Answer:
The lateral surface area of a square pyramid is the sum of the areas of the side faces only, whereas the surface area is the lateral area + area of the base. The lateral area of a square pyramid = 2al (or) 2a√[(a 2 /4) + h 2]. To get the surface area, we need to add the area of the base (which is a 2) to each of these formulas.The surface area of a square pyramid = a 2 + 2al (or) a 2 + 2a[(a 2 /4) + h 2]. where, a = Length of the base (square) l = slant height; h = height of the pyramid.
Step-by-step explanation:
hope this helps if not let me know have a great day :)
Hey this is math algebra can u guys help?
Answer:
k = 15
Step-by-step explanation:
k + 45 = 60
k = 60 - 45
k = 15
Somebody dont just tell me the answer but tell me the steps so that i can prove my answer.
Answer:
e. $44.20
Step-by-step explanation:
1. add all of the percentages together and subtract them by 100. this will give the percentage she wasted on food: 17%
2. convert 17% into a decimal: .17
3. multiply 260 by .17 this should give you 44.2
The volumes of two similar figures are given. The surface area of the larger figure is given. Find the surface area of the smaller figure.
V=648 m^3
V=1536 m^3
S.A.=864 m^2
Step-by-step explanation:
the volume of a figure bases always on a calculation that multiplies 3 dimensions.
while a surface area bases always on a calculation that multiplies 2 dimensions.
since the figures are similar, that means that all dimensions or side lengths of one figure correlate to the corresponding dimensions or side lengths of the other figure via the same scale factor f.
and that means that
large side length = small side length × f.
and that means that f has to be multiplied in 3 times for the volume and 2 times for the surface area (once for every dimension).
so,
large volume = small volume × f × f × f =
= small volume × f³
1536 = 648 × f³
f³ = 1536/648 = 64/27
f = 4/3
and
large surface = small surface × f×f =
= small surface × f²
small surface = large surface / f² = 864 / 16/9 =
= 864 × 9/16 = 54 × 9 = 486 m²
y varies directly as x. y=96 when x=8. find y when x=10
simplify answers if applicable
which point shows the approximate value of √40 on the number line
Answer:
6
Step-by-step explanation:
There is no perfect square root of 40 but when calculated it would be 6.33 which rounds down to 6.
what exactly are the answers?
Answer:
40%, 40%
Step-by-step explanation:
The % of shoppers that have an email account is
100 × Sum of shoppers under "email account" row/ Total number of shoppers= 100 • (45+15)/150
= 40%
Same thing happens with the second question.
100 × Sum of shoppers in "Computer at home" column/ Total number of shoppers= 100•(45+15)/150
= 40%
What is the length of the indicated side?
Answer:
Step-by-step explanation:
F(x) = x^2 - 1
1.What's the vertex
2.Find the Domain
3 Find the Range
4. Find The Axis of symmetry
Answer:
Vertex: ( − 2 , 3 ) Axis of Symmetry: x = − 2 Domain: R Range: R ≥ 3
Step-by-step explanation:
Explanation:
The "vertex form" for a parabola is XXX g ( x ) = m ( x − a ) 2 + b XXXXXX with the vertex at ( a , b ) To convert g ( x ) = 3 x 2 + 12 x + 15 into "vertex form" Extract the m XXX g ( x ) = 3 ( x 2 + 4 x ) + 15 Complete the square XXX g ( x ) = 3 ( x 2 + 4 x + 2 2 ) + 15 − 3 ( 2 2 ) XXX g ( x ) = 3 ( x + 2 ) 2 + 3 In complete vertex form: XXX g ( x ) = 3 ( x − ( − 2 ) ) 2 + 3 with the vertex at ( − 2 , 3 ) The equation is of the form for a parabola with a vertical axis of symmetry opening upward and since the axis of symmetry passes through the vertex, the axis of symmetry is x = − 2 g ( x ) = 3 x 2 + 12 x + 15 is defined for all Real values of x , therefore the Domain is x ∈ R . g ( x ) has values for all points at or above the vertex, therefore the Range is g ( x ) ∈ R ≥ 3 graph{3x^2+12x+15 [-7.85, 6.196, -0.84, 6.186]
Question
Find the value of y for the given value of x.y=x/3+5;x=6
[tex]xy = \frac{x}{3} + 5\\x = 6\\(6)y = \frac{(6)}{3} + 5\\6y = 2 + 5 = 7\\y = \frac{7}{6}[/tex]
Exercise 8: The main stairway in a block of flats has three switches for controlling the lights. Switch A is located at the top of the stairs, switch B is located halfway up the stairs and switch C is positioned at the bottom of the stairs. Design a logic network to control the lights on the staircase.
The logic network to control the lights on the staircase; has been designed as seen below.
How to describe Computer Logic Gates?
The truth table for the required response of the question is;
SWITCH A SWITCH B SWITCH C Y
0(OFF) 0(OFF) 0(OFF) 0(OFF)
0(OFF) 1(ON) 1(ON) 1(ON)
1(ON) 0(OFF) 1(ON) 1(ON)
1(ON) 1(ON) 0(OFF) 1(ON)
1(ON) 1(ON) 1(ON) 0(OFF)
The expression for the output Y in SOP form will be;
A ⊕ B ⊕ C = A⁻B⁻C + AB⁻C⁻ + A⁻BC⁻
That's the output expression for the XOR gate.
Thus, we can conclude that in the staircase wiring, higher output is obtained when two out of three of the inputs are different.
Read more about Logic Gates at; https://brainly.com/question/14458200
#SPJ1
URGENT Find Area of shapes. Need to complete by 11:30 to pass!
Lilly plotted the points ( - 6 , 4) and ( - 2 , 4) on a coordinate plane. Then she plotted their reflections across the x-axis. What are the locations of the reflected points ?
Answer:
(-6,-4)
(-2,-4)
Step-by-step explanation:
Step 1. Plot points
Step 2. Reflection over x-axis (make "y" negative)
Reflection:
(-6,4) --> (-6,-4)
(-2,4) --> (-2,-4)
BRAINLIEST please if this helped!can someone please answer this question?
Answer:
254.34 mm²
Step-by-step explanation:
Diameter (d) = 18 mm
Radius (r) = d/2 = 18/2 = 9 mm
π = 3.14
Area of the circle
= πr²
= (3.14)(9)²
= 3.14 × 81
= 254.34 mm²
____________
Hope it helps ⚜
diameter= 18mm
to find:the area of the circle
solution:[tex]area = \frac{1}{4} \pi {d}^{2} [/tex]
[tex]a = \frac{1}{4} \times \pi \times {18}^{2} [/tex]
[tex]a = 254.469 \: {mm}^{2} [/tex]
hence, the area of the circle is 254.469 square millimeters.
The temperature T in degrees Celsius varies with position (x,y), in centimeters, on the surface of a flat metal plate. Let T=x^3-3xy^2. Determine the direction and magnitude of the maximum decrease of temperature at the point (1, 0.5).
Answer:
To find the directional derivative in the direction of the vector (1,2), we need to find a unit vector in the direction of the vector (1,2). We simply divide by the magnitude of (1,2). u=(1,2)∥(1,2)∥=(1,2)√12+22=(1,2)√5=(1/√5,2/√5).
Answer:To find the directional derivative in the direction of the vector (1,2), we need to find a unit vector in the direction of the vector (1,2). We simply divide by the magnitude of (1,2). u=(1,2)∥(1,2)∥=(1,2)√12+22=(1,2)√5=(1/√5,2/√5).
Step-by-step explanation:
Witch one a b c d e giving brainlest
Answer:
E
Step-by-step explanation:
if the x value or y value is 0 the equation is undefined
What is the value of w?
Answer:
29.3 degrees
Step-by-step explanation:
90 - 60.7 = 29.3 degrees
Find X exactly. Answer should be in a square root.
SM 4 - 7 A shoe store marks up
its merchandise by 8%. What is the
selling price of a pair of shoes
whose wholesale price was
$34.50?
Assuming $34.50 is the price after the 8% price increase, we can set up this equation (if 34.50 is the old price, scroll down):
34.50=[tex]\frac{108}{100} x[/tex]
Where x ( or 100/100 x) is the original price.
We can simply the fraction, or just multiply by 100 on both sides.
3450=108x
x=31.9444 (4 repeating).
If the old price is 34.50, then we can set up this equation:
34.50+ [tex](\frac{8}{100} *34.50)[/tex] = x
34.5 + 2.76 = x
x = 37.26
The new selling price would be $37.26.
A company collects data on its employees. It finds that
. 20% of employees in each department are part-time,
80% of employees in each department are full-time, and
• each of the company's four departments has 45 employees.
How many part-time and full-time employees does the company have?
Answer:
9 Part-time employees
36 full-time employee
Step-by-step explanation:
20% multiply by 45 = 9
80% multioly by 45 =36
therefore to check if your answers are correct add 9 + 36 which gives you 45, the total number of employees in each company's four department.
Answer:
The company has 144 full-time employees and 36 part-time employees.
Step-by-step explanation:
The company has 144 full-time employees and 36 part-time employees because you have to do .20*45 to get 9 part-time employees per department. Then you can do 45-9 to get 36 full-time employees per department or you can do .8*45, either way is fine. Then you have to multiply 36 by 4 and 9 by 4 to get 144 full-time employees and 36 part-time employees.
What is the explicit formula for this sequence?
-6, -2, 2, 6, 10, ...
Answer:
4n-10, Answer is D
Step-by-step explanation:
First we will use n as any number.
the difference between each of the numbers is +4
This creates first part of the formula.
4n...
If you do 4n and replace n as one (For the first number of the sequence) then 4×1=4. You then have to find out how much you need to add or subtract to get -6 so the difference between 4 and -6 is -10.
This creates the second part of our formula.
4n - 10
You can check this by doing the same thing for the second number and replacing n with 2.
2×4=8
8 - 10= -2 which is the second number in the sequence which confirms this is correct.
35
Three boxes are shipped on a truck. Each box has a base of 16 square feet. Two of the
boxes have a height of 3 feet and one box has a height of 5 feet. What is the total
volume, in cubic feet, of the three boxes?
A
240
B
176
С
144
[tex]\neq \lim_{n \to \infty} a_n \pi x_{123} \alpha[/tex]Answer:
Step-by-step explanation:
There are 3 boxes. The formula for volume is lxhxw, (length x height x width)
PLEASE HELP TY
A number is chosen at random from 1 to 50. Find the probability of selecting numbers with a last digit of 9.
Answer:
10%
Step-by-step explanation: there are 5 numbers from 5 to 50 ending in 9. 5 is 10% of 50. Hope this helped
creat an inequality that shows the height,x, in feet, a person must be to go on this ride
The tongue of a giraffe is about 18 inches long. How many centimeters long is it?
Answer:
18 inches is equal to 46 CM rounding or 45.72 CM without rounding.
Please mark brainliest if this helped you :)
Step-by-step explanation:
A scale drawing of a rectangular object has a scale of 1 in. : 6 ft. The scale drawing has a length of 7 inches. What is the actual length?
Answer:
42 feet
Step-by-step explanation:
1 inch = 6 feet
then multiply both sides by 7
7 inches = 42 feet
I just made a purchase of $130.00 but once I got my car and looked at the receipt, I realized the salesperson who helped me did not apply the 15% discount
Answer:
Guessing you want me to figure out what your cost should have been. On it!
Step-by-step explanation:
130 * .15 = 19.5
130 - 19.5 = $110.5
That should be the new cost.
The price of the thing after applying 15% discount is $110.50.
What is percentage?Percentage is a measurement to find value of given number out of hundred.
Given that,
The price at which thing is purchased = $130.
Since, The salesperson forgot to give a discount of 15%.
The discounted price = 130 x 15 %
= 130 x 15/100
= 1950/100
= $19.5
The price after discount = 130 - 19.5 = 110.5
The required price after discount is $110.5.
To learn more on Percentage:
https://brainly.com/question/24120406
#SPJ2
7n = 7; n=0 solution or not a solution
Answer:
No
Step-by-step explanation:
Plugging in n=0 into the equation gets us:
7(0) = 7
0 = 7
This says that 0 = 7 which is not true
please help I don’t understand this
Answer:
136
Step-by-step explanation:
First you multiply 7•5 which is 35, and sense there is 2 squares with that unit, you multiply 35•2 which is 70. After that you get the middle value by multiplying 6•7, which is 42. Then you add 42+70, and that's 112. Now you have to find the area of the triangle, so you multiply 6•4, and that's 24, but sense there are 2 of them with the same unit you don't need to divide by 2. Then after that you add 112+24 and the total area is 136
Answer:
136 square units
Step-by-step explanation:
A "net" is a map of the surfaces of the prism. If you cut it out and fold along the solid lines, you can shape it into the triangular prism it represents. The area of the net is the area of the prism.
As with any composite figure, its area can be found by decomposing it into parts whose area formulas you know. Here, the net can be cut along the horizontal lines to form a rectangle and two triangles.
__
rectangleThe rectangle has an overall length of 5+6+5 = 16 units, and a width of 7 units. Its area is ...
A = LW
A = (16)(7) = 112 . . . . square units
trianglesEach triangle has a base of 6 units and a height of 4 units. Its area is ...
A = 1/2bh
A = 1/2(6)(4) = 12 . . . . square units
total areaThe composite figure shown has been decomposed into one rectangle and two triangles, so its total area is ...
rectangle area + 2 × triangle area
= 112 + 2×12 = 136 . . . . square units
The surface area of the triangular prism is 136 square units.
NO LINKS!! Find the perimeter of the figure
Answer:
178
Step-by-step explanation:
Perimeter = distance all the way around the outside of a 2D shape
Missing vertical length = 45 - 14 - 17 = 14
Missing horiztonal length = 44 - 8 - 29 = 7
⇒ perimeter = 45 + 8 + 17 + 29 + (45 - 14 - 17) + (44 - 8 - 29) + 14 + 44
= 45 + 8 + 17 + 29 + 14 + 7 + 14 + 44
= 178
Answer:
First finding the perimeter of rectangle
Step-by-step explanation:
Which is 2(17+8)=2(25)=50
Now finding the perimeter of next rectangle
Which is 2(45+29) = 2 (74) =148
Now finding the perimeter of next rectangle
Which is 2(44+14)=2(58)=116
Adding them up we get 116 + 50 +148=314
178 is the correct answer however
I do not why 178 is correct
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASEFind the midpoint M of the line segment joining the points P = (4, 2) and Q = (-6, -8)
Answer:
(- 1, - 3 )
Step-by-step explanation:
the coordinates of the midpoint are the average of the coordinates of the endpoints, then
midpoint = ([tex]\frac{4-6}{2}[/tex], [tex]\frac{2-8}{2}[/tex] ) = ( [tex]\frac{-2}{2}[/tex], [tex]\frac{-6}{2}[/tex] ) = (- 1, - 3 )