Mathematics High School

Fully factorise 20x + 16.
.
2
-2
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Enter your answer

Answers

Answer 1

Answer:

4(5x+4) is the answer

Step-by-step explanation:

..............

Related Questions

In 42 minutes, Mr. Goo can run 6 miles. How long does it take him to run 1 mile?

Answers

Answer:

7 min

Step-by-step explanation:

Answer:

7 Minutes

Step-by-step explanation:

If you divide 42 by 6, you get 7.

The area of a rectangular field is 48m2 and one of its sides is 6m . How long will a lady take to cross the field diagonally at the rate of 20m/min

Answers

Answer:

It will take her approximately 28 seconds to cross the diagonal of the pitch

Step-by-step explanation:

If we can find the length of the diameter of the field (in Metres), we can easily find the time it takes her to cross this length using motion equations.

Step one: Find the length of the field from its area.

The field is rectangular in shape. The area of the field is 48m^2. To get the area of the field, we had to multiply its length and its breadth.

i.e area = length X breadth.

Let us assume that the breadth = 6m

its length will be area / breadth = 42/ 6 = 7m

The length of the pitch = 7 m

Step Two: Find the length of the diagonal using Pythagoras' theorem.

From Pythagoras'theorem, the length of the diagonal  can be obtained by

[tex]diagonal = \sqrt{l^2 +b^2}[/tex]

[tex]diagonal = \sqrt{6^2+ 7^2} = 9.22m[/tex]

The length of the diagonal is 9.22m

Step three: Find the time using her speed and the distance she needs to cover.

Time = distance / speed

time = 9.22 /20 = 0.46 minutes

It will take her approximately 28 seconds to cross the diagonal of the pitch

y-(-3y) combine the like terms to create an equivalent expression

Answers

Answer: 4y

Step-by-step explanation:

Distribute the negative sign to get rid of the parentheses

y+3y = 4y

Is my answer right? if not can you please show me the correct answer

Answers

No it is a =9 is correct

Answer: No, is a=9

Step-by-step explanation:

I need some help here please​

Answers

Answer:

d. raíz de 44

[tex] \sqrt{48 \\ } [/tex]

I believe the answer is D.

That’s because in radicals if there’s a square inside they square root that and put it on the outside. For example for √8, it would be 2√2, since the four can be square rooted, and there is still a 2 left inside the square root. For √48, there is a sixteen inside so you square root the 16 and get 4√3. Hope this helps

What is the line of reflection?

Answers

Answer:

Y Axis

Step-by-step explanation:

The y axis is the best so it reflects off of both sides of the best axis in the world.

Maybe the Y - Axis? Lol.

HELP (ENGLISH)
Amira is preheating her oven before using it to bake. The initial temperature of the oven is 75° and the temperature will increase at a rate of 20° per minute after being turned on. What is the temperature of the oven 9 minutes after being turned on? What is the temperature of the oven tt minutes after being turned on?

Answers

The expression should be 75+20x. For every nine minutes (75+20(9)) the oven temperature should be at 255 degrees.

The soccer club held a spaghetti dinner. They sold 39 child tickets for $3.75 each and 27 adult tickets for $5.95 each. The amount for 11 child tickets was refunded. Estimate the amount of income received by the soccer club.

Answers

Answer:

265.65

Step-by-step explanation:

(3.75*39)+(27*5.95)-(11*3.75) = 265.65

The grocery store had 4lb bag of oranges for 4.80$ and a 6lb bag for 6.18$ . What is the difference of the 4lb bag of oranges and the 6lb bag of oranges

Answers

Answer:

$1.38

Step-by-step explanation:

The grocery store had 4lb bag of oranges for 4.80$ and a 6lb bag for 6.18$ . What is the difference of the 4lb bag of oranges and the 6lb bag of oranges

The cost difference is calculated as:

Cost of 6lbs of oranges - Cost of 4lbs of oranges

Cost of 6lbs of oranges = $6.18

Cost of 4lbs of oranges = $4.80

Hence,

= $6.18 - $4.80

= $1.38

given: x+y=10 if x=-21, what is y?

Answers

Answer: y = 31

Step-by-step explanation: all you need to do is plug in the x

since x = -21 we can put: -21 + y = 10

now we add 21 to both sides giving us: y = 31

Answer:

(-21,22)

Step-by-step explanation:

x+y=10

x=-21

subtitue the x value

-21+y=2

solve for y

y=22

Then write your answer by ordered pair

(-21,22)

please help me with this​

Answers

Answer:

a=8/2 b=9/4 c=13/5

What is the equation of a circle centered at the origin with radius 20​

Answers

Answer:

we have a rule

(x-h)²+(y-v)²=r²

while h is the x intercept

v is y intercept

r is the radius

so the answer will be

x²+y²=400

or

x²+y²=20²

17.) An ostrich can run 174 feet in 3 seconds. What is the slope of the line and what does it
represent?

Answers

The slope of the line is positive. The slope of the line is 58. The ostrich can run 58 feet per second.

HELLP ILL GIVE ALL MY POINTS IF SOMEONE HELPS The ratio of bows to headbands of Monique’s hair accessories is 8:4.

Select all true statements.




For every 8 hair accessories, 4 are bows.


For every 8 bows, there are 4 headbands.


For every 8 headbands, there are 4 bows.


For every 8 hair accessories, 4 are headbands.


For every 12 hair accessories, 4 are headbands.

Answers

Answer:

Its a

Step-by-step explanation:

Answer:

B and D I think

Explaination:

its bows to hair so its 8:4

and add head bands to bows thats 12

12:4

( all to headbands)

Hope it make sense

What is the solution set of –|x| = –8?

{8}
{–8}
{–8, 8}
no solution

Answers

-8 and 8 in my opinion i’m not a 100% sure

Answer:

its c -8,8

Step-by-step explanation:

I could use a little help on this question take your time and please give the right answer if you dont give the right answer its fine

(reward for best answer):D

Answers

Answer:

3/5 or three fifths

Answer:

62 cookies

Step-by-step explanation:

If we take 40 and divide by 24 we get 1.6 that means for every normal cookie there is 1.6 chocolate cookies. With that we can simply just divide 100 by 1.6 to get 62.5 I chose to round down.

If the density of a piece of wood is 0.85 g/cm3, what is the volume if the mass of 24.99 cm3?

Answers

Answer:

to find volume

Step-by-step explanation:

I think so it is like this 24.99/0.85 =29.4

Write down in terms of n an expression for the nth term of the following sequence
12 16 20 24 28

Answers

Answer:

4n + 8

Step-by-step explanation:

HELPPP PLEASE!!!! HELP

Answers

A1 x=5
2 x=7
3 t=3
B1 x=3
2 x=2
3 z= √6

What is the volume of a cylinder with radius 6 and height of 4. Use 3.14 for pi

Answers

The Answer (V≈452.39)

So we're working on ratios and proportions in my math class. I feel attacked because my teacher specifically called me out and said- "Nya, you can do this, a little math won't hurt." So now I need help. :')

6) A pizza cost 12.00. If the sales tax is 7%, what is the final price of the pizza?

A. 12.07
B. 12.70
C. 12.84
D. 19.00

Answers

A pizza cost 12.00. If the sales tax is 7%, what is the final price of the pizza?

$12.84 or C

Have a great day! :)

I’m being timed , I need help

Answers

Answer:

Step-by-step explanation:

Uh

Answer:

Time: 1, 16, 30, 40

Distance: 5/8, 10, 18 3/4, 25

Step-by-step explanation:

hope this helped

Anais bought 4 1/2 yards of ribbon. She had 3 feet 8 inches of ribbon left after trimming some curtains. How many inches of ribbon did anais use to trim the curtains

Answers

Answer:

First convert all numbers into inches since that is the answer being solved for.

1 yard =36 inches

4.5 x 36 = 1,620 inches

1 foot = 12 inches

3 x 12 = 36 inches

36 + 8 = 44 inches

Now take 1,620 inches (starting ribbon measure) and subtract 44 inches (what was left over) to get the inches used to trim curtains.

1,620 inches - 44inches =

1,576 inches were used to trim the curtains.

Step-by-step explanation:

Brainly highly appreciated <3

At a zoo, the price of 4 adult tickets and 6 child tickets is $77.The price of 6 adult tickets and 4 child tickets is $83. What is the ticket price for one adult and for one child?

Answers

Answer:

the cost of 1 child ticket is $6.5 and the cost of 1 adult ticket is $9.5

Step-by-step explanation:

Given that:

the price of 4 adult tickets & 6 child tickets = $77

the price of  6 adult tickets & 4 child tickets = 83

then the price of 1 adult ticket and 1 child ticket will be:

Let assume that the cost of 1 adult ticket to be $p

Then;

the cost of 4 adult ticket = $4p

Similarly, the cost of 6 adult ticket = $6p

However, assuming that the cost of 1 child ticket is $q

Then;

the cost of 6 child ticket = $6q

the cost of 4 child ticket = $4q

∴

We can express them with their given prices that:

4p + 6q = 77    --- (1)

6p + 4q  = 83   --- (2)

From equation (1), let 4p = 77 - 6q

Then; [tex]p = \dfrac{77 - 6q}{4}[/tex]

replace the value of p into equation (2)

∴

[tex]6 \Big ( \dfrac{ 77 - 6q }{4}\Big) + 4q = 83[/tex]

[tex]\dfrac{462 - 36q}{4}+ 4q = 83[/tex]

[tex]115.5 - 9q + 4q = 83 \\ \\ 115.5 -5q= 83 \\ \\ 115.5 - 83 = 5q \\ \\ 32.5 = 5q[/tex]

[tex]q= \dfrac{32.5}{5}[/tex]

q = 6.5

Since q = 6.5, then using equation (1)

4p + 6(6.5) = 77

4p +39 = 77

4p = 77 -39

4p = 38

p = 38/4

p = 9.5

Thus, the cost of 1 child ticket is $6.5 and the cost of 1 adult ticket is $9.5

- 5x + 9y = - 32
-5x - 3y = 4

Answers

Answer: look at the picture

Step-by-step explanation: Hope this help :)

Oliver buys 4 pineapples. Each pineapple is
$2 off the original price. He pays $4. What is
the original price of a pineapple?

Answers

Answer:

hello

Step-by-step explanation:

The original price i 1 dollar

V70





Estimate the square root of the number below to the nearest tenth

Answers

8.4 hope that helps
It’s 777777777777777222222222.000002020202020202202020202020

The perimeter of triangle ABC is 96. Find the value of x. 4x + 1 2x 3x + 2 perimeter of ABC = 96
​

Answers

Answer:

4.5is answer

Step-by-step explanation:

perimeter of ABC = 96

4x + 1 2x 3x + 2=96

21x=96

x=96/21=4.5

Determine whether ABCD is a parallelogram if AB = 6, BC = 12, CD = 6, and DA = 12. Justify your answer
A/ Yes; Opposite sides are congruent to each other.
B/ Yes; Opposite sides are parallel to each other.
C/ Yes; Opposite angles are congruent to each other.
D/ No

Answers

A/ yes; opposite sides are congruent to each other.

Help needed ASAP!
Write a polynomial equation of degree 4 that has the following roots: -1 repeated three times and 4.

Answers

Answer:

[tex] {x}^{4} - {x}^{3} - {9x}^{2} - {11x}^{2} - 4 [/tex]

Step-by-step explanation:

Since the roots are -1,-1,-1 and 4 we can that as.

[tex](x + 1)(x + 1)(x + 1)(x - 4)[/tex]

x+1=0, x equal -1, and x-4=0 and x equal 4. Then apply the foil method to one at a time and you equal the answer above.

Other Questions
PLease answer this question help pls ill mark as brainliest if correct simplify 4 to the 11th power over 4 to the -8th power (c) Paul uses the function y = 7x + 30 to model the situation. What score does Pauls model predict for 3 hours of homework? (d) Describe what the number 30 in Part (c) mean in the context of the situation? What would you multiply by to increase a number by 4%? If an ordered pair was added to the table, which of the following pairs would result in the table becoming not a function. (-3, 6) (0, 8) (3, 20) (8, 4) (-10, 8)(A) ( 8, 8) (C) (8, 3) ( B) (6, 3)(D) ( 3, 4) help please Pls help I dont get it 44 POINTS PLEASE HELP!!!!! I'D REALLY APPRECIATE IT! ALSO MARKING BRAINLIEST!Write a 1 to 2 paragraph evaluation of the essay titled "Take Another Look at Electric Cars". Use your graphic organizer and include textual evidence.Heres the essay:Take Another Look at Electric CarsThe average automobile driver pays $2,000 annually for gasoline. That $2,000 of gas is contributing to both the United States dependency on foreign countries and environmental pollution. Electric cars are beneficial for their owners and for the environment. Anybody who is buying a new car should consider purchasing an electric car.Electric vehicles have a reputation as being expensive, but that has changed in the past few years. Purchase prices have been dropping and a federal tax credit lowers their actual cost even more. The average cost of a brand new gas automobile is approximately $31,500. Most new electric cars are priced between $30,000 and $40,000. That is a higher initial cost, but when you factor in the $7,500 federal tax credit (and possible additional state tax credits, depending on where you live), the price becomes comparable to that of a gasoline car. The annual costs associated with owning a car are much lower with an electric car. The average driver pays about $2,000 a year for gas. The average cost of electricity for a year of driving is $500. That will save $1,500 a year in fuel. Additionally, a more modern and streamlined engine will save drivers in other maintenance fees. One government study estimated that electric-car drivers will save over 40 percent in annual maintenance fees.One of the biggest arguments against electric cars has been their limited range. Electric cars do have a shorter range, but that range is plenty for most drivers. The majority of American drivers travel less than 35 miles a day, and the average electric car has a range of about 100 miles on a full charge. Charging the car at home each night will provide enough power for daily driving and allow drivers to save time by avoiding stops at the gas station. And, as the number of electric cars on the road increases, more businesses and employers will install charging stations for their customers and employees, which will make charging a vehicle even easier.An electric car may not be for everyone, but they have evolved beyond their original restrictions. With a purchase price that is comparable to a gas car, and reduced fuel and maintenance fees, anyone who is purchasing a new car should seriously consider an electric car. Spread the word, and check out an electric car today.PLZ HELP ;-; Solve each multi-step inequality 6 - 8n > - 8 - 6n Which of the following processes does not occur during Prophase II of Meiosis Il?A. DNA condenses into tightly wound chromosomesB. The nuclear membrane dissolves C. Microtubules formD. Homologous chromosomes pair up (3-4 +5-3)-help me help will give brainliest If a point (5,2) is rotated counterclockwise 90 about the origin, its image will be point(Im on a timed test, please help)theres are the answer choices:A. (-2, 5)B. (-5, 12)C. (2, 5)D. (2, -5) The area of a bathroom floor measures 6 feet by 9 feet and each custom tile that makes up the flooring is 1 1/2 square feet. How many tiles are needed to cover the floor?pls help me 4. What year did Samuel Slater build a mill in Rhode Island? Two _________________ plates are descending (going under) the _________________ plate. 2. 1. Asia's new boat has a cruising speed of 27 miles per hour. At that rate, how long will it take her to travel the 3 miles across Old Hickory Lake? Why do we need to be physically fit? please complete the picture Due to your severe pain, the doctor tells the nurse to give you 825 mg of pain medicine every 6 hours. You also hear the nurse say that the medication comes in 250-mg tablets. How many tablets should she give you every 6 hours? (Round to tenths, if necessary.)