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Deffense [45]
3 years ago
7

Can someone please help?

Mathematics
1 answer:
timofeeve [1]3 years ago
4 0

Answer:

Step-by-step explanation:

You need to get the numbers in the same base.

(7^2)^(x - 1) = 7^1 * 7^1/2

7^2(x - 1) = 7^(1 + 1/2)

Now you can equate the powers since the base is the same

2(x + 1) = 1.5                Remove the brackets

2x + 2 = 1.5                 Subtract 2 from both sides

2x = 1.5 - 2

2x = -1/2                     Divide by 2

2x/2 = -1/2/2

x = - 1/4

This is not an easy question. I hope the steps help you.

You might be interested in
Ind the slope and y intercept of -9x+3y=5
Radda [10]

Answer:

first, you need to get y on one side. So, because the x is negative it becomes positive when you switch it to the other side. 3y= 9x+5. You then need to divide all parts by 3. 3/3= 1 so thats just y. 9/3 is 3 so thats 3x. then 5/3 is a fraction that you can write as just 5/3 or 1 and 2/3. That would leave you with y= 3x + 5/3. Then x (3) is your slope. and what you add to it (5/3) is your y int.

4 0
3 years ago
I’m confused. lol. Pls help
AlexFokin [52]

Answer:

(-3,1) dhdjdjdjdjejdhdjehehdhdjddjdjddh

(-3,1)

3 0
3 years ago
(-8x-3)- -5<br> i need work shown i don't know how to do this one
lawyer [7]
The answer for this problem is -8x+2  

3 0
3 years ago
The first step in determining the solution to the system of equations, y = -x2 - 4x - 3 and y = 2x + 5, algebraically is to set
sweet-ann [11.9K]

Answer:

Combine like terms onto one side of the equation

Step-by-step explanation:

You have

-x^2  -4x  - 3  = 2x + 5

It seems that we should combine like terms to make this equations smaller.

-x^2 - 4x - 3  - 2x  - 5 = 0

-x^2  -6x  - 8 = 0

- (x + 2)(x + 4) = 0

x = -2  or  x  = -4

6 0
3 years ago
Need help ASAP !!
aleksley [76]

The missing expression should be for Step 3 is [(25 + 3)/0.5] - 16.4 ÷ 4 and the missing expression should be for Step 6 is 56 - 4.1

<h3>Part A: Explain what the missing expression should be for Step 3</h3>

To do this, we make use of the expression in step 2

The expression in step 2 is

[(5^2 + 3)/0.5] - 16.4 ÷ 4

The next step at this stage is to evaluate the expression 5^2

So, we have:

[(25 + 3)/0.5] - 16.4 ÷ 4

Hence, the missing expression should be for Step 3 is [(25 + 3)/0.5] - 16.4 ÷ 4

<h3>Part B: Explain what the missing expression should be for Step 6.</h3>

To do this, we make use of the expression in step 5

The expression in step 5 is

56 - 16.4 ÷ 4

The next step at this stage is to evaluate the expression 16.4 ÷ 4

So, we have:

56 - 4.1

Hence, the missing expression should be for Step 6 is 56 - 4.1

Read more about expressions at:

brainly.com/question/723406

#SPJ1

4 0
1 year ago
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