Mathematics High School

does anyone know the surface area of this pyramid?

Answers

Answer 1

Answer:

217

Step-by-step explanation:

1/2 * 12 * 7 = 42 this is one side of the pyramid

4x for all sides = 168

add the bottom which is just a square 7*7 = 49

168 + 49 = 217

Related Questions

What is an equation of the line that passes through the points (-1, 6) and
(-1, -5)?

Answers

Answer:

x = -1

Step-by-step explanation:

(-1 , 6) ; (-1 , -5)

There is no change in x-coordinate values.

So, the is parallel to y-axis

x = -1

I need the answer to this

Answers

Answer:

Step-by-step explanation:

12/4 + 2 * 1/2 - 3 = 1

Uhm I also need help with this

Answers

Answer:

D. Perpendicular

Step-by-step explanation:

First answer A. Answer A is not even correct. Parallel are two or more lines that NEVER cross

Answer B is also not correct. Line segments are a line of specific length. These are two LINES. You can tell by the arrows on the edge of each line.

Both C and D can be correct. But the answer would be D. Here is why

Intersecting lines are two or more lines that cross. Yes these lines are crossing by perpendicular lines also cross. The difference is, intersecting lines can cross at any angle. Perpendicular lines have to cross at 90 degrees making 4 right corners.

Find the volume of the figure. Round to the nearest tenth if necessary.
1 point
3.4 in
4.8 in
25

Answers

Answer: 34 in^3

Step-by-step explanation:

Surface area of triangle = 1/2 x 3.4 x 2.5 = 4.25

To find the volume of the prism, multiply the surface area of the triangle by length.

So 4.25 x 8 = 34 in^3

Select all the statements that describe the expression 5 + 2x. *

The expression represents 5 plus 2 plus x.
The expression represents 5 plus 2 times x
The expression represents 5 plus x plus x.
The expression represents 5 plus x times x.
The expression represents the sum of 5 and 2x
The expression represents the product of 5 and 2x.

Answers

B the new one update is not a good app but it needs a new phone version for a new

Quadrilateral PQRS was translated 5 units to the right and 3 units up to create quadrilateral P′Q′R′S′. Which rule describes this transformation? F.(x, y) → (x — 5, y — 3) G.(x, y) → (x + 5, y + 3) H.(x, y) → (x — 3, y — 5) J.(x, y) → (x + 3, y + 5)

Answers

Answer:

G.(x, y) → (x+5, y+3)

Step-by-step explanation:

The rule would be (x+5, y+3) and the only one with that rule is G.

What are the measurements of each angle?

Answers

Answer:

2. 70

3. 70

4. 110

5. 110

6.70

7. 70

8. 110

Step-by-step explanation:

a straight line = 180 so 1+2 has to = 180 1+3 has to = 180 2+4 has to = 180 and so on

Solve for a. -4a - 2a – 7 = 11 a = [?]

Answers

Answer:

a = -7/17

Step-by-step explanation:

Add -4a to -2a

This makes -6a. Then you add 6a to the left to cancel it out, but you must also add 6a to the right of the =

Then you have -7 = 17a

Divide 17 from both sides and you have -7/17 = a

A triangle has three angles that measure 30 degrees, 70 degrees What is the value of x?

Answers

Answer:

x = 80

Step-by-step explanation:

Sum of all the angles of triangle = 180

30 + 70 + x = 180

100 + x = 180 {Subtract 100 from both sides}

x = 180 - 100

x = 80°

What’s the length of a segment whose endpoints are (8,-6) and (-4,2)?

Answers

Answer:

Step-by-step explanation:

Imagine or draw a triangle with horizontal leg length 8 - (-4), or 12, and vertical leg length |-6 - 2|, or 8. Use the Pythagorean Theorem to find the length of the hypotenuse:

length of hypotenuse = +√(8² + 12²) = √208 = 4√13 (Answer A)

HELP HELP HELP A triangle has two sides of length 14 and 18. What is the largest possible whole-number length for the third side?

Answers

The way you can do this is Pythagorean theorem. Since the hypotenuse has to be the highest part. So you would do 14^2 + 18^ = c^2 and then do that and you get 196 + 324 which is equal to 520 so then get the square root of that which is 22.8, but it says largest possible whole number length so you would put 22.

Answer:

Step-by-step explanation:

I added the numbers yw

Please someone help me! If sinα*cosα=-0.5 then what's the value of sin^4α+cos^4α and sin^6α+cos^6α?

Answers

HEY MATE check the attachment :)

Show and explain how you would solve the following equation by graphing x - 2 = 5

Answers

Answer:

See below

Step-by-step explanation:

If you graphed x-2=5, you would see a vertical line crossing the point x=7, as shown in the graph because 7-2=5.

Lucy loves to wear gloves. She has four red gloves and two blue gloves in her drawer. They are not separated into pairs. One dark morning, she pulls out two gloves to wear to school. She puts on the gloves.

A. Blue Gloves
B. Red gloves
C. Matching gloves

Which one

Answers

Matching gloves........

To rent some equipment from a local hardware store, it costs $65 for 8 hours. To rent it for 12 hours, it costs $85. If the rate of change is constant, find the rate of change (cost per hour).

Answers

Answer:

it costs 7-8$ per hour

Step-by-step explanation:

the answer is estimated

If the mass of a 25 meter long wire is 5 kg then find its mass per
meter.

Answers

Answer:

0.2 kg per meter

Step-by-step explanation:

5÷25=0.2

GHJU is a rhombus. how could you prove that <3~=<2? this doesn’t have to be a formal proof, just a basic outline of an augment. how would you approach this proof?

Answers

Answer:

Angle 3 is equal to Angle 2 because when you have a rhombus, the diagonals will always bisect the angles.

Step-by-step explanation:

What is the measure of angle z in this picture?

Answers

Answer:

z = 137 degrees

Step-by-step explanation:

Angle 43 and angle z make a straight line, which is 180 degrees

43+z = 180

Subtract 43 from each side

43+z-43 = 180-43

z =137

HELP ME PLEASE plsssssss

Answers

Answer:

220i

Step-by-step explanation:

v=length×width×height

Mr. drew rides his motorcycle with a constant speed of 72 mi/hr. How far can he travel in 2 ½ hours?

Answers

Answer:

180

Step-by-step explanation:

take 72+72 +36 to get your answer .

Answer:

180 miles

Step-by-step explanation:

Assuming that the speed of the motorcycle is constant, the following equation, ([tex]speed * time = distance[/tex]) can be used to find the distance that a vehicle traveled when one is given the time and speed at which the vehicle operates. Substitute in these values, and solve,

[tex](72)*(2\frac{1}{2})\\\\= 72 * \frac{5}{2}\\\\= 180[/tex]

Daniel solves the equation 3(x+1)-5=3x-2 and states that it has no solution. Is he correct?
Explain why and why not.

Answers

Answer:

He is incorrect

Step-by-step explanation:

Given

3(x + 1) - 5 = 3x - 2 ← simplify left side

3x + 3 - 5 = 3x - 2

3x - 2 = 3x - 2

Since both sides are equal, then this indicates that the equation has infinite solutions.

Solve using the quadratic equation.
[tex]3x^{2} -6x-24[/tex]
Solution 1: ___
Solution 2: ___

Answers

Answer:

X = 4

X = -2

Step-by-step explanation:

Rate And Like. Salute.

help plz i will give all my point's

Answers

Answer:

B the answer is B I believe so

A guide on how to set up an equation:
Total cookies sold were: 69
Gabby sold: 35
We don’t know how many Ross sold so his cookies are: B (until calculated)

Equation:
35+B=69
Option C is the answer.
We want to calculate the total amount of cookies and in order to do so, we must add 35 and B to calculate 69.

I can give you a more in depth explanation if you want just leave a comment! (Also no need to give any points). I also tutor, so if you need any math help I can leave my email in the comments.

4(x + 7)^2 – 49 = -13 solve the following quadratic equation for all values of x in the simplest form

Answers

Answer:

4(x²+14x+49)-49+13=0

4x²+56x+196-49+13=0

4x²+56x+160=0

D=3136-2560=576

x1=-56+24/8=-4

x2=-56-24/16=-10

Kamal makes $12.00 an hour at his job. Last week he earned $390. Write and solve an equation to determine how many hours Kamal worked last week. Enter the correct answers in the boxes.

Answers

about 32 hours last week

Im sped Help MEEEEE PLEASEEE

Answers

Answer:

2x^4

-x^3 + 3x^2 + 2x + 4

5x^2 + 5x + 5

-3x + 10

Step-by-step explanation:

find the highest exponent of each polynomials:

22=> 0 degree

-3x(equals to -3x^1) + 10=> 1st degree

5x^2 + 5x + 5=> 2nd degree

-x^3 + 3x^2 + 2x + 4=> 3rd degree

2x^4=> 4th degree

Miranda sold movie DVD’s for $12 and television DVD’s for $9 and has collected $1167 from the sales of both. The number of movies sold is 4 less than 3 times the number of television shows. How many movie DVD’s were sold, and how many television DVD’s were sold?

Answers

Answer:

number of be television be 27 and the number of movies would be 50

Step-by-step explanation:

The computation of the number of DVD sold and the number of television sold is shown below:

Let us assume the number of television be x

So, the number of movies would be (3x - 4)

Now according to the question the following equation is made

12(3x - 4) + 9x = $1167

36x - 48 + 9x = $1,167

45x = $1,215

x = 27

So, the number of be television be 27

And, the number of movies would be

= (3x - 4)

= 3(27) - 4

= 50

6 of the 10 participants in a triathlon are men and the rest are women. What is the ratio of the number of women participating to the number of men participating?

Answers

4 to 6 is the ratio of women to men.

10 participants in all, and 6 are men. That leaves 4 who are women.

A square has a side length of 1.2 meters. What is its area in squae meters?

Answers

Answer:

1.44

Step-by-step explanation:

1.2*1.2=1.44

Chris types at an average speed of 50 words per minute. He has already typed 1,250 words of his final paper. The paper has to be
more than 3,750 words. Which of the following inequalities could be used to solve for x, the number of minutes it will take Chris to
type his paper?
OA. 50x > 3,750
ОВ.50x - 1,250 > 3,750
OC. 50x > 5,000
OD. 50x + 1,250 > 3,750

Answers

Answer:

D. 50x+1,250>3,750

Step-by-step explanation:

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