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Keith_Richards [23]
2 years ago
13

Answer to this is apparently

Mathematics
1 answer:
Inga [223]2 years ago
7 0

Answer:

y=10(3.16)^x

Step-by-step explanation:

Given equation is,

log(y) = 0.5x + 1

We can rewrite this equation as,

\text{log}_{10}(y)=0.5x+1

y = 10^{(0.5x+1)}

[If \text{log}_a(b)=c, then b = a^{c}]

y = 10(10)^{0.5x}

y = 10[(10)^{0.5}]^x

y = 10(3.16)^x [Since, 10^{0.5}=3.16]

Therefore, y=10(3.16)^x will be the answer.

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16x^2 - 49 when factored is ?
vaieri [72.5K]

Answer:

(4x-7)(4x+7)

Step-by-step explanation:

This is called the Difference of Two Squares (DOTS).

These are the conditions that must be met for DOTS to work:

•There must be 2 terms.

•They must be separated by a negative sign.

•Each term must be a perfect square.

First, you have to find 2 square numbers that times together to make 16.

4×4=16

As we want 16x², you just need to make the 4 become 4x:

4x times 4x equals 16x²

Then, find 2 squares that times together to make 49.

7×7=49

You can put the two squares into a bracket with the x variable first, then the number:

(4x-7)(4x+7)

In the brackets, you always put the negative sign in the first one and then the plus sign in the second one.

You can double check your answer by expanding it back out again using FOIL:

F-First

O-Outer

I-Inner

L-Last

Times the First two in the two brackets:

4x times 4x equals 16x²

Times the Outer two:

4x times 7 equals 28x

Times the Inner two:

-7 times 4x equals -28x

Times the Last two:

-7 times 7 equals -49

Form an equation:

16x²+28x-28x-49

The 28x cancel out to leave:

16x²-49

Hope this helps :)

3 0
3 years ago
The area of the circle is square
Igoryamba

Answer:

16л, 8л

Step-by-step explanation:

r=4

area=4*4л

=16л

circumference= 2л*4

=8л

4 0
2 years ago
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In performing a chi-square goodness-of-fit test with multinomial probabilities, the ___________ the difference between observed
DedPeter [7]

Answer:

Step-by-step explanation:

The smaller/closer the difference between observed and expected frequencies, the higher the probability of concluding that the probabilities specified in the null hypothesis are correct concluding that the data fits that particular distribution given.

3 0
3 years ago
(4x^y-4)3<br> Simplify please
pashok25 [27]

Answer:

12x^y-12

Step-by-step explanation:

Multiply 3 by 4

12x^y-4⋅3

12x^y-12

4 0
3 years ago
PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER PLS GIVE ME A STEP BY STEP EXPLANATION!!
V125BC [204]

Answer:

option A

Step-by-step explanation:

<h2><em>Note: </em></h2>

when there is an open circle, that means Less than or equal to.

if and when there is a Closed, colored Circle, It's Greater than or equal to or less than or equal to

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