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ollegr [7]
4 years ago
11

10 points!!! Please help!!!!!!!

Mathematics
2 answers:
babunello [35]4 years ago
5 0
First find slope
5-10/-1-0= 5

find y-intercept
10=5(0)+B
b=-10

equation: y=5x-10
Scorpion4ik [409]4 years ago
4 0
Exponential functions are in the form ab^{x}. In this equation, b can be determined by figuring out the "common ratio" or the multiplier: the number that you have to multiply each y value to get the next y value. So, what do you have to mulriply 5 by to get 10. Or 10 by to get 20. Your answer to that question is your b. 

To get your a, you simply need to find the y value that corresponds to an x value of 0. So, from the chart, what y value corresponds to x=0?

Now, just substitute the a and b you found into ab^{x} and you've got your exponential function.
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Write an equation for the exponential function represented in the table below.
Neko [114]

Answer:

f(x)=-\frac{1}{2}(10^x)

Step-by-step explanation:

Let the exponential function be f(x)=a(b^x).

When x=0, f(0)=-\frac{1}{2}

-\frac{1}{2}=a(b^0)

a=-\frac{1}{2}

The function now becomes f(x)=-\frac{1}{2}(b^x)

When x=1, f(1)=-5

This implies that:

-5=-\frac{1}{2}(b^1)\\ \implies b=10

Therefore the equation for the exponential function represented in the table below is f(x)=-\frac{1}{2}(10^x)

7 0
4 years ago
Read 2 more answers
Which sets of numbers are closed under multiplication?
algol13
Here are the answers to the given questions above. The sets of numbers that are  closed under multiplication are the following: Whole numbers, and Integers. The answers would be options A and D. Whole numbers are closed<span> only </span>under<span> addition and </span>multiplication. Integers are closed under<span> addition, subtraction, </span>multiplication<span>, and division (with the exception of division by 0). Hope this answer helps.</span>
6 0
4 years ago
Trying to help my daughter can't figure this out.
Anvisha [2.4K]

Answer:

width equals 16

length = 20

Step-by-step explanation:

Hello there!

we know that the perimeter is 72 m

and the width is 4 m less then the length

perimeter is 2w+2l

w=width and l = length

72 + (2x-4) = 72+8 = 80

80 / 4 (because there are 4 values, w, w, l, l ) = 20

so now...

20 - 4 = w

16 = w

and 20 = l

16+16 = 32

20+20 = 40

32+40 = 72

7 0
3 years ago
Can you please help me solve this i will give you 70 points -9d-8= -4(d+2)- 5d
madam [21]

Answer:

d = all real numbers

Step-by-step explanation:

-9d-8= -4 (d + 2) - 5d

-9d - 8 = -4d - 8 - 5d

-9d - 8 = -9d - 8

0d - 8 = -8

0d = 0

d = all real numbers

8 0
3 years ago
Jenny runs a daycare center and charges $60 per day for each child. There are currently 50 children enrolled at the daycare. At
Brrunno [24]
The answer is B) <span>(60 - 4x)(50 + 2x) = 2,800

The revenue without any change in price is: 
$60/student x 50 students = 3,000
Every price drop reduces the price/student by four, so the first term, which describes the fee per student, is 60 - 4x
Every price drop also increases the number of students by two, so the second term, which describes the number of students, is 50 + 2x</span>
4 0
3 years ago
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