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3 years ago

Plz Help Me !!!! I will give out branliest !!!

Mathematics

2 answers:

dlinn [17]3 years ago

5 0

Answer:

41.6167

Step-by-step explanation:

I believe this is the answer because the two triangles are similar.

So, every side will have similar ratios.

The ratio of the left sides of the triangles (M-N) is 1 : 2.667. Or, 2 2/3.

So, if you divide 81.9 by 2 2/3...

81.9 / 2 1/3 ≈ 41.6167

Delicious77 [7]3 years ago

4 0

Answer:

46 im not 100% sure but im 80%

Step-by-step explanation:

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Earth is rotating around the Sun about 18.6 miles

mariarad [96]

Step-by-step explanation:

miles travelled = speed * time

= 18.6 * 4.8 = 89.28 miles

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3 years ago

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Suppose you deposit $134,000 into an account paying 8% simple annual interest, and that you won't touch the

Sergeu [11.5K]

134,000x 0.08= 10,720= the money you get every year from interest
1,000,000/10,720= 93.28... or 93 years

7 0

3 years ago

A rocket is launched from a tower. The height of the rocket, why in feet is related to the time after launch, X and seconds, by

Maru [420]

Given:

Consider the height of the rocket, in feet after x seconds of launch is

$y=-16x^2+152x+74$

To find:

The time at which the rocket will reach its max, to the nearest 100th of a second.

Solution:

We have,

$y=-16x^2+152x+74$

It is a quadratic polynomial with negative leading coefficient. So, it is a downward parabola.

Vertex of a downward parabola is the point of maxima.

To find the time at which the rocket will reach its max, we need to find the x-coordinate of the vertex.

If a quadratic function is $f(x)=ax^2+bx+c$ , then the vertex is

$Vertex=\left(-\dfrac{b}{2a},f\left(-\dfrac{b}{2a}\right)\right)$

Here, $a=-16,b=152,c=74$ .

So,

$-\dfrac{b}{2a}=-\dfrac{152}{2(-16)}$

$-\dfrac{b}{2a}=-\dfrac{152}{-32}$

$-\dfrac{b}{2a}=4.75$

So, x-coordinate of the vertex is 4.75.

Therefore, the rocket will reach its max at 4.75 second.

8 0

3 years ago

What is the value of two cubed?

evablogger [386]

Answer:

the value of 2 cube is 8

I hope it helps

have a great day

$#Liliflim$

3 0

3 years ago

Read 2 more answers

Need help and will be giving Brainliest

Katena32 [7]

Answer:

x-intercept (s):

For this case h (x) = 0

x2 - 2x - 8 = 0

(x-4) * (x + 2) = 0

x1 = 4

x2 = -2

y-intercept:

For this case x = 0

h (0) = (0)2 - 2 (0) - 8

h (0) = - 8

vertex:

We derive the equation:

h '(x) = x2 - 2x - 8

h (x) = 2x - 2

We match zero:

2x-2 = 0

x = 2/2

x = 1

We evaluate the function for x = 1

h (1) = (1)2 - 2 (1) - 8

h (1) = 1 - 2 - 8

h (1) = -9

The vertex is:

(1, -9)

axis of symmetry of the function:

x = 1

Step-by-step explanation:

hope it helps

6 0

3 years ago