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3 years ago

HELP I WILL GIVE BRAINLIEST. ITS DUE TOMORROW!

Mathematics

1 answer:

Nana76 [90]3 years ago

5 0

Answer:

Calm down, it's ok! the greatest value ( x = 5 )

Step-by-step explanation:

It won't be A as it is negative, so just choose the largest value and it is 5 and put it into the equation to check just in case.

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A radioactive isotope decays. The mass of the daughter atom is 4 less than the parent. What type of decay occurred? *

Anettt [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

Please help!!!! I'll make you Brainliest!! Thanks!!

alexandr1967 [171]

Im thinking it whould be c

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4 years ago

Maia mixed a batch of punch for the class party. Her recipe called for 4 2/5 cups

siniylev [52]

You just have to add all the amounts of the ingredients.
4 2/5 + 3 1/2 + 12 3/4

You can first add all the whole numbers
4 + 3 + 12 = 19

Then, you can add all the fractions
2/5 + 1/2 + 3/4

To add all the fractions, you have to use the LCD. The LCD is 20. So, divide 20 with the denominator of each fraction and multiply the result with the numerator. The denominator of all fractions would now be 20.

So,
(2x4 + 1x10 + 3x5) / 20
(8 + 10 + 15)/20
33/20

The answer is an improper fraction. We divide 33 by 20 and get the remainder.
33/20 = 1 13/20

We have a whole number of 1, we add this to the sum of the whole numbers we got earlier.
19 + 1 =20

Finally, we put together the whole number and the remainder (fraction)
20 13/20.

Therefore, the recipe can make 20 1-cup servings. The remaining 13/20 can't make a full-sized cup.

8 0

4 years ago

What is the equation of a line that passes through

Romashka [77]

A is the answer I chose

4 0

3 years ago

Alright, second try. 15 Points to whoever can solve with a half-decent explanation.

sesenic [268]

Answer:

29 cans

Step-by-step explanation:

To solve this problem we must use Heron's formula; A = $\sqrt{S(S-a)(S-b)(S-c)}$

S = 1/2 the perimeter of the given triangle

a, b, c = the measurements of the three given sides

The first step to solving this question is first finding the perimeter.

P = 65m + 74m + 67m

P = 206m

Now that we have our perimeter, we must divide P by 2 to get S.

S = 206/2

S = 103

Now we plug our numbers into Heron's formula.

A = $\sqrt{S(S-a)(S-b)(S-c)}$

A = $\sqrt{103(103-65)(103-67)(103-74)}$

A = $\sqrt{103(38)(36)(29)}$

A = $\sqrt{103(39672)}$

A = $\sqrt{4086216}$

Find the square root of this number.

A ≈ 2021.43909134... m²

If a can of paint covers 70 square meters, then you will need to figure out how many cans you need. This can be done by dividing the overall area of the triangle by the area that a single can of paint can cover.

$\frac{2021.43909134...}{70}$ = 28.8777013049...

We know we can't buy 28.87... of a can (people simply do not sell parts of cans or half-full containers... unless its a bag of lays chips and their 80% air nonsense...) so we must round up to the nearest whole number.

28.87... = 29

Thus we finally have our answer: 29 cans of paint!

5 0

3 years ago