All categories

3 years ago

Someone please help me outt!!! ill give branliest

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

4 0

Answer:

Excluded values are any given number(s) that can make an expression's denominator zero.

First you set the denominator equal to zero, like so:

(x-1)(x+7) = 0

Now you can see if you make each (x-1) and (x+7) equal to zero:

x-1=0 x=1

x+7= x=-7

Excluded values:

From my understanding 1 and -7 would be the excluded values.

You might be interested in

Write an equation where the left side is your power of 10 times n and the right side is the result of multiplying 0.1515... by t

Neko [114]

Answer:

$n10^x = 0.1515x$

Step-by-step explanation:

Required

Translate the statements to algebraic expression

Represent the power with x;

So, the left hand side is

Power of 10: $10^x$

Times n: $10^x * n$

The right hand side is:

0.1515 * power of 10: $0.1515 * x$

Equate the right hand side to the left:

$10^x * n = 0.1515 * x$

$n10^x = 0.1515x$

Hence;

The required expression is $n10^x = 0.1515x$

5 0

3 years ago

Write an equation for the cubic polynomial function whose graph has zeroes at 2, 3, and 5.

TiliK225 [7]

we know that

For a polynomial, if x=a is a zero of the function, then (x−a) is a factor of the function. The term multiplicity, refers to the number of times that its associated factor appears in the polynomial.

In this problem

If the cubic polynomial function has zeroes at 2, 3, and 5

then

the factors are

$(x-2)\\ (x-3)\\ (x-5)$

Part a) Can any of the roots have multiplicity?

The answer is No

If a cubic polynomial function has three different zeroes

then

the multiplicity of each factor is one

For instance, the cubic polynomial function has the zeroes

$x=2\\ x=3\\ x=5$

each occurring once.

Part b) How can you find a function that has these roots?

To find the cubic polynomial function multiply the factors and equate to zero

$(x-2)*(x-3)*(x-5)=0\\ (x^{2} -3x-2x+6)*(x-5)=0\\ (x^{2} -5x+6)*(x-5)=0\\ x^{3} -5x^{2} -5x^{2} +25x+6x-30=0\\ x^{3}-10x^{2} +31x-30=0$

therefore

the answer Part b) is

the cubic polynomial function is equal to

$x^{3}-10x^{2} +31x-30=0$

7 0

3 years ago

Read 2 more answers

A circular wading pool at a park has a radius of 21 feet. Find the circumference of the pool. Use 22/7 for .

lozanna [386]

A circular wading pool at a park has a radius of 21 feet. Find the circumference of the pool. Use 22/7 for .

C=2πr=2·π·21

≈131.94689ft

131.95

8 0

3 years ago

Read 2 more answers

Angel has $85 to spend . He spent $20 on food and saved the rest of his money for games. each game cost $5 Write an inequality t

galina1969 [7]

Answer:

85 = 5x + 20 is the inequality.

Step-by-step explanation:

Why is it right? Because I said so.

Just kidding. Here:

The cost of the games, 5, is multiplied by x, which is the amount of games that Angel will buy. To solve:

Subtract 20 from both sides:

65 = 5x

Divide 65 by 5.

The answer of the question is: Angel can buy 13 games. (Angel! That's a waste of 65 bucks!)

8 0

3 years ago

the lateral area of a cone with a diameter of 15 yards is about 287.5 square yards. to the nearest tenth, what is the slant heig

irina1246 [14]

Lateral area of the cone is given by:
LA=πr√(h²+r²)
where:
h=height
r=radius
Given that LA=287.5 yd² and r=(15/2) yds, then the height will be:
287.5=7.5π√(h²+7.5²)
solving for h we get:
(287.5/7.5π)²=h²+7.5²
thus
h²=(287.5/7.5π)²-7.5²
h²=63.1851597
To get the slant height we use Pythagorean theorem.
c²=a²+b²
a²=h², b²=7.5²
thus
c²=h²+7.5²
c²=63.1851597+56.25
c²=119.4351597
c=10.92864~10.9 yards

3 0

3 years ago