get this right and you get brainliest
Answer:
2 1/3 planes
Step-by-step explanation:
3.5 lego planes / 60 minutes
So fraction =
3.5/60
In 40 minutes he will build x planes
So the fraction equation is:
3.5/60 = x/40
Solve:
Cross multiply =
140 = 60x
x = 2 1/3
2 1/3 planes
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-Chetan K
Find the perimeter (circumference) of the semicircular region. Round your
answer to the nearest hundredth.
9 m
Answer:
18m i thnk
Step-by-step explanation:
help!!
find the measure of arc AD
Step-by-step explanation:
11x-3=8x+15( inscribed angle on same arc are equal)
11x-8x=15+3
2x=18
x=9
now, angle ABD
11x-311×9-399-396°measure of arc AD= 96/2 arc is half of inscribed angle)
48 °stay safe healthy and happy...The measure of the arc of the circle AD = ( 0.7 )πr
What is Central Angle?The central angle is an angle with two arms and a vertex in the middle of a circle. The two arms of the circle's two radii intersect the circle's arc at two separate locations. It is an angle whose vertex is the center of a circle with the two radii lines as its arms, that intersect at two different points on the circle.
The central angle of a circle formula is as follows.
Central Angle = ( s x 360° ) / 2πr
where s is the length of the arc
r is the radius of the circle
Central Angle = 2 x Angle in other segment
Given data ,
Let the measure of the angle subtended by the arc be
The measure of ∠ABD = ( 11x - 3 )°
The measure of ∠ACD = ( 8x + 15 )°
And , the angle subtended by the same arc are same
So , ( 11x - 3 )° = ( 8x + 15 )°
On simplifying , we get
3x = 18
Divide by 3 on both sides , we get
x = 6
So , the measure of ∠ABD = 63°
Now , the measure of central angle = 2 x 63° = 126°
And , the length of the arc s = ( 0.35 ) x 2πr
Hence , the measure of arc AD = ( 0.7 )πr
To learn more about central angle click :
https://brainly.com/question/11877137
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A roller coaster car at an amusement park will seat 3 people. In how many different ways can Maryanne and Helen sit in the car, leaving one seat empty?
Write three different integer addition expressions that equal −5.
Given:
Three different integer addition expressions equal −5.
To find:
The three different integer addition expressions.
Solution:
We know that 0 is the identity element under addition. It means if we add 0 to a number we get the same number.
[tex](-5)+0=-5[/tex]
One expression is [tex](-5)+0[/tex].
The other expression are:
[tex](-6)+1=-5[/tex]
[tex](-7)+2=-5[/tex]
Therefore, the three different integer addition expressions that are equal to -5 are [tex](-5)+0,(-6)+1,(-7)+2[/tex].
Which type(s) of symmetry does the following object have? Select all that apply.
Answer:
vertical line of symmetry. if you split the shape in the middle, the two pieces would be the same. it also has rotational symmetry because if you rotate it, it would still look the same and be the same shape.
It does not have horizontal or diagonal symmetry because if you split it those ways, the two pieces made will be different. Because it has rotational and vertical symmetry, it does not have "no symmetry"
can someone plzz help me with these 2 questions. thanks!
9514 1404 393
Answer:
4. height: 5√3 cm; area: 25√3 cm²
5. 30√2 ft ≈ 42.43 ft
Step-by-step explanation:
4. The height of an equilateral triangle is (√3)/2 times the side length, so is ...
height = (√3)/2 × (10 cm) = 5√3 cm
The area is given by the formula ...
A = 1/2bh
A = 1/2(10 cm)(5√3 cm) = 25√3 cm²
__
5. The diagonal of a square is √2 times the side length, so the distance from 3rd to 1st base is ...
(30 ft)√2 ≈ 42.43 ft
__
The length of the diagonal of a square is something you should be familiar with. If you're not, you can figure the distance using the Pythagorean theorem.
d = √(30² +30²) = √1800 ≈ 42.43 . . . feet
What is the equation of the trigonometric graph.
Answer(s):
[tex]\displaystyle y = 4sin\:(x + \frac{\pi}{2}) - 1 \\ y = 4cos\:x - 1[/tex]
Explanation:
[tex]\displaystyle y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow -1 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{-\frac{\pi}{2}} \hookrightarrow \frac{-\frac{\pi}{2}}{1} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{2\pi} \hookrightarrow \frac{2}{1}\pi \\ Amplitude \hookrightarrow 4[/tex]
OR
[tex]\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow -1 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{2\pi} \hookrightarrow \frac{2}{1}\pi \\ Amplitude \hookrightarrow 4[/tex]
You will need the above information to help you interpret the graph. First off, keep in mind that although this looks EXACTLY like the cosine graph, if you plan on writing your equation as a function of sine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of [tex]\displaystyle y = 4sin\:x - 1,[/tex] in which you need to replase "cosine" with "sine", then figure out the appropriate C-term that will make the graph horisontally shift and map onto the cosine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the sine graph [photograph on the right] is shifted [tex]\displaystyle \frac{\pi}{2}\:unit[/tex] to the right, which means that in order to match the cosine graph [photograph on the left], we need to shift the graph BACK [tex]\displaystyle \frac{\pi}{2}\:unit,[/tex] which means the C-term will be negative, and perfourming your calculations, you will arrive at [tex]\displaystyle \boxed{-\frac{\pi}{2}} = \frac{-\frac{\pi}{2}}{1}.[/tex] So, the sine graph of the cosine graph, accourding to the horisontal shift, is [tex]\displaystyle y = 4sin\:(x + \frac{\pi}{2}) - 1.[/tex] Now, with all that being said, in this case, sinse you ONLY have a graph to wourk with, you MUST figure the period out by using wavelengths. So, looking at where the graph hits [tex]\displaystyle [0, 3],[/tex] from there to [tex]\displaystyle [2\pi, 3],[/tex] they are obviously [tex]\displaystyle 2\pi\:units[/tex] apart, telling you that the period of the graph is [tex]\displaystyle 2\pi.[/tex] Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at [tex]\displaystyle y = -1,[/tex] in which each crest is extended four units beyond the midline, hence, your amplitude. So, no matter how far the graph shifts horisontally, the midline will ALWAYS follow.
I am delighted to assist you at any time.
I WILL MARK BRAINLIST TO WHO IS RIGHT PLS HELP ME!.
Answer:
Your answer would be 1 x10^6.
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the.
The sign of the exponent will depend on the direction you are moving the decimal.
Hope that makes sense.
Help
These are inscribed angles I think
Answer:
13) 142° (intercepted arc is twice the inscribed angle)
14) 23° (inscribed angles is half of the intercepted arc)
15) Since RT is a diameter and arcRS = 46°, then arcST = 180° - 46 = 134°
16) Using the result of #13, arcRQ = 180° - 142° = 38°
list the multiple of 10 less than 99
10,20,30,40,50,60,70,80,90
Select all point that lie on the circle
Answer:
jjjokiioololll.hgyuhhkopohjo
[tex]3x - 2y = 43x + 2y = 8[/tex]
3x - 2y = 8 +
===》 46x = 16
43x + 2y = 8
x = 16/46
x = 8/23
______________________________
3x - 2y = 8
3(8/23) - 2y = 8
24/23 - 2y = 8
2y = 24/23 - 8
y = 12/23 - 4
y = 12/23 - 92/23
y = - 80/23
10pts.
A pair of dice is cast. What is the probability the sum is less than 9, if it is known that one number is a 6?
Will give Braniliest
Answer:
Maybe I think it is 4/11............
The center of a circle is located at C(0, -8). Its area is 49*pi.
Answer:
x² + (y + 8)² = 49
Step-by-step explanation:
You didn't ask a question
Did you want the equation for the circle?
--------------------------
Standard form is
(x - h)² + (y - k)² = r²
using (h, k) = (0, -8)
x² + (y + 8)² = r²
use the area to find r²
a = πr²
49π = πr²
Divide both sides by π
49 = r²
Now the equation can be completed
x² + (y + 8)² = 49
yo need help on this please
Answer:
wnnsnsmamamamamas
Step-by-step explanation:
jsmallaam By sna
Answer:
I hope you understand what I wrote
Qadir has $400.56 in his Friendly Debit card checking account. He uses the card to pay $450.50 to fix his furnace. Four days later, he deposits $150.00 into his checking account. How much money will Qadir have left in his account when the money is taken out to pay for the repair?
Add 150 to what he has in his account, then subtract the cost to fix the furnace.
400.56 + 150 = 550.56
550.56 - 450.50 = 100.06
He will have $100.06 in his account.
Leah has $460 in her checking account. She writes a check for $530, makes a deposit of $75, and then writes a check for $90. What is the balance in the account?
If $8259 principal is invested in a savings account that pays 5.25% interest compounded continuously how much money will be in the account after 10 years?
A(10) = $
Answer:
A(10) = $13,961.50
Step-by-step explanation:
First, convert R as a percent to r as a decimal
r = R/100
r = 5.25/100
r = 0.0525 rate per year,
Then solve the equation for A
The formula is given as:
A = Pe^rt
P = 8259
r = 0.0525
t = 10 years.
Hence,
A = 8,259.00 × e^(0.0525×10)
A = $13,961.50
Therefore, the money that will be in the account after 10 years is $13,961.50
14 POINTS AND BRAINLIEST EASY QUESTION LOOK AT IMAGES BELOW. THANKS!
A. You work 30 hours a week. You need to earn $234 to cover your weekly expenses. Your dog-walking job pays $8 per hour and your job at the car wash pays $7.5 an hour. Write a system of linear equations to represent the situation.
B. Solve the system in A.
C. Explain what the answers in part B represent.
Answer:
Here's a pdf that has questions and answers on it 7.6 Applications answer key.pdf
Step-by-step explanation:
Can someone plz help me if u can’t see zoom in plz help me
Answer:
City 1 and City 2
Step-by-step explanation:
The water is moving down stream, moving from City 1-2-3-4 in that order.
if water was taken a the X mark, the pollutants would have to have come from the cities above where the sample was taken.
Hope this helps!
Answer:
City 1 and 2.
Step-by-step explanation:
To be completely honest I have never done a problem like this before but I am fairly confident with my answer. As it can't be city 3 or 4 as they are after the polluted water sample was taken and the river is flowing down. The only two options it could be is city 1 and 2.
I hope this helps!
PLEASE HELP FOR A HUGE GRADE
what is the of cube of 13824
Answer:
Step-by-step explanation:
Find the measure of ZC. Write your answer as a decimal.
Answer:
I believe this answer would be m<C = 86.5 degrees
A store hands out yogurt samples. The table shows what they have given out.
Peach
Vanilla
Strawberry
16
Regular
Low-Fat
19
30
48
32
55
Answer:
30/200 or 15%
Step-by-step explanation:
ok so I gotta find the total which is 16+19+30+48+32+55=200
so it's 30/200 or 15%
What’s the value of x
Answer:
x= 20
Step-by-step explanation: 20+5 is 25 degrees 20 times 7 is 140-5 is 135 degrees +20 degrees equals 180 degrees
PLEASE HELP IF POSSIBLE :)
Answer:
180
Step-by-step explanation:
[tex] sa = 2( \frac{1}{2} )(6)(4) + 10(5 + 5 + 6)[/tex]
[tex] = 24 + 10(16)[/tex]
= [tex]24 + 160[/tex]
[tex]180[/tex]
..................
hope it helps...
have a great day! ! !
Answer: total surface area would be 28.3310501 cm2 or 28.3 cm2 rounded to the nearest tenth
4. Given point A (3, 8) and point B (-5, 1). Find the following:
a.) The coordinates of the midpoint of segment AB. Write your answer in this form: (x, y) (7 points)
b.) Using the distance formula, find the length of segment AB. Round to the nearest hundredth. (7 points)
c.) Find the slope of segment AB. (if your answer is a fraction, use the "/" symbol) (7 points)
Answer:
a) M(-1, 4.5)
b) 10.63
c) 7/8
Step-by-step explanation:
a)
x = (3 + (-5))/2 = -1
y = (8 + 1)/2 = 4.5
M(-1, 4.5)
b) d = sqrt[(x1-x2)^2 + (y1-y2)^2] = sqrt(113) = 10.63
c) m = (y2-y1)/(x2-x1) = 7/8
PLEASE ASSIST ME WITH GEOMETRY PROBLEM!!
Answer:
Surface Area = 100.531
Volume = 75.398
Step-by-step explanation:
(S.A)
Formula for the S.A of a right circular cylinder:
2πr² + 2πr(h)
We know that in the given figure,
height (h) = 6cm
radius (r) = 2 cm
So now we can substitute it in for the equation above:
=> 2π(2)² + 2π(2)(6)
=> 2π(4) + 2π(12)
=> 25.133 + 75.398
=> 100.531
(V)
The formula of the volume of a right circular cylinder: πr²h
=> π(2)²(6)
=> π(4)(6)
=> 75.398
Hope this helps!
Answer:
surface area = 100.53 volume is 75.4
Step-by-step explanation:
surface area of a cylinder is [tex]2\pi r^{2} +2\pi rh[/tex] you need to know the radius and height to find the volume ad surface area of a cylinder