Which number is rational

Which Number Is Rational

Answers

Answer 1

Answer:

Step-by-step explanation:

[tex]\sqrt{81}[/tex] is the rational number because it is the perfect square of 9.

Answer 2
81 is the number of rational

Related Questions

I’m just trynna get to 90% on this test before sunrise

Answers

Answer:

they are congruent

Step-by-step explanation:

5 (3z-3) =30 it’s from delta math 8 grade

Answers

Answer:

[tex]5[/tex]

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.

5 (3z-3) = 30

15 z - 15 = 30

15 z = 30+ 15

15z = 45

z= 45/ 15

z= 3

40% of 36
can somone tell me what it is or how to do it because i am struggling

Answers

Answer:

14.4

Step-by-step explanation:

To find 40 percent of 36, here's how I do it. Just divide 36 by one hundred (move the decimal point two times to the left), giving you 0.36. Then multiply that by 40, and you get 14.4! Of course, there are multiple ways to do it, but that's just mine. If it doesn't work for you, try and search some formulas.

Answer:

Step-by-step explanation:

40/100*36

40*36/100

1440/100

14.4

so here if u divide 40% by 100 the % sign will automarically removed and here 40% 0f 36 means 40 and to remove % sign divide it by 100 and multply it by 36

Tammy knits blanket and scarves. On the first day of a craft fair, she sells 2 blankets and 5 scarves for $104

Answers

Answer:

Cost of Blanket = 32

Step-by-step explanation:

Let the cost of a blanket be = b , cost of a scarf be = s. Blanket price x Blanket Quantity & Scarf Price x Scarf Quantity sum up to be total sales.

So, Day 1 : 2b + 5s = 104 (i)  , Day 2 : 3b + 4s = 128 (ii)

Solving equations : Multiplying (i) by 3 , & (ii) by 2 , we get

6b  +  15s    =   312 ,

(-)6b + (-)8s =  (-)256

By elimination method, 15s - 8s = 312 - 256 → 7s = 56 → s = 56 / 7 = 8 .

Putting s value in any equation i], 2b + 5 (8) = 104 → 2b + 40 = 104 → 2b = 104 - 40 = 64 → b = 64 / 2 = 32

HELP! Vince weighs 160 pounds, and his friend Nadir weighs 140 pounds. Nadir calculated that his weight on another planet would be about 56 lb. Approximately what would Vince weigh on the other planet?

Answers

160/140 = x/56
cross multiply
(140)(x) = (160)(56)
140x = 8960
x = 8960/140
x = 64 lbs <== Vince's weight on the other planet

Answer:

64

Step-by-step explanation:

140/56=2.5

160/2.5=64

17. A can in the shape of a cylinder has a diameter of 6 centimeters and a height of 10 centimeters. Which measurement is closest to the total surface area of the can in square centimeters?​

Answers

Answer:

28.27

Step-by-step explanation:

Formula to find the total surface area is

2pi · r · h + 2pi r^2

the radius is 3cm

2pi · 3 · 10 + 2pi · 3^2

A sector with an area of 30pi cm^2 has a radius of 10 cmWhat is the central angle measure of the sector in degrees?

Answers

Ikjyhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Which is true given the linear equation below?
3x+4y=4

Answers

Answer:

y= −3/4x + 1

x= -4/3y + 4/3

Step-by-step explanation:

Let's solve for y.

3x+4y=4

Step 1: Add -3x to both sides.

3x+4y+−3x=4+−3x

4y=−3x+4

Step 2: Divide both sides by 4.

4y4=−3x+44

y=−34x+1

___________

Let's solve for x.

3x+4y=4

Step 1: Add -4y to both sides.

3x+4y+−4y=4+−4y

3x=−4y+4

Step 2: Divide both sides by 3.

3x3=−4y+43

x= -4/3y + 4/3

math papa algebra caculator, thank me later

I need help is it A B C or D

Answer fast please

Answers

The answer is C I’m pretty sure

Im having such a hard time solving this plz help

Answers

Answer: 38 Bags

Step-by-step explanation:

Since there are 19 people and each person needs 24 beads, the total number of beads needed is 19*24=456. Then if this total must be split up into groups of 12 beads, the answer would be 456/12=38.

You have 2 green marbles, 2 red marbles, 3 purple marbles, and 5 gold marbles in a bag. What is
the probably of the following event if no marble is replaced after pulling it?

Answers

Answer:

Green(before) : [tex]\frac{2}{12}[/tex]

Red(before) : [tex]\frac{2}{12}[/tex]

Purple(before) : [tex]\frac{3}{12}[/tex]

Gold(before) : [tex]\frac{5}{12}[/tex]

That is before. Now there are only 11 marbles, so that is the new total. Depends on which color you got to tell the new probability.

Express your answer in scientific notation:
8.8 * 10^7 + 3.1 * 10.8 =

Answers

8.80000334
×
10
7
hope this helps

Jack bought 50 lbs of clay for his art projects. He used 13.2 lbs to make a sculpture, and 0.72 lbs for each mug. How many mugs did Jack make if he had 28.88 lbs of clay left over?​

Answers

The answer would be 11 mugs
Explanation:50lbs-13.2 =36.8 and then 36.8-28.88=7.92 and finally you subtract so 7.92-0.72=11 and there’s your answer

heeelpppppppppppppppppppppp plz

Answers

Answer:

150°

Step-by-step explanation:

150 degrees: the 30 degree angle is congruent to the angle on the other side of x, and a straight line is 180 degrees so subtract 30 from 180 and you get 150 degrees.

Calculator
What is the value of x?
Enter your answer in the box.
X =

Answers

Answer:

x=5

Step-by-step explanation:

According to the Pythogoras Theorem,

(hyp)^2 = (opp)^2 + (adj)^2

(13)^2 = (12)^2 + (x)^2

169 = 144 + (x)^2

(x)^2 = 25

x = 5

X=5





What is the value of x?

Enter your answer in the box.

X=5

Answer is x=5


A ship is at a distance of 200 m from a tall tower. What is the angle of depression (to the nearest degree) of the ship found by a man after climbing 50 m up the tower?

Answers

Answer:

14degrees

Step-by-step explanation:

Given the following

Distance of ship from the tower = 200m

Height of the tower = 50m

Required

Angle of depression theta

USing the SOH CAH TOA identity

Tan theta = opposite/adj

Tan theta = 50/200

Tan theta = 1/4

theta = arctan(0.25)

theta = 14.03degrees

Hence the angle of depression is 14degrees


Please help me find the median to this table

Answers

hope this helps! feel free to clarify

Cubes having side lengths of 3/4 in. are used to fill the right rectangular prism shown.

Answers

Answer:

I also want this question ans but u also

Answer:

36

Step-by-step explanation:

on the 4 [tex]\frac{1}{2}[/tex] in side you can fit 6 cubes

on the 1 [tex]\frac{1}{2}[/tex] in side you can fit 2 cubes

on the 2 [tex]\frac{1}{4}[/tex] in side you can fit 3 cubes

6 x 2 x 3 = 36

the answer is 36

In ΔBCD, the measure of ∠D=90°, CB = 53, BD = 45, and DC = 28. What ratio represents the sine of ∠B?

Answers

Answer: 28/53

Step-by-step explanation:

trust me bro

The ratio that represents the sine of ∠B is 15/17.

What are trigonometric identities?

Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.

Since the triangle has a right angle, we can find the length of the unknown side using the trigonometric notations SOH CAH TOA where;

Sin Ф = opposite side/hypotenuses side

Cosine Ф = adjacent side/hypotenuses side

Tangent Ф = opposite side/adjacent side

With respect to ∠B given that  ∠D=90°,

BD is the adjacent side and CB  is the hypotenuse side, DC is the opposite side

Hence ,Sin B = 15/17

Learn more about trigonometric;

https://brainly.com/question/21286835

#SPJ2

What is the probability of rolling a four on the first die and a two on the second die?
(There are 6 sides)​

Answers

Answer:

1/36

Step-by-step explanation:

Probability of hitting 4 : 1/6

Probability of hitting 2: 1/6

The probability of these two elements: 1/6 * 1/6 = 1/36

Make m the subject of
g -Зm = аm + 5

NO LINKS OR BE REPORTED

Answers

M= 5 - y , 3 + a . ( hope I helped have a good day )

At a particular school 10% of children travel by bus.If this represent 120 children how many children attend the school?

Answers

Answer:

Total number of students= 1,200

Step-by-step explanation:

Giving the following information:

Proportion of students= 10%

Number of students that travel by bus= 120

To calculate the number of students that attends school, we need to use the following formula:

Total number of students= Number of students that travel by bus / proportion of students

Total number of students= 120 / 0.1

Total number of students= 1,200

Tom has some marbles in two bags. In one bag he has 3 yellow, 2 green and 1 red marble. In the other bag he has 3 yellow, 3 green and 3 red marbles. If Tom takes one marble out of each bag, how probable is it that neither one is yellow?

Answers

Answer:

1 /3

Step-by-step explanation:

Bag 1 :

Yellow = 3 ; green = 2 ; red = 1

Total = 6

P(not yellow) = (2 +1) / 6 = 3/6 = 1/2

Bag 2 :

Yellow = 3 ; green = 3 ; red = 3

Total = 9

P(not yellow) = (2 +3) / 9 = 6/9 = 2/3

P(neither yellow from the two bags) = 1/2 * 2/3 = 2 /6 = 1/3

Find the sum of the first 30 terms for the given arithmetic sequence.
8, 1, -6, -13, ...

Answers

sum= 2685
I hoped this helped!!

sorry to be annoying again I just really suck at math and I haven't slept yet ​

Answers

Answer:

50.33 mi.

Step-by-step explanation:

GIVEN :-

Coordinates of :-

Home = (0 , 0)School = (4 , 3)Pizza place = (-8 , 2)Movie Theater = (-4 , -6)Park = (7 , -5)

TO FIND :-

Total distance travelled on Friday & Saturday.

GENERAL FORMULAE TO BE USED IN THIS QUESTION :-

Lets say there are two points A & B on a cartesian plane whose coordinates are (x₁ , y₁) & (x₂ , y₂).

Distance between A & B = [tex]\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}[/tex]

SOLUTION :-

According to question ,

On Friday , you -

leave school and go to pizza palace. Distance travelled from school to pizza palace = [tex]\sqrt{(4 -(-8) )^2 + (3 - 2)^2} = \sqrt{(12)^2 + (1)^2} = \sqrt{145}[/tex] ≈ 12.04 mi.go to movie theater after pizza palace. Distance travelled from pizza palace to movie theater = [tex]\sqrt{[(-4) -(-8)]^2 + (-6 - 2)^2} = \sqrt{(4)^2 + (-8)^2} = \sqrt{80}= 4\sqrt{5}[/tex] ≈ 8.94 mi.come back to your home after the movies. Distance travelled from theater to home = [tex]\sqrt{[0-(-4)]^2 + (0 - 6)^2} = \sqrt{(4)^2 + (-6)^2} = \sqrt{52} = 2\sqrt{13}[/tex] ≈ 7.21 mi.

On Friday , total distance travelled = 12.04 + 8.94 + 7.21 = 28.19 mi.

On Saturday , you -

go to park from your home. Distance travelled from home to park = [tex]\sqrt{(7 -0 )^2 + (-5 - 0)^2} = \sqrt{(7)^2 + (-5)^2} = \sqrt{74}[/tex] ≈ 8.6 mi.go to school after going to park. Distance travelled from park to school = [tex]\sqrt{(4 -7 )^2 + [3 - (-5)]^2} = \sqrt{(-3)^2 + (8)^2} = \sqrt{73}[/tex] ≈ 8.54 mi.go to home after playing basketball in school. Distance travelled from school to home = [tex]\sqrt{(0 -4 )^2 + (0 - 3)^2} = \sqrt{(-4)^2 + (-3)^2} = \sqrt{25}[/tex] = 5 mi.

On Saturday , total distance travelled = 8.6 + 8.54 + 5 = 22.14 mi.

Total distance travelled on Friday & Saturday = 28.19 + 22.14 = 50.33 mi.


[tex]2x - 4 = 30[/tex]

Answers

Answer:

x=17

Step-by-step explanation:

2x-4=302x=30+42x=34x=34/2x=17

stay safe healthy and happy.

Answer:

x = 12

Step-by-step explanation:

2x - 4 = 30

2x = 30 + 4

2x = 34

x = 34/2

◆ x = 17

This is a Right answer

can someone help me solve this equation and explain

Answers

Answer:

C

Step-by-step explanation:

Plug in the numbers in each equation to see if it fits. C is the best option

Please help me out with this problem :)

Find the maximum value of P= x + 6y subject to the following constraints

Answers

Answer:

I cant tell what the answer is cause X and Y dont have a value

Step-by-step explanation:

Answer:

p=9

Step-by-step explanation:

Which expression best completes the following definition of a complex number?

Answers

Answer:

C. a+bi

I took the test

123
30°
у
Find the values of x and y. Write your answers in simplest form.
x =
y=

Answers

Answer:

[tex]y=6\sqrt{3}[/tex]

[tex]x=18[/tex]

Step-by-step explanation:

[tex]Sin30=\frac{9}{12\sqrt{3} }[/tex]

[tex]1/2=y/12\sqrt{3}[/tex]

[tex]y=6\sqrt{3}[/tex]

[tex]tan30=y/x[/tex]

[tex]x=y/tan30=x=\frac{6\sqrt{3} }{1/\sqrt{3} }[/tex]

[tex]x=18[/tex]

------------------------

hope it helps...

have a great day!

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