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torisob [31]
3 years ago
15

Which expressions are equivalent to 4^-2 times 7^-2

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0

Step-by-step explanation:

= {4}^{ - 2}  \times  {7}^{ - 2}

=  {(4 \times 7)}^{ - 2}

=  {28}^{ - 2}

=  \frac{1}{ {28}^{2} }

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Answer:

33.75

Step-by-step explanation:

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Calculate the formula by using simultaneous equation <br><br>1: 2x+3y = -1 <br> x+y = -1 ​
Rina8888 [55]

I think that X = -2 and Y = 1

I hope my answer will serve you.

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3 years ago
Solve 2x + 3y = 11 and 2x - 4y = -24 and hence find the value of 'm' for which y=mx+3.
zhenek [66]

Answer:

m=-1

Step-by-step explanation:

2x+3y=11............. (eqn 1)

2x-4y=-24...........(eqn 2)

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8 0
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Firdavs [7]

Answer:

a. Another letter that have corresponding angles is the letter 'E'

b. Another letter that have alternate angles is the letter 'N'

Step-by-step explanation:

The capital letter 'F' can be described as letter can be presented as follows;

Two horizontal parallel lines touching and perpendicular to a common transversal

Therefore, the parallel lines in the letter 'F' and their common transversal form corresponding angles below each parallel line and the common transversal

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3 years ago
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BlackZzzverrR [31]

Answer:

= 72a + 20s

Step-by-step explanation:

Given that;

a =  number of adult tickets sold

s  = number of student tickets sold.

According to given condition:

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Adding same terms:

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