Answer:
Step-by-step explanation:
Help plz :)
Determine the measure of each unknown angle using the diagram.
Rafael is cutting pieces of wood to make a triangular pyramid like the one shown below. The base of the pyramid is an equilateral triangle, and the faces are isosceles triangles.
Answer:
[tex]Total = 32.4in^2[/tex]
Step-by-step explanation:
Given
See attachment for triangle
Required
The surface area of the pyramid
To do this, we calculate the surface area of each of the pyramid faces.
For the equilateral triangle.
[tex]Base = 4.5in[/tex]
[tex]Height = 3.9in[/tex]
The area is:
[tex]A_1 = 0.5 * Base * Height[/tex]
[tex]A_1 = 0.5 * 4.5in * 3.9in[/tex]
[tex]A_1 = 8.775in^2[/tex]
There are 3 isosceles triangles of equal dimension.
[tex]Base = 4.5in[/tex]
[tex]Height = 3.5in[/tex]
The area of one of them is:
[tex]A_2 = 0.5 * 4.5in * 3.5in[/tex]
[tex]A_2 = 7.875in^2[/tex]
For the 3, the surface area is:
[tex]3A_2 = 7.875in^2 * 3[/tex]
[tex]3A_2 = 23.625in^2\\[/tex]
The total surface area is:
[tex]Total = 8.775in^2 + 23.625in^2[/tex]
[tex]Total = 32.4in^2[/tex]
Which triangles are similar to DEF?
A. ADFG
Β. ΔEGF
C. ΔFEG
D. ΔGDF
Answer:
C&B i Think this is it
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Answer:
The answer is b and c
Step-by-step explanation:
Plz answer I'll give brainliest
Answer:
900<x<1100
Step-by-step explanation:
The third side must be greater than the difference of the other two sides
10000- 1000 < 10x
9000< 10x
Divide by 10
9000/10 < x
900 < x
The third side must be smaller than the sum of the other two sides
10000+1000 > 10x
11000>10x
Divide by 10
11000/10>10x/10
1100>x
900<x<1100
What is the surface area of the solid?
A.
189 square centimeters
B.
329 square centimeters
C.
154 square centimeters
D.
164.5 square centimeters
Answer:
A
Step-by-step explanation:
First u need to do the square 7 times 7 is 49 and one triangle is 70 and divide that by 2 it will equal 35 so there is 4 triangles so times that by 4 is will equal 140 and plus 49 is will equal 189
Answer:
hey
Step-by-step explanation:
option A) i.e. 189 cms
Parallelogram Q T S R is shown. Sides Q T and R S are parallel, and sides Q R and T S are parallel. Angle Q is (9 x minus 6) degrees and angle R is (8 x minus 1) degrees. Devin started the work shown to solve for the unknown angle measures. 8x – 1 + 9x – 6 = 180 17x – 7 = 180 17x = 187 What are the measures of angles Q and R? m∠Q = ° m∠R = °
Answer:
m<Q = 93 degrees
m<R = 87 degrees
Step-by-step explanation:
Given the following angles;
m<Q = 9x-6
m<R = 8x-1
Looking at Devin's work, we will see that he the sum of both angles is 180 degrees
Hence m<Q + m<R = 180
9x - 6 + 8x - 1 = 180
9x+8x-6-1 = 180
17x - 7 = 180
17x = 180 + 7
17x = 187
x = 187/17
x = 11
Get m<Q
m<Q = 9x - 6
m<Q = 9(11) - 6
m<Q = 99 - 6
m<Q = 93 degrees
Get m<R
m<R = 180 - m<Q
m<R = 180 - 93
m<R = 87degrees
Answer:
93 and 87
Step-by-step explanation:
edge 2021
[AB] is a diameter of center C(O, 3cm). M is a point on (C) such that MA=MB. D is the symmetric of A with respect to M.
What is the nature of triangle AMB? Justify.
Answer:
Isosceles right triangle.
Step-by-step explanation:
From the given triangle ABM,
AM ≅ MB [Given]
∠AMB is an angle subtended by the diameter AB.
By theorem, angle subtended by a diameter is always 90°.
m∠AMB = 90°
So the given triangle is a right triangle with two equal sides AM and MB.
Therefore, ΔAMB is an isosceles right triangle.
A cylindrical well has a radius of 10 feet and a height of 15 feet. What
volume of water will it take to fill in the well?
Answer:
Look below.
Step-by-step explanation:
We can use the information provided to plug it into a...
Fomula to find a volume of a cylinder:
V=πr^2h
V=π(10)^2(15)
V≈4712.39ft
I'm begging you. Please help me. Its 12:23 at night and these are the last problems. I am BEGGING you. PLEASE don't steal these points, or put in a fake link.
There are 36 quarters in my coin collection. If my coin collection has 45% quarters, how many total coins do I have?
9514 1404 393
Answer:
80
Step-by-step explanation:
If N is the total number of coins, then the number of quarters is ...
36 = 0.45×N
36/0.45 = N = 80
You have 80 coins you your collection.
What is the image point of (2,-5)(2,−5) after a translation right 4 units and up 3 units?
Answer:
(5,-1)
(5,-1)
Im pretty sure
Evaluate 7d, when d = 9 please!
Answer:
63
Step-by-step explanation:
When d=9, the equation should be 7 times 9 because you need to plug 9 in. Therefore, 7 times 9 is 63! I hope that helps!
Find the oth term of the geometric sequence 9, -27, 81, ...
What is the distance between points S and U if S is 2, 1 and U is 6, 8
Round to the nearest tenth of a unit.
A. 3.3 units
B. 6.4 units
C. 8.1 units
D. 12.0 units
The distance formula is:
D = sqrt((x2-x1)^2 + (y2-y1)^2)
D= sqrt ((6-2)^2 + (8-1)^2)
D = sqrt(4^2 + 7^2)
D = sqrt( 16 + 49)
D = sqrt(65)
D = 8.06
Rounded to the beat tenth = 8.1 units.
The answer is C. 8.1 units
Answer:
C
Step-by-step explanation:
S has coordinates (2 , 1) and U has coordinates (6, 8) . Computing the SU vector gives us (4 , 7)
taking the distance formula : sqrt(4^2 +7^2)
= sqrt(65) = 8.1 which is answer C
lol I am having an exam ....no but help
.
when arturo makes a muffin recipe there is a priportional relationship between the number of teaspoons of bakin powder and the number of muffin , the table below shows that relationship.what is the constant of proportionality
Answer:
3
Step-by-step explanation:
It should be 3 because when you look at it divide them all and each one gives you 3. If it's not then sorry.
Arrange the numbers in ascending order 2121,3625,8750,6540
Answer:
2,121, 3,625, 6,540, 8,750
Step-by-step explanation:
A ladder is 51 inches tall. How tall is it in feet and inches?
Answer:
4 feet and 3 inches
Step-by-step explanation:
The measure of ladder in feet is 4.15.
Given that, a ladder is 51 inches tall.
Metric Conversion refers to the conversion of the given units to desired units for any quantity to be measured.
We know that, 1 feet = 12 inches
So, in inches = 51/12
= 4.25 feet
Therefore, the measure of ladder in feet is 4.15.
To learn more about the metric conversion visit:
brainly.com/question/21244256.
#SPJ6
what is the formula for finding the magnitude of a line?
Answer:
See below
Step-by-step explanation:
The magnitude of a line can simply be found by the distance formula:
Distance = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Scientists are studying a bacteria sample. The function f of x equals 256. 1.15 to the x. gives the number of bacteria in the sample at the end of x days. Which statement is the best interpretation of one of the values in this function?
Answer:
the number of bacteria increases at a rate of 15% each day
Step-by-step explanation:
Given the function :
f(x) = 256(1.15)^x
The function represents an exponential growth function ; comparing the equation with the general form of an exponential growth function :
f(x) = A(1 + r)^t
A = the initial value of the population, = 256
(1 + r),; r = growth rate
Therefore, to solve for r ;
1 + r = 1.15
r = 1.15 - 1 ; r = 0.15
Hence, growth rate = 0.15 = 0.15 * 100% = 15%
Hence, the number of bacteria increases at a rate of 15% each day
Circle the smaller number: 0.123 0.13. Explain how to use the grids below to support your answer.
Answer: The smallest number is 0.123
Step-by-step explanation:
We want to find the smallest number between:
0.123 and 0.13
To do it, we first need to look at the largest digit of each number and see which one is larger.
In both cases we can see that the largest digit for both numbers is the first digit after the decimal point.
For both numbers this digit is 1, so we can't conclude nothing yet.
Now we need to look at the next digit.
For 0.123, the second digit is 2.
For 0.13 the second digit is 3.
Then the second digit is larger for 0.13, this means that 0.123 is the smallest number.
I can not explain you how to use the grids below because i can not see them in the question.
Samuel needs 233 feet of wood to build a fence.The wood comes in lengths of 11 feet. How many prices will samuel need to buy?
Answer:
21 pieces
Step-by-step explanation:
Given that,
Length of wood needed = 233 feet
The wood comes in lengths of 11 feet.
We need to find the number of pieces samuel need to buy. It can be done as follows :
Let he needed x peices. So
[tex]x=\dfrac{233}{11}\\\\x=21.18\\\\or\\\\x=21[/tex]
So, he will need approx 21 peices.
my borther needs help with this problem
Answer:
Hey there down here
Step-by-step explanation:
14+10+6 = 40-10
14+10+6 = 30
30=40-10
so 14+10+6 = 40-10
5 daños colaterales de los avances medicos
Answer:
1. Dosis de la vacuna de Oxford
Step-by-step explanation:
Which expression is equivalent to the expression shown?
(5^3)^9/5^12
5^24
5^15
5^0
5^1
Answer:
5^0
Step-by-step explanation:
(5^3)^9 = 3 + 9 = 12
= 5^12
5^12/5^12 = 12 - 12 =0
5^0
brainliest is appreciated
Brain Power! - Minds On-
(-3 + 4) x 66 + -19 x 8 - 2
Answer:
-88
Step-by-step explanation:
(-3 + 4) x 66 + -19 x 8 - 2
According to PEMDAS (or GEMDAS), you start with the parenthesis. So you do the equation in the parenthesis.
-3+4= 1
Now you replace it with your answer.
1 x 66 + -19 x 8 - 2
You next do multiplication.
1*66=66
66+ -19 x 8 -2
Multiplication again
-19*8=-152
66 + -152 - 2
Now there is only addition and subtraction left so you solve left to right.
66 + -152= -86
-86-2=-88
The answer is -88
Which speed is the fastest?
4 miles in 1/3 hour
1/3 mile in 4 hours
1/2 mile in 3 hours
Answer:
4 miles in 1/3 hour
Step-by-step explanation:
pls help :(
What is the sum of the roots of the quadratic function
below?
(3x + 2)(3x - 5)
Four less than five times a number is 11. Find the number.
Answer:
The number is 3.
Step-by-step explanation:
5x - 4 = 11
5x = 15
x = 3
Select the statement that describes this expression: 32 ÷ 4 + (fraction 1 over 2 x 16) − 2. 32 times 4 plus fraction 1 over 2 times 16, then subtract 2 32 divided by 16 added to fraction 1 over 2 plus 4, then subtract 2 Half of 16 divided by 4 plus 32, then subtract 2 The quotient of 32 and 4 added to the product of fraction 1 over 2 and 16, then subtract 2
Answer:
The quotient of 32 and 4 added to the product of fraction 1 over 2 and 16, then subtract 2
Step-by-step explanation:
Given:
32 ÷ 4 + (fraction 1 over 2 x 16) − 2.
32/4 + (1/2 * 16) - 2
32 times 4 plus fraction 1 over 2 times 16, then subtract 2
32 divided by 16 added to fraction 1 over 2 plus 4, then subtract 2 Half of 16 divided by 4 plus 32, then subtract 2
The quotient of 32 and 4 added to the product of fraction 1 over 2 and 16, then subtract 2
The statement which describes the situation is:
The quotient of 32 and 4 added to the product of fraction 1 over 2 and 16, then subtract 2
Answer:
32 times 4 plus fraction 1 over 2 times 16, then subtract 2
Step-by-step explanation:
PLS MARK AS BRAINLIEST!!!!!
plsss help i’ll give brainliest if you give a correct answer
Answer:
x = 23
Step-by-step explanation:
I hope this helps! Have a good day! :)