MATHEMATICS HIGH SCHOOL

Which of these elements is found in both carbohydrates and water?1carbon
2oxygen
3nitrogen
4helium

Answers

Answer 1
Answer: I believe the correct answer from the choices listed above is option 2. The element that is found in both carbohydrate and water is the element oxygen. Carbohydrates contain aldehydes and ketones which has oxygen on them and water has hydrogen and oxygen. So, it must be oxygen.
Answer 2
Answer:

Answer:

The answer is option B

Step-by-step explanation:

edge 2020

mark brainliest :)

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Answers

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What is 87*798 and plz give me details thx.

Answers

87 times 798 is 69,426

The figure shows eight congruent triangles made by dividing a square that has an area of 64 cm2. What is the area of ABH? A. 20 cm2

B. 16 cm2

C. 8 cm2

D. 6 cm2

E. 4 cm2

Answers

The answer is C) 8 cm squared.

That is because 64/8 = 8 cm squared. Hope this helps!!!

Answer:

C. 8 cm2

Step-by-step explanation:

If the big square is 64 cm2, then each side is 8 cm (8cm x 8cm = 64 cm2)

Each of the small squares then has both sides of half the side of the big one, then, each small square has 4cm x 4cm = 16 cm2

Ihen, each small triangle's area (such as ABH) is (b.h)/2, being the base and the height equal to the sides of the small square. Each small triangle is (4cm x 4cm)/2=8cm2

Write a sentence that explains the relationship between the two numbers.

Answers

The second answer is 4 times as small as the first

What two numbers add to -5 and multiply to 12?

Answers

negative 6 and negative 2
-2+-3x2.4=12 possible. Hold on.

Find the following when a = -1, b = 2, c = -1/4
(4b - 3)/(2a) -1

Answers

We substitute the given into the equation
given: a=-1, b=2, c=(-1)/(4)
=((4b-3)/(2a)-1
=(4(2)-3)/(2(-1))-1
=(8-3)/(-2)-1
=(5)/(-2)-1
to continue, we can either find a common denominator or change the fraction to decimal.
Fraction to Decimal:
(5)/(-2)=-2.5
Equation=-2.5-1=-3.5
OR Common Denominator:
=(5)/(-2)(-1)/(1)×(-2)/(-2)         (denominator should be -2=common)
=(5)/(-2)+(2)/(-2)
=(7)/(-2)
which also = to -3.5
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