Hurry plz yeyeyeyeyeyye

Answers

Answer 1

Answer:

Answer:

$250

Step-by-step explanation:

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Expand and simplify
4a^2(b^2-c)+2ab(ab-c)-ac(a+2b)

Answers

$4a^2(b^2-c)+2ab(ab-c)-ac(a+2b)\n-----------------------\nuse\ distributive\ property:a(b-c)=ab+ac\n-----------------------\n=4a^2b^2-4a^2c+2a^2b^2-2abc-a^2c-2abc\n=(4a^2b^2+2a^2b^2)+(-4a^2c-a^2c)+(-2abc-2abc)\n\n=\boxed{6a^2b^2-5a^2c-4abc}$

4a²(b² - c) + 2ab(ab - c) - ac(a + 2b)
4a²(b²) - 4a²(c) + 2ab(ab) - 2ab(c) - ac(a) - ac(2b)
4a²b² - 4a²c + 2a²b² - 2abc - a²c - 2abc
4a²b² + 2a²b² - 4a²c - a²c - 2abc - 2abc
6a²b² - 5a²c - 4abc

A grocer stacks oranges in a four-sided pyramid that is 7 layers high. How many oranges are in the pile? A.504 B.840 C.140 D.120

Answers

Answer:

Option C. 140

Step-by-step explanation:

Base of a pyramid which has four triangular sides is four sided.

If pyramid contains seven layers of oranges then the layer at the bottom will have 7 oranges.

Since base is a square then other side of the square base will have the same number of oranges = 7.

Therefore number of oranges at the first layer will be = 7×7

Similarly other layers above this layer will have the same sequence

6×6, 5×5, 4×4, 3×3, 2×2, 1×1

Therefore total number of oranges = 7×7 + 6×6 + 5×5 + 4×4 + 3×3 + 2×2 + 1×1 = 49 + 36 + 25 + 16 + 9 + 4 + 1 = 140

Option C. 140 is the answer.

A grocer stacks oranges in a four-sided pyramid that is 7 layers high. Many oranges are in the pile are C.140

Further explanation

The orange is the fruit of the citrus species Citrus and sinensis in the family Rutaceae, native to China. Orange is also called sweet orange, to distinguish it from the related Citrus and aurantium, referred to as bitter orange.

The proper name of four-sided pyramid is a "tetrahedron". The tetrahedron has the extra interesting property of having all four triangular sides congruent

1st Layer: The 1st layer contains only 1 orange so it has only 1 orange

2nd layer: The 2nd layer has total 4 oranges. Calculation: $2*2=4$

3rd layer: The 3rd layer has total 9 oranges. Calculation: $3 * 3 = 9$

4th Layer: The 4th layer has total 16 oranges. Calculation: $4 * 4 = 16$ .

5th layer: The 5th layer has total 25 oranges. Calculation: $5 * 5 = 25$

6th layer: The 6th layer has total 36 oranges. Calculation: $6 * 6 = 36$

7th layer: The 7th layer has total 49 oranges. Calculation: $7 * 7 = 49$ .

Sum of all layers:

$1+4+9+16+25+36+49 = 140$

Learn more

Learn more about oranges brainly.com/question/10744522
Learn more about pyramid brainly.com/question/10262815
Learn more about pile brainly.com/question/9094265

Answer details

Grade: 9

Subject: mathematics

Chapter: pyramid

Keywords: oranges, pyramid, four-sided, layers, pile

Select the correct answer. Simplify √54

A. 18√3
B. 9√6
C. 3√6
D. 6√3

Answers

it would be C because they both equal 7.3

Answer:

I think it's B I'm not very sure

A bag of concrete equals 1000 cu. Inches. Your customer already has 2 bags at home. How many more bags does he need to fill an area of 5’ x 10” x 10”? ________

Answers

From the information given;
1 bag of concrete = 1000 in^3
2 bags at home = 1000*2 = 2000 in^3

The available space has a volume of;

Volume = (5*12)*10*10 (Note: 1 ft = 12 inches)
Volume = 60*10*10 = 6000 in^3

The remaining volume = Available space - occupied space = 6000 - 2000 = 4000 in^2

1 bag = 1000 in^3
x bags = 4000 in^2

Then,
x = 1*4000/1000 = 4 bags.
This means 4 more bags of concrete will be required to fully fill the space.

Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are all the same, what is the length of each side of the box? Hint: V = $s^(3)$