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3 years ago

PLEASE PLEASE HELP ME PLEASE HURRY

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

8 0

1a.) ??
1b.) SA = (2.24*1.5)*4+(3^2)

2.) (6*12)+(3.6*4)2
6*12 because the length of the sides of the three inner rectangles are equal to 6 and 4*3, which is 12.
3.6*4*2 because if you cut the triangles and shape them into rectangles, you get side lengths of 3.6 and 4, and then you multiply by 2, to account for the other triangle.

3a/b.)??

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lana66690 [7]

Answer:

#1. Identity #2. 0 #3. No solution

Step-by-step explanation:

#1.

5y + 2 = (1/2)(10y+4)

5y + 2 = 5y + 2

This would be identity as the equation of the left and right are the same. This is not to be confused with no solution(explained below).

#2.

0.5b + 4 = 2(b+2)

0.5b + 4 = 2b + 4

0.5 b - 2b = 0

b = 0

#3.

-3x + 5 = -3x + 10

This equation has no solution because when you try to bring the -3x to one side, the x variable itself gets eliminated. So, how is it different from identity? Well in the first equation, it is true that when we try to bring the 5y one side it eliminates the y variable, however, that is also true for the constants(since if we try to bring the 2 to one side, it will be 2-2 which will equal 0, thus eliminating each other), but in this case, even if we remove the x, the constants will not equal 0, thus it will have no solution.

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4 years ago

Value of this problem?

Rudik [331]

$\frac{4^3\times4^{-1}\times5^{-2}}{4^4\times5^{-3}\times5^0}=\frac{4^{3-1}\times5^{-2}}{4^4\times5^{-3+0}}\\=\frac{4^{2}\times5^{-2}}{4^4\times5^{-3}}=4^{2-4}\times5^{-2-(-3)}\\=4^{-2}\times5^{1}=\frac{5}{4^2}\\=\frac{5}{16}$

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3 years ago

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Grace [21]

Answer:

a is an even number and b is an odd number

Step-by-step explanation:

if a is even and b is even then the sum would be even ex.10+6=16. I'd a and b are both odd the sum would be even ex. 13+9=22. one has to be odd and one has to be even for the sum to be odd ex. 5+4=9

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3 years ago

6. Which value of x makes the equation below true?<br> 5x - 3 = 11 A. 1.6 B. 2.8 C. 40<br> D. 70

Harlamova29_29 [7]

Answer:

It's B

Step-by-step explanation:

2 times 5 = 10

0.8 times 5=4

10 + 4 =14

14-3=11

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2 years ago

What is the answer to 11/12×6=

Mademuasel [1]

Answer:

$\frac{11}{2}$

Step-by-step explanation:

$\frac{11}{12}$ x 6 = $\frac{11}{2}$

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3 years ago