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3 years ago

Equations of Exponential Functions

Mathematics

2 answers:

geniusboy [140]3 years ago

7 0

Answer:

D. y = 12.74(0.7)×

Step-by-step explanation:

I calculated it logically

ki77a [65]3 years ago

3 0

Its D
Y=12.74(.7)^x
If x is 0 and y is 12.74, Plug in 0 to x
Any number with an exponent of 0 will automatically be equal to 1, therefore 12.74 times 1 is 12.74 :)

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What is the General form of the parabola of (y-3)^2=6(x+8)

MatroZZZ [7]

Answer:

x = 1.5 $t^{2}$ , y = 3 + 2at.

Step-by-step explanation:

For the parabola $Y^{2}$ = 4aX ,

General form will be

(X = a $t^{2}$ , Y = 2at) ,

Thus , for the parabola $(y-3)^{2}$ = 6(x +8)

Here , a = 1.5 and Y from the above equation should be substituted by y - 3 and X must be substituted by x + 8. After substitution of the same we can use the general equation formula for this parabola also.

Thus , general equation comes out to be :-

x + 8 = 1.5 $t^{2}$ , y - 3 = 2at

x = 1.5 $t^{2}$ , y = 3 + 2at.

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4 years ago

Sheri's freezer is 2 feet wide, 6 feet long, and 2 feet deep. What's the volume of her freezer?

Pavlova-9 [17]

Answer: 6*2*2=24 cubic feet

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3 years ago

What is the perimeter of the triangle?

erik [133]

Answer:

To find the perimeter of the triangle, you need to add up the three sides of the triangle

1 /__\ 5

1+5+9

5 0

3 years ago

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a senator wishes to estimate the proportion of united states voters who favor new road construction. what size sample should be

Nitella [24]

The size of the sample should be obtained at 2401 in order to be 95% confident

Given that:

Margi of error, $ME=0.02$

Population proportion, $p=0.50$

To Find: The size of the sample that should be obtained in order to be 95% confident

Let the size of the sample be n

Using formula,

$n=(p*(1-p))*(z(0.05/2)/ME)^{2} \\n=(0.5*(1-0.5))*(1.96/0.02)^{2} \\n=0.25*9604\\n=2401$

Therefore, the size of the sample should be obtained at 2401 in order to be 95% confident

Learn more about Population proportion here brainly.com/question/15703406

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8 0

3 years ago

for a trip, one high school rented and filled 2 vans and 8 buses with 176 students.another high school instead fit its 164 stude

vodka [1.7K]

Answer:

A bus carries 20 students while the van carries 8 students

Step-by-step explanation:

Let's assume that the number of students that the bus can carry is X And

The number of students that the van can very be y

From first statement,

8x + 2y = 176______ first equation

From Second statement,

7x + 3y = 164______ second equation

The above is a simultaneous equation and we will use the elimination method to solve for both x and y

But if we take a look at both equations,we will find out that we can't make use of the elimination method since the coefficients of both x and y aren't same in both equations.

What we have to do now is to multiply equation 1 by 3 and multiply equation 2 by 2 so as to get the coefficients of y in both equation to be the same.

Initially, both equation are

8x + 2y = 176____ first equation

7x + 3y = 164____ second equation

They will now be :

24x + 6y = 528(was multiplied by 3)

14x + 6y = 328(was multiplied by 2)

Now subtract equation 2 from 1 and we have

10x = 200

X = 20

Now substitute x = 20 in equation 1 above

8x + 2y = 176

(8 × 20) + 2y = 176

2y = 176 - 160

Y = 8

Remember that we assumed that the number of students that each bus carried was x and van was y,now we know the values of c and y to be 20 and 8 respectively.

Therefore, each bus carried 20 students and each van had 8 students on it

8 0

3 years ago

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