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3 years ago

Help❗️Anybody know how to do this stuff?

Mathematics

1 answer:

Lunna [17]3 years ago

7 0

I wish I did I would help u out but I hope u have luck

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How to solve this equation?

Novay_Z [31]

Answer:

x = √(28), or x = 5.292

Step-by-step explanation:

First you distribute the square to the values inside of the parentheses. so it ends up looking like this

5(x^2 - 25) - 9 = 6

add 9 to both sides

so its 5(x^2 - 25) = 15

Then distribute the multiplication of 5 to the contents within the parentheses

so it would be 5x^2 - 125 = 15

add 125 to both sides

you get 5x^2 = 140

divide by 5 on both sides

you get x^2=28

then, take the square root of both sides to reverse the square

√(x^2)=√(28)

and in the end you get x=5.292

but √(28) will probably be fine if your teacher doesn't want u to solve for that kind of stuff.

6 0

2 years ago

Really need help and ALL CAPS NO SPACES

scZoUnD [109]

Step-by-step explanation:

1. $x+6 + 3x + 2 + 2x + 4$

Combine Like Terms:

Answer: $6x+12$

2. $6x + 4 + 7x + 1 + 5x + 7$

Combine Like Terms:

Answer: $18x+12$

3. $4x-3 + 3x + 5x - 6$

Combine Like Terms:

Answer: $12x-9$

4. $6x - 8 + 3x + 7 + 5x - 3$

Combine Like Terms:

Answer: $14x-4$

Your code is, GBIH

4 0

1 year ago

I understand the simple interest part, however I don’t understand the compounded interest part, need help quick.

Burka [1]

Compound interest is the starting amount x (1+ the interest rate as a decimal)^ the time in years=the final amount.

In your case, the equation will be $1000*(1+0.10)^how many years= the final amount.

7 0

2 years ago

A student drove to the university from her home and noted that the odometer reading of her car increased by 16.0 km. The trip to

notka56 [123]

Answer:

Average speed is 48 km per hour

Step-by-step explanation:

A student drove to the university from her home and noted that the odometer reading of her car increased by 16.0 km. The trip took 20.0 min. (a) What was her average speed? in km/hr

Distance traveled is 16 km and the time taken is 20 minutes

convert minutes into hour. to convert minutes into hour we divide by 60 because 1 hour = 60 minutes

$\frac{20}{60} =\frac{1}{3}$

so time = 1/3 and distance = 16

Average speed = distance by time

$speed =\frac{16}{\frac{1}{3} } =\frac{48}{1}= 48$

Average speed is 48 km per hour

4 0

3 years ago

How do you square a variable

77julia77 [94]

To square means to multiply something by itself. A variable is a letter such as x. So a squared variable=x×x=x^2.
I hope that helped.

8 0

2 years ago