Alison buys 2 boxes of strawberries, box A and box B. Box A contains 15 strawberries. The strawberries in box A have a mean weight of 24 grams. Box B contains 25 strawberries. The strawberries in box B have a mean weight of 18 grams. Alison puts all 40 strawberries into a bowl. Work out the mean weight of the 40 strawberries

Answers

Answer 1

Answer:

Step-by-step explanation:

Yo no se hablar english ............................

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True or false? Help pls serious answers only

Does 4(x−8)+12=2(2x−9) have one solution, no solution, or infinitely many solutions?

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Answers

Answer: no solution

Step-by-step explanation:

The equation is given in the question is 4(x - 8) + 12 = 2(2x -9). Multiply x with 4 and 2 according to the equation. now, you can see this equation has no solution as the value of x cannot be determined.

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!how do the liver and pancreas help complete chemical digestion?

Answers

The pancreas produces enzymes that help digest proteins, fats, and carbohydrates. It also makes a substance that neutralizes stomach acid. The liver produces bile, which helps the body absorb fat. Bile is stored in the gallbladder until it is needed. These enzymes and bile travel through special channels (called ducts) directly into the small intestine, where they help to break down food

he pancreas produces the proteases trypsin and trypsinogen which digest proteins into smaller peptide units while carboxypeptidase can digest peptides to amino acids though it's not the main enzyme for this task.

Lipase digests triglyceride fats into their constituent fatty acids and glycerol while amylase breaks down starch into two or three glucose units (maltose and maltotriose) plus small branched glucose units (maltidextrins).

The panceras also secretes bicarbonate to neutralise the acid contents coming from the stomach and create an alkaline environment which enables pancreatic and small intestine enzymes to work at their optimal speed.

The liver contributes no digestive enzymes just bile which emulsifies the fats, breaks them up to smaller drops, so as to increase the surface area on which the enzymes can act thus speeding up their digestion.

Find the 4th term of (x+2)^10

Answers

(x + 2)¹⁰

Would take the terms in reducing powers of x, and increasing powers of 2.

1st term = ¹⁰C₀ x¹⁰(2)⁰ = x¹⁰

Second term = ¹⁰C₁ x¹⁰⁻¹(2)¹ = ¹⁰C₁ x⁹(2)¹

Third term =    ¹⁰C₂ x¹⁰⁻²(2)² = ¹⁰C₂ x⁸(2)²

Fourth term = ¹⁰C₃ x¹⁰⁻³(2)³ = ¹⁰C₃ x⁷(2)³

So we shall now simplify the fourth term which is = ¹⁰C₃ x⁷(2)³

ⁿCr = n! /( r!(n -r)! )

¹⁰C₃ = 10! /( 3!(10 -3)! ) = 10! / (3!*7!) = (10 *9 * 8* 7!) / (3!*7!)

= 10*9*8 / 3! = (10*9*8) / (3*2*1) = 120

4th term = ¹⁰C₃ x⁷(2)³ = 120 *x⁷*(2)³ = 120*2³*x⁷

   = 120*8x⁷

   = 960x⁷

So the fourth term in reducing powers of x = 960x⁷

I hope this helped.

If Rachel purchased a prepaid phone card for $25. Long distance calls cost 24 cents a minute using the card. Rachel used her card only once to make a long distance call. If the remaining credit on her card is $19.24 how many minutes did the call last?