Answer:
42 easy :)
Step-by-step explanation:
8. Find the surface area of a triangular pyramid if the area of each phase is 16 cm² and each of its lateral faces has an area of 9 cm².
Answer:
The base of a right pyramid is an equilateral triangle with area 16√3 cm². area of one of its lateral faces is 30 cm²
To find : height (in cm) i
Solution:
The base of a right pyramid is an equilateral triangle with area 16√3 cm²
Area of an equilateral triangle = (√3 / 4) Side ²
(√3 / 4) Side ² = 16√3
=> Side ² = 64
=> Side = 8 cm
Distance of center of triangle to mid point of Side for Equilateral triangle = side/ 2√3 = 8/ 2√3 = 4/√3
Let say Height = H
Slant Height = √((4/√3)² + H²)
Area of lateral surface = (1/2) * base * Slat Height
= (1/2) * 8 * Slant height = 30
=> Slant height = 15/2
15/2 = √((4/√3)² + H²)
=> 225/4 = 16/3 + H²
=> 611/12 = H²
=> H = 7.135 cm
Step-by-step explanation:
Can someone help me with these questions. Find the probability of them all. They ARE NOT answer choices they are QUESTIONS. I will report you if you do not follow directions
Answer:
Step-by-step explanation:
21: 9/15+1/4= 0.85, if you turn that into a percent it is 85%
23: 7/15+1/4 = 0.716, turned into a percent is 71.6%
i dont have the time to finish the rest rn, sorry
The Philadelphia Museum of Art’s triangular pediment has the measurements shown in the diagram. What is the area?
840 ft2 , 840 ft^2
58 ft2 , 58 ft^2
420 ft2 , 420 ft^2
82 ft^2
Answer:
420 ft^2
Step-by-step explanation:
12x70=840
840/2=420
Calculate the area of each shape below. Figures are not drawn to scale.
Answer:
triangle 1: 30
triangle 2: 30
rectangle: 144
Step-by-step explanation:
triangle 1: (12*5)/2
triangle 2: (12*5)/2
rectangle: 12*12 = 144
Write and solve an equation to find the value of x
How is unit rate related to the linear equation?
Answer:
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/cc-8th-graphing-prop-rel/v/graphing-proportional-relationships-example
Step-by-step explanation:
Answer:
A proportional relationship between two quantities is one in which the two quantities vary directly with one and other. If one item is doubled, the other, related item is also doubled. Because of this, it is also called a direct variation. The equations of such relationships are always in the form y = mx , and when graphed produce a line that passes through the origin. In this equation, m is the slope of the line, and it is also called the unit rate, the rate of change, or the constant of proportionality of the function.
What value from the set [4.5.6.7.8] makes the equation 8x + 1 = 57 true? Show your work?
No fake/scam answers - No "i dunno" answers - no gacha life avatars
Answer:
7
Step-by-step explanation:
8x+1=57 subtract 1 from each side
8x=56 divide by 8
x=7
A rectangular room measures 10 feet by 12 feet. Find the cost to install new baseboards around the room if the cost of the baseboard is $0.66 per foot.
Create an equivalent expression that includes a set of parentheses that make the value of the expression 5. Remember, you can have two or more numbers within the set of parentheses.
32+10-8+2-3.GIVING BRAINLYEST
Myron records the number of chirps per minute (x) that crickets make at different temperatures(Y ) in degree Fahrenheit. he determines that the association is linear and that the line of best fit is Y=1/6x+60.what is the interpretation of the slope and y intercept of this question?
Option (D), predicts the interpretation of the slope and y-intercept of this equation is the correct answer.
What is a linear equation?A Linear Equation is an equation of a line. An equation in which the highest power of the variable is always 1. A linear equation is represented graphically by the line whose points give the collection of solutions of the equation.
For the given situation,
The graph shows the Myrons record of number of chips per minute to temperature in degrees.
Let x be the number of chirps per minute.
Let y be the crickets make at different temperatures in degree Fahrenheit.
The linear equation of line that best fit is Y = 1/6x + 60.
The general form of equation is y = mx + c, where m is the slope and c is the y-intercept.
Here slope, [tex]m=\frac{1}{6}[/tex] and
y-intercept = [tex]60[/tex]
From the graph, the slope predicts a temperature increase of about (1/6)° for every increase of 1 chirp per minute. The y-intercept shows that when crickets are not chirping (x=0), the temperature is 50°.
Hence we can conclude that option (D), predicts the interpretation of the slope and y-intercept of this equation is the correct answer.
Learn more about linear equations here
https://brainly.com/question/19998526
#SPJ2
A sign says that the price on all music equipment is 30% off the original price. you buy an electric guitar for the sale price of $315.
A-what is the original price?
B-How much money did you save off of the original price?
C-What percent of the original price is the sale price?
Answer:
Step-by-step explanation:
sale price = original price minus discount.
discount = original price * discount percent / 100.
let s represent the sale price.
let p represent the original price.
let d represent the discount.
let k represent the discount percent.
the above formulas become:
s = p - d
d = p * k/100
we know that s = 315.
we know that k = 30.
formulas become:
315 = p - d
d = p * 30/100
simplify these formulas to get:
315 = p - d
d = .3p
Find the base area!!!!! Please help me
Answer:
24 cm^2
Step-by-step explanation:
The base is 4cm by 6cm, so the base area is 24cm^2
The height (h) would be equal to V/A =[tex]\frac{240}{24}[/tex] = 10cm
Answer
the answer is 10 but i dont see the answer so i think it's 40cm
Step-by-step explanation:
PLS HELP THANK YOUUU- NO BITLY
Answer:
B
Step-by-step explanation:
35/5 = 7 chocolate chips per cookie
15 x 7 = 105
100>105
Find the constant of proportionality for the table of values and write in the form y = kx
A) y = 1/4x
B) y = 4x
C) y = 6x
D) y = 24x
Answer:
Option 'B' is correct.
Step-by-step explanation:
Since we have given that
Number of lemons used is denoted by 'y'.
Number of glasses of lemonade is denoted by 'x'.
As we can observe that ,
[tex]\frac{6}{24} = \frac{8}{32} = \frac{7}{28} = \frac{2}{8} = \frac{4}{16} = \frac{1}{4} \\[/tex]
so we can write i as
[tex]\frac{x}{y} = \frac{1}{4}[/tex]
By cross multiplication
y=4x
So, if write it in the form y=kx,
It will be y=4x.
Find the missing angle.
Answer:
45°
Step-by-step explanation:
All angles in a triangle add up to 180°
180 - (90 + 45)
= 180 - 135
= 45
Therefore the missing angle is 45°
Answer: answer is 45
Step-by-step explanation:
I added 90 with 45, got 135, then subtracted 180 with 135...
In the inequality -9 ≤ 9, which number appears farther left on a number line and why?
A~ 9 appears farther left because 9 is smaller than -9
B~ -9 appears farther left because -9 is smaller than 9
C~ -9 appears farther left because -9 is larger than 9
D~ 9 appears farther left because 9 is larger than -9
Answer: B
because of the reason given. (smaller numbers are father left and larger numbers are father right on the number line).
Answer: A is the answer
Step-by-step explanation: since -9 is a negative is and 9 is positive, -9 will appear furthest to the left on a number line.
Please help me with this volume problem!♪☂♧(^.^)
Answer:
C
Step-by-step explanation:
Slope of the graph?
( irrelevant answers and links will be reported)
I WILL GIVE BRAINLIEST!
(Picture provided)
What is m
A. 56°
B. 68°
C. 112°
D. 124°
Answer:
I couldn't tell which angle you meant, so the two missing angles are Q = 56 and S = 68
Step-by-step explanation:
Q = 180 - 124
Q = 56
56 (angle Q) + 56 (angle R) = 112
S = 180 - 112
S = 68
10. Consider the diagram below.
A. solve for x
B. Solve for y
Answer:
y = 26 x= 42
Step-by-step explanation:
ftt5tffr4gfgghji89iiiu7jj
How can the addition porperty of equality be used to solve substraction equations? (Please answer correctly)(no links)
Answer:
just as you can add the same value to each side of an equation without changing the meaning of the equation, you can subtract the same value from each side of an equation.
by-step explanation:
x+7=42
Since 7 is being added to the variable, subtract 7 to isolate the variable.
To keep the equation balanced, subtract 7 from both sides of the equation.
x+7=42
-7 over x+0
-7 over 35
so answer is 35
the fraction 5/8 is located between what two fractions?
A. 1/4 and 2/5
B. 8/9 and 3/5
C. 1/2 and 2/3
D. 3/7 and 10/16
There is approximately 0.62 km in 1 mile. If you walk 12.5 miles, how many kilometers did you walk?
Answer:
Approximately 8.125 km
Step-by-step explanation:
The ratio 0.62 : 1 is equal to the ratio 8.125 : 12.5
To get this answer
Multiply both sides of the ratio by 12.5. 0.62(×12.5) : 1(×12.5)Your answer will be 8.125 : 12.5The final answer would be 8.125 km : 12.5 miles.Types of submarines and the depths are below sea level they can safely reach are down below are shown in the table below. (The photo)
Which two types of submarines can reach depths farthest from sea level?
A) Pleasure, Military
B) Scientific, Alternative Propulsion
C) Alternative Propulsion, Military
D) Guided Missile, Scientific
Answer:
D
Step-by-step explanation:
The greatest, farthest depths listed are the Guided Missile and Scientific submarines' depths, 850 and 925 feet. So, The answer is D, Guided Missile and Scientific.
Good luck ^^ Hope this helps :)
Find the area of the triangle.
Answer:
Step-by-step explanation:
8.12 / 2
96 / 2
= 48
have a nice day!Answer:
48 m²
Step-by-step explanation:
[tex]A=\frac{1}{2}bh\\=\frac{1}{2}*8*12\\=4*12\\=48[/tex]
MATH RIDDLE! hey guys it’s been a while but I got another one! Have fun! Brainliest on the line!
Answer:
Okkkk what is the riddle
Step-by-step explanation:
Can someone help me ??
Answer:
the first one third one and last one
Step-by-step explanation:
1.What are the 3 central beliefs of Christianity
(20 Points)
A. Trinity
B. The Resurrection
C. Easter Bunny
D. Salvation
E. Buddhism
F. polytheism
Answer:
A, B, and D.
Step-by-step explanation:
A. represents the Holy Trinity. Christians have the belief that the whole universe was created by God.
B. represents the 3rd day after Jesus died, but then he rose. This is the day that Christian's celebrate as Easter.
D. represents the deliverance from sin and its consequences, believed by Christians to be brought about by faith in Christ.
Hope this helps! :)
God Bless
All students in Ridgewood Junior High School either get their lunch in the school
cafeteria or brought it from home on Tuesday. 10% of students brought their lunch.
41 students brought their lunch. How many students in total are in Ridgewood Junior
High School?
Please help!!
Answer:
410 students attend Ridgewood Junior High.
Step-by-step explanation:
To solve your equation, you have to divide 41 by 10%. This will give you your answer of 410, or the total. Have a good day!
49. Calculate the value of c in the triangle below.
Answer:
26 cm
Step-by-step explanation:
c = a^2 + b^2 = 10^2 + 24^2 = 26
Answer:
26m.
Step-by-step explanation:
since the triangle has a 90° angle, it means that the triangle is a Right - angled triangle. So, we are going to use the pathagorean theorem to find the missing side.
a² + b² = c²
a and b are the two shorter and adjacent sides to the 90° angle
c is the hypotenuse
10² + 24² = c²
100 + 576 = c²
676 = c²
find the square root of 676 to get c = 26.