Which of the following pairs of numbers gives a sum that is a prime and a product that is composite is it 2 and 9, 3 and 7 or 4 and 8

Answers

Answer 1

Step-by-step explanation:

2 and 9

3 and 7

4 and 8

what I see right away : the only pair whose sum is a prime number (or only just an uneven number) is 2 and 9.

2 + 9 = 11

3 + 7 = 10

4 + 8 = 12

just because these sums are even numbers they cannot be prime numbers and are "out".

A composite number is a positive integer that can be formed by multiplying two smaller positive integers different than 1.

so, the product of 2 numbers is therefore always a composite number, and the question in that direction is completely redundant (without any additional meaning).

so, again, 2 and 9 is the right answer.


Related Questions

Two similar cylindrical objects have a scale factor of 2/3.what is the ratio of their volumes.​

Answers

Answer:

A) 2 : 3

Reason: Since their scale factor is 2 / 3, meaning that the object 2 / 3 of the other same object, so the volume also 2 / 3 of the other object

Find the value of x. Give the scale factor of the left polygon to the right polygon.

Answers

Answer:

c

Step-by-step explanation:

75 POINTS
A right cylinder has a radius of 5 cm and a height of 3 cm.

Answer the following questions and make sure to show all your work.

(a) Find the Volume of the cylinder.

(b) If you wanted more volume in your cylinder, which of these two ideas would give the most Volume?

1. Doubling the radius to 10 cm, while the height remains 3 cm.
-OR-
2. Tripling the height to 9 cm, while the radius remains 5 cm.

Answers

Answer:

a) 235.62 cm³ (nearest hundredth)

b) 2. tripling the height to 9 cm, while the radius remains 5 cm, gives the most volume

Step-by-step explanation:

volume of a cylinder = [tex]2\pi r^2h[/tex]  (where r is the radius and h is the height)

Given:

r = 5 cmh = 3 cm

a) ⇒ volume = [tex]\pi \times 5^2 \times 3=75\pi =235.62[/tex] cm³ (nearest hundredth)

b)  Given:

r = 10 cmh = 3 cm

⇒ volume = [tex]\pi \times 10^2 \times 3=300\pi =942.48[/tex] cm³ (nearest hundredth)

Given:

r = 5 cmh = 9 cm

⇒ volume = [tex]\pi \times 5^2 \times 9=225\pi =706.86[/tex] cm³ (nearest hundredth)

Therefore, 2) tripling the height to 9 cm, while the radius remains 5 cm, gives the most volume

A water pipe is leaking 2 1⁄4 litres of water every hour. How long will it take 5 2⁄5 litres of water?

Answers

Measure the number of liters or gallons in the container, and divide that number by 15. This gives the flow rate in liters per second or gallons per second. The formula is F = V/T, where F is the flow rate, V is the volume and T is the time. It will take 4 2/7

Brainliest me for a thanks, welcome

Calculate the perimeter and area of this shape.​

Answers

Answer:

The area is 25.5

Step-by-step explanation

just because

Perimeter= 7.5+6+2+3+(2*2)+(7.5-2-2)= 26cm (Hope this is right!)

Which of the following Statements are true?
Statement 1: Tubes, pipes, and cans are types of right
circular cylinders.
Statement 2: A box has 12 corners.

Only Statement 1 is True.
Only Statement 2 is True.
Both Statements are True.
Neither Statement is True.

Answers

Answer: Only Statement 1 is True.

Step-by-step explanation:

A box is essentially a rectangular prism, which has 8 corners. Tubes, pipes, and cans are cylinders because the corss-section of them are circular and the connection between the bases are parallel.

Mr Tarun earns dollar $12.50 a day how much would he earn if he works for 6 days​

Answers

Answer:

$75

Step-by-step explanation:

Question:Mr Tarun earns dollar $12.50 a day how much would he earn if he works for 6 days?

Solution:$12.50 in a day

12.50 multiple by 6

=75

Ans.$75

HOPE IT HELPS

CARY ON LEARNING

Answer:

$75

Step-by-step explanation:

$12.50 x 6
= 75

helppppppppp :)))

plss :))))

Answers

Hello!

2(c-4+1)

= 2c -8 +2

= 2c -6

In an election between two candidates 25% of the voters did not cast their votes a candidate scored 40% of the votes polled and was defeated by 900 votes.find the total number of voters.​

Answers

Answer:

2000

Step-by-step explanation:

First, we have to find how many votes there were.

Since the losing candidate had 40% of the votes, that means the winning candidate had 60% of the votes.

Let x = amount of votes for losing candidate

x/40 = 900/60

Cross multiply

60x = 36,000

Divide both sides by 60

x = 600

The losing candidate had 600 votes

Add that number to 900 and we find the total amount of votes, which is 1500.

This number is the people who voted.

Now we have to find how many did not vote.

Since 25% of people did not vote, that makes people who did vote 75%

Let y = amount of voters who did not vote

y/25 = 1500/75

75y = 37,500

Divide both sides by 75

75y/75 = 37,500/75

y = 500

This means that 500 voters did not cast a vote.

Add that number to 1500 and we get that the total amount of voters is 2000

Please answer the question in the picture

Answers

Answer:

last choice

Step-by-step explanation:

be the best option because the x+8 cross each other out which leaves you with x+3 x-3 over x²+4 unless you cross the x out but no option on there haves that

Help math math math ASAP

Answers

Hi There!

[tex]\displaystyle\frac{y2-y1}{x2-x1}[/tex] (Slope formula)

Where

y2 is the y-coordinate of the second point

y1 is the y-coordinate of the 1st point

x2 is the x-coordinate of the second point

x1 is the x-coordinate of the 1st point

In this case:

y2=3

y1=-2

x2-5

x1=0

Plug in the values and solve:

[tex]\displaystyle\frac{3-(-2)}{5-0}[/tex]

[tex]\displaystyle\frac{3+2}{5}[/tex]

[tex]\displaystyle\frac{5}{5}[/tex]

[tex]1[/tex]

The slope is: 1

Hope it helps!

Have an awesome day!

[tex]\huge\text{TheStarryNights :D}[/tex]

Answer:

Hi There! (Slope formula)Wherey2 is the y-coordinate of the second pointy1 is the y-coordinate of the 1st pointx2 is the x-coordinate of the second pointx1 is the x-coordinate of the 1st pointIn this case:y2=3y1=-2x2-5x1=0Plug in the values and solve:The slope is: 1Hope it helps!Have an awesome day!

Step-by-step explanation: hope this helps☁️

using elimination method

Answers

Answer:

The value of x is 2 and y is (-5)

Step-by-step explanation:

Given;-7x + y = – 19-2x + 3y = – 19To Find;The value of x and yBy Using Elimination Method;

First name the equation

-7x + y = – 19 ...(1)-2x + 3y = – 19 ...(2)

Now, Multiply equation (1) by 3 we get,

3 × (-7x + y = – 19)

-21x + 3y = – 57

Now, Eliminate

-21x + 3y = – 57

-2x + 3y = – 19

+ – +

-19x = -38

x = -38/-19

x = 2

Now, Put the value of x in equation (2) we get the value of y.

-7x + y = – 19

-7(2) + y = – 19

-14 + y = -19

-14 + 14 + y = -19 + 14

y = -5

Thus, The value of x is (-5) and the value of y is 2.

For Verification;

-7x + y = – 19

-7(2) + (-5) = – 19

-14 – 5 = – 19

-19 = -19

-2x + 3y = – 19

-2(2) + 3(-5) = – 19

-4 – 15 = – 19

-19 = -19

Here, L.H.S = R.H.S

Hence Verified!

-TheUnknownScientist 72

Use the following to determine your monthly balance for a monthly net income of $2,700. Monthly Expenses of: Fixed $625; living $1,200; Annual monthly $625 *

Answers

The net income is the difference between the gross income and the total expenses

The net monthly balance is $1975

How to determine the net balance

The monthly income is given as:

Income = $2700

The expenses are given as:

Fixed $625;

Living $1,200 (Annual)

The living expense is given per annual.

So, we start by calculating the monthly living expense

This gives

Living =$1200/12

Living = $100

The net balance is then calculated as:

Net = Income - Living - Fixed

This gives

Net = $2700 - $100 - $625

Net = $1975

Hence, the net income is $1975

Read more about net and gross income at:

https://brainly.com/question/15530787

HELP ME OUT PLS!!!!

Which Venn diagram is correct?​

Answers

Answer:

C

Step-by-step explanation:

A is incorrect because -3.1 is rational.

B is incorrect because 1.14 repeating is rational.

C correct because everything that can be expressed as a fraction is on the left and everything that can't is on the right.

D is incorrect because pi is irrational.

C because the numbers in the irrational numbers diagram cannot be exactly represented with fractions.

Make N the subject of formula
[tex]P = N + \frac{2}{D} [/tex]​

Answers

Step-by-step explanation:

p=n+ 2/d

Multiply both sides of the equation by d.

pd=dn+2

Swap sides so that all variable terms are on the left hand side.

dn+2=pd

Subtract 2 from both sides.

dn=pd−2

The equation is in standard form.

dn=dp−2

Divide both sides by d.

dn = dp−2/d

Dividing by d undoes the multiplication by d.

n= dp−2/d

Divide pd−2 by d.

n=(p−2)/d

3. Mac made a display for the school library. He used seven sheets of poster board for the display, each sheet cost $3.25. How much did the sheets cost him?​

Answers

Answer:

$22.75

Step-by-step explanation:

We know that Mac used 7 sheets that cost $3.25 each. Our goal is to find the total cost that the sheets were altogether.To find this, we need to multiply the number of sheets by the cost.This will be 7 • $3.25, which will get us $22.75

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.

PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST​

Answers

D, basically the commutative property of addition means that the sum never changes, i.e. 6+4 = 10 or 4+6 = 10, so D will have the same sum as the original because it is the same equation just in a different order.

Answer:

A ans - 50/6 process I an sending

Gareth buys 2 oranges he pays with £1 coin and gets 52p change work out the cost of 1 orange

Answers

The cost of one orange is 76 p.

What is division?

Division is a mathematical operation that is used to determine the quotient of a set of numbers. The sign used to denote division is ÷.

What is the cost of 1 orange?

The first step is to know how many pence makes a pound.

100 pence = 1 pound

The second step is to convert £1 52 p to pence

1 x 100 + 52 = 152p

The third step is to divide, 152 by 2

152/2 = 74p

To learn how to convert units, please check: https://brainly.com/question/25993533

55% of the cookies Joel baked had chocolate chips.If joel baked 77 cookies with chocolate chi[s.How many cookies did hs bake

Answers

Answer:

140 cookies

Step-by-step explanation:

77=55%

55/5=11      

77/11=7

7=5%

it's 45% away from 100%

45/5= 9

9x7=63

63+77=140

The answer is 140 cookies

i have no idea

anyone else here think imagine math sucks

Answers

Answer:

Step-by-step explanation:

We can find the slope by using two points on the line itself.

Lets use the points (0, -3) and (6, 0)

The slope's equation is [tex]\frac{y2 - y1}{x2-x1}[/tex]

Thus we get [tex]\frac{0 - - 3}{6-0} = \frac{1}{2}[/tex]

So the slope is 1/2

Hope that helps!

Answer:

slope = 1/2

Step-by-step explanation:

Use the formula:
[tex]\frac{dy}{dx}[/tex] OR  change in y/change in x

If we take an x value of -6 and y value of -3 we get 1/2 as the answer.

Prove: AB ≅ CD
URGENT HELP NEEDED

Answers

Answer:

Down Here

Step-by-step explanation:

Step 2:

Statement: m∠AEB ≅ m∠ CED

Reason: Vertical Angles

Step 3:

Statement: BE = DE

Reason: Def. of bisect

Step 4:

Statement: AE = CE

Reason: Def. of bisect

Step 5:

Statement: ΔAEB ≅ ΔCED

Reason: SAS

Step 6:

Statement: AB = DC

Reason: CPCTC (congruent parts of congruent traingles are congruent)

-Chetan K

Will give brainlisted!!! Please help!!!!!!!!!!!!!!!!!

Answers

Answer:

(answer below)

Step-by-step explanation:

[tex]-2\geq x\leq 7[/tex] and -8 < x> -1

A quadratic function has roots of 2 and - 5, and passes through the points (3,24) and (1, -18).
Determine an equation for the function in factored form.

Answers

Answer: y + 4 = (x - 3)2, y = (x - 1)(x - 5

Step-by-step explanatin

In this lesson, you will see some advantages of a third form called factored form. Below are graphs of three equations

Three vertices of a rectangle are at points A (-5,1), B (1,1), and C (1,-2). What is the area of the rectangle?

Question 1 options:

8 sq units


10 sq units


18 sq units

Answers

Answer:

8 sq units

Step-by-step explanation:

hope it helps you

Show that [An(AnB)']= A'uB by the Use of laws of Algebra of sets​

Answers

Answer:

A` ∪ B - not A and B. So basically that is everything except A - A ∩ B (including the cases outside).

A ∩ (A ∩ B)` = A - A ∩ B

So, I would say the statement is false.

after a 25% price increase, a diamond is on sale for $2500. what was the original price?​

Answers

Answer:

$3125 dollars

Step-by-step explanation:

Given the following question:

25% of 2500

In order to find the answer, we first will have to use the formula to calculate percentages to find 25% of 2500, then we add that answer onto the initial amount to have our answer.

[tex]\frac{p\times n}{100}[/tex]
[tex]\frac{25\times 2500}{100} =25\times2500=62500\div100=625[/tex]
[tex]=625[/tex]

Now add:
[tex]2500+625=3125[/tex]
[tex]=3125[/tex]

Which means after a 25% increase the diamond will cost "$3125 dollars."

Hope this helps.

You can buy 3 hair bows for $17.52. How much would one cost?

Answers

Answer:

5.84$

Step-by-step explanation:

dividing 17.52$ by 3 will get you 5.84 inverted 5.84$+5.84$+5.84$=17.52$

What is sin30? What is cos30? What is tan60?

Answers

Answers:

[tex]\sin(30^{\circ}) = \frac{1}{2}\\\\\\\cos(30^{\circ}) = \frac{\sqrt{3}}{2}\\\\\\\tan(60^{\circ}) = \sqrt{3}\\\\[/tex]

=======================================================

Work Shown:

Problem 1

[tex]\sin(\text{angle}) = \frac{\text{opposite}}{\text{hypotenuse}}\\\\\sin(30^{\circ}) = \frac{7}{14}\\\\\sin(30^{\circ}) = \frac{1}{2}\\\\[/tex]

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

Problem 2

[tex]\cos(\text{angle}) = \frac{\text{adjacent}}{\text{hypotenuse}}\\\\\cos(30^{\circ}) = \frac{7\sqrt{3}}{14}\\\\\cos(30^{\circ}) = \frac{\sqrt{3}}{2}\\\\[/tex]

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

Problem 3

[tex]\tan(\text{angle}) = \frac{\text{opposite}}{\text{adjacent}}\\\\\tan(60^{\circ}) = \frac{7\sqrt{3}}{7}\\\\\tan(60^{\circ}) = \sqrt{3}\\\\[/tex]

simplify: 213 base five + 1111 base five​

Answers

213_5 = 2*5^2 + 1*5 + 3 = 58 base 10

1111_5 = 5^3 + 5^2 + 5 + 1 = 156 base 10

6.) What is the motion rule for reflecting a point or an image over the y-axis?

Answers

Answer:

The rule for a reflection over the y -axis is (x,y)→(−x,y).

Step-by-step explanation:

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