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3 years ago

Find the value of 4a-3 when a=6

Mathematics

1 answer:

N76 [4]3 years ago

8 0

Answer:

4a-3 when a=6 = 21

Step-by-step explanation:

4*6-3

4*6=24-3=21

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When drawing a card, find the probability of drawing a spade or selecting a number less

iVinArrow [24]

Answer:

Therefore, there 16 chances of getting a spade OR a five.

Step-by-step explanation:

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2 years ago

The average income, I, in dollars, of a lawyer with an age of x years is modeled with the following function: I = -425x^2 + 45,5

lord [1]

We are given

The average income, I, in dollars is

$I=-425x^2+45500x-650000$

(a)

now, we are given

average income is $275000

so, $I=275000$

now, we can set them equal

and then we can solve for x

$275000=-425x^2+45500x-650000$

$-425x^2+45500x-925000=0$

we will have to use quadratic formula

$x=\frac{-45500+\sqrt{45500^2-4\left(-425\right)\left(-925000\right)}}{2\left(-425\right)}:\quad \frac{-\sqrt{45500^2-1572500000}+45500}{850}$

$x=\frac{-45500-\sqrt{45500^2-4\left(-425\right)\left(-925000\right)}}{2\left(-425\right)}:\quad \frac{\sqrt{45500^2-1572500000}+45500}{850}$

we get

$x=27.28199$

$x=79.776$

we need to find youngest age

It means that we need to choose smallest value

so,

$x=27$ ............Answer

(b)

we are given

x=40

so, we can plug it and find I

$I=-425(40)^2+45500(40)-650000$

$I=490000$ ..............Answer

6 0

3 years ago

The temperature at noon was -30C.By 10.P.M. on the same day the temperature decreased by 5.50. What is the temperature at 10 P.M

Nata [24]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

There are 20 students in your class 3/5 of them pack a lunch which meant that will help you find the number of students in your

Leto [7]

So 3/5 of 20 is what
'of' means multiply

3/5 of 20 means
3/5 times 20/1=(3*20)/(5*1)=60/5=12/1=12

12 pack a lunch

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3 years ago

Which one matches the picture description

mr_godi [17]

Answer:

356.82

Step-by-step explanation:

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2 years ago