I need help pleaseeeee

I Need Help Pleaseeeee

Answers

Answer 1

[tex] \qquad\qquad\huge\underline{{\sf Answer}}{} [/tex]

Surface area of a cube is :

[tex]\qquad \tt \dashrightarrow \:6 {a}^{2} [/tex]

where, a represents side length of each edge.

[tex]\qquad \tt \dashrightarrow \:a = 6(6.4) {}^{2} [/tex]

[tex]\qquad \tt \dashrightarrow \:a = 6(40.96)[/tex]

[tex]\qquad \tt \dashrightarrow \:a = 245.76 \: \: unit {}^{2} [/tex]

it can be taken as an approximate of :

[tex]\qquad \tt \dashrightarrow \:a \approx245.8 \: \: unit {}^{2} [/tex]

Answer 2

Answer:

The answer is D. 245.8 unit^2


Related Questions

Mr. Hollins determines that he gives away $800 each month. If he gives away 16% of his budget, then how much is his overall budget

Answers

Answer:

5000 dollars

Step-by-step explanation:

Let his budget be x

16% of x is 800 dollars

.16 * x = 800

Divide each side by .16

.16x/.16 = 800/.16

x=5000

His budget is 5000 dollars

Can someone answer these 2 questions, thanks!

Answers

Answer:

1, answer ..

b, 50% because add this

40+10=50

Step-by-step explanation:

and 2nd one i dont know but i studied it i did not remember

10. Find the surface area of the figure to the left.

13 m

9 m

Answers

Answer:

soz i need points n

Step-by-step explanation:

cuz

The net below shows a square pyramid. What is the lateral surface area?
A. 176 in^2
B. 112 in^2
C. 64 in^2
D. 210 in^2

Answers

Answer: B

Step-by-step explanation:

1/2 8 *7 = 28

because there is 4 triangles you do this 28+28+28+28

28+28+28+28 = 112

The lateral surface area of the pyramid is 112 sq. in.

The correct answer is an option (B)

From the attached figure of the net of a square pyramid, we can observe that the side length of the square base is 8 in and height of the lateral triangular face is 7 in.

Hence, The lateral surface area of the pyramid is equal to the area of the four triangular faces of the pyramid.

Using the formula of the area of triangle, the lateral surface area would be,

A = 4 × (1/2 × base × height)

A = 4 × (1/2 × 8 × 7)

A = 4 × (4 × 7)

A = 4 × 28

A = 112 sq. in.

Thus, This is the required lateral surface area.

So, The correct answer is an option (B) 112 in²

Learn more about the surface area here:

brainly.com/question/18727714

#SPJ2

Which statement best describe the product of 4/5x10

Answers

Answer:

4/5x10=8

Step-by-step explanation:

Not sure what the statements the question describes are since you didn't put them but the product is 8.

Find the radius of the circle given by this equation:

Answers

Answer:

8

Step-by-step explanation:

We know that

Equation

[tex] {x}^{2} + {y}^{2} + 2gx + 2fy + c = 0[/tex]

Represents the equation of Circle

where

[tex]radius = \sqrt{ {g}^{2} + {f}^{2} - c } [/tex]

On comparing the given equation with general Equation of Circle

we get

[tex]g = - 5[/tex]

[tex]f = 3[/tex]

[tex]c = - 30[/tex]

On substituting these values We get

[tex]radius = \sqrt{ { (- 5)}^{2} + {3}^{2} - ( - 30) } [/tex]

[tex]radius = \sqrt{25 + 9 + 30 } = \sqrt{64 } = 8[/tex]

[tex]radius = 8[/tex]

Work out x 3
Give your answer in its simplest form.
1
1
4
4
4

Answers

Answer:

3/4

Step-by-step explanation:

Hey there!

When multiplying fractions, there is no need to make the denominators the same like how you do when adding fractions

So we can just straight multiply the numerators and the denominators together

[tex]\frac{1}{4}*\frac{3}{1}[/tex]

I made 3 to 3/1 so the multiplying process is easier

3 x 1 is 3 and 4 x 1 is 4

The numerator is 3

The denominator is 4

3/4

So 1/4 x 3 is 3/4

rewrite the equation in standard form

Y= -3/4x + 7

rewrite the equation in slope intercept form

X+2y=-3

Answers

Answer:

Y= -3/4x + 7 in standard form is 3x + 4y = 28

x + 2y =-3 in slope intercept form is y= 1/2x - 3/2

Step-by-step explanation:

Hope this helps!!

Answer:

please see photo above for detailed analysis.

A car travels at 30 1/5 miles in 2/3 of an hour. What is the average speed, in miles per hour

Answers

Answer:

45.3 miles/h

Step-by-step explanation:

The answer is 45.3 miles/h

ANSWER:

45 3/10 mph

decimal form: 45.3 mph

Step-by-step explanation:

30 1/5 /2 = 15 1/10

15 1/10 x 3 = 45 3/10 mph

So hence, your answer is 45 3/10 mph. In decimal format, it can be 45.3

what is the volume of the cone below

Answers

Volume of a Cone = [(pi)r^2(h)]:3 = [pi (16) (27)]:3 = 144pi units^3. [C.]

Answer:

Its C because the formula to find the volume of the cone is π x radius² x height / 3 and in this case the radius is 4 and the height is 27 so π x 27 x 4² which is 452.16 and 144 x π is 452.16

Step-by-step explanation:

Please mark as brainliest

is it true or false?

Answers

Answer:

True

Step-by-step explanation:

plug in numbers

4(-3)+15=3

-12+15=3

-3+15=12

PLS answer and explain
Write the expression for the cubic function

Answers

Answer:

F(x) = ax3 + bx2 + cx1 + d.

Step-by-step explanation:

A, b, and c are the coefficients and d is the constant.

the time failures for an electronic component are exponentially distributed with a mean of 50 hours between consecutive failures. what is the probability that a randomly selected part will fail in less than 20 hours

Answers

Using the exponential distribution, it is found that there is a 0.3297 = 32.97% probability that a randomly selected part will fail in less than 20 hours.

Exponential distribution

The exponential probability distribution, with mean m, is described by the following equation:

[tex]f(x) = \mu e^{-\mu x}[/tex]

In which [tex]\mu = \frac{1}{m}[/tex] is the decay parameter.

The probability that x is lower or equal to a is given by:

[tex]P(X \leq x) = \int\limits^a_0 {f(x)} \, dx[/tex]

Which has the following solution:

[tex]P(X \leq x) = 1 - e^{-\mu x}[/tex]

In this problem, the mean and the decay parameter are, respectively, given by:

[tex]m = 50, \mu = \frac{1}{50} = 0.02[/tex].

The probability that a randomly selected part will fail in less than 20 hours is given by:

[tex]P(X \leq 20) = 1 - e^{-0.02 \times 20} = 0.3297[/tex]

0.3297 = 32.97% probability that a randomly selected part will fail in less than 20 hours.

More can be learned about the exponential distribution at https://brainly.com/question/18596455

Find the missing value.
(√24-√k)(√24+√k)=5

Answers

Answer:

k = 19

Step-by-step explanation:

Identity

(a + b)(a - b) = a² - b²

Simplifying the LHS (Left Hand Side)

(√24-√k)(√24+√k)(√24)² - (√k)²24 - k

Equating to the RHS

24 - k = 5k = 24 - 5k = 19

Answer:

19

Step-by-step explanation:

[tex](\sqrt{24} -\sqrt{k} )(\sqrt{24} +\sqrt{k} )\\\\As,\\\\\hookrightarrow a^{2} -b^{2} =(a+b)(a-b)\\\\Subtitute:\\\\a=\sqrt{24} \\\\b=\sqrt{k} \\\\Now,\\\\\hookrightarrow (\sqrt{24} -\sqrt{k} )(\sqrt{24} +\sqrt{k} )=5\\\\\hookrightarrow (\sqrt{24} )^{2} -(\sqrt{k} )^{2} =5\\\\\hookrightarrow 24-k=5\\\\\hookrightarrow 24-5=k\\\\\hookrightarrow 19[/tex]

a department store has guft boxes that are 20 inches long, 12 1/2 inches wide, and 5 1/2 inches high what is the volume

Answers

In order to find the volume you need to do Length x Width x Height.

So the
L= 20. You can turn 20 to 20/1 and
W=12 1/2. multiply it by the W and the
H= 5 1/5

Or you can do 20 x 12.5 x 5.5.

The answer is 1,375.

Use a table to multiply (-3a2)(a - b).

Answers

Answer:

-3a³ + 3ba²

Step-by-step explanation:

1) Distribute

-3a² (a-b)

-3a³ + 3ba²

HELP ME WITH THESE TWO QUESTIONS PLEASE.

Answers

Answer:

the answer for the first one is 141

and the answer for the second is 48

Answer:

First: -1628

Second: -16

Step-by-step explanation:

For the first problem, start by rewriting the equation by plugging in h and g as (4n-3)(-4n-4)

By FOILing this, you’ll end up with -16n^2-16n+12n+12
-16n^2-4n+12

Now you can plug in n, which is -10:

-16(10)^2-4(10)+12

-1600-40+12

-1628

For the second question, you’ll be plugging f(-2) into g, but I’ll leave -2 as n for simplicity until the end

g(n)=n^2+2n

f(n)=2n-4

g(n)=(f(n))^2+2(f(n))

(2n-4)^2+2(2n-4)

(4n^2-16n+16) + (4n-8)

4(-2)^2-16(-2)+16+4(-2)-8

16-32+16-8-8

-16

A bicycle manufacturer wants to find out which features most cyclists prefer to have in the newest model of bicycles to be manufactured next year. What is the population from which the manufacturer should choose a sample?
A. Subscribers to a national bicycling magazine. B. Cyclists who purchased bicycles from this manufacturer before. C. Visitors to the manufacturer’s Web site. D. Members of a bicycling club.

Answers

Answer:

It's B

Step-by-step explanation:

I did the test

The measure of anglerst can be represented by the expression (6x 12)°. three lines extend from point s. the space between lines s r and s u is 78 degrees. the space between lines s u and s t is 3 x minus 12. what is manglerst in degrees? 78° 84° 120° 156°

Answers

Answer:

  ∠RST = 120°

Step-by-step explanation:

We assume the positions of the lines and angles will match the attached figure. The angle addition theorem gives a relation that can be solved for x, then for the value of angle RST.

  ∠RSU +∠UST = ∠RST

__

  78° + (3x -12)° = (6x +12)° . . . . . substitute given values into the above

  54 = 3x . . . . . . . . . . . . . . . . divide by °, subtract 3x+12

  108 = 6x . . . . . . . . . . . multiply by 2

  120° = (6x +12)° = ∠RST . . . . add 12, show units

The measure of angle RST is 120 degrees.

_____

Additional comment

Note that we don't actually need to know the value of x (18) in this problem. We only need to know the value of 6x.

Step 1: –10 8x < 6x – 4 step 2: –10 < –2x – 4 step 3: –6 < –2x step 4: ________ what is the final step in solving the inequality –2(5 – 4x) < 6x – 4? x < –3 x > –3 x < 3 x > 3

Answers

The final step of the inequality equation –10 + 8x < 6x – 4 is x > 3. Then the correct option is D.

What is inequality?

Inequality is simply a type of equation that does not have an equal sign in it. Inequality is defined as a statement about the relative size as well as is used to compare two statements.

The inequality equation is given below.

–10 + 8x < 6x – 4

This can be simplified as

–10 + 8x < 6x – 4

       –10 < –2x – 4

        –6 < –2x

        –3 < –x

          x > 3

More about the inequality link is given below.

https://brainly.com/question/19491153

Vhich statements are true about the graph of the function f(x) = x7
- 8x + 5? Select three options.
J The function in vertex form is F(x) = (x - 4)2 - 11
- 11
The vertex of the function is (-8, 5).
O The axis of symmetry is X = 5.
O The y-intercept of the function is (0, 5).
O The function crosses the x-axis twice.

Answers

Answer:

A D E

Step-by-step explanation:

https://brainly.com/question/18143812

Rewrite the following linear equation in slope-intercept form. Write your answer with no spaces.

V-5= 3(x+1)

Answers

Answer:

V=3x+6

Step-by-step explanation:

slope intercept form: y=mx+b

V-5=3(x+1)

[open parentheses]

V-5=3x+1

[combine like terms; add 5 to both sides]

V=3x+6

why is it v tho

What is the value of K?

Answers

Answer: The value of k for which one root of the quadratic equation kx2 - 14x + 8 = 0 is six times the other is k = 3.
Let's look into the solution step by step.

Explanation:

Given: A quadratic equation, kx2 - 14x + 8 = 0

Let the two zeros of the equation be α and β.

According to the given question, if one of the roots is α the other root will be 6α.

Thus, β = 6α

Hence, the two zeros are α and 6α.

We know that for a given quadratic equation ax2 + bx + c = 0

The sum of the zeros is expressed as,

α + β = - b / a

The product of the zeros is expressed as,

αβ = c / a

For the given quadratic equation kx2 - 14x + 8 = 0,

a = k, b = -14, c = 8

The sum of the zeros is:

α + 6α = 14 / k [Since the two zeros are α and 6α]

⇒ 7α = 14 / k

⇒ α = 2 / k --------------- (1)

The product of the zeros is:

⇒ α × 6α = 8 / k [Since the two zeros are α and 6α]

⇒ 6α 2 = 8 / k

⇒ 6 (2 / k)2 = 8 / k [From (1)]

⇒ 6 × (4 / k) = 8

⇒ k = 24 / 8

⇒ k = 3

100 POINTS


Solve the following inequality, if it is known that function f is increasing on its domain. f(4x-3)[tex]\geq[/tex]f(2-[tex]x^{2}[/tex]), D_f = (-8, 4)

Answers

This solution is arrived at using the principles of Quadratic Functions and Inequalities. It is to be noted that the function increases at (-8, 4).

What are Quadratic Functions?

A quadratic function can be defined as that is written in the following way: f(x) = ax2 + bx + c: Where a, b, and c are numbers not equal to zero.

How do we solve the problem above?

To solve the problem f(4x - 3) ≥ f(2 - x^2), Df = (-8 , 4), we:

RewriteCollect like termsExpandFactorize, thenSolve for x.

A) 4x - 3 ≥ 2 - x²

Rewrite as:  x² + 4x - 2 - 3 ≥ 0

B) Collect the like terms

x² + 4x - 5 ≥ 0

C) Expand to have  x² + 5x - x - 5 ≥ 0

D) Factorizing the expression we have

x(x + 5) - 1(x + 5) ≥ 0, from this we  Factor away x + 5

(x - 1)(x + 5) ≥ 0

E) Solving  for x we obtain: x ≥ 1 or x ≥ -5

This can also be rewritten to read:

-5 ≤ x ≤ 1

Learn more about quadratics and inequalities at:

https://brainly.com/question/2237134

The difference of two numbers is 3. Their sum is 13. Find the numbers.

Answers

Answer:

10 and 3

Ten and three have a difference of three, and their sum is thirteen, with that being said, this should be correct.

The ratio of men to women working for a company is 5 to 4. If there are 234 employees total, how many women work for the company?

Answers

Answer:

104

Step-by-step explanation:

5 to 4 equals 9

divide 234 by 9 and you get 26

26 times 5 is 130

and 26 times 4 is 104

so 130 to 104 adding up gives you 234

and the number of women employees would be 104

10. Enter the value of p so that the expression 8(n + 2) is equivalent to (n + p)8​

Answers

Answer:

p=2

Step-by-step explanation:

8n + 16 = 8n + 8p

subtract 8n

16=8p

divide both sides by 8

p = 2

To find the value of p that sets the expression equal to each other:

  ⇒ must set both equations equal to each other, like such:

            [tex]8(n+2)=(n+p)8\\8n+16=8n+8p\\8n+16-8n=8p\\16=8p\\8p=16\\p=2[/tex]

Thus the value of p so that the expression 8(n + 2) is equivalent to (n + p)8​ is 2

Answer: 2

Hope that helps!

em sa
1.
She bikes at a constant speed of 13 miles per hour for
the entire 20 minutes.
Hint 20 minutes is what fraction of an hour? Look back
at the answer to problem 4.

Answers

Answer:

4.33 miles

Step-by-step explanation:

20 minutes=1/3 of an hour

because 1 hour=60minutes

so 20/60 = 1/3

for your answer

13× 1/3=4.33

therefore she was able to bike 4.33 miles in 20 minutes at a constant speed

25 points!

7 and 8 Find the measurement of the missing interior angle

Answers

Answer:

7. x = 88

8. x = 59

Step-by-step explanation:

You're probably trying to equal 180° because that's what the triangle should equal so

7. 48° + (88° - 44°) + 88° = 180°

8. 73° + (59° - 11°) + 59° = 180°

I hope this is right :,)

For #7:
X=8

For #8:
X=59

jayce runs 2 1/2 miles on monday. Each day after that, he runs the same 1 1/3 mile route every morning. His goal is to run at least 6 miles by the end of the week. Which inequality represents the least number of days after monday that jayce needs to run to reach his goal?

Answers

Answer:

Step-by-step explanation:

6 < 2 1/2 + 1 1/3R

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