is 0.70 a rational or irrational?

Answer:

57. -2 yd

58. -$10

simple subtraction

Answer:

17x

Step-by-step explanation:

Answer: a

Step-by-step explanation:

15^2 + 36^2 = 39^2

Answer: the answer would be 39, 15 and 36

Step-by-step explanation:

Answer:

Step-by-step explanation:

distance = velocity x time

where: time = 2 hrs. x 3600 sec / 1 hr

                    = 7200 secs

      velocity = 22 m/s

plugin values into the formula:

distance = 22 m/s x 7200 sec.

              = 158,400 m.  or   158.4 km

Step-by-step explanation:

Joe's climbing rate is not constant

3 × 2 = 6

8 × 1.5 = 12

12 × 1.1666666667 = 14

Time when climber reaches 30ft is unknown because climbing rate is not constant

Zas's climbing rate is 2.5

2 × 2.5 = 5

4 × 2.5 = 10

12 × 2.5 = 30

At 12 seconds, Zas reaches 30 feet.

Stephen's climbing rate is 4

2 × 4 = 8

4 × 4 = 16

6 × 4 = 24

30 ÷ 4 = 7.5

7.5 × 4 = 30

At 7.5 seconds, Stephen reaches 30 feet.

Answer:

N=1

Step-by-step explanation:

1/2n+7=n+14/2

Multiply 2 on both sides to get rid of fraction

N+14=n+14

In this situation the answer is automatically 1

Check:

1/2(1)+7=1+14/2?

7 1/2= 7 1/2 ✔️

Brian interprets this outcome because There is exactly one intersection point.

ax2+bx+c=0, with a not equal to 0 is a quadratic equation, which is a second-order polynomial equation in a single variable. It has at least one solution because it is a second-order polynomial equation, which is guaranteed by the algebraic fundamental theorem. The answer could be simple or complicated.

Given, Both sides of the problem Brian is solving have quadratic expressions. He sets y as the value for the expressions. The system is then graphed, and he discovers that the two graphs have a similar vertex but that they have opposite opening directions.

The parabola expands upward if the leading coefficient is larger than zero and downward if the leading coefficient is less than zero.

A route that starts and finishes at the same vertex is called a circuit. A cycle is a circuit that doesn't repeat its vertices. If a path connects any two of a graph's vertices, the graph is said to be linked.

Therefore, Brian interprets this outcome because There is exactly one intersection point.

Learn more about Quadratic equations here:

https://brainly.com/question/22364785

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Answer:

The answers are A and E.

Step-by-step explanation:

Edg. 2020.

Answer:

the answer isC n D= {1,7}

Answer:

The intersection in them is {1, 7}

Step-by-step explanation:

Let us revise some definition in the  operation of sets of numbers

→ Ex: set A = {1, 2, 3, 5, 6} and set B = {4, 5}, then

Let us solve the problem

∵ C = {0, 1, 3, 5, 7} , D = {1, 2, 4, 6, 7}

→ The common elements in the two sets are 1 and 7

∴ C ∩ D = {1, 7}

∴ The intersection in them is {1, 7}

Answer:

C: 0.000568 miles

Step-by-step explanation:

Essentially, the exponent on the 10 is how many places to move the decimal point, and negative versus positive dictates whether to move it right or left respectively.

Answer:

Step-by-step explanation:

The answer is A. 0.568

Answer:

5

Step-by-step explanation:

Now we will look at two famous irrational numbers,  and e and calculate their approximate decimal expansions. As you may remember, pi is used in geometry and has been around for over 4000 years. It is used to find area of a circle, surface area and volume of a sphere, cone, and cylinder. Its value is used in many real world calculations such as mechanics, architecture, nature, art, and even medicine. The value e is called Euler’s number and is very important in exponential functions such as finance. Let’s approximate the value of these two numbers, e and .

Example 5:

To determine the decimal expansion of , we will use the fact that the number  is the area of a unit circle together with counting the total squares inside a circle on a grid. Remember, . The unit circle is a circle with a radius of 1. Since the area of a unit circle is equal to  and we will be counting squares, we can decrease our work by focusing on the area of just  of the circle. Take a look at the illustrations below to help you understand our premise.

Unit Circle Area using grids

A = (1)2

A =  Area of circle = total number of squares inside circle

Let’s take a look at  of the unit circle using a 10 x 10 grid. It is difficult to count the number of squares inside the quarter circle because some are not whole squares.

We have inner squares inside the quarter circle, and outer squares outside of the quarter circle. Next, we mark a border inside the circle and outside the circle, as close as possible to the circle. The inside border should enclose all the whole squares inside the quarter circle, (red). The outside border contains all the whole squares within the quarter circle and parts of the squares that are outside the circle (black). Now let’s estimate the area of the unit circle to approximate .

Let r2 equal all inner squares and s2 equal all the squares within the black border and quarter circle. There are 69 inner squares and 89 inner and outer squares. Algebraically, r2 <  < s2.

If we consider the area of the square with side length equal to 10 squares of the grid paper, then the area of r2 =  and area of s2 = .

Therefore,

r2 <  < s2

We know this is accurate because 2.76 < 3.14 < 3.44. Of course we can improve our estimate of  by including more of the partial grid squares inside the quarter circle. By combining the partial squares there appears to be about 7 more inside the circle. We then add 7 to the 69. This gives us,

We can reason the same way as before to estimate s2 to 80, instead 86.

We are getting closer to approximating pi. Suppose we divide each square horizontally and vertically instead of having 100 squares, we have 400 squares.

Multiplying by 4 throughout, we have

By looking at partial squares we can estimate r2 = 310 and s2 is 321. Then, the inequality is

We can continue the process to get closer and closer estimates,

3.14159 <  < 3.14160

and then continue on to get an even more precise estimate of . By now, we have a very close one already.

We conclude by making one final observation about  and irrational numbers. When we take the square of an irrational number such as , we are doing so without knowing the exact value of . Since we can use a calculator to show that 3.14159 <  < 3.14160, we also know

3.141592 <  < 3.141602

9.8695877281 <  < 9.86965056

Notice that the first 4 digits, 9.869 are the same on both sides of the inequality. Therefore, we can say that ^2=9.869 is correct to 3 decimal digits.

Example 6:

Estimate the value of the irrational number (12.03801...)2

Solution:

The estimated value is 144.91 and correct up to 2 decimal digits.

To estimate this, we truncate to one digit higher for the number on the right. Then we square.

12.038012 < (12.03801...)2 < 12.038022

144.91585161 < (12.30791)2 < 144.91825924

The first two decimal places are the same, therefore (12.03801...)2 = 144.91 is correct up to 2 decimal digits.

Example 7:

Estimate the value of the irrational number (9.204107...)2

Solution:

The estimated value is 84.715, which is correct up to 3 decimal digits.

9.2041072 < (9.204107...)2 < 9.2041082

84.715585667449 < (9.204107...)2 < 84.715604075664

(9.204107...)2 = 84.715 is correct up to 3 decimal digits.

Answer:

it is 6 dude

Step-by-step explanation:

Answer:

z=m+20

Step-by-step explanation:

If i think about this question right i think its (3x+15)

Step-by-step explanation:

Answer:

(3x + 5) + (x +3) = 180 sum of angles on a

straight line

3x + 5 + x + 3 = 180

3x + x + 5 + 3 = 180

4x + 8 = 180

4x = 180 - 8

x = 172/4

x = 43

PQR = 3x + 5 = 3(43) + 5 = 129 + 5 = 134

Answer:

0.2

Step-by-step explanation:

[tex]0.4 \div 2 = \frac{0.4}{2} = 0.2 \\ [/tex]

Answer:

Heya!

________________________________

Step 1:

[tex] \frac{0.4}{2} [/tex]

________________________________

Step 2:

[tex] \frac{4}{2 \times 10} [/tex]

________________________________

step 3:

[tex] \frac{2}{10} [/tex]

________________________________

Step 4:

[tex]0.2[/tex]

________________________________

☝️ step by step explanation

⚡ final answer:0.2

hope it helped you:)

Answer:

3 to the power of 4

Step-by-step explanation:

3 times 3 times 3 times 3 is equal to 81

Answer:

3 to the fourth power.

Step-by-step explanation:

3x3x3x3=81

Answer:

$286

Step-by-step explanation:

396/18 = $22 per hr x 13 hrs = $286

Plz give Brainliest

Answer:

26

Step-by-step explanation:

just subtract 15 from 41 and you get 26 :)

Answer:

x= 26

Step-by-step explanation:

15 +  x = 41

41 -15

x=26

Answer:

m=-2/3

Step-by-step explanation:

two points from graph:(-1,1) and (-4,3)

m=y2-y1/x2-x1

m=3-1/-4-(-1)

m=2/-3

m=-2/3

Answer:

hich number line shows the solution set for StartAbsoluteValue StartFraction s Over 2 EndFraction + 4 EndAbsoluteValue less-than 2.? A number line going from negative 14 to positive 10. Open circles are at negative 12 and negative 4. Everything between the points is shaded. A number line going from negative 14 to positive 10. Open circles are at negative 12 and negative 4. Everything to the left of negative 12 and to the right of negative 4 is shaded. A number line going from negative 14 to positive 10. Closed circles are at negative 4 and positive 4. Everything to the left of negative 4 and to the right of positive 4 is shaded. A number line going from negative 14 to positive 10. Closed circles are at negative 4 and positive 4. Everything between the points is shaded.

Step-by-step explanation:

Answer:

GRAPH C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

You know it is an acute angle, meaning that it has to be below 90 degrees.

~theLocoCoco

Answer:

Answer would be C

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

4 • 1/3 = 4/3

9 • 4/3 = 36/3

36/3 simplified is 12

Answer:

70%

Step-by-step explanation:

this question is basically asking, x(91) is what percent of y(130)?

to get the answer we use the formula p=x*100 divided by y

91*100=9100

9100/130=70

Answer:

b(x) = (3+0.5x) (38-4x)

Step-by-step explanation:

Let the generated revenue per day be b(x)

Let x be the number for every 50cents($0.5) price increase

Formula to be used to generate the revenue generated is expressed using the formula:

b(x) = Price × Quantity

Next is to derive the price and quantity function in terms of x.

For the price:

If he currently charges $3 per book

Let derive the price function for the model and x number of price increase for every 50 cents, then

Price = ($0.5 of x)+$3

Price = $3+$0.5x

Price = $(3+0.5x)

For the quantity:

Number of books rent out per day = 38

If for every 50cents increase in rental price x, the average business can expect to lose 4 rentals a day, then the total lost per quantity = 4x

Quantity per time = Number of books rent out daily - loss on each book

Quantity = $(38-4x)

Next is to substitute the price and quantity function into the revenue formula above:

Revenue = Price × Quantity

Revenue = (3+0.5x)(38-4x)

Hence the equation that models this scenario, where b(x) is the revenue generated and x is the number of 50 price increases is b(x) = (3+0.5x)(38-4x)

Answer:

2. 1

Step-by-step explanation:

the point at which the y axis is passed through is (0,1)

Answer:

15

Step-by-step explanation:

The sum of any integer and its opposite is equal to zero

Hope this helps :)