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Answer:
C 3674cm²
Step-by-step explanation:
1) (34×15)×2= 510×2= 1020cm²
2) (28×15)×2= 420×2= 840cm²
3) (34×28)×2= 952×2= 1904cm²
4) Total of all areas (surface area): 1020+840+1904= 3764cm²
lz helpp me i beg il give brainliest
Answer:
25% × ? = 9
? =
9 ÷ 25% =
9 ÷ (25 ÷ 100) =
(100 × 9) ÷ 25 =
900 ÷ 25 =
36
Answer:
The answer is 36
When finding a percentage you would typically multiply the decimal. Example 20% of 100. Multiply 100 x 0.20 = 20
When trying to do the opposite you would do the inverse (opposite) operation. So the inverse (opposite) operation of mulitplication is division.
Example: 20% of what number w is 20? Divide 20/0.20 = 100
Okay now lets solve your problem!
25% of what number w is 9? Divide 9/0.25 = 36
Step-by-step explanation:
25% in decimal is 0.25
9 / 0.24 = 36
Find X. Please show steps, thank you.
Answer:
C=10
Step-by-step explanation:
What is the length of the altitude of the equilateral triangle below? A. 6 B. 2 C. 2/3 D. /48 E. 36 F. 6 /3
Answer:
Step-by-step explanation:
It’s A
The length of the altitude of the right triangle given is 6.
What is Right Angled Triangle?Right angled triangle are those triangle for which one of the angle is 90 degrees.
The given triangle is an equilateral triangle.
All the sides are equal.
Each of the side = 4√3
Altitude divides one of the side in to two equal halves.
Using Pythagoras theorem,
Altitude = √(4√3)² - (2√3)²
= √(16×3) - (4 × 3)
= √48 - 12
= √36
= 6
Hence the altitude of the triangle is 6.
Learn more about Pythagoras theorem here :
https://brainly.com/question/343682
#SPJ7
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Help jajasjjaj
Answer:
x=57
Step-by-step explanation:
The sum of the angles of a triangle add to 180 degrees
(x-5) + (2x-7) + 21 = 180
Combine like terms
3x +9 = 180
Subtract 9 from each side
3x+9-9= 180-9
3x = 171
Divide by 3
3x/3 =171/3
x =57
GIVING 100 PTS AND BRAINLIEST IF ALL ARE ANSWERED CORRECTLY NOT GUESSED WITH EVIDENCE IF YOU GET THEM ALL CORRECT I WILL THROW IN 200 POINTS
Answer:
hopefully i got this right lol
Step-by-step explanation:
First Question:
2, 1
Second Question:
I'm assuming the lawn is the shaded region, which to solve you will need to calculate the area of the trapezoid and then subtract that by the area of the building.
EQUATION for area of building: l*w
48 * 64 = 3072^2ft
EQUATION for area of trapezoid: (a+b)/2h
subsitute
(100 + 150)/2 (80) = 10000
10000 - 3072 = 6928^2 ft
Third Question:
Answer: 26 1/4
Explanation: In order to find the volume of any rectangular prism, you need to multiply the length, width, and height. In this case, the equation is: 6 * 1 1/4 * 3 1/2 = 26 1/4
A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 410 gram setting. It is believed that the machine is underfilling the bags. A 22 bag sample had a mean of 408 grams with a standard deviation of 14. A level of significance of 0.05 will be used. Assume the population distribution is approximately normal. Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.
Answer:
The decision rule for rejecting the null hypothesis is [tex]t < -1.721[/tex]
Step-by-step explanation:
A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 410 gram setting. It is believed that the machine is underfilling the bags.
At the null hypothesis, we test if the mean weight of the bag is the desired value of 410, that is:
[tex]H_0: \mu = 410[/tex]
At the alternate hypothesis, we test if the bag is underfilled, that is, the mean weight is below the desired value, so:
[tex]H_0: \mu < 410[/tex]
Type of test:
As we test if the mean is less than a value, we have a left-tailed test.
We have the standard deviation for the sample, which means that the t-distribution is used.
We have 22 - 1 = 21 degrees of freedom, with a level of significance of 0.05.
Using a calculator, the critical value is [tex]t_c = -1.721[/tex]
Determine the decision rule for rejecting the null hypothesis.
We reject the null hypothesis if the test statistic is less than the critical value, so the decision rule for rejecting the null hypothesis is [tex]t < -1.721[/tex]
Whats 78 × 4 × 56 × 7 ×2
This is random just for fun:)
Answer: 244608
Step-by-step explanation: Multiply all of the numbers!
Answer:
I think it’s 244608
Step-by-step explanation:
Big number XoX
Other than itself, which angle is congruent to GDA?
Someone answer this no wrong answers begs I’ll give thanks and brainliest
Answer:
660
Step-by-step explanation:
Choose all the pairs of fractions that are equivalent.
B and E Thank you for asking I'm good at fractions!!
Which of the followinkg is a rational number that is not an integer?
-2
-0.5
0
4
1. Can the following quadratic equation be solved by factoring?
x² - x-3=0
yes
no
Answer: No. This equation can't be solved by factoring
The first 4 terms of a 10-term geometric series are listed below. Which expression represents the sum
of the series?
16
25
8 + 4 + 10 +...+ 210
5
Given:
First 10 term of a geometric series are:
[tex]\dfrac{16}{25}+\dfrac{8}{5}+4+10+...+a_10[/tex]
To find:
The expression that represents the sum of the series.
Solution:
The first term of the given geometric series is:
[tex]a_1=\dfrac{16}{25}[/tex]
The common ratio of the given geometric series is:
[tex]r=\dfrac{a_2}{a_1}[/tex]
[tex]r=\dfrac{\dfrac{8}{5}}{\dfrac{16}{25}}[/tex]
[tex]r=\dfrac{8}{5}\times \dfrac{25}{16}[/tex]
[tex]r=\dfrac{5}{2}[/tex]
The sum of first n terms of a geometric sequence is:
[tex]S_n=\dfrac{a_1(1-r^n}{1-r}[/tex]
Where r is the common ratio.
Putting [tex]a_1=\dfrac{16}{25},r=\dfrac{5}{2},n=10[/tex] in the above formula, we get
[tex]S_{10}=\dfrac{16}{25}\left(\dfrac{(1-(\dfrac{5}{2})^{10}}{1-\dfrac{5}{2}}\right)[/tex]
Therefore, the correct option is C, i.e., [tex]\dfrac{16}{25}\left(\dfrac{(1-(\dfrac{5}{2})^{10}}{1-\dfrac{5}{2}}\right)[/tex].
Answer:
the answer is option c or 16/25 ( 1 - ( 5/2 )^10 / 1 - 5/2)
Step-by-step explanation:
Instructions: Find BD, given that line AB is the angle bisector of
CAD...please help
Answer:
BD = 2
Step-by-step explanation:
here's your solution
==> in ∆ABC and ∆ ABD
==> angle C = angle D. [ = to 90° ]
==> AB is common side
==> angle BAC = angle BAD. [ BA is angle bisector]
==> hence both traingle are congruent
==> so, BD = BC. [ by C.P.C.T ]
==> BC = 2. [ Given ]
==> BD = 2
hope it helps
Once a week you babysit your neighbor's toddler after school, usually going to
a local playground. You notice that each swing on the swing set takes nearly
the same amount of time, about 2.7 seconds. Use the pendulum formula
below to find out how long the swing is. Round your answer to the tenths
place.
Answer:
l = 1.8 feet
Step-by-step explanation:
Given that,
The time period of the pendulum, T = 2.7 seconds
We need to find the length of the swing. The formula for the time period of a simple pendulum is given by :
[tex]T=2\pi \sqrt{\dfrac{l}{g}}[/tex]
Where
l is the length of the swing.
[tex]T^2=\dfrac{4\pi^2l}{g}\\\\l=\dfrac{T^2g}{4\pi^2}\\\\l=\dfrac{(2.7)^2\times 9.8}{4\times 3.14^2}\\\\l=1.8\ \text{feet}[/tex]
So, the length of the swing is 1.8 feet long.
Answer:5.4
Step-by-step explanation:
Very Important) I need help with all my Math questions if your excellent at math and is passing your math class can you click on my name and go to my math questions and please help me with them. If correct and you need to show your work ill mark you Brainliest. Also I need Help with Health Questions also. Some have 1 answer but they aren't correct still need help with them.
Answer:
Where are the questions
There are 7 women and 9 men with a chance to be on a game show. The producer of the show is going to choose 7 of these people at random to be contestants. What is the probability that the producer chooses 4 women and 3 men? Round your answer to three decimal places.
Answer:
147/572
Step-by-step explanation:
The number of combinations of n things chosen r at a time is
[tex]\binom{n}{r}=\frac{n!}{r!(n-r)!}[/tex] (Some writers use the symbol [tex]_nC_r[/tex])
Choose 4 women from the 7:
[tex]\binom{7}{4}=\frac{7!}{4!(7-4)!}=35[/tex] ways
Choose 3 men from 9:
[tex]\binom{9}{3}=\frac{9!}{3!(9-3)!}=84[/tex] ways
There are 35 x 84 = 2940 ways to choose both, out of
[tex]\binom{16}{7}=\frac{16!}{7!(16-7)!}=11440[/tex] ways to choose any 7 people from the group of 16.
Probability:
[tex]\frac{2940}{11440}=\frac{147}{572}[/tex]
P.S. As an example of how to calculate combinations, here's the calculation (by hand, a calculator is easier!) of [tex]\binom{9}{3}[/tex].
[tex]\binom{9}{3}=\frac{9!}{3!(9-3)!}=\frac{9!}{3!6!}[/tex]
When you write out the factorials, you can do a bunch of cancellation between the numerator and denominator.
[tex]\frac{9\cdot8\cdot7\cdot\cancel{6\cdot5\cdot4\cdot3\cdot2\cdot1}}{(3\cdot2\cdot1)(\cancel{6\cdot5\cdot4\cdot3\cdot2\cdot1)}}=\frac{9\cdot8\cdot7}{3\cdot2\cdot1}=84[/tex]
Which defines a line segment?
Answer: A line segment is a part of a line having two endpoints.
Im not sure if you meant to put a picture there. So, a line segment is a piece or part of a line having two endpoints. Unlike a line, a line segment has a definite length.
Based on the family the graph below belongs to, which equation could represent the graph?
Answer:
its A
Step-by-step explanation:
just took the test
Answer:
The first graph on edge 2021
question is in photo
write an expression to match the quotient of 42 and 2 subtracted from 34
Answer:
13
Step-by-step explanation:
42/2 = 21
34-21 = 13
What is the 5th term of the geometric sequence
9. 27. 81.243, ...?
Answer:
729
Step-by-step explanation:
You are multiplying 3 each time. The first 4 terms are given to you:
Term 1: 9
Term 2: 9 x 3 = 27
Term 3: 27 x 3 = 81
Term 4: 81 x 3 = 243
Term 5: 243 x 3 = 729
729 is the 5th term of the geometric sequence.
Answer:
729
Step-by-step explanation:
Each terms are multiplied by 3.
So the 5th term is 243*3 = 729.
What is the volume of the following triangular prism?
Answer:
37.8
Step-by-step explanation:
Change 12 mm to 1.2 cm
Then apply the volume rule
Area * height
A = 1.2*7=8.4
H=4.5
Volume 8.4*4.5 =37.8
Can someone please help asap
Answer:
the answer is 38
Step-by-step explanation:
because one of the angles is 90 and the other one is 45, so the other angle is 45 too
so.. this is an isosceles triangle
Please help triangle similarity
9514 1404 393
Answer:
(C) SAS
Step-by-step explanation:
The obtuse angles in each triangle are "corresponding" with respect to the segments marked parallel and the horizontal transversal.
Those angles are between pairs of proportional sides:
60/42 = 40/28 = 10/7
so, the applicable theorem is SAS. The triangles can be proven similar using the SAS theorem.
Find Mn to the nearest tenth
Answer:
B. 23.8
Step-by-step explanation:
Use the formula c = \sqrt a^2+b^2﹣2abcosy (squareroot the whole thing)
c = length of side you are finding
a = length of side a
b = length of side b
y =angle opposite c
Which decimal is closest in value to the fraction below?
NO
O A. 0.4
. B. 0.1111
O C. 0.222
Answer:
C.Step-by-step explanation:
2/9 = 0.222....
Basically, the two's repeat forever - that's why C would be the correct answer
Hope that helps! :)
-Aphrodite
how to do this so i can do the the rest pls i have to do like 20 more like this
what's the area? i need it by 7:00 AM EST time
Answer:
approx 506.52
Step-by-step explanation:
Rectangle: 21 x 12 =252
Half circle = 1/2 (3.14)(6^2) = 56.52
Trapezoid: 6 (33 +33) = 198
add all of them together
Answer:
479.52 cm²Step-by-step explanation:
Semi-circle:
A = 1/2πr² = 1/2*3.14*6² = 56.52 cm²Trapezoid:
A = 1/2(a + b)h = 1/2 [(12 + 12) + (12 + 21)] (6) = 171 cm²Rectangle:
A = ab = 12*21 = 252 cm²Area of the shape:
56.52 + 171 + 252 = 479.52 cm²It's all in the picture & please help!
~Rules~
a. SHOW WORK
b. NO LINKS/FILES
c. NO SILLY ANSWERS!
I will give out BRAINLIEST!
~Hocus Pocus
Answer:
Step-by-step explanation:
hi!
area:
both 7 by 4 sides: (7*4)2=56
both 3 by 7 sides: (3*7)2=42
both 3 by 4 sides: (3*4)2=24
add em up=56+42+24=122
i hope this answered your question. let me know if i missed something and ill fix it!