Answers
Related Questions
The heart rates in beats per minute for runners who walk briskly on a treadmill for 6 minutes follow a Normal distribution with a mean of 104 and standard deviation of 12.5. What percent of the runners have heart rates above 140?
Answers
Answer:
0.2%
Step-by-step explanation:
We apply the z score formula.
This is given as:
Z score = x - μ/σ
x = Raw score = 140
μ = Population mean = 104
σ = Standard deviation = 12.5
z = 140 - 104/12.5
z = 2.88
Probability value from Z-Table:
P(x<140) = 0.99801
P(x>140) = 1 - P(x<140)
= 1 - 0.99801
= 0.0019884
Approximately = 0.0020
Converting to percent = 0.2%
Therefore, percent of the runners have heart rates above 140 is 0.2%
A bottle of medication contains 30 mls. After withdrawing 2.25 mls for an injection, how many
mls of medicine remain in the bottle?
Help please
Answers
Answer:
27.75 mls
Step-by-step explanation:
30mls - 2.25mls is equal to 27.75mls
The area of a square sports arena is 10,000 m² what are the dimensions of the sports arena on the map.
Answers
Answer:
Step-by-step explanation:10,000square you have to multiply them my all squares to get the answer
Kadyn rode his bicycle in a marathon for
176 miles. He took a rest stop every 22
miles. How many rest stops did Kadyn
take?
Answers
Kadyn took 8 rest stops.
Step-by-step explanation:
22 x 8 = 176
Answer: The answer is 8
SOMEONE PLS HELP ME W THIS QUESTION ASAP I’LL MARK BRAINLIEST
Answers
Answer:
i think it is A the first option
Step-by-step explanation:
an expression equivalent to –8(2s–5)–4
Answers
Answer:
The answer:-16s+40-4
Answer:
-4 x (4s - 9)
Step-by-step explanation:
three out of four students in school have a least one sibling. If there are 300 students in your school, how many would have a least one sibling
Answers
25 I think.... I am sorry if its wrong
Horses A veterinarian measures a horse to be 7.5
ft tall at the shoulder to the nearest half foot. What
are the minimum and maximum possible heights of
the horse?
Answers
Answer:
Minimum height is 7.25ft and maximum height is 7.75ft
Step-by-step explanation:
You measured to the nearest half foot, so the greatest possible error is 0.25 foot.
Minimum height= measured value-possible error= 7.5-0.25= 7.25ft
Maximum height= measured value+possible error= 7.5+0.25= 7.75ft
what is an equation of the line that is parallel to y=-5+6 and passes through the poing (-4,-1)
Answers
Answer:
y=5x+19
Step-by-step explanation:
y+1=-5(x+4)
y+1=-5x-20
Subtract 1 (like terms)
y=-5x-21
Find the slope given the following two points: (16,3) and (14, -19)
Answers
Answer:
the slope m=11
Step-by-step explanation:
(To find the slope use the equation m=[tex]\frac{y2-y1}{x2-x1}[/tex])
(16,3), where 16=x1 and 3=y1
(14,-19), where 14=x2 and -19=y2
m=[tex]\frac{y2-y1}{x2-x1}[/tex]
=[tex]\frac{-19-3}{14-16}[/tex]
=[tex]\frac{-22}{-2}[/tex]
(simplify)
=11
What’s the rule it’s algebra 1
Answers
Answer:
An algebraic rule is a mathematical expression that relates two variables and is written in the form of an equation. There are many constant algebraic rules, such as area = length x width. You can also create your own rule when given a set of variables
Step-by-step explanation:
Rewrite the range of each company’s wireless access devices in feet using scientific notation. (5,280 feet =1 mile)
Answers
Answer: in pics it’s the answer key
Step-by-step explanation:
Which expression is equivalent to (fa)(5)?
Answers
Answer:
ylyiky lio
Step-by-step explanation:
Hi - hi = x
(x) - hi + no = y
(y) x (x) =?
If you can solve this you get brainliest.
Answers
Answer:pi=72628
Step-by-step explanation:
Answer:
hi=bye
Step-by-step explanation:
A solid right pyramid has a square base. The base
edge length is 2 cm longer than the height of the
pyramid.
If the height is 6 cm, what is the volume of the
pyramid?
20 m3
Answers
Answer:
128 cm^3
Step-by-step explanation:
Luke and Leia are selling hot dogs and hamburgers at a minor league baseball game. At the end of the day they determine they have sold a total of 45 items and earned $195. If hot dogs cost $4 and hamburgers cost $5, how many did they sell of each?
What would be a system of equations for the scenario above?
Answers
Answer:
15 hamburgers were sold and 30 hotdogs were sold.
The systems of equations are x + y = 45 and 4x + 5y = 195.
Step-by-step explanation:
Let's make two equations.
x + y = 45
This represents the total of hotdogs and hamburgers sold
4x + 5y = 195
This represents the amount of money made for each food.
These are systems of equations, when you use 2 equations to solve a problem. I will use the strategy, Elimination for the following systems of equations. Anyways the goal is to multiply a number to x + y = 45 to cancel out one of the variables in 4x + 5y = 195. In other words, when we add these equations, the sum of the xs or ys will equal 0.
Let's multiply -5 to both x and y.
Now we have -5x -5y = -225 + 4x + 5y= 195
We will end up with -x = -30. This means that x = 30.
Now that we know x = 30, we can plug in 30 as x in one of the equations. I will plug in 30 into x + y = 45. 30 + y = 45.
Solve for y in 30 + y = 45, so y=15.
This means 15 hamburgers were sold and 30 hotdogs were sold.
The United
States Mint released five state quarters
every year. There are 50 states. How many
years did it take for all 50 state quarters to
be released? Write and solve an equation.
Answers
Answer:
I found a link where this question was asked before with some helpful answers, here you go hope this helps! :)
https://brainly.com/question/1757751
Evaluate [4+(15+3)÷9]×7
Answers
Answer:
Evaluate [4+(15+3)÷9]×7 equals 42
Step-by-step explanation:
1/8 as a decimal show how to do it
Answers
Answer:
0.125
Step-by-step explanation:
1/8 is the same as 1 ÷ 8
1 ÷ 8 = 0.125
I hope this helped!
Answer:
0.125
Step-by-step explanation:
how i do it it to multiply 125 by 8 that equals 1000. now, every 125 is 1/8 so there is your answer
A box of 151515 cookies costs \$9$9dollar sign, 9.
What is the cost for 111 cookie?
Answers
Answer:
what they said
Step-by-step explanation:
cause i said so
Answer:
its 0.6
its really is :>>>>>>>
Find the value of x.
Answers
Answer:
x=24
Step-by-step explanation:
The straight line is 180 degrees so 180-35=145.
Than do 145=6x+1 and find x
144=6x
144/6=24
x=24
Answer:
x=24
Step-by-step explanation:
180-35=145
6x+1=145
6x=144
x=24
Robert and Dora need to write 4,300,000,000 using scientific notation. Robert claims that 4,300,000,000 = 4.3 x 108 and Dora claims that 4,300,000,000 = 4.3 x 109. Which of the following best describes whose number is correct and the reason it is correct?
Answers
Answer:
Robert is correct
Step-by-step explanation:
we know in scientific notation a positive number goes to the right and if we do 4.3 and we go back the spaces it would be nine spaces so it would be 4.3 X 109
A rectangle or plot of land has an area of 8/3 square miles and a length of 3/5 of a male What is the width of the plot of land in Miles?
Answers
The equation for a parabola has the form y = ax2 + bx + c, where a, b, and c are constants and a ≠ 0. Find an equation for the parabola that passes through the points (−1, −11), (1, −5), and (2, −8).
Answers
Putting (-1, -11) in given equation, we get :
-11 = a + -b + c ....1)
Similarly putting (1, −5) and (2, −8) we get :
-5 = a + b + c ....2)
-8 = 4a + 2b + c ....3)Adding equation of 1) and 2) we get :
2( a + c ) = -6
a + c = -3
Solving equation 1 , 2 and 3 ,we get :
a = -2 , b = 3 , c = -6
Therefore, equation of parabola is :
y = -2x² + 3x -6
Hence, this is the required solution.
Logan is solving this problem:
The cheetah ran 0.05 hours at a rate of 70 mph. How far did the cheetah run?
Logan solves the problem by writing:
d = r t. d = 70.05 miles.
What is wrong with Logan’s work?
A.) Logan used the wrong formula. He should have used A = bh.
B.) Logan did not use parentheses when substituting, and he did not multiply the numbers.
C.) Logan's work is correct.
D.) Logan labeled his answer incorrectly. The correct label is feet.
Answers
Answer:
Logan did not use parentheses when substituting, and he did not multiply the numbers.
Step-by-step explanation:
took the assignment, it was correct.
Answer:
B
Step-by-step explanation:
what is the area of this figure
Answers
Answer:
a = 83 inches
Step-by-step explanation:
5 * 11 = 55
7 * 4 = 28
55 + 28 = 83
Combine like terms.
y+6 - 2 – 4y^3– 5y + 2y^3 – 2y^3
Answers
Answer: −4[tex]y[/tex] + 4 − 4[tex]y^{3}[/tex]
Step-by-step explanation:
Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below.
Step 1: Collect like terms.
([tex]y[/tex] − 5[tex]y[/tex]) + (6 − 2) + (−4[tex]y^{3}[/tex] + 2[tex]y^{3}[/tex] − 2[tex]y^{3}[/tex])
Step 2: Simplify.
−4[tex]y[/tex] + 4 − 4[tex]y^{3}[/tex]
~I hope I helped you! :)~
What is the inverse of the following statement: “If x is a whole number, then x = 5”?
a) If x is not a whole number, then x ≠ 5.
b) If x = 5, then x is a whole number.
c) If x ≠ 5, then x is not a whole number.
d) If x is not a whole number, then x = 5.
Answers
Answer:
It's a
Step-by-step explanation:
Because inverse means opposite so they are asking for the opposite of the statement "If x is a whole number, then x = 5”
Hope this helped ✨
If x is not a whole number, then x ≠ 5 is inverse of the statement if x is a whole number, then x = 5
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given statement is "If x is a whole number, then x = 5". To find its inverse, we need to switch the hypothesis and the conclusion, and negate both parts of the statement.
The hypothesis is "x is a whole number", and its negation is "x is not a whole number".
The conclusion is "x = 5", and its negation is "x ≠ 5".
So, the inverse of the given statement is:
"If x is not a whole number, then x ≠ 5."
Therefore, if x is not a whole number, then x ≠ 5 is correct answer.
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ3
Morton sees these stickers at a craft store. What is the ratio of clouds to suns ☁️☀️☁️☁️☀️
Answers
Answer:
3:2
Step-by-step explanation:
3 clouds, 2 suns
Answer: 3:2
Step-by-step explanation:
there are three clouds to two suns
Evaluate the expression 5x4+2x6
Answers
Answer:
The answer to this is: 132
Step-by-step explanation:
Answer:
32
Step-by-step explanation:
Hope this helps!!