-3 + x2 = -19 does x = 4

Answers

Answer 1

Answer: The equation given in the question is written below
- 3 + x^2 = - 19
x^2 = - 19 + 3
x^2 = - 16
x^2 = - (4)^2
Then
x = - 4
So we can see from the above deduction that x is equal to -4 and not +4. I hope the procedure is clear enough for you to understand. You can always use this method for solving problems of similar kind without requiring any help from outside. Only be careful about the calculation part of the problem given.

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Ms. White has 15 students in her first grade class. Troy is the line leader for the week, and Mackenzie is last because she was the line leader last week. In how many different ways can Ms. Whites class line up for lunch?

A blue rope is 3 times the length as a red rope. A green rope is 5 times as log as the blue rope of the total length of all 3 ropes equals 508.25m what is the length of blue rope

Answers

15 because 3 blue ropes times it by 5 green ropes to get 15 ropes

Find the percent of each number what's 25% of 56

Answers

Answer=14

25%=.25

x=56*.25
x=14

Give the slope of the graph and the unit rate

Answers

Answer:

y=5/4 x

The slope is 5/4

Step-by-step explanation:

To solve this problem we need to find the equation of the line, y=mx+b

We've been given a table with several points, so we can use two of them to perform our calculus.

To obtain the slope we need to use the equation of slopes:

$m=(y_(2)-y_(1))/(x_(2)-x_(1))$

Where (x1,y1) =(4,5) and (x2,y2)=(8,10)

m= (10-5)/(8-4)=5/4

To obtain b we can use the point (x2,y2)=(8,10) in the equation.

10=5/4 *8 +b

b=0

Hence our line has the following equation:

y=5/4 x

What is the standard form of 13.8

Answers

Answer:

$13.8 = (1* 10) + (3* 1) + (8* \displaystyle(1)/(10))$

$13.8 = (1*10^1) + (3* 10^0) + (8* 10^(-1))$

Step-by-step explanation:

Standard form of a number is the the form where the number is expressed in the number digit form. There are many techniques to convert a same number into standard form.

There are many ways of writing a number in expanded form.

One of the way is:

$13.8 = (1* 10) + (3* 1) + (8* \displaystyle(1)/(10))$

Another way could be:

$13.8 = (1*10^1) + (3* 10^0) + (8* 10^(-1))$

10+3+.8

hope this helps :-)

Bert's cab company charges $1.00 plus an additional $3.00 per mile for a ride. Madeline's cab company charges $3.00 plus an additional $2.00 per mile for a ride. At what distance in miles will the cost be the same for both companies. Please show your work

Answers

The distance when there'll be the same cost will be 2 miles.

From the information given, it was stated that Bert's cab company charges $1.00 plus an additional $3.00 per mile for a ride. Madeline's cab company charges $3.00 plus an additional $2.00 per mile for a ride.

Therefore, the equation to solve the question will be:

1 + 3m = 3 + 2m

3m - 2m = 3 - 1

m = 2

The distance will be 2 miles.

Learn more about equations on:

brainly.com/question/2972832

I will use linear equation:Berts:y=3x+1. where y represents the total costMadeline's: y=2x+3Plug in numbers for x and you will find that the answer is 2 miles because bert: 3(2)+1=7 andMadeline: 2(2)+3=7Hope this helped

A box is 20 centimeters long and 30 centimeters high. It's volume is 3,600 cubic centimeters. What is the width of the box?

Answers

We can start by looking at what we know.

We know that volume is equal to length x width x height. Filling in this equation with the values we're given:
20cm x width x 30cm =
3600cm^3

If we divide both sides by 20cm we get:
width x 30cm = 180cm^2

Next we can divide both sides by 30cm to get our answer:

width = 6cm

First you have to add 20 and 30. That gives you 50. Then you divide 3,600 by 50 and that is 72. So 72 is the width.

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