ayo besties help me

Answer:

[tex]h(x)=-2x^2+2x+4[/tex]

Step-by-step explanation:

h(x) = -2(x - 2)(x +1)

Standard form: [tex]h(x)=-2x^2+2x+4[/tex]

Answer:

Step-by-step explanation:

A=2(10)12+2(10)9+9(12)

A=240+180+108

A=528 in^2

Answer:

large

Step-by-step explanation:

Answer:

In this case, you can simply treat the > sign like an = sign.  The only time you would need to worry about is when multiplying or dividing by negative numbers.

2x + 3 > 13

2x + 3 - 3 > 13 - 3

2x > 10

2x / 2 > 10 / 2

x > 5

Answer:

Step-by-step explanation:

The ratio of the circumference to its diameter.

the proportion can be written this way

Circumference / diameter = pi / 1

Answer:

5:7

Step-by-step explanation:

150:210

50:70

5:7

(Ratio has been simplified)

Answer:

Step-by-step explanation:

Since WV || XY, V and Y are same side int. angles

same side int angles add up to 180

V+Y=180

subst -> 60+V=180

V=120

Answer:

14[tex]s^{4}[/tex] - 7s² + 15

Step-by-step explanation:

Given

(12[tex]s^{4}[/tex] - 6s² + 4s) + (6[tex]s^{4}[/tex] - 4s + 27) - (4[tex]s^{4}[/tex] + s² + 12) ← distribute parenthesis

= 12[tex]s^{4}[/tex] - 6s² + 4s + 6[tex]s^{4}[/tex] - 4s + 27 - 4[tex]s^{4}[/tex] - s² - 12 ← collect like terms

= 14[tex]s^{4}[/tex] - 7s² + 15

Answer:

hope this helps

Step-by-step explanation:

When a small group of farmers in eastern China looked at their watermelon fields one spring morning in 2011, they had quite a shock. The fields were not full of a bumper crop like that shown in this picture. Instead, the fields were full of shattered watermelons. The melons looked like they had been blown apart.

A row of watermelons in a field.

Field of ripe watermelons

The problem was limited to about 45 acres (18 hectare) of melons near Danyang. Experts concluded a chemical called forchlorfenuron was at fault. This chemical makes fruits and vegetables grow faster and larger than normal. In fact, they can grow 20 percent bigger!

China’s Watermelon Crop

China grows more watermelons than any other country. All parts of the watermelon are used in traditional Chinese medicine. Farmers see benefits in increasing the size of each melon. Bigger melons bring bigger profits. Melons that grow faster also get to market more quickly. As a result, several farmers had treated their watermelon crop. But the melons grew much faster than anyone expected—in fact, so fast that they burst apart.

Scientists who studied the situation stated that several important things went wrong. First, the type of watermelon these farmers grow is fairly thin-skinned. Under the best conditions, it would be more likely than other types of melon to split. Adding the growth stimulant made that result even more likely.

Watermelons are also more likely to split when the amount of water they receive fluctuates. Watermelons are 92 percent water. During drier weather, their skin tightens. If a heavy rain follows, the plant must absorb a lot of water very fast. The result is cracking. In this case, farmers applied the chemical before a period of heavy rain. The pressure from the water plus the growth stimulant caused the melons to burst.

Chemical Use—Good and Bad

Farmers use many chemicals on crops. That is especially true in a country like China where many people make a living as farmers, and where agriculture is an important part of the economy. The chemical used on the watermelons was a growth stimulant. It makes each acre more productive. Farmers also use pesticides. These chemicals kill pests such as insects or rodents that destroy crops. They use other chemicals to control weeds or kill organisms that spread disease.

Much of China’s farmland has been used for a long time. Fertilizers are needed to add nutrients to soil that years of use have pulled out. China’s farmers also raise livestock and poultry under conditions where many animals are crowded together. Antibiotics are widely used to control the spread of disease.

The goal of heavy chemical use is to boost farm productivity. In fact, China is the world’s largest user of agricultural chemicals. It uses 30 percent of the world total on just 9 percent of the world’s farmland. They do help China produce more food. But chemicals can also cause problems—and not just exploding watermelons.

Some chemicals can be harmful to people or the environment. Most of China’s farms are small—fewer than 5 acres (2 hectares). Studies show that small farms are more likely to use chemicals inefficiently. They may use them in way that can be harmful to the environment. Small farms are also less likely to use innovations in technology that reduce the need for chemicals.

Still, China knows the harm these chemicals are doing to the land. It has set a goal of no further growth in the use of these chemicals by 2020. That means farmers will have to cut back on the chemicals they spray onto their crops. And that should also mean no more exploding watermelons.

I believe x=4

and the y=3

Answer:

x = 4

y = 3

Step-by-step explanation:

2 × 4 = 8

8 + 10 = 18

2 × 3 = 6

6 + 4 = 10

Answer:

Step-by-step explanation:

Inscribed angle is half of the intercepted arc.

Opposite angles are supplementary.

Supplementary angles sum to 180°.

Answer:

3000meters

Step-by-step explanation:

3×1000= 3000

Answer: 3000 Meters

Step-by-step explanation:

There are 1000 meters in a kilometer.

Multiply that by 3 and get 3000

Answer:

x = - 2/5

Step-by-step explanation:

1.) add six on both sides, the six on the right will cancel out

2.) divide both sides by -20

3.) this will cancel the -20 on the right out which will give your answer for x on the left side

therefore, x should equal - 2 / 5 once simplified

Answer:

19 my friends

have a good day

Step-by-step explanation:

Answer:

9π unts²

Step-by-step explanation:

Find the diagram attached

Given the following

Radius = 6

Theta = pi/2 = 90°

Area of the sector = theta/360×πr²

Area if the sector = 90/360 × π(6)²

Area of the Sector = 1/4 × 36π

Area of the sector = 9π unts²

Answer:

B:    9Pi units squared

Step-by-step explanation:

trust:)

Answer:

The Mean Absolute Deviation (MAD) of a set of data is the average distance between each data value and the mean. The mean absolute deviation is the "average" of the "positive distances" of each point from the mean. The larger the MAD, the greater variability there is in the data (the data is more spread out).

Step-by-step explanation:

Answer:

[tex]4a - 3 = 9 + a \\ 4a - a = 9 + 3 \\ 3a = 12 \\ a = \frac{ 12}{3} \\ a = 4[/tex]

I hope this help

Answer:

The estimate is not correct?

Step-by-step explanation:

Given data

Area of wall = 18*8

=144ft^2

=4*144

=576ft^2

Area of doors

=3*7

=21ft^2

=2*21

=42ft^2

Area of window

=3*5

=15ft^2

Hence the total surface area of the room

=576-42-15

=519ft^2

The amount of paint needed= 519/300= 1.73

Approximately 2 gallons

We are told that 1 gallon will cover 300ft^2

Hence 3 gallons will cover 300*3= 900ft^2

Therefore the painter overestimated the amount of paint needed

As 2 gallons will do the job

Answer: 2/6 or 1/3

Step-by-step explanation:

SCHOOL has 6 letters in it and two O's. Therefore, it would be 2/6 or simplified it would be 1/3.

That was FUN!

Answer:

the answer is B

Step-by-step explanation:

Answer:

it depends on lots of things such as the planet air sphere and even if its a planet or an asteroid because hot things moves quickly and cold things moves slowly.

space as space in general is above that at an average of 2.7 kelvin (about minus 455 degrees fahrenheit)

Answer:

22

Step-by-step explanation:

6 divided 6 equals 1 and 1 times 22 equals 22

Brainliest ?

Answer:

it can't be factorised the variables should be same

Answer:

the law of bodmas multiplication first so

40+(40*0)+1

40+1

41

Answer:

0.25

Step-by-step explanation: