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3 years ago

If point B (-5, -6) is reflected over the x -axis, what will its coordinates be?

Mathematics

1 answer:

PIT_PIT [208]3 years ago

3 0

Answer:

-5, 6 when you reflect over the x axis you have to flip the sign of the y point.

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Find a formula for the nth term of the arithmetic sequence:

Zolol [24]

-2\8 = a negative so we will multiply

4 0

3 years ago

Read 2 more answers

Identify each point as a solution of the system or not a solution of the system.

lubasha [3.4K]

Answer:

see below

Step-by-step explanation:

Plot the points on the given graph. The ones that fall in on a solid line at the edge of the doubly-shaded area, or fall in the doubly-shaded area, are part of the solution set.

(0, 4) on the dashed line — not a solution

(-2, 4) on red line in blue area — solution

(0, 5) in doubly-shaded area — solution

(–2, 7) in doubly-shaded area — solution

(–4, 1) in blue area — not a solution

(–1, 1) on red line outside blue area — not a solution

(–1.5, 3.5) in doubly-shaded area — solution

6 0

3 years ago

A given field mouse population satisfies the differential equation dp/dt=.4p-450 where p is the number of mice and t is the time

Flura [38]

Answer:

a) 7.78 months

b) 1116

Step-by-step explanation:

Given -

$\frac{dP}{dt} = 0.4p-450$

Integrating the above equation with respect to time, we get -

$\int\ \frac{dP}{0.4p-450} = \int\ dt\\$

let us define new variable x

$x = 0.4p - 450 \\dx = 0.4 dy$

substituting these values in above integral equation, we get -

$\frac{1}{0.4} \int\ \frac{dx}{x} = \int\ dt\\ln x = 0.4 t + C\\x = ce^{0.4t}$

$P (t) = \frac{C}{0.4} e^{0.4t} +1125\\$

at t = 0, P (0) = 1075, using this condition, we get -

$\frac{c}{0.4} = -50\\P(t) = 50 e^{0.4t} +1125 \\t = 7.78\\P(0) = 1125 - \frac{1125}{e^{4.8}} = 1116$

7 0

3 years ago

An object is dropped from 39 ft below the tip of the pinnacle atop of 363 ft tall building. The height h of the object after t s

Ksenya-84 [330]

Answer:

4.5 seconds pass before reaching the ground

Step-by-step explanation:

The height of the object is given by the following equation:

$h(t) = -16t^{2} + 324$

How many seconds pass before reaching the ground

It hits the ground when h(t) = 0. So

$h(t) = 0$

$-16t^{2} + 324 = 0$

$16t^{2} = 324$

$t^{2} = \frac{324}{16}$

$t = \pm \sqrt{\frac{324}{16}}$

$t = \pm 4.5$

There are no negative instants of time, so only the positive answer interests to us.

4.5 seconds pass before reaching the ground

5 0

3 years ago

What is <br> (2x - 5)(x + 4)

Lubov Fominskaja [6]

Answer:

2 · x² - 20

Step-by-step explanation:

2x - 5 · x + 4

2x · x - 20

2x² - 20

2 · x² - 20

3 0

3 years ago