, in feet, of the rocket t seconds after t

Solnce55 [7]

Answer:

2.10 s, 10.40 s.

Step-by-step explanation:

We know that the height of the rocket is given by the function:

$h=-16t^2+200t$

We are asked to find the time for which the height of the rocket will be 350 ft. So, for that moment, we know the height but we don't know the time; however, we know that the equation can help us to find the time, doing h=350:

$350=-16t^2+200t$

The last is a quadratic equation, which can be put in the form $at^2+bt+c=0$ and solved applying the formula:

$t=\frac{-b+-\sqrt{b^2-4ac} }{2a}$

So, let's put the equation on the form $at^2+bt+c=0$ adding $16t^2$ and subtracting $200t$ to each side of the equation; the result is:

$16t^2-200t+350=0$

So, we note that a=16, b=-200, and c=350.

Then,

$t_1=\frac{200-\sqrt{200^2-4*16*350} }{2*16}=2.10$

$t_2=\frac{200+\sqrt{200^2-4*16*350} }{2*16}=10.40$

According to the equation, that are the times for which the height will be 350 ft; that is because the rocket is going to ascend and then to fail again to the ground.

4 0

2 years ago

A triangle has angle measurements of 61°, 84°, and 35°. is this triangle isosceles?

ch4aika [34]

Answer: No

Step-by-step explanation:

This is not an isosceles triangle because there are different angle measurements. The rule of an isosceles triangle is that it must always have two equal sides and angles.

8 0

1 year ago

find the surface area of rectangular prison with a width,length and height of 3m and 15m respectively

Shalnov [3]

Answer:

A=45m^2

Step-by-step explanation:

l*w

4 0

2 years ago

Please help, i need to raise my grade

Dmitrij [34]