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Dimas [21]
3 years ago
7

Need help with exponential functions quick 33 points!!!

Mathematics
1 answer:
Vilka [71]3 years ago
5 0

Answer:

Since x is an exponent, y = 15 × 8ˣ represents an exponential function.

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Solve. x2 + 14 = 9x A) x = 2, x = 7 B) x = 3, x = 5 C) x = −2, x = −7 D) x = −3, x = −5
chubhunter [2.5K]

Answer:

A) x = 2, x = 7

Step-by-step explanation:

x^2 + 14 = 9x

Subtract 9x from each side

x^2-9x + 14 = 9x-9x

x^2-9x + 14 = 0

What 2 numbers multiply to 14 and add to -9

-7*-2 = 14

-7+-2 = -9

(x-7)(x-2) = 0

Using the zero product property

x-7 = 0   x-2 =0

x=7   x=2

7 0
3 years ago
Emily can ride her scooter 18 miles in 50 minutes. a)how long would it take for her to ride 4 miles? b)what is her unit rate in
Blizzard [7]

Answer:A) At this same rate (speed) how far can she ride in two hours?

B) how long would it take for her to ride 4 miles?

C) what is her unit rate in miles per hour?

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5 0
3 years ago
Find the value of x. <br>log₂(3x-1)=3​
Nadusha1986 [10]

Answer:

x=3

Step-by-step explanation:

log₂(3x-1)=3​

(3x-1)=2³

3x-1=8

3x=8+1

3x=9

x=9/3

x=3

5 0
2 years ago
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Help please there is actually a question this time
Debora [2.8K]

Answer:

D...

Step-by-step explanation:

Thats on mine and got it right

4 0
3 years ago
!!!WILL MARK BRAINLIEST IF CORRECT AND ALL PARTS OF THE QUESTION ANSWERED!!!!
tester [92]
(a) The dimensions of the base of the box are (8 -2x) and (10 -2x). The depth of the box is x. The volume is the product of these dimensions.
  V = x(8 -2x)(10 -2x)

(b) A graphing calculator is suitable "technology". The process is ...
• write the equation in the calculator
• adjust the scaling so the curve fills the display area
• select the maximum point to reveal its coordinates

The value of x that maximizes box volume is about 1.5 inches.

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2 years ago
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