Answers
9514 1404 393
Answer:
B. 75.8 ft²
Step-by-step explanation:
The height of each triangle can be found using the Pythagorean theorem. The given edge length (7 ft) is the hypotenuse of the triangle, and the base edge length is twice one leg of the triangle.
The height of the triangle on the 2 ft faces is ...
√(7² -1²) = √48 = 4√3
The height of the triangle on the 8 ft faces is ...
√(7² -4²) = √33
The areas of the triangular faces are the product of the height and half the base length:
A = 1/2bh
2 ft edge triangle area = (1/2)(2 ft)(4√3 ft) = 4√3 ft²
8 ft edge triangle area = (1/2)(8 ft)(√33 ft) = 4√33 ft²
__
The area of the rectangular base is ...
A = LW
A = (8 ft)(2 ft) = 16 ft²
__
The total surface area of the pyramid is the sum of the areas of the triangular faces and the area of the rectangular base.
2(4√3 +4√33) +16 = 8(2+√3+√33) ≈ 75.813
The total surface area is about 75.8 ft².
Related Questions
x-intercept=4 y-intercept= -2 what is the slope of this line?
Answers
Answer:
gradient = change in y/change in x
--> -2/4 = -1/2
Therefore slope = -1/2
Step-by-step explanation:
Please give BRAINLIEST, it is appreciated, hope this helps!
There are over 2,700 species of snakes in the world. Over
600 species are venomous. Write the fraction of species that are not
venomous as a decimal.
Answers
Answer:
4.5
Step-by-step explanation:
2,700 ÷ 600 = 4.5
not a 100% sure just trying to help
The angle bisectors of triangle ABC meet at point P. If PQ = 8 and PA = 17, what is the length of AR?
A. 8
B. 15
C. 17
D. Cannot be determined
Answers
Answer:
I'm not sure but I think it's B
inverse of the function f(x) = 2x + 5?
Answers
Answer:
[tex]y^{-1} =\frac{1}{2} x-\frac{5}{2}[/tex]
Step-by-step explanation:
Answer:
x - 5
y = --------------
2
Step-by-step explanation:
1. Replace "f(x)" with "y:" y = 2x + 5
2. Interchange x and y: x = 2y + 5
3. Solve this result for y:
2y = x - 5, or
x - 5
y = --------------
2
Please help i'm timed!!
In the equation 19.8 x 2.3 = n, what is the value of n?
Answers
Answer:
45.54
Step-by-step explanation:
hope this helps
Answer:
n=45.54
Step-by-step explanation:
simplifying both sides of equation
The cost of a babysitting service is $8 for the first hour and $10 for each
additional hour. If the total cost of babysitting Josue is $58, how many
hours TOTAL was Josue with the babysitter?
Answers
Answer:
6 hours
Step-by-step explanation:
8 dollar - 1st hour = 8
10 dollar times 5 hours= 50dollar
total - 58 dollars for 6hours
Answer:
she was with the babysitter for 6 hours.
Step-by-step explanation:
why is it not recommended to scuba dive in the morning and fly home the same afternoon ?
Answers
In a right triangle, measure of one of the acute angles is 10 degrees more than 3 times the measure of the other angle. What are the measures of the three
angles?
Answers
Answer:
How do you find the angle of a right triangle with 3 sides?
Step-by-step explanation:
Step 1 The two sides we know are Adjacent (6,750) and Hypotenuse (8,100).
Step 2 SOHCAHTOA tells us we must use Cosine.
Step 3 Calculate Adjacent / Hypotenuse = 6,750/8,100 = 0.8333.
Step 4 Find the angle from your calculator using cos-1 of 0.8333:
multiply the decimals 12.5 multiply 1.4
Answers
Answer:
17.5
Step-by-step explanation:
Answer:
17.5
Step-by-step explanation:
Come up with an example for a solid, liquid, and gas describing the particle movement.
Answers
Answer:
Ice Cube, Liquid Water, and Steam
Step-by-step explanation:
An example of a solid is a ice cube, the particles are compacted together and there's very little movement.
An example of a liquid is water, the particles are more spread around and the movement is more frequent.
An example of a gas is steam, the particles are anywhere, moving fast and sporadic.
one type of insect is 0.0052 meters long. what is this length in scientific notation?
Answers
5.2*10^(-3)
hope this helps!
happy thanksgiving
Answer:
Because scientific notation has to be in between 1 and 10, you would need this to be 5.2. Count the spaces and since its getting smaller your exponent is negative.
Your answer should be 5.2*10^(-3)
Step-by-step explanation:
1) h(x) = -3x + 5; Find h(-1-2)
Answers
Answer:
h(-1) = 8
h(-2) = 11
h(-12) = 41
Step-by-step explanation:
h(x) = -3x + 5
h(-1) = -3(-1) + 5 = 3 + 5 = 8
h(-2) = -3(-2) + 5 = 6 + 5 = 11
h(-12) = -3(-12) + 5 = 36 + 5 = 41
Geometry hw 2.6 big ideas math
Answers
what???
Explanation:
Why is is that....we park on drive ways but drive on drive ways
Answers
Answer:
What kind of question is this??
Step-by-step explanation:
f(x) = 2x - 4; g(x) = { f(x)
Answers
Answer:
Step-by-step explanation:
subtract the divied
Solve 0=2y−8x+10 for y
Answers
Answer:y
y=4x−5
Step-by-step explanation:
Which of the number(s) below are potential roots of the function? q(x) = 6x3 + 19x2 – 15x – 28
Answers
Answer:
±2/3, ±7/2, ±14
Step-by-step explanation:
edge:) 2020
Answer: ±2/3, ±7/2, ±14
Step-by-step explanation: edge 2020
Question is : Rearrange to make x the subject : 3y-2x=7
Answers
Answer:
=1
Step-by-step explanation:
Answer:
Work shown below!
Step-by-step explanation:
3y - 2x = 7
Subtract 3y from both sides;
-2x = -3y + 7
Divide both sides by -2
[tex]x=\frac{3}{2}y-\frac{7}{2}[/tex]
Please help I need your help please please
Answers
Answer:
The one in the bottom left
Step-by-step explanation:
HELP PLSSSS WILL MARK BRAINLIEST
Answers
‘ as a exponent it would be 486 -1 .
C personalities are organized and controlled. They take their time completing tasks accurately, like to research things thoroughly, and are always prepared. Because they put so much time and effort into everything they do, they hate to be criticized. They are perfectionists at heart and take even the smallest complaint personally. This makes them extremely difficult to confront. The best way to approach it is to focus on parts of the problem largely out of the C personality’s control or aspects of the problem they might not have considered. Make it clear that you appreciate all of their efforts and that you’re bringing something to their attention because it’s a variable that they need to have in the equation in the future. No matter what, don’t frame the conflict as a personal attack. If you do, the C personality will likely become resentful and go out of their way to avoid future interactions with you.%%%%%%%%%%%%%%%
3 (1 - x)=2 (-4x + 7)
Solve for X.
Answers
Answer:
x = 11/5
Step-by-step explanation:
3-3x = -8x +14
5x = 11
x= 11/5
3-3x = -8x + 14
Add 8x to both sides
3+ 5x = 14
Subtract 3 from both sides
5x = 11
X = 11/5
Is 379 in the sequence below?
5,7,9,11,13.......
Answers
If F, G, and H are the midpoints of the sides of triangle JKL , FG = 37, KL = 48, and GH = 30 find each measure
Answers
Answer:
The measure of JK is 60
Step-by-step explanation:
It is given that the points F, G, and H are the midpoints of the sides of triangle JKL , FG = 37, KL = 48, and GH = 30.
The point F is midpoint of JK, point G is midpoint of KL and the point H is midpoint of LJ as shown in figure .
According to the midpoint theorem, the line connecting the midpoints of two sides is parallel to the third and its length is half of the third si
Answer:
60
Step-by-step explanation:
how many millimeters equal 40.7 cm?
Answers
Answer:
407
Step-by-step explanation:
Answer please
Fast
Fast
Answers
Answer:
A. 228.5
B. 10
Step-by-step explanation:
A. Since x represents the number of months, replace x with 6 in the equation. Then multiply 29x6, which equals 174. Then add 174+54.5, which equals 228.5.
B. You need to solve for x by switching the signs in the equation. Set the original equation (29x+54.5) equal to 344.50. To solve for x, first subtract 344.50-54.5, which equals 290 (you subtract because it's the opposite of adding). Then divide 290÷29, which equals 10. You can check your work by replacing x in the original equation with 10, and if you get 344.5, your answer is correct.
Good luck :)
geometry, is this right if not whats the answer ?
Answers
==============================================
Explanation:
Because S and T are midpoints of segments PQ and QR, we know that ST is a midsegment of triangle PQR. Consequently, this means ST is parallel to PR.
From the same side interior angle theorem, the angles (11x-3) and (5x-9) are supplementary angles. This is only true because of the parallel lines.
So we can say the following:
(angle P) + (angle S) = 180
(5x-9) + (11x-3) = 180
(5x+11x) + (-9-3) = 180
16x - 12 = 180
16x = 180+12
16x = 192
x = 192/16
x = 12
--------------------------
Use this to find angle PST
angle PST = 11x-3
angle PST = 11*12-3
angle PST = 132-3
angle PST = 129 degrees
--------------------------
Optionally we can find angle QPR
angle QPR = 5x-9
angle QPR = 5*12-9
angle QPR = 60-9
angle QPR = 51 degrees
As a check, adding the two angles we found should get us 180
(angle PST)+(angle QPR) = 129+51 = 180
The answer checks out.
They want me to put something here and the question is the picture
Answers
Answer:
D. (1, -2)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define systems
5x - 2y = 9
3x + 4y = -5
Step 2: Rewrite systems
10x - 4y = 18
3x + 4y = -5
Step 3: Solve for x
Add to equations together: 13x = 13Divide 13 on both sides: x = 1Step 4: Solve for y
Define: 3x + 4y = -5Substitute in x: 3(1) + 4y = -5Multiply: 3 + 4y = -5Isolate y term: 4y = -8Isolate y: y = -2And we have our final answer!
Solve for x. Type only the number in the space below.
Answers
Answer:
-6
Step-by-step explanation:
x+56+x+136=180
2x+192=180
-192 -192
2x=-12
/2 /2
x=-6
What is the correct answer for both?
Answers
Answer:
11. C.
12. B.
Step-by-step explanation:
Factor them
How many terms are there in the following expression: 3a + 3ab + 7b – 2c – 4d?
5
9
7
1
Answers
Answer: 5
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