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3 years ago

SOMEONE HELP! I AM GOING TO FAIL THIS WITHOUT U :(

Mathematics

1 answer:

malfutka [58]3 years ago

3 0

Answer:

D) Standard deviation, because there are no outliers that affect the center

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If the domain of f(x)=-x² is integer values of x such that -3≤x<0, find the range.

slamgirl [31]

The range is the resulting y-values we get after substituting all the possible x-values.

$\text{The domain:}\\\\-3\leq x < 0\to\{-3,\ -2,\ -1\}\\\\\text{The range:}$

Substitute the values of x to the equation of the function:

$f(-3)=-(-3)^2=-9\\\\f(-2)=-(-2)^2=-4\\\\f(-1)=-(-1)^2=-1\\\\\boxed{\{-9,\ -4,\ -1\}}$

8 0

3 years ago

What is the solution to this system of linear equations?y − 4x = 72y + 4x = 2(3, 1)(1, 3)(3, −1)(−1, 3)

Setler79 [48]

If im understanding your post this is what i get

y − 4x = 72

+ y + 4x = 2

_________

2y= 74

Y= 72/2

Y= 36

y − 4x = 72

35-4x=72

-4x=72-35

-4x=37

X= 37/-4

X= - 37/4 or -9.25

Answer in point (-37/4, 36)

5 0

3 years ago

Read 2 more answers

A spherical tank has a radius of 6 yards. It is filled with a liquid the cost $7.15 per cubic yard.

mote1985 [20]

We have two questions, but we need to find the volume of the spherical tank first.
So the formula we will use to find the volume is:
(4/3)πr³=V
Let's fill in the information we have and solve. We will be using 3.14 for pi.
(4/3)(3.14)6³
(4/3)(3.14)(216)
4.1867×216
I'll be using the repeating decimal for 4.1867, I rounded to 7, but there is a repeating 6.
904.32
So the volume is 904.32 yards³ (or 904.78 if using the full pi)
We have to multiply the volume by 7.15.
904.32×7.15
6,465.89
It will cost $6,465.89 to fill the tank with the liquid.

3 0

3 years ago

Read 2 more answers

Braden has already taken 1 page of notes on his own, and he will take 2 pages during each hour of class. Write an equation that

beks73 [17]

Answer:

2h=2p

1h=1p

Step-by-step explanation:

7 0

3 years ago

Drag each tile to the correct box. Not all tiles will be used.

Zina [86]

Answer:

$1,100 at 3.2% for 3 years -> $105.60

$990 at 3.15% for 4 years -> $124.74

$1,025 at 2.8% for 5 years -> $143.5

Step-by-step explanation:

Simple interest formula is:

A = P*(1 + r*t)

where A if final account, P is principal, r is annual interest rate (as decimal) and t is time in years

Interest earned is A - P, then:

I = P*(1 + r*t) - P = P(1 + r*t - 1) = P*r*t

If P = $1100, r = 0.032 and t = 3, then:

I = 1100*0.032*3 = $105.6

If P = $990, r = 0.0315 and t = 4, then:

I = 990*0.0315*4 = $124.74

If P = $1025, r = 0.028 and t = 5, then:

I = 1025*0.028*5 = $143.5

5 0

4 years ago