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2 years ago

The discount on a new refrigerator was $190. This was a discount of 11 %.

Mathematics

1 answer:

7nadin3 [17]2 years ago

6 0

158.954 is the answer

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The area of a rectangle is

ANEK [815]

Area = length x width
length = 3 x width - 5

i.e. 50 = w(3w - 5)
3w^2 - 5w - 50 = 0
(3w + 10)(w - 5) = 0
w = -10/3 or w = 5
but width cannot be negative, hence
width = 5 yd
Length = 3 x 5 - 5 = 15 - 5 = 10 yd

8 0

2 years ago

A ball is shot upward from a slingshot at a velocity of 15 m/s the height of the ball after t seconds is given by h(t)=10+ 5t+1/

otez555 [7]

Answer:

The instantaneous velocity after eight seconds is 9 m/s

Step-by-step explanation:

Given as :

The ball shot upward with velocity of 15 m/s

The height of the ball after t sec is given as h(t) = $10 + 5t + \frac{1}{4}t^{2}$

Now, The instantaneous velocity after 8 sec = $\frac{\partial h(t)}{\partial t}$

Or, The instantaneous velocity = $\frac{\partial (10 +5t + \frac{1}{4}t^{2})}{\partial t}$

or, The instantaneous velocity = $5 + \frac{1}{4}\times 2 t$

Now at t = 8 sec

The instantaneous velocity = 5 + 4 = 9 m/s

Hence The instantaneous velocity of ball at t = 8 sec , is 9 m/s Answer

3 0

2 years ago

Pls help a girl out .......

VARVARA [1.3K]

Answer:

Yes

Step-by-step explanation:

The sentence does correctly state the equation written.

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2 years ago

The cost of 5 pens is $140.50. What is the cost of 1 pen?

nydimaria [60]

Answer:

28.1

Step-by-step explanation:

140.50/5

These are some expensive pens

5 0

2 years ago

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Etermine the x-intercept and y intercept of the following equations.

quester [9]

It’s c uk what I mean it’s c cuzzz

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2 years ago