Mathematics High School

what is
[tex] \frac{1}{4} + \frac{3}{10} + \frac{5}{21} [/tex]
show full work
thanks ​

Answers

Answer 1

Step-by-step explanation:

1/4+3/10+5/21

105+42+100/420

=247/420

=0.588

Answer 2

[tex]\huge{ \mathcal{  \underline{ Answer} \:  \:  ✓ }}[/tex]

[tex]\longrightarrow \dfrac{247}{420} [/tex]

or

[tex]\longrightarrow0.588[/tex]

_____________________________

[tex]\mathrm{ ☠ \: TeeNForeveR \:☠ }[/tex]

What Is [tex] \frac{1}{4} + \frac{3}{10} + \frac{5}{21} [/tex]show Full Work Thanks

Related Questions

A garden hose is leaking 1 liter of water every 1/8 hour. How many liters of water will it leak in 3 ¾ hours? *

Answers

1 hour is 60 minutes
Therefore, 1/8 of 60 is 7.5, meaning, 1 litre of water is leaked every 7.5 minutes.
3¾ hours is 60 x 3 + 60/4
= 180 + 15
= 195 minutes
As 3 ¾ hours is 195 minutes and 1 litre is leaked every 7.5 minutes, we have to divide 195 by 7.5.
195/7.5 = 26

Therefore, the garden hose will leak 26 litres in 3 ¾ hours.

What is the total surface area of the square pyramid below?

A square pyramid. The square base has side lengths of 6 meters. The triangular sides have a height of 8 meters.

132 m2
144 m2
160 m2
228 m2

Answers

answer:

144 m2

hope this help:)

Answer:

144 m2

Step-by-step explanation:

The bisectors of the perpendicularity of the vectors

Q6.
.
Make t the subject of the formula w = 3t + 11

Answers

Answer:

t = w/3-11/3

Step-by-step explanation:

w = 3t + 11

3t = w-11

t = 1/3(w-11

t = w/3-11/3

The graph of y = x2 + 11x + 24 is equivalent to the graph of which equation?

y = (x + 8)(x + 3)
y = (x + 4)(x + 6)
y = (x + 9)(x + 2)
y = (x + 7)(x + 4)

Answers

Answer:

y = (x+8)(x+3)

Step-by-step explanation:

The equivalent expression to the given quadratic equation is:

y = (x + 8)*(x + 3).

Which equation is equivalent to the given one?

Here we start with:

[tex]y = x^2 + 11x + 24[/tex]

To solve the problem, we need to find the roots of the quadratic equation, to do it, we will use the Bhaskara's formula:

[tex]x = \frac{-11 \pm \sqrt{11^2 - 4*24} }{2} \\\\x = \frac{-11 \pm 5 }{2}[/tex]

Then the two solutions are:

x = (-11 + 5)/2 = -3x = (-11 - 5)/2 = -8

Meaning that we can write the cuadratic equation as:

y = (x + 3)*(x + 8).

So the correct option is the first one.

If you want to learn more about quadratic equations:

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Thank for doing it I love u

Answers

a) Very unlikely (1/30)

b) Unlikely (6/30)

c) Likely (15/30)

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△JKL has vertices at J(−2, 4), K(1, 6), and L(4, 4). Determine whether △JKL is a right triangle. Explain. please with full calculations

Answers

Answer:

below

Step-by-step explanation:

basically find the line that connects JK and KL, and since its 2/3 and -2/3 which are not opposite reciprocals, the points dont form a right triangle

5. A construction area has 6 cylindrical posts protecting the
equipment. They are filled with sand to reinforce them. If each
cylinder is 4 feet tall and has a diameter of 1 foot, how much sand
was needed to fill the cylinders?
Record your answer and fill in the bubbles on your answer. (If it’s wrong or random you will be reported)
document. Be sure to use the correct place value.

Answers

Answer: what’s the answer ?

Step-by-step explanation:

If each cylinder is 4 feet tall and has a diameter of 1 foot then the amount of sand needed to fill the cylinders is 19 cubic feet.

Given that there are 6 cylindrical posts protecting the equipment

To find tge amount of sand needed for cylinders,

We need to find the volume of each cylinder.

The cylinder is 4 feet tall and has a diameter of 1 foot,

Height is 4 feet

Diameter is 1 foot and radius is 1/2 feet.

Volume of cylinder = πr²h

=3.14×(1/4)(4)

=3.142 cubic feet.

As there are six cylinders.

Multiply 6 with 3.142

Amount of sand needed = 6×3.142

= 18.852 cubic feet.

To learn more on Three dimensional figure click:

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How many leaves are 7 inches or longer

Answers

Answer:

7in = 4

8in = 3

9in = 1

4 + 3 + 1 = 8

8 leaves are 7 inches or longer, because there are 4 x’s on 7, 3 x’s on 8, and 1 x on 9. Add those x’s up and you get 9.

In a bag, there are 8 blue marbles, 4 yellow marbles, and 6 red marbles. First question: What is the probability of not selecting a blue or yellow marble? Second question: What is the probability of first selecting a red marble, then selecting a yellow marble? Third question: What is the probability of first selecting a blue or yellow marble, replacing the marble, then selecting a red or blue marble?

Answers

Answer:

Question 1

P(not b or y) = P(r) = 6 / (8 + 4 + 6) = 6 / 18  = 1/3

Question 2

Assumed no replacement here

P(r then y) = 6/18 * 4/17 = 4/51

Question 3

P(b or y) = (8 + 4) / 18 = 12/18 = 2/3P(r or b) = (6 + 8)/18 = 14/18 = 7/9P(b or y then r or b) = 2/3*7/9 = 14/27

Write True or False for the statement below
A number written in the form a x 10n, where n is an integer and a is greater than or equal to 1 and less than 10, is said to be in scientific notation.

Answers

Answer:

true

since: a = 1, or >1 and <10

Simplify the expression and write any restrictions.

Answers

Answer:

Numerator :

[tex]8x^2 - 10x + 3 = 8x^2 -6x -4x + 3[/tex]

                     [tex]= 2x(4x -3)-1(4x -3) \\= (2x-1)(4x-3)[/tex]

Denominator :

[tex]6x^2 + 3x -3 = 6x^2 +6x -3x - 3[/tex]

                   [tex]=6x(x+1)-3(x+1)\\=(6x-3)(x+1)\\=3(2x-1)(x+1)[/tex]

[tex]\frac{8x^2-10x+3}{6x^2+3x -3} = \frac{(2x-1)(4x-3)}{3(2x-1)(x+1)} = \frac{(4x-3)}{3(x+1)}[/tex]

Write an inequality for the graph below.
please help​

Answers

Answer:

-6 ≥ -1

Step-by-step explanation:

Hope this helps!

A group of friends wants to go to the amusement park. They have $112.50 to spend on parking and admission. Parking is $20, and tickets cost $18.50 per person, including tax. How many people can go to the amusement park?

Answers

Answer:

The Answer Is Five

Step-by-step explanation:

Because When You Take 20 From 112.50 Its 92.5 Then You Divide By 18.50 It Equals 5

p represents the number of people who can go to the amusement park.

They have no more than $125 to spend

Parking 15.00, Tickets 12.50 per person

$15 + $12.50p ≤ $125

p = 110/12.5 ≤ 8.8

p ≤ 8, THEREFORE 8

Note: $15 + 9($12.50) =$127.50

help please will give brainliest

Answers

Answer:

x=2.86 which rounds up to 3 if u need to round

Step-by-step explanation:

Work out the size of the angle marked X.
Give your answer correct to 1 decimal place.

Answers

Answer:

41.8°

Step-by-step explanation:

We solve using the Trigonometric function of Sine

Hypotenuse = 15cm

x = θ

Opposite = 10cm

sin θ = Opposite/Hypotenuse

sin θ = 10/15

θ = arc sin ( 10/15)

θ = 41.810314896°

θ = Approximately to 1 decimal place = 41.8°

Therefore, x = θ = 41.8°

Which number sentence can be solved using this multiplication fact?

Answers

Answer:

The girl bought 5 apples, how many apples does she have after 6 times

(Did you mean to put as the multiplication fact 5x6=30?) sorry if I'm wrong

Step-by-step explanation:

Hope this helps.

Please mark Brainliest!

What is the radius of this circle of the circumference is 18pi cm?

Answers

Answer:

r=9cm

Step-by-step explanation:

C= 2pi r = 18 pi so

2r =18 so r = 18/2=9

Answer:

[tex]r=9[/tex]

Step-by-step explanation:

The equation to find the circumference of a circle when given the radius is the following,

[tex]C=r(\pi)(r)[/tex]

There (C) represents the circumference, (r) represents the radius, and ([tex]\pi[/tex]) represents the irrational numbers (3.1415...)

Substitute in the given values and backsolve for the radius,

[tex]18(\pi)=2(\pi)(r)[/tex]

Inverse operations,

[tex]18(\pi)=2(\pi)(r)[/tex]

[tex]9=r[/tex]

PLEASE HELPPP, ITS DUE IN 1 HOUR!! I WILL GIVE BRAINLIEST!! LINKS=REPORT
PLEASE SOLVE FOR THE CHART AND GRAPH. PLEASE SHOW ON GRAPH

Answers

Answer:

0=8

1=9

2=10

3=11

graph 2

Step-by-step explanation:

go to my page and answers my questions for an additional 30 points

Answers

Okay , yes siirrrrrrr

I NEED THIS ASAP!!! What is DF?

Answers

9514 1404 393

Answer:

  11

Step-by-step explanation:

The diagonals of an isosceles trapezoid are congruent.

  DF = EG = EH +HG = 8 +3

  DF = 11

Answer:

The diagonals of an isosceles trapezoid are congruent.

 DF = EG = EH +HG = 8 +3

 DF = 11

Step-by-step explanation:

11

please help (picture)

Answers

A = 360 cm^2

Step-by-step explanation:

Using Pythagorean theorem, the length AB is given by

AB^2 = 17^2 - 8^2 = 225 cm^2

or

AB = 15 cm

Since the ratio BC: CD = 1:2 and BC = 8 cm, this means that CD = 2×(8 cm) = 16 cm

so the length BD is

BD = BC + CD = 8cm + 16 cm = 24 cm

There the area of the rectangle is

A = AB×BD

= 15cm×24cm

= 360 cm^2

The answer is 320 hop this help you for your word

help due today right now

Answers

Answer:

Input the numbers into this equation and then you get your answer :)

a^2+b^2=c^2

hope this works for u :)

Answer:

using pythagoras theorem

H^2=P^2+B^2

here h =c and 15 be p and 8 be b

H^2=P^2+B^2

C^2=15+8^2

C^2=225+64

C^2=289

C=[tex]\sqrt{289}[/tex]

C=17 ft

Step-by-step explanation:

The cross section of a parabolic sound reflector at the Olympics has a diameter of 20 inches and is 25 inches deep. Write an equation that represents the cross section of the reflector with its vertex at ( ) 0, 0 and its focus to the left of the vertex.

Answers

Answer: 69

Step-by-step explanation: Sorry I do not know the answer because I am not smart.  I just need the points so I can answer more questions.  Have a great day though and I wish you luck with your question:)

plis help me answer this question plis also give expolaniaton

Answers

Answer:

Option c and d is right.

Step-by-step explanation:

CHECK BY MULTIPLYING THEM.

Answer:

Answer C and D are correct.

Step-by-step explanation:

In c, 2m + m=3m, and then adding the 2 leaves you with 3m+2.

In d, m+m+m=3m, and then again you add the two.

I need the right answer for this plz

Answers

Answer:

A = 18 km^2

Step-by-step explanation:




This is a= 18
……………………..

After 4 years eldi will be three times the age he had 10 years ago. Using algebra find the age of eldi

Answers

Suppose that Eldi has x years old now :

x + 4 = 3 × ( x - 10 )

x + 4 = 3x - 30

Add both sides 30

x + 4 + 30 = 3x - 30 + 30

x + 34 = 3x

Subtract both sides x

x - x + 34 = 3x - x

34 = 2x

2x = 34

Divide both sides by 2

2x ÷ 2 =34 ÷ 2

x = 17

_____________________________

Thus Eldi is 17 .

what is the answer of 7=-5/4(8)+c?
​

Answers

Answer:

17

Step-by-step explanation:

7=-5/4(8)+c

7=-40/4+c

7=-10+c

c=7-(-10)

c=7+10

c=17

Identify the following solid figure.

hexagonal prism
pentagonal prism
rectangular prism
triangular prism

QUICK PLEASE!!

Answers

The Answer is A. Hexagonal prism

God bless u! ❤️

The base is a hexagon

The top is also hexagon

The sides are rectangle

Hence the polygon is hexagonal prism

hey! i’ll give brainliest pls help.

Answers

i believe the answer is A. because the theory of continental drift and sea-floor spreading causes new rock to form and creates the old rock .. older

Answer:

Life forms change over time

Step-by-step explanation:


Credit becomes a problem when

A. banks begin to issue their own credit cards

B.credit is used to pay for things like college tuition

C.credit card companies offer people additional credit cards

D. a person cannot find the money to pay their monthly bills
Clear answer

Answers

Answer:

D. a person cannot find the money to pay their monthly bills

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