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3 years ago

Factor the following n^2 + 6n

Mathematics

2 answers:

Veronika [31]3 years ago

4 0

Answer:

n(n + 6)

Step-by-step explanation:

n² + 6n = n(n + 6)

masha68 [24]3 years ago

3 0

Answer:8n?

Step-by-step explanation:

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Ling wants to determine the average distance she travels each day in her car. She records the odometer reading, which measures t

erica [24]

Answer:

$Mean = 10724.29\ mi$

Step-by-step explanation:

Given

$n = 7$ --- days

See attachment for odometer readings

Required

The mean of the distance

Mean is calculated as:

$Mean = \frac{\sum x}{n}$

So, we have:

$Mean = \frac{10150 + 10211 + 10424 + 10769 + 10884 + 11155 + 11477}{7}$

$Mean = \frac{75070}{7}$

$Mean = 10724.2857143$

Approximate

$Mean = 10724.29\ mi$

5 0

2 years ago

Evaluate the function below for f(3)<br> f (x) = 3x2 - 5<br> what’s the answer

Novay_Z [31]

The answer is 13 because you would plug in 3(3) which is 9 then you multiply (9)(2) which is 18 they you subtract 18-5 which equals 13

4 0

3 years ago

The prism shown has a volume of 798 cm3.

a_sh-v [17]

Answer:

10.5 cm

Step-by-step explanation:

Volume = base area × height

798 = (9.5 × 8) × height

height = 798/76

height = 10.5

4 0

3 years ago

Work out the inverse function <br><br>y=x-2

AURORKA [14]

Answer:

x + 2

Step-by-step explanation:

Replace the x with y.

Making is x = y -2

Solve for x=y-2

and you get x+2

7 0

2 years ago

Read 2 more answers

For which positive integer values of $k$ does $kx^2+20x+k=0$ have rational solutions? Express your answers separated by commas a

Musya8 [376]

Answer:

-10,10

Step-by-step explanation:

The given quadratic equation is

$k {x}^{2} + 20x + k = 0$

The discriminant of this equation is given by;

$D = {b}^{2} - 4ac$

where a=k, b=20, c=k

For rational solutions, the discriminant must be zero.

${20}^{2} - 4 \times k \times k = 0$

Simplify to get:

$400 - 4 {k}^{2} = 0$

This implies that:

$400 = 4 {k}^{2}$

$100 = {k}^{2}$

Take square root to get:

$k = \pm\sqrt{100}$

$k = \pm10$

$k = - 10 \: or \: k = 10$

3 0

3 years ago