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1 year ago

F(x)=-5x+1x=−5x+1, find f(6)

Mathematics

1 answer:

vaieri [72.5K]1 year ago

3 0

Answer:

f(x)=-5x+1x=−5x+1, find f(6)

f(6)= -5(6)+1(6)=-5(6)+1

F(6)=-24,-29

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The moon is a sphere with radius of 959 km. Determine an equation for the ellipse if the distance of the satellite from the surf

Sergeeva-Olga [200]

Answer:

$\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1$

Step-by-step explanation:

An ellipse is the locus of a point such that its distances from two fixed points, called foci, have a sum that is equal to a positive constant.

The equation of an ellipse with a center at the origin and the x axis as the minor axis is given by:

$\frac{x^2}{b^2}+\frac{y^2}{a^2} =1 \\\\where\ a>b$

Since the distance of the satellite from the surface of the moon varies from 357 km to 710 km, hence:

b = 357 km + 959 km = 1316 km

a = 710 km + 959 km = 1669 km

Therefore the equation of the ellipse is:

$\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1$

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2 years ago

A leading medical journal has claimed that 71% of roller coaster rides get extreme anxiety just before the ride begins. A popula

Anastasy [175]

Answer:

Step-by-step explanation:

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2 years ago

27x+3=6 what does x equal

Digiron [165]

Answer:

1/9

Step-by-step explanation:

27x+3 = 6

-3 -3

27x = 3

/27 /27

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2 years ago

Read 2 more answers

Y = 16x + 8

sineoko [7]

Answer:

x + 2y = 4

x − y = − 3

x − y =9 , x + y=6

x + y =4,

x− y =2

Step-by-step explanation:

7 0

2 years ago

The sum of two numbers is 75. The second number is<br> less than twice the first. Find the numbers.

Lera25 [3.4K]

Answer:

First number =26

Second number =49

Step-by-step explanation:

Question:

The sum of two numbers is 75. The second number is 3 less than twice the first. Find the numbers.

Given:

Sum of two numbers = 75

The second number is 3 less than twice the first.

To find the numbers.

Solution:

Let the first number be = $x$

Let second number be = $y$

The sum equation can be given as:

$x+y=75$

It is given that the second number is 3 less than twice the first.

This can be given as:

$y=2x-3$

Substituting the value of $y$ in terms of $x$ in the sum equation.

$x+(2x-3)=75$

Combining like terms.

$3x-3=75$

Adding 3 both sides.

$3x-3+3=75+3$

$3x=78$

Dividing both ides by 3.

$\frac{3x}{3}=\frac{78}{3}$

$x=26$

Substitution $x=26$ in the second equation to find $y$ .

$y=2(26)-3\\y=52-3\\\therefore y=49$

Thus, first number =26 and second number =49.

4 0

2 years ago