2 years ago

F(x) = 4x2 + 5. find the value of f(x) when x = 2 and select the correct answer below. 13

1 answer:

4 0

You weren't clear on the equation so I did it both ways. It didn't really matter though because both equations had the same answer. ‍♀️

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Walter and Helen are asked to paint a house. Walter can paint the house by himself

Rudik [331]

Answer:

it will take 28 hour which is 1 day 4 hour

Step-by-step explanation:

if they work together thats mean we have to add. we have to add 12+16 which is equal to 28 hour.....

hope ot helps

4 0

2 years ago

A dogs weighs 7 pounds and triples each year for two years. How much does the dog weigh?

Tanya [424]

Year 1: 7lbs x 3years= 21lbs
Year 2: 21lbs x 3years = 63lbs

5 0

2 years ago

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Nalia worked 3.5 hours more than lisa together they worked a total of 18 hours lisa worked h hours

andre [41]

Answer:

7.25 and 10.75 Hours

Step-by-step explanation:

Total hours Nalia and Lisa worked = 18 Hours

Nalia worked 3.5 hours then Lisa which is $h$ hours

⇒ $h + (h + 3.5) = 18$

$2h + 3.5 = 18\\2h = 18 - 3.5\\2h = 14.5\\h = \frac{14.5}{2} \\h = 7.25$

Lisa has worked for 7.25 hours

Nalia has worked for = 7.25 + 3.5 = 10.75 hours

3 0

3 years ago

Solve the initial-value problem<br><br> y' = x^4 - \frac{1}{x}y, y(1) = 1.

natta225 [31]

The ODE is linear:

$y'=x^4-\dfrac yx$

$y'+\dfrac yx=x^4$

Multiplying both sides by $x$ gives

$xy'+y=x^5$

Notice that the left side can be condensed as the derivative of a product:

$(xy)'=x^5$

Integrating both sides with respect to $x$ yields

$xy=\dfrac{x^6}6+C$

$\implies y(x)=\dfrac{x^5}6+\dfrac Cx$

Since $y(1)=1$ ,

$1=\dfrac16+C\implies C=\dfrac56$

so that

$\boxed{y(x)=\dfrac{x^5}6+\dfrac5{6x}}$

4 0

3 years ago

How much is 70% of 140 ?<br><br>thankyou ~

Paul [167]

Answer:

Step-by-step explanation:

Of means multiply

70% * 140

.70 * 140

3 0

2 years ago

Read 2 more answers