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Paul [167]
2 years ago
9

Expand (10-2q) (10+2q)​

Mathematics
2 answers:
NikAS [45]2 years ago
6 0

Answer:

100-4q^{2}

Step-by-step explanation:

\\(10-2q)(10+2q)\\=(10)(10)+10(2q)-2q(10)-(2q)^{2} \\=100+20q-20q-4q^{2} \\=100-4q^{2}

KatRina [158]2 years ago
5 0

Answer:

100 - 4q²

Step-by-step explanation:

(10 - 2q)(10 + 2q)

each term in the second factor is multiplied by each term in the first factor.

10(10 + 2q) - 2q(10 + 2q) ← distribute parenthesis

= 100 + 20q - 20q - 4q² ← collect like terms

= 100 - 4q²

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GrogVix [38]
The correct answer is B- The surface area of B is greater than the surface area of A. I got this answer because...

Figure A's Volume= 60

Figure B's Volume= 60 

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Figure B's Surface Area= 248

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3 0
4 years ago
5 2/4 + 5 6/8 solve the fraction
Scorpion4ik [409]

Answer:

11 2/8

Step-by-step explanation:

Turn to same fraction using multiplication

5 4/8 + 5 6/8

Add whole numbers and fractions sepperatly

5 + 5 + 4/8 + 6/8

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7 0
3 years ago
Your family goes to a Southern-style restaurant for dinner. There are 6 people in your family.
Viktor [21]

Answer:

Number of people who order chicken dinner = 1

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Step-by-step explanation:

Let

x = number of people who order chicken dinner

y = number of people who order the steak dinner

x + y = 6 (1)

14x + 17y = 99 (2)

From (1)

x = 6 - y

Substitute into (2)

14x + 17y = 99 (2)

14(6 - y) + 17y = 99

84 - 14y + 17y = 99

- 14y + 17y = 99 - 84

3y = 15

y = 15/3

y = 5

Substitute y = 5 into (1)

x + y = 6 (1)

x + 5 = 6

x = 6 - 5

x = 1

Number of people who order chicken dinner = 1

Number of people who order the steak dinner = 5

4 0
3 years ago
Simplify 4x(2x3-7x2+x)
Gelneren [198K]
To simplify this all you need to do is distribute the 4x across each term in the parenthesis
4x(2x^3 - 7x^2 + x) \\ (4x)(2x^3) - (4x)(7x^2) + (4x)(x) \\ 8x^4 - 28x^3 + 4x^2
5 0
3 years ago
2 2/10 - 16 2/11 i need answer pls
Dahasolnce [82]
The answer would be -13 54/55
8 0
3 years ago
Read 2 more answers
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