Answer: [tex]1200 m[/tex]
[tex]75\ m/min[/tex]
Step-by-step explanation:
Given
Alex Jogged 3 rounds of 400 m track
It took 16 min to Jog 3 rounds
(a) Total distance Alex had Jogged
[tex]\Rightarrow 3\times 400=1200\ m[/tex]
(b) Average speed is the total distance by the total time
[tex]\Rightarrow \dfrac{1200}{16}=75\ m/min[/tex]
please help me out, im taking a test. ill give brainliest
Answer: you are cheating :(?
So I won't help u sorry
Step-by-step explanation:
How to simplify -5 1/4-(-7 1/2
Answer:
Exact Form:
9/4
Decimal Form:
2.25
Mixed Number Form:
2 1/4
Step-by-step explanation:
How do I answer this and I need explanation pls
Answer:
65 degrees
Step-by-step explanation:
1) Find the value of x
The sum of all the interior angles of a triangle is always 180 degrees. Knowing this, we can construct the following equation:
[tex](2x-5)+(115-x)+x=180[/tex]
Open up the parentheses
[tex]2x-5+115-x+x=180[/tex]
The two x's cancel out
[tex]2x-5+115=180\\2x+110=180[/tex]
Subtract 110 from both sides
[tex]2x+110-110=180-110\\2x=70[/tex]
Divide both sides by 2
[tex]2x/2=70/2\\x=35[/tex]
Therefore, x is equal to 35.
2) Find the value of <C
[tex]C=2x-5[/tex]
Plug 35 into the equation as x
[tex]C=2(35)-5\\C=70-5\\C=65[/tex]
Therefore, the value of angle C is 65 degrees.
I hope this helps!
In a random sample of 8 residents of the state of Montana, the mean waste recycled per person per day was 3.0 pounds with a standard deviation of 0.23 pounds. Determine the 99% confidence interval for the mean waste recycled per person per day for the population of Montana. Assume the population is approximately normal. Step 1 of 2: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.
Answer:
at 99%, Confidence interval is ( 2.716, 3.285 )
( 2.716 < μ < 3.285 )
Step-by-step explanation:
Given the data in the question;
sample size n = 8
mean x' = 3.0
standard deviation σ = 0.23
To calculate the confidence interval, we use the following expression;
x' ± [tex]t_{\alpha /2, df[/tex]( σ/√n) ------- let this be equation
now, at 99% confidence interval;
∝ = 1 - 99% = 1 - 0.99 = 0.01
degree of freedom df = n - 1 = 8 - 1 = 7
hence t-critical value = 3.499
in equation 1, we substitute in our values;
⇒ 3.0 ± 3.499( 0.23/√8 )
⇒ 3.0 ± 0.2845
⇒ 3.0 - 0.2845, 3.0 + 0.2845
⇒ ( 2.7155, 3.2845 )
Therefore at 99%, Confidence interval is ( 2.716, 3.285 )
( 2.716 < μ < 3.285 )
The slopes of perpendicular lines are
A. negative reciprocals
B. opposites
C. reciprocals
O D. identical
Is urgent no links
Answer:
A. Negative reciprocals
I NOW HAVE 690 PTS ALSO PLEASE HELP WITH MY MOST RECENT QUESTION
Answer:
Okay
Step-by-step explanation:
I'll see if I know the answer
Angles of Elevation and Depression
Acellus
Find the distance from point B to point C.
Enter as a decimal rounded to the nearest tenth.
58
6 mi
B
с
BC = [?] mi
Enter
Answer:
Distance between B and C is 9.6 miles.
Step-by-step explanation:
By applying tangent rule in the given right triangle ABC,
tan(58°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{BC}{AB}[/tex]
= [tex]\frac{BC}{6}[/tex]
1.60 = [tex]\frac{BC}{6}[/tex]
BC = 9.6 mi
Therefore, Distance between B and C is 9.6 miles.
Answer: 9.6
Step-by-step explanation:
what is order of operations and why is it important
Answer:
PEMDAS
Step-by-step explanation:
The order of operations is the order in which you solve an equation to find the correct answer. This is very important because randomly solving parts of an equation without using the order of operations will result in the wrong answer. The order of operations is PEMDAS which stands for: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
Example:
[tex](2*2)^{2}+6/3-1[/tex]
Using PEMDAS to solve this equation we get 17 as our answer. However, if we solve it in order of how it appears we end up with 19/3 or 6.33, which is a very different answer.
Help extra points and mark brainlist
Answer:
Median is 7
Step-by-step explanation:
Give me brainllest
What is the area of this figure?
Answer:
342 sq miles
Step-by-step explanation:
separated figure into 4 vertical pieces with the following dimensions:
5x31 rectangle: A = 155
4x13 rectangle: A = 52
3x13 rectangle: A = 39
trapezoid (h = 8; bases of 11 and 13): A = 96
Find the equation of the line that passes through the points (3,-4) and (3,
8).
Answer:
This is not a function, so we can not find the equation of this line.
Step-by-step explanation:
The two points form equation of a line is given by:
[tex]y-y_{1}=m(x-x_{1})[/tex]
Where:
y(1) is the y value of the first pointx(1) is the x value of the first pointm is the slopeThe first point is (3,-4) and the second point is (3,8)
Let's first find the slope. The equation of m is given by:
[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]m=\frac{8-(-4)}{3-3}[/tex]
Here the slope is not defined, so we can not find the equation of this line, because it is not a function.
I hope it helps you!
a cone has a radius of 5 and height of 6 Iowk need the answer asap please it's on khan academy!!
Answer:
the volume is 157.08
Step-by-step explanation:
formula is v=1/3hπr²
1: V=1/3(6)π(5)²
2. V=1/3(6)π(25)
3:V=2*π*25
4: V=157.079
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Write a list of steps that are needed to find the measure of ∠B.
Step-by-step explanation:
Angle BCA + Angle BCD = 180 (Sum of angles on a straight line)
Angle BCA + 113 = 180
Angle BCA = 180 - 113
= 67
Angle BCA + Angle A + Angle B = 180 (Sum of angles in a triangle)
67 + 72 + Angle B = 180
139 + Angle B = 180
Angle B = 180 - 139
= 41
The measure of ∠B is m∠B = 41°.
What is a Triangle?A polygon which has three sides and three vertices is called as triangle.
The sum of all the angles of the triangle is 180°.
Given:
The sum of the exterior angle and adjacent angle with is 180°.
So, ∠BCD = 180 - 113 = 67°.
The sum of all the angles of the triangle is 180°.
So,
72° + 67° + ∠B = 180°.
∠B = 180° - 139°.
∠B = 41°.
Therefore, ∠B = 41°.
To learn more about the triangle;
https://brainly.com/question/2773823
#SPJ2
What is the value of x in the equation 4(-5 + x) = -4?
Answer:
x=4
Step-by-step explanation:
First, simplify:
-20 +4x =-4
Then, solve
4x=16
x=4
Answer:
The value of x would be 4.
Solve for x 4(x+9)= 3(2x - 7)
Answer: X= 57/2
Hope this helps!
Answer:
x = 28.5
Step-by-step explanation:
1. Write the equation
4(x+9) = 3(2x - 7)
2. Distribute
4x + 36 = 6x - 21
3. -4x from both sides
36 = 2x - 21
4. +21 on both sides
57 = 2x
5. Divide 2 on both sides
x = 28.5
You are the coach of the girls’ basketball team at a local middle school. It is the fifth game of the season, the game is tied, and there are only 5 seconds left on the clock. The referee has called a technical foul on the other team. You get to choose any one of your girls to take the shot. Basing your decision only on on their free-throw shooting thus far this season, whom would you pick, Becky or Rachel? Becky has made 8 of 12 free throws. Rachel has made 15 of 20 free throws.
Answer: Becky I guess
Step-by-step explanation:
What is the equation for f(x)
Answer:
it's a black image theres no line
4) You randomly select one card from a 52-card deck. Find the probability of selecting the 6 of hearts or the ace of diamonds.
Answer:
1/26
Step-by-step explanation:
There is only one 6 of hearts and only one ace of diamonds.
The probability of selecting the 6 of hearts is thus 1/52, and that of selecting the ace of diamonds is also 1/52.
The probability of selecting the 6 of hearts or the ace of diamonds is the SUM of these two results: 1/52 + 1/52 = 2/52 = 1/26.
a chain that measures 5 feet long is divided into 3 equal parts
The total length of each part is 5/3ft.
I need help with this question plzz
Answer:
40 miles away from home
To put it in yard would be 82,720
Step-by-step explanation:
Martin buys a car for $15,000. The value of the car depreciates by 7% each year. What is the value of his car 5 years after he purchased it? Round to the nearest dollar. Help asap
Answer:
I think the answer would be 2,140
1 point
8. The dot plot below represents the number of dollars in allowance that
students receive each week in Mrs. Jimenez's class. What is the median
amount of allowance?
1...
+
2
+
4
+
12
+
14.
O
6
8
10
16
DOLLARS OF ALLOWANCE EACH WEEK
Answer:
6
Step-by-step explanation:
i am not sure but i think its right sorry if you get it wrong
Hurry this is due in 8 minutes
A 1/20
B 1
C 10%
Answer: A, 1/20
Step-by-step explanation: There is only one Ryan of 20 students.
ILL GIVE THE BRAINLIEST pls help me with this question EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY IF YOU PUT A WRONG ANSWER ILL REPORT YOU FASTER THAN ASSIGMENT IS DUE
Answer:
90mm cubed
Step-by-step explanation:
Answer:
90 mm³
Step-by-step explanation:
V = area of base multiplied by height
base in this example is the triangle, which has an area of 15/2 or 7.5
height = 12
12 x 7.5 = 90
escribe en forma de potencia y encuentra el valor
((-9)²)³
Answer:
Step-by-step explanation:
Answer:
531441
Step-by-step explanation:
using multiplicative law of indices
2 by 3 Is 6
so, -9⁶=531441
HELP MEEEEEEE PLEASE
Answer:
choice 1) 14m
Step-by-step explanation:
HELP ASAP
if dy/dx = 2 - y, and if y = 1 when x = 1, then y = ??? PHOTO ATTACHED
Answer:
y=2-e^(1-x)
Step-by-step explanation:
This can be solved by separating the variables.
dy/dx=2-y
Multiply both sides by dx
Divide 2-y on both sides
dy/(2-y)=dx
Integrate both sides
-ln|2-y|=x+c
Multiply both sides by -1
ln|2-y|=-x-c
Equivalent logarithm form
2-y=e^(-x-c)
Minus 2 on both sides
-y=e^(-x-c)-2
Multiply both sides by -1
y=-e^(-x-c)+2
The ordered pair (1,1) belongs to the curve so we have
(I'm going to use this earlier form -ln|2-y|=x+c)
-ln|2-1|=1+c
-ln|1|=1+c
-0=1+c
0=1+c
Minus 1 on both sides
-1=c
Answer:
y=-e^(-x-(-1))+2
Or
y=-e^(-x+1)+2
Or
y=2-e^(1-x)
help pls !
find the angle measure given extended triangles
Salim has a picture book with 124 pages in it. He read 1/4 of the book to his little brother. How many pages did he read?
Answer:
31
Step-by-step explanation:
124/4 = 31 pages per one fourth of the book
If your brother reads one fourth of the book then he reads 31 pages.
31
Step-by-step explanation:
divide 1/4 by 24 and 31 should be the answer
Does every number have a decimal expansion?
yes or no
