Answer:
Distance traveled / time taken
Step-by-step explanation:
Given :
The distance traveled by a car and the time taken to cover the distance
Take :
Distance = d
Time taken to cover distance = t
The rate the car travels is related by the equation :
Speed or rate = Distance traveled / time taken
Five students are competing in a spelling bee for first second, and third places. How many different outcomes are possible?
Answer:
625
Step-by-step explanation:
This is a reoccurring permutation
so it is 5^3
Find the length of the third side. If necessary, write in simplest radical form.
10
5
Answer:
x= [tex]5\sqrt{5}[/tex]
Step-by-step explanation:
To solve this problem we first observe the Pythagoras equation. If a= 10 and b =5 are the lengths of the legs of a right triangle and c= x is the length of the hypotenuse, then the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse.
This relationship is represented by the formula:
[tex]a^{2} + b^{2} = c^{2}[/tex] =>[tex]10^2 +5 ^2 = x^2[/tex]
=> 100 + 25 = [tex]x^2[/tex]
=> [tex]\sqrt{125}[/tex] = x => [tex]\sqrt{25} \sqrt{5}[/tex] = x
=> x= 5[tex]\sqrt{5}[/tex]
The perimeter of a triangle is not greater than 12 and the lengths of sides are natural numbers.
How many such kinds of triangles is it possible? Find the probability of randomly chosen triangle is isosceles but not equilateral.
Answer:
3 triangles
Step-by-step explanation:
Perimeter of triangle = a + b + c
Given that :
P = 12
and a, b, c are natural numbers
Let :
Side A = a
Side B = b
Side C = 12 - (a + b)
Side A + side B > side C - - - (condition 1)
a + b > 12 - (a + b)
a + b > 12 - a - b
a + a + b + b > 12
2a + 2b > 12
2(a + b) > 12
a + b > 6
Side A - side B < side C
a - b < 12 - (a + b)
a - b + a + b < 12
2a < 12
a < 6
b < 6 (arbitrary point)
Going by the Constraint above :
The only three possibilities are :
(2, 5, 5)
(3, 4, 5)
(4, 4, 4)
Total number of triangle = 3
Equilateral triangle (all 3 sides equal) = (4, 4, 4) = 1
Isosceles triangle (only 2 sides equal) = (2, 5, 5) = 1
What type of triangle is shown here 17 cm 10cm 17 cm. The triangle looks like this: <|
Answer:
Isosceles Triangle
Step-by-step explanation:
Two of the sides are the same, meaning by definition it is an isosceles triangle.
Answer:
isocelless traingle
Step-by-step explanation:
hope it helps
1
What is the base area of the cone?
O 15 m2
O 25 m2
O 45 m2
5 ml
1
1
O 125 m2
3
V= 75 m
Answer:
[tex]volume = \frac{1}{3} \pi {r}^{2} h \\ 75 = \frac{1}{3} \times 3.146 \times {r}^{2} \times 5 \\ {r }^{2} = \frac{75 \times 3}{3.146 \times 5} \\ r = \sqrt{14.3039} \\ r = 3.782 \: m \\ base \: area = \pi {r}^{2} \\ = 3.146 \times {(3.782)}^{2} \\ base \: area = 45 \: {m}^{2} [/tex]
Answer: The answer is C. 45 i have proof it is this for anyone who needs this,
Step-by-step explanation: hope this helps everyone!
Please help
11.5 gal
= qt
Answer:
46
Step-by-step explanation:
1 gallon is 4 quarts so you would do 11x4=44 and .05x4=2
44+2=46
factor m^4 + 9m^2 + 20 completely
Answer:
Step-by-step explanation:
m^2(m^2+9)+20
What is the equation of the line?
Answer:
y = 3
Step-by-step explanation:
How many different 5-digit numbers can you write using each of the digits 0, 1, 2, 3, 4 exactly once?
Answer:
96
Step-by-step explanation:
To get 5 digit numbers using the digits 0,1,2,3,4 exactly once = 4*4*3*2*1 = 96.
Step 1:
1st digit can be 1, 2,3,4 ( it can't be 0) so there are 4 choices.
Step 2:
2nd digit = 4 choices.
Step 3:
3rd digit = 3 choices
Step 4:
4th digit = 2 choices
Step 5:
5th digit = 1 choice .
So the number of different 5 digit number is 4*4*3*2*1 = 96
help please, what is the answer?
Answer:
sum of all angles in a triangle = 180
111 + 42 + x = 180
153 + x = 180
x= 180-153
x=27
Step-by-step explanation:
Answer:
27°
Step-by-step explanation:
All triangles are 180° therefore, you can add 111° and 42° then subtract that from 180°
The time it takes to travel a fixed distance varies inversely with the speed
traveled. If it takes Pam 40 minutes to bike to her fishing spot at 9 miles per
hour, how long will it take her if she rides at 12 miles per hour?
O
30 mins
0 53 mins
22.5 mins
O 2.7 hours
Answer:
53 mins
Step-by-step explanation:
*not drawn to scale
From her house, Jill rode her bike 5 km east, then 6 km south, and then 3 km east.
Measured using a single straight line, how far is Jill from her house?
A. 5 km
B. 8 km
C. 10 km
D. 14 km
Answer:
14
Step-by-step explanation:
Consider a circle centered at C(0,0). If the point P(3,5) lies on the circle, then which of the following points also lies on the circle?
A. (-2,6)
B. (6,-[tex]\sqrt{5}[/tex])
C. (1,[tex]\sqrt{33}[/tex])
D. (-2[tex]\sqrt{2}[/tex],4)
Answer:
C
Step-by-step explanation:
First find the equation of the circle
the general formula for a circle (x-h)² + (y-k)² = r² where (h=0, k=0) are the coordinates of the center and r is the radius that we do not know
the distance between the center (0, 0) and the point (3,5) is the radius
distance formula d² = (x2-x1)² +(y2-y1)² where (x1=0,y1=0) and (x2=3, y2=5)
d² = (3-0)² + (5-0)² = 3² +5² = 9+ 25 = 34 =r²
(x-0)² + (y-0)² = 34 ; x²+y² =34 is the equation of the circle
Second check if any of the points are on the circle by substituting x and y with de given coordinates.
A. for (-2, 6) we have (-2)²+6² =34 so 4+36 =34 false
B. for (6, -√5) we have 6²+(-√5)² =34 so 36+5=34 false
C. for (1, √33) we have 1²+(√33)² =34 so 1+33 =34 true
D. for (-2√2, 4) we have (-2√2)²+4² =34 so 8+16=34 false
classify the triangle with the given side lengths as acute, right, obtuse, or not a triangle:
9,15,19 NOT A RIGHT TRIANGLE THANKS FOR THE HELP! NO SPAMS OR LINKS PLEASE
Answer:
It is not a right triangles because 15^2 + 13^2 is NOT EQUAL to 19^2
let x, y, and z be the angles inside the triangle.
Law of cosines says:
19^2 = 13^2 + 15^2 - 2(13)(15)cos x
361 = 169 + 225 - 390 cos x
-33 = -390 cos x
-33/-390 = cos x
11/130 = cos x
x = inverse cosine (11/130)
= 85.14609471338569.....
Per law of sines:
sin x/19 = sin y / 13
(13/19)sinx = sin y
inverse_sine ( (13/19) sin x) = y
y = 42.9810733896016548....
Per law of sines
sin x/19 = sin z / 15
z = inverse_sine( (15/19) sin x)
= 51.8728352950227805....
So it is an acute triangle and yes, these angles add up to 180
Answer:
acute
Step-by-step explanation:
Solve for x and y
6(ax + by) = 3a + 2b ; 6(bx-ay) = 3b - 2a
6×ax+6×by =6ax+6by =3a+2b,6×bx-6×ay=3b-2a=6bx-3a+2b
Help fast pls help pls pls pls pls pls pls pls no links no files or i will report u pls help me
i don't have much time
the quetion is bellow
what is the x for this problem??
Answer:
Let's just find the value of the unknown degree next to 35 degrees.
180 - 35 = 145 degrees
Since 145 degrees is the unknown degree next to 35 degrees, it is vertical to the x it will be the same therefore your answer is 145 degrees.
A triangle has
number of altitudes/heights.
Answer:
the answer is altitudes.
Step-by-step explanation:
i am not much sure of that.
Answer:
Triangle :
Step-by-step explanation:
The altitude of triangles,
Three altitudes :
Every triangle has three bases (any of its sides) and three altitudes (heights). Every altitude is the perpendicular segment from a vertex to its opposite side (or the extension of the opposite side).
The heights. of triangle,
The three heights of a triangle :
Triangles each have three heights, each related to a separate base. Regardless of having up to three different heights, one triangle will always have only one measure of area. In some triangles, like right triangles, isosceles and equilateral triangles,
What should you do first in solving the quadratic equation?
x² + 18x + 81 = 25
Answer:
x= -4,-14
Step-by-step explanation:
Try first to solve the equation by factoring. Be sure that your equation is in standard form before you start your factoring attempt.
i dont understand
help please!!!
.) From the time a small airplane is 240 feet high and 5,200 ground feet from its landing runway, the plane descends in a straight line to the runway. Determine the planes angle of descent. Draw a diagram that describes the scenario.
Answer:
87.357
Step-by-step explanation:
use TOA to solve for the missing angle
let x= angle
tan(x)=5200/240
x=87.357
hi please help me look below
Answer:
9.64797292×10^28
Step-by-step explanation:
does any one nows how to solve this
ILL GIVE BRAINLIEST ASAP AND PLEASE DONT PUT A LINK!!!
Answer:
A
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
the graph shows that it's greater than or equal to and the arrow going up represents at least 50
Find the measure of the are or central angle indicated. Assume that lines which appear to be
diameters are actual diameters.
(I need help solving because I don’t understand please go step by step for this equation#1)
9514 1404 393
Answer:
?° = 153°
Step-by-step explanation:
The measure of an arc is the same as the measure of the central angle it subtends. The arc is marked 153°. The central angle (?°) has that same measure.
?° = 153°
[tex]\frac{3}{4}x-1\frac{5}{8}-2\frac{3}{4}[/tex]
The Snake river runs through the state of Idaho. It also runs through the city of
Idaho Falls, Idaho. I saw another river once. Many people enjoy the river for its beauty and recreation.
Which sentence doesn’t belong to the main idea?
1. The Snake river runs through the State of Idaho.
2. It also runs through the city of Idaho Falls, Idaho.
3. I saw another river once.
4. Many people enjoy the river for its beauty and recreation.
More help pls
Answer:
4. Many people enjoy the river for it's beauty and recreation.
Step-by-step explanation:
this sentence doesn't specify the river if it's snake or the other one
Select the correct answer.
Which statement is true about this equation?
-9(x+ 3) + 12 = -3(2x + 5) - 3x
OA
The equation has one solution, x= 1.
OB.
The equation has one solution, x= 0.
O C.
The equation has no solution.
OD. The equation has infinitely many solutions.
ANSWER NOW PLEASE AND PLEASE GIVE ME THE RIGHT ANSWER 35 points
Find the difference. Express the answer in scientific notation.
Va
(8.64 x 1020)- (7 83x 1020)
O 8.1x 10
O 0.81 x 1020
O 8.1 x 1021
O 0.81x1040
Both values have the same exponent ( they are both 10^20) so first subtract the numbers:
8.64 - 7.83 = 0.81
You would now have 0.81 x 10 ^20
But to be in scientific notation you need a number to the left of the decimal.
0.81 would become 8.1 and because you move the decimal 1 place to the left, you would subtract 1 from the original exponent so 10 ^20 would become 10 ^19
The answer is 8.1 x 10 ^ 19
Answer:
B = 0.81 x 10^ 20
Step-by-step explanation:
=(8.64 x 10^ 20)- (7 83x 10^20)
=8.1 x 10^19
which is also written as
= 0.81x 10^20
PLS IS NEEDED PLS HELP!!
Answer: 19°
Step-by-step explanation: 90+71= 161
180-161= 19
(correct me if i’m wrong):)