Will give brainiliest to whoever answers it and gives it step by step please help me

Answer:

Step-by-step explanation:

f(x) = 5x² - x + 2

Using the remainder theorem

To find the reminder substitute the value of x into the above function and solve

That's

x + 1 = 0

x = - 1

So we have

f(-1) = 5(-1)² - ( - 1) + 2

f(-1) = 5 + 1 + 2

f(-1) = 6 + 2

We have the final answer as

Hope this helps you

Answer:

8n, 40 miles in 5 weeks.

Step-by-step explanation:

given that nate runs 8 miles each week.

Hence in n weeks, he will run

8 miles per week x n weeks

= 8n miles

in 5 weeks, n = 5.

Substituting this into the expression,

8(5) = 40 miles

Answer:

C.

Step-by-step explanation:

"Two more than three times a number is seven"

Add 2 to 3n and set it equal to 7.

The equation that represents the mentioned condition will be 3n + 2 = 7. Then the correct option is C.

The expression is defined as the relations of the numbers and the variables combined together to form the equation by the use of mathematical algebraic symbols like equal greater than or less than.

From the statement, two more than three times a number is seven.

Let n be the number. The three times a number is then written as,

⇒ 3n

And the expression that is 2 more than 3n is written as follows:

⇒ 2 + 3n

The expression equals 7. The equation is then given as,

3n + 2 = 7

The equation that represents the mentioned condition will be 3n + 2 = 7. Then the correct option is C.

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Answer:

23

Step-by-step explanation:

Answer:

A.P. : 10, 20, 30, 40, 50

G.P. : 5, 10, 20, 40, 80 .

Step-by-step explanation:

It is given that fourth term of a sequence is 40.

It is not given that whether the sequence is A.P. or G.P.

We need to write two different sequences that satisfy the given condition.

For A.P.,

Required sequence : 10, 20, 30, 40, 50

Here, first term is 10, common difference is 10.

For G.P.,

Required sequence : 5, 10, 20, 40, 80

Here, first term is 5, common ratio is 2.

Therefore, the two sequences are 10, 20, 30, 40, 50  and 5, 10, 20, 40, 80 .

Answer:

  48/132

Step-by-step explanation:

The length of 1.5-inch screws is ...

  36 × 1.5 in = 54 in

The length of 2-inch screws is ...

  24 × 2 in = 48 in

The length of 2.5-inch screws is ...

  12 × 2.5 = 30 in

The total length of all screws is ...

  54 in + 48 in + 30 in = 132 in

Then the ratio of 2-in screw length to total screw length is ...

  2-in : total = 48 : 132

Answer:

A. the reduction of variance

Step-by-step explanation:

If the p bakue gets smaller, the smaller the p- value the stronger the evidence that we can or we should totally reject and not accept the null hypothesis.

Id the p value is lower, the result is trumpeted as significant, but if higher,it is not significant.

So Smaller p-values indicate more evidence in support of the the reduction of variance

Answer: 504 ways

Step-by-step explanation:

given data:

no of people = 6

no of offices = 3

no of people in each office = 2

solution:

first we need to find the number of ways 6 people can be shared in 2 or pairs as this is a combination problem.

= 6C2

= 15 ways

ways to place a pair of 2 in 3 offices

= 15 * 3

= 45ways.

using the remaining 4 people we have 4C2 = 6 ways

in the remaining 2 offices

6 * 2 = 12ways

withour conditions

= 45 * 12

= 540ways

considering the constraint

= 4C2

= 6ways

shared in 3 offices

= 6 * 3

= 18 ways

remaining 2 offices

= 18 * 2

= 36 ways

Without constraints - With constraints

= 540 - 36

= 504ways

90 ways.

Given:

Six people are to be assigned in three offices, two people per office.

Thinking of this problem from the perspective of offices themselves picking persons, we get this:

Firstly out of 6 person, 2 person are chosen in [tex]^6C_2[/tex] ways.

Secondly, from rest of the 4 persons, 2 people are chosen in [tex]^4C_2[/tex] ways.

Then rest of the 2 persons are chosen from rest persons in [tex]^2C_2[/tex] ways.

Applying law of multiplication for number of ways:

Total number of ways = [tex]^6C_2 \times ^4C_2 \times ^2C_2 = 15 \times 6 \times 1 = 90[/tex]

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Answer:

60

Step-by-step explanation:

1, Extand line y for which y intercepts CB at point K

2, line y is a straight line and thus KAB=180-110=70

3, AY parallel to CX thus angle CKA=130 which is a alternative angle of BCX (if you can't see then try to extend CX as well

4,BKA=180-130=50 as BC is a straight line

5, the sum of interior angle of a triangle is 180, and we have KAB and BKA, thus angle ABC = 180-KAB-BKA=180-70-50=60

Answer: the demand function is D(x) = 4000/x + 2

Step-by-step explanation:

Given that

D'(x) = - 4000 / x²

Now d(D(x)/dx = - 4000/x²

so we integrate with respect to x

∫ d(D(x)) = - ∫ (4000/x²) dx = -4000 x⁻¹/-1 + C

⇒ D(x) = 4000/x + C

where C is a constant

Given that; x = 4 and D(x) = 1002

so we substitute

1002 = 4000 / 4 + C

1002 = 1000 + C

C = 1002 - 1000

C = 2

so  D(x) = 4000/x + C ⇒ D(x) = 4000/x + 2

Therefore the demand function is D(x) = 4000/x + 2

Answer:

0.6%

Step-by-step explanation:

1/1639 is 0.0006, and to get the percent from that just move the decimal point twice to the right.

Answer:

9(x² + 5y⁴) (x² - 5y⁴)

Step-by-step explanation:

9x⁴ - 225y⁸

factor out a 9

9(x⁴ - 25y⁸)

factor (x⁴ - 25y⁸)

(x⁴ - 25y⁸)

x² • x² = x⁴

5y⁴ • -5y⁴ = -25y⁸

(x² + 5y⁴) (x² - 5y⁴)

↓

9(x² + 5y⁴) (x² - 5y⁴)

Answer:

OK its that question

Answer:

f(x) = 7/8 + n=0 = 7/8 so the answer you looking for would be: n=0

Answer: 8

Step-by-step explanation: Think of the 32 in this problem as 32/1.

So rewriting, we have 1/4 × 32/1.

Now, the 4 and 32 cross-cancel to 1 and 8.

So we have 8/1 or just 8.

Answer:

(4,3)

Step-by-step explanation:

Point V lies in the Ist quadrant . and the co-ordinates are (4,3)

Answer:

87

Step-by-step explanation:

[tex]\frac{96+85+90+92+x}{5} = 90\\[/tex]

[tex]\frac{353+x}{5} = 90[/tex]

[tex]353+x= 5(90)\\[/tex]

[tex]353+x=450[/tex]

[tex]x=87[/tex]

Answer:

Step-by-step explanation:

Hello, please consider the following.

We take y different from -5, as dividing by 0 is not allowed and we can compute as below.

[tex]\dfrac{y^2+3y-10}{3y+15}=\dfrac{(y+5)(y-2)}{3y+15}\\\\=\dfrac{(y+5)(y-2)}{3(y+5)}\\\\\large \boxed{\sf \bf \ \ =\dfrac{y-2}{3} \ \ }[/tex]

Thank you

Answer:

- 4x^8 + 3x^4 + 3x^2 + 9x

Step-by-step explanation:

First simplify

Put in standard form

Answer:

-31

Step-by-step explanation:

-3 to the power of 2 means -3*-3 and since negative multiplied by negative is positive, that will give 9

9 + (2-6)(10)

9+-4(10)

9+ -40

9-40

-31

Answer:

250 boys

Step-by-step explanation:

We know that the ratio is 9:10 from girls to boys

Take 225 and divide it by 9

225 ÷ 9 = 25

So we know that 25 is a factor of 225

We can the number of boys and multiply it by 25 to get 250

If we put it in the ratio form:

225:250 = 9/10

Check work:

25 x 9 = 225

25 x 10 = 250

Girls :Boys = 9:10

Total girls= 225

9=225

10=10/9×225

=250

NB: It will 250 because 9 is going to cancel 225

Answer:

36

Step-by-step explanation:

2 x 3 x 3 x 2 = 36

Answer:

[tex]\frac{3}{20}[/tex] or [tex]0.15[/tex] (they're the same thing)

Step-by-step explanation:

I hope this helps!

Answer:

there are no zeros in f(x)

Step-by-step explanation:

[tex]f(x)=3x^2+9x+12\\\\f(x)=0\\\\0=3x^2+9x+12\\\\[/tex]

to know if the equation has real solutions we have to know if

[tex]b^2-4ac\geq 0[/tex]

a=3

b=9

c=12

[tex]9^2-4*3*12\\\\=81-144\\\\=-63[/tex]

so there aren't real solutions

hence there aren't any zeros in f(x)

We have the equation:

[tex]9x^2-12x+4=0[/tex]

so:

[tex]a=9\qquad b=-12\qquad c=4[/tex]

and:

[tex]\Delta=b^2-4ac=(-12)^2-4\cdot9\cdot4=144-144=\boxed{0}[/tex]

This equation has one solution.

Answer:   [tex]\dfrac{3}{2}x^{2}-\dfrac{7}{x}+\dfrac{11}{2x^2}+C[/tex]

Step-by-step explanation:

[tex]\int {\dfrac{3x^4+7x-11}{x^3}} \, dx \\\\\\= \int \bigg({\dfrac{3x^4}{x^3}} +\dfrac{7x}{x^3}+\dfrac{-11}{x^3}\bigg)\, dx\\\\\\= \int \bigg(3x+7x^{-2}-11x^{-3}\bigg)\, dx\\\\\\=\dfrac{3x^{1+1}}{1+1}+\dfrac{7x^{-2+1}}{-2+1}+\dfrac{-11x^{-3+1}}{-3+1}+C\\\\\\=\dfrac{3x^{2}}{2}+\dfrac{7x^{-1}}{-1}+\dfrac{-11x^{-2}}{-2}+C\\\\\\=\large\boxed{\dfrac{3x^{2}}{2}-\dfrac{7}{x}+\dfrac{11}{2x^2}+C}[/tex]

Answer:

A

Step-by-step explanation:

The area of a circle is given by the formula:

[tex]A=\pi r^2[/tex]

Where A is the area and r is the radius.

Since we already know the area, we can plug it in and solve for r. Thus:

[tex]1808.64=\pi r^2\\[/tex]

Divide both sides by π. We can use 3.14 as an approximation. The πs on the right cancel out:

[tex]1808.64\div(3.14)=r^2\\r^2=576[/tex]

Take the square root of each side:

[tex]\sqrt{r^2}=\sqrt{576}[/tex]

The squares on the left cancel. The root of 576 is 24:

[tex]r=24[/tex]

Therefore, the radius is 24.

Answer:

I agree 24 miles

Step-by-step explanation:

the person above is correct

Answer:

The amount required is  [tex]l_t = 1586 \ m[/tex]

Step-by-step explanation:

From the question we are told that

   The length of one side is  [tex]l_1 = 435 \ m[/tex]

    The length  of the second side is  [tex]l_2 = 656 \ m[/tex]

     The angle between the line of sight of second and third side is  [tex]\theta = 49^o \\[/tex]

Generally using cosine rule the third side is evaluated as

     [tex]l_3^2 = l_1 ^2 + l_2^2 - 2 * l_1 * l_2 cos (\theta )[/tex]

=>    [tex]l_3^2 = 435 ^2 + 656^2 - 2 * 453* 656 cos (49)[/tex]

=>   [tex]l_3 = 495 \ m[/tex]

The total  amount of face required is  mathematically evaluated as

       [tex]l_t = l_1 + l_2 + l_3[/tex]

   [tex]l_t = 435 + 656 + 495[/tex]

   [tex]l_t = 1586 \ m[/tex]

this is the answer to your question x=50

Step-by-step explanation:

3x-2x=50

1x=50

The value of x for the given equation is given as x = 50.

A linear equation can be solved by equating the LHS and RHS of the equation following some basic rules such as by adding or subtracting the same numbers on both sides and similarly, doing division and multiplication with the same numbers.

The given equation is as below,

3x = 2x + 50

It can be solved as follows,

3x = 2x + 50

=> 3x - 2x = 50

=> x = 50

Hence, the solution of the given linear equation is x = 50.

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Answer:

Step-by-step explanation:

16