During the month of February, Fabulous Feet Shoe Mart sold 30 pairs of red loafers. After an ad campaign to boost sales, they sold 39 pairs in March. Find the percent of increase in sales.

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Answer 1

Answer: between 30-33 % good luck what is this for?

Answer 2

Answer: 32.5? that could be an accuret answer

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Hello! I could use some help with this algebra question:)

Answers

Answer:

f(-2) = -14

f(4) = -13

Step-by-step explanation:

(in picture)

Find the real or imaginary solutions of the equation by factoring. x^4-8x^2=-16

Answers

ANSWER
$x=2$ or $x=-2$
EXPLANATION

The given equation is
${x}^(4) - 8 {x}^(2) = - 16.$

We set everything equal to zero to obtain,

${x}^(4) - 8 {x}^(2) + 16 = 0$

We rewrite the leading term to obtain,

${( {x}^(2) )}^(2) - 8( {x}^(2)) + 16 = 0$

This has now become a quadratic equation in
${x}^(2)$

We split the middle term to get,

${( {x}^(2) )}^(2) - 4 {x}^(2)- 4x^2+ 16 = 0$

We factor to get,

${x}^(2) (x^2-4)-4( {x}^(2)-4) = 0$

We factor further to get,

$( {x}^(2) -4)(x^2-4)= 0$

This gives

$( x-2)(x+2)(x-2)(x+2)= 0$

$( x-2)^2(x+2)^2= 0$

$x=2$ or $x=-2$

Use the Factor Theorem to determine whether the first polynomial is a factor of the second polynomial. x - 5; 3x2 + 7x + 40

Answers

Answer:

The polynomial (x -5) is not a factor of second polynomial $3x^2 + 7x + 40$

Step-by-step explanation:

Factor theorem states that if you divide a polynomial p(x) by a factor x -a of that polynomial, then you will get a zero remainder.

i.,e $p(x) = (x-a)q(x)$ which means that if x - a is a factor of p(x), then the remainder, when we do synthetic division by x= a, will be zero.

Determine whether the first polynomial is a factor of the second polynomial.

Given the polynomial: $f(x)=3x^2 + 7x + 40$

For $x-5$ to be a factor of $f(x)=3x^2 + 7x + 40$ , the factor theorems implies that x = 5 must be a zero of f(x).

Now, to test whether $x-5$ is a factor;

Set x -5 = 0

⇒x = 5

Then,

we will use synthetic division method to divide f(x) by x =5

you can see the figure as shown below in the attachment.

Since, the remainder is 150 which is not equal to zero, then Factor theorem says that (x-5) is not a factor of $3x^2 + 7x + 40$

Answer:

No,(x-5) is not a factor of $3x^2+7x+40$

Explanation:

Factor theorem states that if (x-a) is a factor of the function f(x) then f(a) = 0.

We can use this theorem to check whether a polynomial is a factor of other polynomial or not.

Further Explanation:

Here, we have to check if (x-5) is a factor of $3x^2+7x+40$ or not.

For this we can use the above mentioned factor theorem.

In our case,

a = 5

and $f(x)=3x^2+7x+40$

So, we find f(5) and see if it is zero or not. If f(5) = 0 then (x-5) must be the factor the polynomial.

$f(5)=[tex]3(5)^2+7(5)+40\n\n=75+35+40\n\n=150\neq0$

Since, f(5) is not zero. Hence, from factor theorem, (x-5) is not a factor of $3x^2+7x+40$

Learn More:

brainly.com/question/12482195 (Answered by Kudzordzifrancis)

brainly.com/question/11378552 (Answered by Alinakincsem)

Keywords:

Factor theorem, Remainder theorem.

The container that holds the water for the football team is 2/3full. After pouring out 4 gallons of water, it is 4/9full. How many gallons can the container hold?

Answers

I hope this helps you

Before 2017, smartphones by major manufacturers all had screens with a aspect ratio. In 2017, two major brands released phones with screens in an aspect ratio. However they still reported their screen size using the same diagonal length of the earlier phones, 5.8 inches. How did the change in aspect ratio affect the screen size, if at all?

Answers

Answer:

the question is missing the numbers, so I looked for a similar one and found that screens back in 2017 had a 16:9 ratio and since then it changed to 18.5:9 ratio

the area of the screen is b x a x 0.5

we can form triangles:

old aspect ratio (16:9):

a = 1.778b

h = √(a² + b²)

5.8 = √[(1.778b)² + b²]

5.8 = √(3.16b² + b²)

5.8² = 4.16b²

33.64 = 4.16b²

b² = 33.64 / 4.16 = 8.0865

b = √8.0865 = 2.8437

a = 2.8437 x 1.778 = 5.056

area = 2.8437 x 5.056 x 0.5 = 7.19 in²

new aspect ratio (18.5:9):

a = 2.0556b

h = √(a² + b²)

5.8 = √[(2.0556b)² + b²]

5.8 = √(4.2253b² + b²)

5.8² = 5.2253b²

33.64 = 5.2253b²

b² = 33.64 / 5.2253 = 6.4379

b = √6.4379 = 2.5373

a = 2.5373 x 2.0556 = 5.2157

area = 2.5373 x 5.2157 x 0.5 = 6.62 in²

the actual screen area decreased by 0.57 in² or 7.93%

How do you round 18.194 to the tenths hundredths and ones

Answers

If you want to round it to the tenths it will be 18.200 because if the number is greater than 5 ( 9) then u round up 1 number. If it was not a 9 and it was for example 2, it will be 18.190. If it is less than 5 then u round to 0

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