Mathematics College

In the equation x +9x+ 20 = (x+ a)(x+b),b is an integer.
Find algebraically all possible values of b.

Answers

Answer 1
x+9x+20 = (x+4)(x+5) or (x+5)(x+4)
so the answer could be 4 or 5

Related Questions

Solve the following equation for x: 6(4x + 5) = 3(x + 8) + 3. Round to the nearest hundredth.

Answers

Answer:

x ≈ -0.14

Step-by-step explanation:

6(4x + 5) = 3(x + 8) + 3

24x + 30 = 3x + 24 + 3

24x + 30 = 3x + 27

21x + 30 = 27

21x = -3

x = [tex]\frac{-3}{21}[/tex]

x = [tex]-\frac{1}{7}[/tex]

x ≈ -0.14

a 56-inch board is to be cut into three pieces so that the second piece is three times as long as the first piece and the third piece is four times as long as the first piece if x represents the length of the first piece find the length of all three pieces ​

Answers

Step-by-step explanation:

length of 1st piece = x inch

length of 2nd piece = 3x inch

length of 3rd piece = 4x inch

x + 3x + 4x = 56

8x = 56

x = 7

Thus,

length of 1st piece = 7 inch

length of 2nd piece = 3 × 7 = 21 inch

length of 3rd piece = 4 × 7 = 28 inch

Ann is using a recipe that serves 20 people. The recipe requires half a
of a cup of sugar. How many cups of sugar does Ann need to serve 70 people with this recipe?

Answers

Answer is 1 and 1/2 cups of sugar is needed

Answer:

17.5 cups of sugar

Step-by-step explanation:

20 people = 1/2 cup of sugar

10 people = 1/4 cup of sugar

70 people = 17 1/2 cup of sugar

Hope this helps!

Camila invests money in an account paying a simple interest of 3.4% per year. If she invests $50 and no money will be added or removed from the investment, how much will she have in one year, in dollars and cents?

Answers

After investing $50 and waiting 1 year she would have gained $1.70.

Answer:

51.70

Step-by-step explanation:

2 ways to calculate

50 x 1.034=51.70

or

50 x .034=1.70 interest

             1.70 interest

Plus    50.00 principal

equals 51.70

The reciprocal of 7 1/2 is

Answers

Answer:

2/15

Step-by-step explanation:

To find the reciprocal of a fraction switch the numerator and the denominator

7 1/2 = 15/2 = 2/15

Have a good day

please help! What is the exact volume of the cylinder?



Enter your answer, in terms of π, in the box.

Answers

[tex]\pi \: {r}^{2} h[/tex]

[tex] \frac{22}{7} \times \: {5}^{2} \times 15[/tex]

[tex]1178.09725[/tex]

Does anybody know the answer to this question

Answers

Answer:

A

Step-by-step explanation:

Dans une classe, le professeur d’EPS choisit au hasard un élève qui sera l’arbitre du
match de football.
La probabilité que ce soit un garçon est de 0,7.
Calculer, en justifiant, la probabilité que ce soit une fille

Answers

Answer:

Step-by-step explanation:

1-0,7 = 0,3

la probabilité que se soit une fille est de 0,3

Answer:

1-0,7 = 0,3

la probabilité que se soit une fille est de 0,3

Translation:

the probability that it is a girl is 0.3

Please please help me please please I really need help please please help me please please

Answers

Answer:

1d674hh

Step-by-step explanation:

drrx+mub

A house is located at the center of a circular lot, exactly 25 yards from the edge of the lot. How much fencing will the homeowner need to surround the entire lot?

A. 157
B. 200.96
C. 185
D. 78.5

Answers

I think its it’s D. 78.5.

The number of yards fencing the homeowner need to surround the entire lot is 78.5 yards. Therefore, the option D is the correct answer.

What is the circumference?

The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its centre. A meridian is any great circle passing through a point designated a pole.

Given that, a house is located at the center of a circular lot, exactly 25 yards from the edge of the lot.

Here, d = 25 yards

Radius = 25/2 = 12.5 yards

We know that, the circumference of a circle = 2πr

= 2×3.14×12.5

= 78.5 yards

Therefore, the option D is the correct answer.

To learn more about the circumference visit:

https://brainly.com/question/4268218.

#SPJ3

Help! Can you solve this. I'll give brainliest ​

Answers

Answer:

Y = 10

I hope it's helps you

Answer:

y = 10

Step-by-step explanation:

So, we can use the external angle as the measurement of the distant angles. In other words,

4y + 7y + 6 = 116

11y + 6 = 116

11y = 110

y = 10

Please help

A vector is drawn on a grid

Answers

Answer:

.....

..

...

..

Step-by-step explanation:

I cant see the grid

ahhhh I see now yes I do

Answers

Answer: yes

Step-by-step explanation: so smart I think

HELP PLSSS!!!!!!!!!!!!!!!

Answers

Answer:

6. (27÷3) × v = 45

9 × v = 45

v = 45/9 = 5

F. 5

5. (2×19) + 3 = j

38 + 3 = j

j = 41

C. 41

4. 7 + t = 4 + 6 + 3

t = 13 - 7

t = 6

J. 7+t = 4+6+3

t = 6 tickets

Answer:

First question=5 : Second question= 41 : Third question= J

Step-by-step explanation:

27 divided by 3 is 9, so planting one violet takes 9 minutes, if they spend 45 minutes planting them you divide 45 by 9 and get 5.

:)

Ada ate 19, rob ate double Adas amount, so 19x2 to get Robs total of 38, then Jane ate 3 more than rob, so 38+3=41

:)

6 is the 13 tickets she needs -7 that she has already.

An item has a listed price of $45. If the sales tax rate is 3%, how much is the sales tax (in dollars)?

Answers

Answer:

1.35

Step-by-step explanation:

45 x .03

Which of the following is a perfect cube?
1
18
4
81

Answers

Answer: 1

Step-by-step explanation:

1 is both perfect square and cube.

find the surface area 3 No files

Answers

Answer:

872 sq inches

Step-by-step explanation:

Total surface area = 2 × (17 × 12) + 2 × (8 × 17) + 2 × (12 × 8)

                               = 408 + 272 + 192 = 872

Change the decimal to a percent. 1.3=

Answers

Answer:

Im pretty sure its 130%

Step-by-step explanation:

.013% I think you move the decimal to the left

I need help I’m so lost

Answers

Answer:

B  I think

Step-by-step explanation:

5x-6=29. What does x equal

Answers

Answer:

Solution given:

5x-6=29.

5x=29+6

x=35/5=7

x=7 is your answer

Answer:

x=7

Step-by-step explanation:

Please help, I’ll mark you as brainiest!!!

Answers

Answer:

144,000.00

Step-by-step explanation:

100-20=80%

0.8x180000=144,000

Answer:

D

Step-by-step explanation:

.2× 180000= 36000

180000- 36000

= 144000

A
Cylindrical container with Circular base
is hold 64 cubic centimetres. Find the
dimension so that the amount(surface area)
of metal required is a minimum when
( a ) the container is an open cup and ( b ) a
Closed can​

Answers

Answer:

annhbhhnnnnnnbhhhbbbbbbbbbbbbbbbbbbbbbbbnbnnnnnnnnnnnnnnnnnnnnnn 24cm2

Which statement about the ordered pairs (–2, 9), (0, 9) and (3, 9) is not true?

Answers

Answer:

The slope of these coordinates is 0.

It is a horizontal line.

Step-by-step explanation:

Can someone help ?

Marie has a can of tomatoes that is 5.75 inches tall and has a diameter of 3.6
inches. Which of the following is the closest to the volume of the can in cubic
inches?
A 234.11
B65.03
C 35.52
D58.53

Answers

Answer:

A 234.11

Step-by-step explanation:

[tex]= 234.11148454551 feet^{3}[/tex]  is what you get lol

A because I multiply and

Can you figure out the answer?​

Answers

she needs 1680 grams
Divide 480 by 4. That will give you how many grams per person. You will get 120 grams per person. Now multiply 120 by 14. That will give you the number of grams needed for 14 people. The answer will be: 1,680 grams

which equation shown below shows a linear relationship between x and y ?

Answers

Answer:

Its probably a because the ones with squared results in a u shape

Is this a polygon?

Yes or no

Answers

Answer: No

Step-by-step explanation:

A polygon should have straight lines so the answer is no

HELPPPP! Which expression is equivalent to 7Vx^2/5Vy^2

Answers

Pretty sure it’s the first answer

Answer:

Step-by-step explanation:

What percentage of data values are less than 80

Answers

Answer:

100%

none are greater than 80

Step-by-step explanation:

A satellite in a 100-mile-high circular orbit around Earth has a velocity of approximately 17,500 miles per hour.If this velocity is multiplied by √2 the satellite will have the minimum velocity necessary to escape Earth's gravity and will follow a parabolic path with the center of Earth as the focus.

Required:
Find the distance between the surface of the Earth and the satellite when θ = 50°.

a. Distance between surface of Earth and satellite:4496 miles
b. Distance between surface of Earth and satellite:4322 miles
c. Distance between surface of Earth and satellite:1286 miles
d. Distance between surface of Earth and satellite:643 miles
e. Distance between surface of Earth and satellite:1492 miles

Answers

Answer:

64.3 miles ( D)

Step-by-step explanation:

Circular orbit height ( from the center of the earth ) = 100 mile

angle between satellite and earth = 50°

escape velocity = √2 * 17500 =  24748.73 miles /hour

distance between surface of earth and satellite

x = cos ∅

∴ Cos ∅  = x / 100

x = cos 50° * 100   ≈ 64.3 miles

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