Answer:
Solve for x:
56 x^2 + 4 = 77
Subtract 4 from both sides:
56 x^2 = 73
Divide both sides by 56:
x^2 = 73/56
Take the square root of both sides:
Answer: |
| x = sqrt(73/14)/2 or x = -sqrt(73/14)/2
Heather is flying a kite at the park. The string makes an angle of 53° with the level ground. The kite is 28 meters above the ground. How long is the string from heather.To the kite?
Answer:
35.06 meters
Step-by-step explanation:
This represents a right angled triangle.
The height of the kite above the ground represents the opposite side while the length of the string of the heather of the kite is the hypotenuse.
We need to find the hypotenuse, h.
We can use the sine part of the trigonometric function SOHCAHTOA:
sin(Ф) = opp / hyp
where opp is the side opposite the angle
hyp is the hypotenuse
=> sin(53) = 28 / h
h = 28 / sin(53)
h = 35.06 meters
The length of the string from the heather to the kite is 35.06 meters
A spinner with 5 equal sections labeled 1-5 is spun 50 times. The results are shown in the table. What is the experimental probability of spinning a 1?
Answer:
10
Step-by-step explanation:
Spinner divided to 5 equal parts
It is Numbered from (1 to 5): 1, 2, 3, 4, 5
Theoretical probability of spinning 1 = 1/5
Number of times it is spun = 50
Let Experimental probability of spinning 1 = x
1/5 = x/50
5x = 50
x = 50/5
x = 10
Experimental probability of spinning 1 = 10
Answer:
10
Step-by-step explanation:
How many Positive Integers are there between 20 to 100 exclusively?
Answer:
198
Step-by-step explanation:
between 20 to 100 MEANS THAT WE EXCLUDE 20 AND 100
INTEGER IS POSITIVE AND NEGATIVE NUMBER WHICH IS 21 TO 199 FOR THIS QN WHICH IS 198 IN NUMBER
examples of spiral motion
Answer:Examples of Spiral Movement are:
Step-by-step explanation:
1)Cyclone
2)Spiral fern
The examples of a spiral motion include cyclone, motion of electron in uniform magnetic field.
What is spiral motion?The path of a point in a plane moving around a central point while continuously receding from or approaching it.
Given is a spiral motion.
The examples of a spiral motion include cyclone, motion of electron in uniform magnetic field.
Therefore, the examples of a spiral motion include cyclone, motion of electron in uniform magnetic field.
To solve more questions on spiral motion, visit the link below -
https://brainly.com/question/11020427
#SPJ2
find the value of x
m<2 = 9x - 1
Answer: x=9
Step-by-step explanation:
The bottom triangle that has a 40° is an isosceles triangle, therefore the other angle at the bottom right is also 40°. This leaves the top angle to be 100°.
180=40+40+x
180=80+x
x=100
Now, to find ∠2, you can tell it is a supplementary angle. Therefore, the 2 angles add up to 180°
180-100=∠2
80°=∠2
The problem states that ∠2 is 9x-1. We know that ∠2 is 80°. We can solve for x.
80=9x-1
81=9x
x=9
Find the slope of the line going through the points (0,6) and (-3,9)
Answer:
The slope of the line is 5.
The point slope form of the line is y=5x+6.
Step-by-step explanation:
We can find the slope using this formula: [tex]\frac{y_{2} }{x_{2} } -\frac{y_{1} }{x_{1} }[/tex]
[tex]\frac{6}{0} -\frac{9}{-3} =[/tex]
[tex]\frac{6}{0} -(-\frac{9}{3} )=[/tex]
[tex]\frac{6}{0} +\frac{9}{3} =[/tex]
[tex]\frac{15}{3} =[/tex]
5
The slope of the line is 5.
To find point slope form, we use the equation y=mx+b where m is the slope and b is the y-intercept.
The y-intercept of this slope is 6 and the slope is 5 so we get, y=5x+6
What is the relationship between AXY and YXB?
All segments that appear straight are straight.
Choose 1 answer:
Complementary angles
* Supplementary angles
None of the above
Answer:
Angles AXY and YXB are complementary angles because they add up to 90 degrees, which can be inferred by looking at angle BXC.
solve these magic squares using positive and negative numbers equal and he shown number. use 0 if u have to as well
Answer:
-1 |4 |-7|6
-6|5 |0 |3
8| -5|2 |-3
1|-2 |7 | -4
Hope this helps
Step-by-step explanation:
What is the amplitude and period of f(t)=2.5tan(t)
A. amplitude: 2.5; period: π
B. amplitude: 2.5; period: 2π
C. amplitude: none; period: 2π
D. amplitude: none; period: π
I selected A, and I do not know why I got it wrong.
Answer:
D
Step-by-step explanation:
Tan graphs are a bit different to sin and cos graphs: they don't have an amplitude.
If you look at a tan graph, it exists between assymptotes and has no maximum or minimum value. In this case, the 2.5 acts similar to a dilation factor and makes the graph skinnier or wider.
You were right about the period: it is just pi, not 2 pi like sin and cos. Again, if you look at the graph, the assymptotes occur every period, which is only pi.
Hope that helped : )
write these numbers in standard form: a)200,000 b)80,000 c)900,000,000 d)1,000,000,000
Step-by-step explanation:
a) 200,000 equals 2 times 10^5
b) 80,000 equals 8 times 10^4
c) 900,000,000 equals 9 times 10^8
d) 1,000,000,000 equals 1 times 10^9
Please help me with this question please help
Answer:
hope this helps you
El área de un trapecio es 120 m², la altura 8 m, y la base menor mide 10 m. ¿Cuánto mide la otra base?
Answer:
El soluccion es 20m.
Step-by-step explanation:
Para encontrar la base major necesitas saber el area, la altura, y el base menor.
Puedes usar la formula para la area de un trapecio: [tex]A=\frac{a+b}{2} *h[/tex]
Pero se puede cambiar por lo que es en términos de encontrar la base más grande:
[tex]b=2\frac{A}{h} -a\\A=Area\\h=altura\\a=base-menor\\b=base-major[/tex]
Y si conectas las variables que conoces, siempre podrás encontrar la que no tienes
[tex]b=2\frac{120}{8} -10\\b=20[/tex]
Solve for c.
3 − 7c − 20c = 7(–7c − 19) + 14c
c =
Answer:
[tex] \boxed{c = -17} [/tex]
Step-by-step explanation:
[tex] = > 3 - 7c - 20c = 7( - 7c - 19) + 14c \\ \\ = > 3 - 27c = ( - 7c \times 7) - (7 \times 19) + 14c \\ \\ = > 3 - 27c = - 49c - 133 + 14c \\ \\ = > 3 - 27c = - 35c - 133 \\ \\ = > 3 - 27c + 35c = - 133 \\ \\ = > 3 + 8c = - 133 \\ \\ = > 8c = - 133 - 3 \\ \\ = > 8c = - 136 \\ \\ = > c = - \frac{136}{8} \\ \\ = > c = - 17[/tex]
Answer:
c = -17
Step-by-step explanation:
→Distribute the 7 to (-7c - 19):
3 - 7c - 20c = -49c - 133 + 14c
→Add like terms (-7c and -20c, -49c and 14c):
3 - 27c = -35c - 133
→Add 35c to both sides:
3 + 8c = -133
→Subtract 3 from both sides:
8c = -136
→Divide both sides by 8:
c = -17
How many minutes does it take angel to run on kilometer?
Answer:
We can see from the table that 1 km is exactly half way between 2 and 3 laps. So it will take 2.5 laps to run 1 km. So it takes Angel 5 minutes to run 1 km.
Step-by-step explanation:
HELPPPPP ITS ABOUT SCATTER PLOTSSSS Helpppppp
Answer:
36 gallons
Step-by-step explanation:
y = 4/5x
Let x = 45 minutes
y = 4/5 (45)
y = 36 gallons
Answer:
B. 36
Step-by-step explanation:
Let x = 45
y = 4/5 * (45)
= 4 * 9
= 36
Hope this helps!
What is the inverse of f(x) =1/3x +3
Answer:
h(x) = 3x - 6
Step-by-step explanation:
To find the inverse of a function, you have to switch the x- and y-values.
y = 1/3x + 2
x = 1/3y + 2
(x) - 2 = (1/3y + 2) - 2
x - 2 = 1/3y
(x - 2)(3) = (1/3y)(3)
3x - 6 = y
y = 3x - 6
Please answer CORRECTLY !!!!! Will mark brainliest !!!!!!!!!!
Answer:
5x² + 10
Step-by-step explanation:
5(x² + 2)
= 5x² + 10
After being exposed to an electromagnet shrinking machine, Joe’s height decreased by 120 cm over 1.5 seconds. His height decreased by the same amount each second. How much did Joe’s height change each second?
Answer:
-80cm/sec
Step-by-step explanation:
It is given that Joe was being exposed to an electro magnet shrinking machine.
Because of this his height started decreasing.
The decrease was at a constant rate per second is given.
In 1.5 seconds, the height decreased by 120 cm.
Since given as constant decrease per second we find that this is direct variation of height over second.
variation per second =
Change in each second would be with negative sign indicating decrease
Answer: -80cm
Step-by-step explanation: khan academy
when graphed which equation will yield the same maximum value as the graph of y = -3x^2 + 6x + 9 ?
a) y = -3(x - 1)^2+12
b) y = -3(x + 1) ^2 - 12
c) y = 3(x - 1)^2 -12
d) y = 3(x + 1)^2 + 12
Answer:
A
Step-by-step explanation:
Graphed below are all 5 graphs. The one in red is the original, but it cannot be seen because it is entirely concealed by the blue graph, or graph A. Since they are the same graph, they must share all characteristics, including a maximum value. Therefore, the correct answer is choice A. Hope this helps!
Answer:
-3(x - 1)^2+12
Step-by-step explanation:
Have a good day :)
Helppppppp Asappppppp
Answer:
All of them
Step-by-step explanation:
2/2 is 1, and if the shaded part is 2/2, everything would be shaded.
Answer:
A, B, C, D
Step-by-step explanation:
2/2 is equivilant to 1. This means that to be equvilant to 2/2 the entire diagram would have to be shaded in.
Hope this helps! (Please consider giving brainliest)
1.-si el area de un rectangulo es de 144 metros cuadrados y su altura de 8 metros ¿ cual es el valor de su base?
Formula:
incognita despejada:
valor de la incognita:
2.- considerando a π como 3.14 ¿cual es el diametro de un circulo que tiene una circunferencia de 62.8 cm?
Step-by-step explanation:
FÓRMULA:
[tex]144 m^{2}[/tex] = b(8 m)
SE DESPEJA
b = [tex]144 m^{2}[/tex]/8 m = 18 m
I NEED HELP PLS PLS PLS
MEAN OR MEDIAN
IQR OR MAD
Answer:
mean and range
Step-by-step explanation:
plz help will give brainiest cuz like u r duh lol!
Answer:
C
Step-by-step explanation:
-4d is greater or equal to -12
d is less than or equal to 3
Answer:
c
Step-by-step explanation:
c is the answer
Noah's water bottle contains more than 1 quart of water but less than LaTeX: 1\frac{1}{2}1 1 2 quarts. Let w be the amount of water in Noah's bottle, in quarts. Select all the true statements.
Group of answer choices
Answer:
What are the answer choices?
Step-by-step explanation:
Answer:
(1.) w could be 3/4
(2.) w could be 1
(7.) w >1.5
Step-by-step explanation:
The endpoints of a segment are (4,2) and (7,4). What are the endpoints of the segment after it has been translated 3 units to the right? A. (1,2), (4,4) B. (4,2), (10,4) C. (4,5), (7,7) D. (7,2), (10,4)
Answer:
The endpoints of the segment are (7,2) and (10,4).
Step-by-step explanation:
Since it is being translated to the right, you add 3 to both x values.
Answer:
DDDD
Step-by-step explanation:
got it right on edge <3
PICKING BRAINLIEST!!! Please select the word from the list that best fits the definition a device used to find latitude
Answer:
it’s astrolabe
Step-by-step explanation:
i need the answer pls and ty
Answer:
B
Step-by-step explanation:
45-45-90 triangles have the ratio 1:1:sqrt(2) on their sides
20sqrt(2):20sqrt(2):20(2)/40 satisfies this ratio
Can someone help me on this
Answer:
The new area is 20.75 square
Step-by-step explanation:
complete the table of values for y=2x+3
[tex]\left \{ {{x=-2 -1 0 1 2 3} \atop {y= 1 7}} \right.[/tex]
[tex]y = - 2047 \\ x = - 10125[/tex]
Step-by-step explanation:
[tex]y = 2x + 3 \\ x = - 2 - 10123 \\ x = - 10125 \\ y = 2( - 10125) + 3 \\ y = - 20520 + 3 \\ y = - 20247[/tex]
Marie wants to know the most popular car for parents. She plans to survey the people shopping at the used car lot from 10 AM to 11 PM. Which statement below best reflects Marie’s plan?
A) Marie’s sample is valid
B) Marie should also survey people entering the grocery stores.
C) Marie’s sample is biased
D) Marie should make sure she surveys both men and women.
Answer:
This is biased.
Step-by-step explanation:
A used car lot tends to have cheaper cars, so people who can't afford brand new cars come here to buy used cars.
