help me answer this question please​

Answer:

0.1714285714285714

Step-by-step explanation:

Answer:

I believe the correct answer is option B. 7 x 10

Step-by-step explanation:

Hope this helps if not I'm very sorry ^^"

Answer:

7*8

17*8=(10*8)+(7*8)

136=80+56

136=136

Answer:

Step-by-step explanation:

Which Method Should Be Used to Solve a Quadratic Equation? Quadratic equations are of the form ax2 + bx + c = 0 where a, b and c are real numbers, a ≠ 0. Quadratic equations have two solutions, but it is possible that one solution may repeat. happy to help

Answer:

C The diameter of circle P is the same length as the radius of circle Q.

Step-by-step explanation:

Answer:

[tex]\frac{140}{3}, \frac{140}{3}, \frac{140}{3}[/tex]

Step-by-step explanation:

Let the numbers be [tex]x, y\ and\ z.[/tex]

Such that:

[tex]x + y + z = 140[/tex]

Make z the subject

[tex]z = 140 -x - y[/tex]

For their product to be maximum, we have:

[tex]f(x,y,z) = xyz[/tex]

Substitute [tex]z = 140 -x - y[/tex] in [tex]f(x,y,z) = xyz[/tex]

[tex]f(x,y) = xy(140 - x - y)[/tex]

Open bracket

[tex]f(x,y) = 140xy - x^2y - xy^2[/tex]

Differentiate w.r.t x and y

[tex]f_x=140y - 2xy - y^2[/tex]

[tex]f_y=140x - x^2 - 2xy[/tex]

Since the products are maximum, then [tex]f_x = f_y = 0[/tex]

For [tex]f_x=140y - 2xy - y^2[/tex]

[tex]140y - 2xy - y^2 = 0[/tex]

Factorize:

[tex]y(140 - 2x - y) = 0[/tex]

Split

[tex]y = 0\ or\ 140 - 2x - y = 0[/tex]

Make y the subject

[tex]y = 0\ or\ y = 140 - 2x[/tex]

For [tex]f_y=140x - x^2 - 2xy[/tex]

[tex]140x - x^2 - 2xy = 0[/tex]

---------------------------------------------------

Substitute y = 0

[tex]140x - x^2 -2x*0 = 0[/tex]

[tex]140x - x^2 = 0[/tex]

Factorize

[tex]x(140 - x)= 0[/tex]

[tex]x = 0\ or\ 140-x = 0[/tex]

[tex]x = 0\ or\ x = 140[/tex]

---------------------------------------------------

Substitute [tex]y = 140 - 2x[/tex]

[tex]140x - x^2 - 2xy = 0[/tex]

[tex]140x - x^2 - 2x(140 - 2x) = 0[/tex]

[tex]140x - x^2 - 280x + 4x^2 = 0[/tex]

Re-arrange

[tex]4x^2 -x^2 +140x - 280x = 0[/tex]

[tex]3x^2 -140x = 0[/tex]

Factor x out

[tex]x(3x - 140) = 0[/tex]

Divide through by x

[tex]3x - 140 = 0[/tex]

[tex]3x = 140[/tex]

[tex]x = \frac{140}{3}[/tex]

Recall that: [tex]y = 140 - 2x[/tex]

[tex]y = 140 - 2 * \frac{140}{3}[/tex]

[tex]y = 140 - \frac{280}{3}[/tex]

Take LCM

[tex]y = \frac{140*3-280}{3}[/tex]

[tex]y = \frac{140}{3}[/tex]

Recall that:

[tex]z = 140 -x - y[/tex]

[tex]z = 140 - \frac{140}{3} - \frac{140}{3}[/tex]

Take LCM

[tex]z = \frac{3 * 140- 140 - 140}{3}[/tex]

[tex]z = \frac{140}{3}[/tex]

Hence, the numbers are:

[tex]\frac{140}{3}, \frac{140}{3}, \frac{140}{3}[/tex]

Answer:

y=3(x+3)^2-8

Step-by-step explanation:

Vertex form:

y=a(x-h)^2+k

h=-3, k=-8

y=a(x+3)^2-8

sub (-4,-5)

-5=a(-4+3)^2-8

a=3

y=3(x+3)^2-8

9514 1404 393

Answer:

  62°

Step-by-step explanation:

Angles A and H are alternate exterior angles, so are congruent.

  ∠H = 62°

Answer:

1.25

Step-by-step explanation:

5/9 divided by 4/9 is 1.25

Answer:

red maybeeeeeeeeeeeeeee

9s is correct

hope this helps

Answer:

240

Step-by-step explanation:

Answer:

1. 9/2 is the slope.

2. 22 is the intercept on the y-axis

Step-by-step explanation:

From the question given above, the following equation was obtained:

y = 9/2x + 22

1. Determination of the meaning of 9/2

y = 9/2x + 22

Comparing the above equation with:

y = mx + c

m => is the slope

y = 9/2x + 22

y = mx + c

mx + c = 9/2x + 22

Slope (m) = 9/2

Therefore, 9/2 is the slope.

2. Determination of the meaning of 22

y = 9/2x + 22

Comparing the above equation with:

y = mx + c

c => is the intercept on y-axis

y = 9/2x + 22

y = mx + c

mx + c = 9/2x + 22

Intercept (c) = 22

Therefore, 22 is the intercept on the y-axis

Answer:

She should buy one that accords to her budget and her needs

Answer:

Step-by-step explanation:

go to this website Cymath.com

Answer:

5/7

Step-by-step explanation:

5/7

It is always good to double-check your math to make sure you did it right. When I entered 4/7 for x in this equation x / (4/5) = (5/7), we get the following true equation which means the math is correct.

(4/7) / (4/5) = (5/7)

Answer:

9.42477796 ≈ 9.4

Step-by-step explanation:

Ao= π*r

    = π*(6/2)

    =π*3= 9.42477796 ≈ 9.4

Answer:

8 because 56/7 = 8

Step-by-step explanation:

Answer:

86 - 9 = 77

Step-by-step explanation:

Answer: C

Step-by-step explanation:

Hello! :)

[tex]\large\boxed{\text{m = -8, b = 22}}[/tex]

Find the slope and y-intercept by rearranging the equation into the following format:

y = mx + b

We are given the equation:

16x + 2y = 44

Rearrange by subtracting 16x from both sides:

2y = -16x + 44

Divide all terms by 2:

y = -8x + 22

In this equation, the m-value is -8 and the b value is 22.

Therefore, m = -8, and b = 22.

Answer:

Step-by-step explanation:

x1 / y1    times x2 / y2       where are two fractions

x1/y1 times x2/y2   = x1 times x2 / y1 times y2   = z1 / z2    z is a new fraction

fractions multiply like regular wholes number, which can also be represented in fractional form

Examples:

2/1   times 3/1 = 2x3 /1x1   6/1

10/2 x 18/3 = 180/6     now look at 10/2 = 5     18/3 = 6    5x6 =  30    

  5  x    6    = 30

Now apply to your fractions:

3/7 x 4/5   =   3x4 / 7x5    

12/35  

Answer:

Step-by-step explanation:

The height of given hexagonal prism is 7x³+4x²-3x+5.

Given that, the volume of a hexagonal prism is [tex]35x ^ 5 + 20x ^ 4 - 57x ^ 3 + x ^ 2 + 18x - 30[/tex] and the area of the base is 5x² - 6.

A hexagonal prism is a three-dimensional solid shape with 8 faces that including hexagon bases.

Volume of a hexagonal prism = Area of a base × Height.

Here, [tex]35x ^ 5 + 20x ^ 4 - 57x ^ 3 + x ^ 2 + 18x - 30[/tex] = 5x² - 6 × Height

Height = [tex]35x ^ 5 + 20x ^ 4 - 57x ^ 3 + x ^ 2 + 18x - 30[/tex] ÷ 5x² - 6

5x² - 6| [tex]35x ^ 5 + 20x ^ 4 - 57x ^ 3 + x ^ 2 + 18x - 30[/tex] | 7x³+4x²-3x+5

            [tex]35x^5[/tex]           (+) 42x³

          ____________________

                       [tex]20x^4[/tex] - 15x³+x²+18x-30

                    (-)[tex]20x^4[/tex]   (+)24x²

           ____________________

                          - 15x³+25x²+18x-30

                        (+)15x³         (-)18x

                      ____________________

                                     25x²-30

                                  (-)25x²(+)30

                           ___________________

                                           0

So, height = 7x³+4x²-3x+5

Therefore, the height of given hexagonal prism is 7x³+4x²-3x+5.

To learn more about the volume of a hexagonal prism visit:

https://brainly.com/question/10414589.

#SPJ2

Answer: 3

Step-by-step explanation: Because there are 4 fourths in one whole and 3*4=12

Answer:

3

Step-by-step explanation:

Because 12 divide by 4 is three

Answer:

X  = -12

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

~Hoped this helped~

~Brainilest, pelase?~

Answer:

the answer is the x-intercepts are about(0,-6) and (0,2) hope this helps

Step-by-step explanation:

Answer: 8

Step-by-step explanation:

Answer:

Amanda will catch up Ben after 0.6 hours.

Step-by-step explanation:

Amanda begins jogging along the same path at 7 mi/h.

This means that Amanda's position, after t hours, is given by:

[tex]A(t) = 7t[/tex]

Ben starts walking along a path at 2 mi/h.

Amanda leaves after one and a half hour, which means that Ben will be at position 2*1.5 = 3. So Ben's position after t hours is given by:

[tex]B(t) = 3 + 2t[/tex]

How long (in hours) will it be before Amanda catches up to Ben?

This will happen when:

[tex]A(t) = B(t)[/tex]

So

[tex]7t = 3 + 2t[/tex]

[tex]5t = 3[/tex]

[tex]t = \frac{3}{5}[/tex]

[tex]t = 0.6[/tex]

Amanda will catch up Ben after 0.6 hours.

It would take Amanda 0.6 hours or 6/10 hours to catch up with Ben.

This question comes from a topic in mathematics called rates and it's used to compare two values with each other and how one value affects the other value.

Let s represent the distance Amanda travels until she meet Ben.

We can set a timer on our phone when she leaves in order to track the time taken.

Let t represent the time taken.

We can come up with two equations from these scenario

Substitute equation (ii) into equation (i)

[tex]7t -3 =2t[/tex]

collect like terms

[tex]7t-2t=3\\5t=3\\t=3/5\\t=0.6[/tex]

From the above, we can see it took her 0.6 hours to catch up with Ben.

Learn more about rates here;

https://brainly.com/question/14323743

Answer:

Population mean = 7 ± 2.306 × [tex]\frac{2.29}{\sqrt{9} }[/tex]

Step-by-step explanation:

Given - A university researcher wants to estimate the mean number

            of  novels that seniors read during their time in college. An exit

            survey was conducted with a random sample of 9 seniors. The

            sample mean was 7 novels with standard deviation 2.29 novels.

To find - Assuming that all conditions for conducting inference have

              been met, which of the following is a 94.645% confidence

              interval for the population mean number of novels read by

              all seniors?

Proof -

Given that,

Mean ,x⁻ = 7

Standard deviation, s = 2.29

Size, n = 9

Now,

Degrees of freedom = df

                                = n - 1

                                = 9 - 1

                                = 8

⇒Degrees of freedom = 8

Now,

At 94.645% confidence level

α = 1 - 94.645%

   =1 - 0.94645

  =0.05355 ≈ 0.05

⇒α = 0.5

Now,

[tex]\frac{\alpha}{2} = \frac{0.05}{2}[/tex]

  = 0.025

Then,

[tex]t_{\frac{\alpha}{2}, df }[/tex]  = 2.306

∴ we get

Population mean = x⁻ ± [tex]t_{\frac{\alpha}{2}, df }[/tex] ×[tex]\frac{s}{\sqrt{n} }[/tex]

                           = 7 ± 2.306 × [tex]\frac{2.29}{\sqrt{9} }[/tex]

⇒Population mean = 7 ± 2.306 × [tex]\frac{2.29}{\sqrt{9} }[/tex]

Answer:

E

Step-by-step explanation:

on ap classroom

Answer:

10 square units.

Step-by-step explanation:

Remark

No matter how weird it looks, the figure is a trapezoid. It has 2 parallel lines.

The height has 2 right angles, one at each end.

Givens

b1 = 2

b2 = 8

h = 2

Formula

Area = 1/2 * (b1 + b2 ) * h

Solution

Area = 1/2 * (2 + 4 + 2 + 2) * 2    Be sure you understand where all those 2s came from.

Area = 10 square units

Answer:

3 + 3x + 15y

Step-by-step explanation:

You may find it easier to write these two expressions into column form:

  (-4+5y-2x)

+ (5x+7+10y)

Combine like terms (do this for constants, x and y terms):

  (-4+5y-2x)

+ (5x+7+10y)

-------------------

 3 + 3x + 15y