3 years ago

You can replace any letter in function notation with any number.

Mathematics

1 answer:

Vikentia [17]3 years ago

5 0

A. That would be True

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There were 27 bales of hay in the barn. Grant stacked some more bales in the barn.Now there are 76 bales. Let b be the number of

lutik1710 [3]

Answer:

b=49

Step-by-step explanation:

27+b=76

76-27= 49

b=49

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3 years ago

Is 88,490,144 divisible by 9?

Vlad [161]

Answer:

Step-by-step explanation:

The sum of the digits is 40 which is not divisible by 9, so it is not divisible by 9

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3 years ago

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ankoles [38]

The ratio 4/5 can also be written as (D.4:5)

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3 years ago

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stealth61 [152]

The website's name I used is Desmos by the way! It's a graphing calculator you might use in later classes.

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2 years ago

How many real solutions does this system of equations have? x² + y² = 25 and x-3y=15

olya-2409 [2.1K]

$x - 3y = 15 \\ x = 15 + 3y$

$(15 + 3y) {}^{2} + y {}^{2} = 25$

$225 + 90y + 9y {}^{2} + y {}^{2} = 25$

$10y {}^{2} + 90y + 200 = 0$

$y {}^{2} + 9y + 20 = 0$

$(y + 4)(y + 5) = 0$

$y = - 4 \: \: \: \: \: \: y = - 5$

$for \: y= - 4 \\ x = 15 + 3( - 4) = 15 - 12 = 3$

$for \: y = - 5 \\ x = 15 + 3( - 5) = 15 - 15 = 0$

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2 years ago