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3 years ago

Which of the quadratic functions has the widest graph. Please help???

Mathematics

1 answer:

Alex73 [517]3 years ago

5 0

The less coefficient in front of x^2, the wider graph
the smallest coefficient is 1/5 , so the widest graph is y=(1/5)x²

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Bader gave away 24 of his toy cars. Which integer shows the change in the number of toy cars he has?

Zielflug [23.3K]

Answer:

The integer that shows the change in the number of toy cars Bader has is -24.

Explanation:

Think of it like a math problem, when you take away from your own amount, (in this case, his cars) you're subtracting from the original amount of things you had. The symbol for subtraction is also "-", so with that information it's a bit self explanatory to know which answer is correct.

7 0

2 years ago

A country's population in 1992 was 72 million. In 1998 it was 76 million. Estimate the population in 2012 using the exponential

stepan [7]

We assume the annual percentage increase is the same. We will work out the constant k using the formula

We have
P = 76
A = 72
t = 6 years (from 1992 to 1998)

Substitute into the formula
$76=72e^{6k}$
$\frac{76}{72}=e^{8k}$
Take log both sides give
$ln( \frac{76}{72})=ln(e^{6k})$
$0.05406722127=6k$
$k=0.009$

We can now work out the number of population by the end of 2012 using the formula

We have
A = 72 million
k = 0.009
t = 10 years (1992 to 2012)

$P=72e^{0.009*10}$ $P=78.78$ ≈79 million

7 0

3 years ago

Which list shows the set of integers? Select one: a. ..., -3 , -2 , -1 , 0 b. 1, 2, 3, ... c. ..., -3 ,-2 , -1 , 0 , 1 , 2 , 3 ,

PSYCHO15rus [73]

Hey love! <3

Answer:

C. ..., -3 ,-2 , -1 , 0 , 1 , 2 , 3 , ...

Step-by-step explanation:

Integers are inclusive of all numbers that are not a fraction, including negative numbers. The other sets would not be integers because all they have are whole and natural numbers.

Hope this helps! ◕3◕ Sincerely, Kelsey from Brainly.

~ #LearnWithBrainly ~

4 0

2 years ago

−4x+3y=−2 what is X and Y

Taya2010 [7]

x-intercept(s):

(

−

)

Find the y-intercepts.

y-intercept(s):

(

)

List the intersections.

x-intercept(s):

(

−

)

y-intercept(s):

(

)

3 0

3 years ago

1. ∠XVR =

Lelechka [254]

Answer/Step-by-step explanation:

1. ∠XVR = 180 - <XVW (angle on a straight line)

∠XVR = 180 - 55°

∠XVR = 125°

2. ∠RVS = <XVW (Vertical angles are congruent)

∠RVS = 55°

3. ∠WVS = ∠XVR (vertical angles are congruent)

∠WVS = 125°

4. ∠RST = <R + <RVS (exterior angle theorem)

<RST = 55 + 55

<RST = 110°

5. ∠RSV = 180 - (<R + <RVS) (sum of triangle)

∠RSV = 180 - (55 + 55)

∠RSV = 70°

6. ∠VSU = <RST (vertical angles are congruent)

<VSU = 70°

7. ∠UST = <RSV (vertical angles)

<UST = 70°

8. ∠TUS = 180 - (<UST + <T) (sum of triangle)

<TUS = 180 - (70 + 71)

<TUS = 39°

6 0

3 years ago