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mamaluj [8]
3 years ago
9

Help me please and thank you! <3

Mathematics
2 answers:
Rasek [7]3 years ago
8 0
the third choice, (3x4) + (3x5) = 27
marishachu [46]3 years ago
4 0

Answer:

its the third answer. 4×3=12 and 3x5=15 so 12+15=27

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What is 69 + 420 -14 + 86 - (4^2) = ?
Korolek [52]

Answer:

545

You can search for any mathematical expression

Step-by-step explanation:

8 0
2 years ago
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A rectangle has a height of a² + 3 and a width of a² + 2a + 5.
valentina_108 [34]

Answer:

Area =  a^4+2a^3+8a^2+6a+15

Step-by-step explanation:

The area of a rectangle is given by:

Area = Height * Width

The expressions for height and width are given. We just need to multiply and add like terms (if applicable) to find the expression for the area of the rectangle.

Remember to use distributive property:

(a+b)(x+y) = ax + ay + bx + by

Thus, we have:

(a^2+3)(a^2+2a+5)\\=(a^2)(a^2)+(a^2)(2a)+(a^2)(5)+3a^2+6a+15\\=a^4+2a^3+5a^2+3a^2+6a+15\\=a^4+2a^3+8a^2+6a+15

THis is the expression for area.

5 0
3 years ago
A company that manufactures radios first pays a start-up cost, and then spends a certain amount of money to manufacture each rad
Tresset [83]

Answer:

5.25 represents the cost of each radio

Step-by-step explanation:

5 0
3 years ago
What is the solution to the expression -2-3-(-4)?
Setler [38]

Answer:

-1

Step-by-step explanation:

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7 0
3 years ago
Can someone help me solve this???
Vlad [161]
Answer: b

Explanation: cube root is equal to the power of 1/3
Multiply the exponents 24/3=8
3 0
3 years ago
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