3 years ago

Evaluate a + b2 for a = 2 and b = 3.

Mathematics

2 answers:

navik [9.2K]3 years ago

7 0

Answer:///////

2 + 6

KIM [24]3 years ago

5 0

The answer is 8
2 + (3×2) = 8

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e-lub [12.9K]

Answer: y=-2x+6

Step-by-step explanation:

$m=\frac{6-2}{0-2}=\frac{4}{-2}=-2$

So $y=2x+b$ . We can substitute (0, 6) to get:

6 = 2(0)+b

b=6.

Meaning y=-2x+6.

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3 years ago

At 4:30pm, the thermometer outside of Yasmine's window read 40*C. It had risen 8* between noon and 4:30pm and 5* between 7:00am

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3 years ago

Candice spent 5 1/4 hours doing her homework. Her brother, Ronald, spent 1/2 that number of hours doing his homework. How many h

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Let

x-----> the number of hours that Candice spent doing her homework

y-----> the number of hours that Ronald spent doing his homework

we know that

$x=5\frac{1}{4}\ hours$

convert mixed number to an improper fraction

$5\frac{1}{4}\ hours=\frac{5*4+1}{4}= \frac{21}{4}\ hours$

$x=\frac{21}{4}\ hours$ -------> equation A

$y=\frac{1}{2}x$ ------> equation B

Substitute equation A in equation B

$y=\frac{1}{2}*\frac{21}{4}=\frac{21}{8}\ hours$

convert an improper fraction to a mixed number

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therefore

the answer is the option B

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3 years ago

Read 2 more answers

Apple pies cost $5.75 each and cherry pies cost $6.50 each.Susan bought nine pies for a total cost of $53.25.There is no tax cha

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5.75a + 6.5c = 53.25

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c = 9 - a

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5.25 = 0.75a

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c = 2

she bought 7 apple pies

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2 years ago

PLEASE HELP ME!!!! Please show work thank you!

Vaselesa [24]

Answer:

use khan academy

Step-by-step explanation:

khanacedemy.com

dont cheat dude

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3 years ago