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3 years ago

Math Grade 8

Mathematics

1 answer:

pishuonlain [190]3 years ago

7 0

A. 90 + 8 = t

B. 90 + 8 = 98

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Which function is graphed on the right?

Norma-Jean [14]

Answer: $y=2^{x-2}+3$

Step-by-step explanation:

To find the equation from a graphed function, you can substitute points into each equation to find the original:

A point on the graph is (2, 4). Substituting this into each equation, we get:

$4=2^{2+3} -2$ , which claims that 4 is equal to 30, which is incorrect.

$4=2^{2-3} +2$ , which claims that 4 is equal to 3/2, which is incorrect.

$4=2^{2-2}+3$ , which claims that 4 is equal to 4, which is correct.

We can test the third function further by taking another point on the graph, (3, 5), and substituting it into the function:

$5=2^{3-2} +3$ , which claims that 5 is equal to 5, which is correct.

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4 years ago

Simplify. remove grouping sbols and combine like terms

harina [27]

Answer:

$5a^2+12b^2-40b$

Step-by-step explanation:

First distribute the -4 to the 2b and -3b. This leaves you with $5a^2-8b+12b(b+4)$

Now you can distribute the 12b to b and +4. This leaves you with $5a^2-8b+12b^2+48b$

Now you can combine your like terms leaving you with $5a^2+12b^2-40b$ .

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3 years ago

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

morpeh [17]

Answer:

n>25/3

Step-by-step explanation:

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3 years ago

If John has $400 in his savings account. If he spends $50. how much will his account decrease?

olga55 [171]

Answer:

Step-by-step explanation:

it will decrease by 50 dollar which makes it 350

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3 years ago

Are these triangles congruent if so which method?

Vaselesa [24]

yes they are congruent with ASA

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4 years ago

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