ASAP!! can someone help answer these and include work, whoever answers most gets brainliest!! i underlined the questions

Answer:

461.02

Step-by-step explanation:

2 × ( (12.3 × 4.3) + (12.3 × 10.7) + (4.3 × 10.7)) = 461.02 m^2

Answer:

461.02 M^2

Step-by-step explanation:

A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

SA = 2lw+2lh+2hw

2LW = 105.78 M^2        (  52.89* 2 )

L= 12.3 M^2 , W = 4.3 M^2

LW = 52.89 M^2

2LH =  263.22       ( 131.61 * 2 )

L = 12.3 M^2 , H = 10.7 M^2

LH = 131.61 M^2

2HW = 92.02       ( 46.01 * 2 )

H = 10.7 M^2 , W = 4.3 M^2

HW = 46.01 M^2

SA = 2lw+2lh+2hw

SA = 105.78 M^2+ 263.22 M^2  + 92.02 M^2

SA = 461.02 M^2

Answer:

x=2.25

Step-by-step explanation:

ΔABC and ΔADE are similar.

∴ sides are proportional.

[tex]\frac{5}{1} =\frac{x+9}{x} \\5=\frac{x}{x} +\frac{9}{x} \\5=1+\frac{9}{x}\\\frac{9}{x}=5-1\\\frac{9}{x}=4\\x=\frac{9}{4}=2.25[/tex]

Answer:

x = 9/4

Step-by-step explanation:

We know that the triangles are similar

We can use ratios to solve

x          x+9

----- = ----------------

1            5

Using cross products

5x = 1(x+9)

5x = x+9

Subtract x

5x-x = x+9-x

4x= 9

Divide by 4

4x/4 = 9/4

x = 9/4

Answer:

length: 5 yd

width: 4 yd

area: 20 yd^2

Step-by-step explanation:

1 yd = 3 ft

15 ft * (1 yd)/(3 ft) = 5 yd

12 ft * (1 yd)/(3 ft) = 4 yd

A = LW

A = 5 yd * 4 yd = 20 yd^2

Answer:

20 yd²

Step-by-step explanation:

1 yd = 3 ft =>

=>w = 12ft×yd/3ft = 4 yd

=> l = 15ft×yd/3ft = 5 yd

A = l × w

= 5yd × 4yd

= 20 yd²

Answer:

You can determine this by putting the rational numbers in decimal form.

Step-by-step explanation:

A rational number like 1/2 will have a terminating decimal answer = 0.5

A rational number like 7/11 will have a terminating decimal answer = 0.636 where 36 is repeating.

Answer:

c

Step-by-step explanation:

Answer:

Amplitude = 3

Step-by-step explanation:

Given

The sine curve above

Required

Determine the amplitude

To determine the amplitude of a sine curve, we have to calculate the distance between the horizontal line of the curve and the top or bottom of the function

Using the top of the curve as a point of reference;

Amplitude = Top of curve - Horizontal Line.

The horizontal line is always at point 0

From the graph above, the top of the curve is at point 3

Hence,

Amplitude = 3 - 0

Amplitude = 3

Answer:

See the answers in the pics

Step-by-step explanation:

Srry, I didn't quite understood the last two equations

but I hope that from now on you will know how to solve equations and inequalities like this ;]

Answer:

LLLLLLLLLLLLLl

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

2 2 3 5 7 7 (order from least to greatest)

3+5=8(find the most middle number,if there are two numbers you add both and then divide by 2)

8÷2

4

Hi there!! (✿◕‿◕)

⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐

First, you have to put the numbers from least to greatest.

2, 2, 3, 5, 7, 7

Then, you have to find the middle number.

2, 2, 3, 5, 7, 7

3 and 5 and both in the middle so, you add them both and divide them by 2.

3+5 = 8

8/2 = 4

4 is the median.

Hope this helped!!  ٩(◕‿◕｡)۶

Answer:

    3 > x

Step-by-step explanation:

–2(5 – 4x) < 6x – 4

Step 1: –10 + 8x < 6x – 4

Step 2: –10 < –2x – 4

Step 3: –6 < –2x

Step 4: divide each side by by -2, remembering to flip the inequality

   -6/-2 > -2/-2

    3 > x

Answer:

x < 3

Step-by-step explanation:

−2(5−4x)<6x−4

Use the distributive property to multiply −2 by 5−4x.

−10+8x<6x−4

Subtract 6x from both sides.

−10+8x−6x<−4

Combine 8x and −6x to get 2x.

−10+2x<−4

Add 10 to both sides.

2x<−4+10

Add −4 and 10 to get 6.

2x<6

Divide both sides by 2. Since 2 is >0, the inequality direction remains the same.

x= 6/2

Divide 6 by 2 to get 3.

x= 3

X< 3

Mark me as brainliest

Answer:

Opens down

Has a maximum value

Answer:

6x^2 - 14x + 4.

Step-by-step explanation:

5x^2 - 3x + 8 + 4x^2 - 7x - 3 - (3x^2 + 4x + 1)

=  5x^2 - 3x + 8 + 4x^2 - 7x - 3 - 3x^2 - 4x - 1

= 6x^2 - 14x + 4.

Answer:

10,000

Step-by-step explanation:

Standard notation is just the normal way of writing things. 10 x 10 x 10 x 10 = 10,000.

Answer:

Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication, and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.

Step-by-step explanation:

Answer:

30 degrees

Step-by-step explanation:

100+50=150

180-150=30

All triangles equal 180 degrees, so if the other angles equal 150 than the third angle equals 30 degrees.

Answer:

x = 65

Step-by-step explanation:

50 + 2x = 180

2x = 130

x = 65

Hope this helps)))

Answer:

65 degrees

Step-by-step explanation:

break apart the image into 2 sets of 2 lines and a transversal. Doing that you can see that 2x and 50 degrees are supplementary due to corresponding angles. 50 degrees+2x=180 degrees. Using ALgebra you can solve to find that x equals 65 degrees, which brings you to your answer

Answer:

9/20 (or) 45% (or) .45 (however your teacher wants it expressed)

Step-by-step explanation:

There are 20 experiments and 9 of them have three ones and two zeros.

9/20

Answer:

5/12

Step-by-step explanation:

take the number of students who read under6 books (5) and divide by total amount of students (12)

5/12

Answer:

5/12

Step-by-step explanation:

there are a total of 12 books read and a frequency of 5 books read that is fewer than 6 books

Answer:

[tex]x2 = \frac{4}{3} [/tex]

Step-by-step explanation:

[tex]18 {x}^{2} + 21x - 60 = 0[/tex]

Divide both sides of the equation by 3

[tex]6 {x}^{2} + 7x - 20 = 0[/tex]

Write 7x as a difference

[tex]6 {x}^{2} + 15x - 8x - 20 = 0[/tex]

Factor out 3x from the expression

[tex]3x(2x + 5) - 8x - 20 = 0[/tex]

Factor out -4 from the expression

[tex]3x(2x + 5) - 4(2x + 5) = 0[/tex]

Factor out 2x + 5 from the expression

[tex](2x + 5)(3x - 4) = 0[/tex]

When the product of factors equals 0 , at least one factor is 0

[tex]2x + 5 = 0[/tex]

[tex]3x - 4 = 0[/tex]

Solve the equation for X

[tex]2x + 5 = 0[/tex]

Move constant to R.H.S and change its sign

[tex]2x = 0 - 5[/tex]

Calculate the difference

[tex]2x = - 5[/tex]

Divide both sides of the equation by 2

[tex] \frac{2x}{2} = \frac{ - 5}{2} [/tex]

Calculate

[tex]x 1= - \frac{5}{2} [/tex]

Again,

[tex]3x - 4 = 0[/tex]

Move constant to RHS and change its sign

[tex]3x = 0 + 4[/tex]

Calculate the sum

[tex]3x = 4[/tex]

divide both sides of the equation by 3

[tex] \frac{3x}{3} = \frac{4}{3} [/tex]

Calculate

[tex]x 2= \frac{4}{3} [/tex]

Hope this helps..

Best regards!!

Answer:

39x+58

Step-by-step explanation:

18x 2+21x-60=0

pick the like terms together

18x+21x=39x

60-2=58

=39x+58

Answer:

√58 or 7.62

Step-by-step explanation:

x-intercept = (7, 0)

y-intercept = (0, -3)

distance = √(-3 - 0)² + (0 - 7)² = √58 or 7.62

Answer:

120

Step-by-step explanation:

expand and calculate

10x9x8x7!/(10-3)!x3!

10x9x8x7!/7!x3!

reduce

10x9x8x7!/7!x3!

10x9x8/3!

Calculate the product

10x9x8/3!

Now Cacluate the factorial

720/3!

720/6

reduce

120

Answer: 120

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Each bar represents a range in area. The first bar represents the number of houses with an area of more than 50 but less than 100. It's height is 4, so there are 4 of those houses.

Answer:

it is 540 degrees.

Step-by-step explanation:

Answer:

108°

Step-by-step explanation:

Sum of interior angle of any polygon = (n - 2 )*180

Here, n = number of sides

Sum of interior angle of regular pentagon = ( 5 - 2)*180 = 3*180 = 540°

In regular pentagon all the angles are congruent.

Interior angle of regular pentagon = 540/5

                                                         = 108°

Answer:

the third one is the correct answer

Answer:

[tex]120\º \text{ and } 240\º[/tex]

or in radians:

[tex]$\frac{2\pi }{3} \text{ and } \frac{4\pi }{3}$[/tex]

Step-by-step explanation:

From the way you wrote, you want to solve the equation

[tex]\sqrt {2 \cos(x)+1}=0[/tex] for [tex]0 \leq x < 360\º[/tex], or in radians [tex][0, 2\pi)[/tex]

[tex]\sqrt {2 \cos(x)+1}=0[/tex]

Square both sides

[tex]2 \cos(x) +1= 0[/tex]

[tex]2\cos(x)=-1[/tex]

[tex]$\cos(x)=-\frac{1}{2} $[/tex]

In the Unit Circle, considering one revolution (interval [tex][0, 2\pi)[/tex]),

the values where [tex]$\cos(x)=-\frac{1}{2} $[/tex]  are in Quadrant II and III.

Once

[tex]$\cos(x)= \frac{1}{2} \text{ for } x = 60\º \text{ in the Quadrant I}$[/tex]

The values where

[tex]$\cos(x)=-\frac{1}{2} $[/tex]   are 120º and 240º.

Answer:

C on edge

Step-by-step explanation:

Answer:

6p+19

Step-by-step explanation:

combine like terms:

8p+10+-2p+-1+10

(8p+-2p)+(10+-1+10)

6p+19

HOPE THIS HELPS!!!!!!:)

Answer:

756

Step-by-step explanation:

In the last question the volume of the tank was 168 m³

so to find the cost multiply 168 and 4.5

it will cost 756

Answer:

756

Step-by-step explanation:

168 x 4.5 = 756

Given:

Mean of 52 minutes and a standard deviation of 5 minutes.

Solution:

According to the empirical rule: For the normal distribution, all of the data will fall within three standard deviations of the mean.

1: 68% of the data will fall within the first standard deviation from the mean.

2: 95% of the data fall within two standard deviations.

3: 99.7% of the data fall within three standard deviations.

[tex]3SD =99.7\%=\mu\pm3\sigma\\[/tex]

Therefore, the 7 intervals and their probabilities are:

1. [tex]1SD=0.68=P(47<x<57)[/tex]

2. [tex]0.95=P(42<x<62)[/tex]

3. [tex]0.997=P(37<x<67)[/tex]

4.[tex]13.5\%=P(42<x<47)[/tex]

5.[tex]13.5\%=P(57<x<62)[/tex]

6. [tex]2.35\%=P(37<x<42)[/tex]

7.[tex]2.35\%=P(62<x<67)[/tex]

Answer:

Answer- 3/4 divided by 1/8 = 6/8

Answer:

asDawas

Step-by-step explanation:

sadasda

Answer: -28, -17, 22.4, 27

hope this helps

Answer:

112 m³

Step-by-step explanation:

Let's calculate first the voulume of the tank

the volume of thi tank is given by :

so the volume is :

Multiply by 2/3 to get the volume of the water

Answer:

112 m^3

Step-by-step explanation:

V = l x w x h

V = 4 x 12 x 3.5

V = 168 m^3

V = 168 x (2/3)

V = 112 m^3