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3 years ago

K(t) = 13t - 2 k(3) =

Mathematics

1 answer:

taurus [48]3 years ago

6 0

K(3)= 13*3-2= 39 - 2= 37
the answer to the question

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Area = 300 square feet

m_a_m_a [10]

Answer:

$Length=24.32$ feet

$width=12.32$ feet

Step-by-step explanation:

Let x be the width of a rectangle

Let l be the length of a rectangle

Let A be the area of rectangle

Given.

Length must be 12 feet longer than width

therefore

$Length=12+w$

$l=12+w$

Area of rectangle

$A=300$

We know that area of rectangle is

$A=l\times w$ ---------------------(1)

put all known values in equation 1

$300=(12+x)\times x$

$x^{2} +12x=300\\x^{2} +12x-300=0$

Find roots by this formula

$=\frac{-b\pm\sqrt{b^{2}-4ac}}{2a}$

$=\frac{-12\pm\sqrt{12^{2}-4(1)(-300)}}{2(1)}$

$=\frac{-12\pm\sqrt{1344}}{2}$

$x=-6+4\sqrt{21} \\x=-6-4\sqrt{21}$

$x=12.32\\x=-24.32$

check both value in equation 1

for $x=12.32$

$A=(12+12.32)\times 12.32$

$A=299.62$

$x=12.32$ is satisfy the equation

So The length of rectangle $l=12+12.32$ =24.32 feet

And width is 12.32 feet

3 0

4 years ago

Hi what is the answer to my question

Mashcka [7]

Answer:

594

Step-by-step explanation:

You multiply 18 by 3 by 11 :)

8 0

3 years ago

Read 2 more answers

What number represents having 5 dollars

marta [7]

Having 500 pennies, or 20 quarters

8 0

4 years ago

Read 2 more answers

7th and 8th graders at Marshall Middle are going on a field trip. The 7th graders use 10 small buses and 12 large buses for 504

Hunter-Best [27]

Answer:

by dividing 325 by 48.

The answer comes out to 6.77

But since the number of buses must be a whole number, we will need 7 buses to carry the 325 students and teachers on a field trip.

so the answer is 7 buses

3 0

3 years ago

Which point on the number line best represents the location of the square root of 92?

mote1985 [20]

Answer:

<h2>Point P</h2>

Step-by-step explanation:

$\sqrt{92} = 9.59166304663$

9.59 is closer to 10 than 9, so we can safely say that points m and n cannot be correct. Point q can also not be correct, because it is to close to 10.

Therefore, answer is: Point P

I'm always happy to help :)

5 0

3 years ago