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2 years ago

How can the number line be used to solve problems?

Mathematics

2 answers:

damaskus [11]2 years ago

8 0

Answer:

can also be used to carry out addition, subtraction and multiplication

Step-by-step explanation:

blondinia [14]2 years ago

7 0

Number lines are helpful because they’re a visual used to solve problems. Usually use them for greater and less than. When you show something is greater than or less than you use a a circle. And when you show something is greater than or equal to or less than or equal to you use a solid circle. They can go into negatives or just stay positive.

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How do you solve for x

larisa [96]

Well, <T+<S will equal 11x +2
so the equation will be 5x+10 + 58 = 11x +2
5x + 68 = 11x +2
66 = 6x (subtract 2, subtract 5x)
x = 11 (division)

To check,
<T = 5 (11) +10
<T = 65
11(11)+2 = 123
<T+<S = 123
65+58 = 123

8 0

3 years ago

1 point<br> What is the center and radius of a circle with equation (x-4)2 + (y - 2)2 = 4

abruzzese [7]

Step-by-step explanation:

Find the Center and Radius (x-4)^2+y^2=4

(

−

)

This is the form of a circle. Use this form to determine the center and radius of the circle.

(

−

)

(

−

)

Match the values in this circle to those of the standard form. The variable

represents the radius of the circle,

represents the x-offset from the origin, and

represents the y-offset from origin.

The center of the circle is found at

(

)

Center:

(

3 0

2 years ago

The pack of 300 markers has a cost of $14.00. What is the UNIT COST for the markers? In other words, how much does each marker c

leva [86]

Answer:

Step-by-step explanation:

14/300=0.04

8 0

2 years ago

Read 2 more answers

There was only 5/12 of a pizza left. Carl then ate 1/6 of the remaining pizza. How much of the pizza was left?

eimsori [14]

$\frac{5}{12} - \frac{1}{6} = \frac{5}{12} - \frac{2}{12} = \frac{3}{12} = \frac{1}{4}$

$\frac{1}{4}$ of the pizza was left

4 0

3 years ago

Read 2 more answers

A portion of a roller coaster track is shown in the figure above. the roller coaster track is shown at ground level at point S a

eimsori [14]

Answer:

Step-by-step explanation:

This is classic right triangle trig. The height of the hill is 78.4 which serves as the side opposite the reference angle of 23 degrees. The side we are looking for is the hypotenuse of that triangle. The trig ratio that relates the side opposite a reference angle to the hypotenuse of the right triangle is the sin ratio. Setting it up using our values:

$sin(23)=\frac{78.4}{x}$ , where x is the unknown length of the hypotenuse. Solving for x:

$x=\frac{78.4}{sin(23)}$

Make sure your calculator is in degree mode before entering this in. You will get a length of the hypotenuse as 200.649 feet, so choice A.

4 0

3 years ago