Answer:
36 minutes
Step-by-step explanation:
60(.6)= 36
Which of these are expressions?
298
22 x 3
7x = 63
a + b + c
0
Step-by-step explanation:
An expression is something like 7x=63
A line passes through the points (-1, 4) and (2, -2). What is the equation of this line?
Write your answer in the form y=mx+b.
I don't get it please help!
Answer:
y = -2x+2
Step-by-step explanation:
First we find the slope
m = (y2-y1)/(x2-x1)
= (-2-4)/(2--1)
= (-2-4)/(2+1)
-6/3
-2
We have the slope =-2
We can substitute it into the equation
y = mx+b where m is the slope and b is the y intercept
y =-2x+b
Use a point for x and y to solve for b
4 = -2(-1) +b
4 = 2+b
Subtract 2 from each side
4 -2 = -2+2+b
2 = b
We know m and b
y = -2x+2
Answer:
y = -2x + 2
Step-by-step explanation:
Slope: (-2-4)/(2--1) = -6/3 = -2
y - 4 = -2(x - -1)
y = -2x - 2 + 4
y = -2x + 2
An angle measures 50° more than the measure of its supplementary angle. What is the measure of each angle?
An angle measures 50° more than the measure of its supplementary angle. However, there are no angles that satisfy this condition.
Explanation:An angle measures 50° more than the measure of its supplementary angle.
To solve for the measure of each angle, we can set up an equation:
Let x be the measure of the angle, and let y be its supplementary angle.
Since the sum of the measures of two supplementary angles is 180°, we can write the equation:
x = y + 50°
Substituting y + 50° for x in the equation, we get:
y + 50° = y
Subtracting y from both sides, we get:
50° = 0
Since there is no solution to this equation, it means that there are no angles that satisfy the given condition.
The smaller angle measures 65° while the larger angle measures 115°.
Let's denote the measure of the smaller angle as x degrees. Since the angles are supplementary, their sum must be 180 degrees. Thus, the measure of the larger angle will be (x + 50) degrees.
Using this information, we can form the following equation:
x + (x + 50) = 180
Simplify the equation:
2x + 50 = 180
Subtract 50 from both sides:
2x = 130
Divide both sides by 2:
x = 65
Therefore, the measures of the angles are:
Smaller angle: 65°Larger angle: 115° (because 65° + 50° = 115°)A fast food restaurant wants to know what types of toys to put in their kids meals, so they will survey their customers. What would be the BEST way to do this?
personally i would ask every one who orders a kids meal.
hope this helps
Answer:
the answer is c) Ask anyone who orders a kid's meals
Step-by-step explanation:
PLEASE HELP NEED THIS NOW AAAAA
-282 - (+1,017)=?
Answer:
-1299
Step-by-step explanation:
-282-1017
Answer:
-1299
Step-by-step explanation:
-282 - 1017 = -1299
(-282) + (-1017)
Hope this helps ^-^
help please!! kinda confusing for me...
6
Step-by-step explanation:
-2^3=-8
-10+(-8)=-10-8=-18
-18÷-3=6
ANSWER FAST I NEED IT TO PASS Follow the steps to solve the equation using the algebra tiles.
−4x + 1 = x + (−4)
1. Add 4 positive x-tiles to both sides and create zero pairs.
2. Add 4 positive unit tiles to both sides and create zero pairs.
3. Divide the unit tiles evenly among the x-tiles.
x =
The solution to the equation -4x + 1 = x + (-4) using algebra tiles is x = 1
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given the equation:
-4x + 1 = x + (-4)
Add 4 positive x-tiles to both sides and create zero pairs:
-4x + 1 + 4x = x + (-4) + 4x
1 = 5x - 4
Add 4 positive unit tiles to both sides and create zero pairs:
1 + 4 = 5x - 4 + 4
5x = 5
Divide the unit tiles evenly among the x-tiles:
5x/5 = 5/5
x = 1
The solution to the equation -4x + 1 = x + (-4) using algebra tiles is x = 1
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x = 1
Step-by-step explanation: did on edge
File with question is attached. Whoever answers gets a Brainly Crown!
Answer:
B. r ≤ -8
Step-by-step explanation:
First solve the inequality.
-2r + 3 ≥ 19
Subtract 3 from both sides.
-2r ≥ 16
Divide both sides by -2. But wait. Don't forget to flip the greater than sign when you divide an inequality by a negative number!!
r ≤ 16/-2
See how we flipped the greater than to a less than because the inequality was divided by a negative number on both sides?
r ≤ -8
So the answer is B.
The grades on a history midterm at Almond are roughly symmetric with \mu = 85μ=85mu, equals, 85 and \sigma = 2.0σ=2.0sigma, equals, 2, point, 0. Michael scored 868686 on the exam. Find the z-score for Michael's exam grade. Round to two decimal places.
Answer:
0.50
Step-by-step explanation:
The z-score for Michael's exam grade is 0.5.
Explanation:To find the z-score for Michael's exam grade, we can use the formula: z = (x - µ) / σ, where x is the value of Michael's grade, µ is the mean, and σ is the standard deviation.
Plugging in the given values,
we get z = (86 - 85) / 2 = 0.5.
Therefore, the z-score for Michael's exam grade is 0.5.
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Suppose vanilla beans cost $600 per kilogram. Julie bought 9 grams of vanilla beans. Jacques bought 70 grams of vanilla beans. How much more did Jacques pay for his vanilla beans? $5.40 $12.00 $36.60 $42.00
Answer:
5.40
Step-by-step explanation:
Cost of 70 gram vanilla beans is $42, so Jacques pay $42 for his vanilla beans.
Cost based problem:What information do we have?
Cost of 1 kg vanilla beans = $600
Amount of vanilla beans bought by Jacque = 70 gram
Cost of 1 g vanilla beans = [600/1000]
Cost of 1 g vanilla beans = $0.6 per gram
Cost of 70 gram vanilla beans = 70 × Cost of 1 g vanilla beans
Cost of 70 gram vanilla beans = 70 × $0.6
Cost of 70 gram vanilla beans = $42
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what’s equivalent for x to the power of -3 that uses positive exponents?
A. x to the power of -3
B. x to the square root of 3
C. 1 over x to the power of 3
D. 1 over x to the power of 1/3
Answer:C
Step-by-step explanation:
When using negative exponents, I’m you flip the number to the opposite side numerator to denominator in this case. So you would have 1 over x to the third power.(1/x^3)
A number, y, is equal to twice the sum of a smaller number and 3. The larger number is also equal to 5 more than 3 times the smaller number. Which equations represent the situation? 2 x minus y = negative 6 and 3 x minus y = negative 5 2 x minus y = negative 3 and 3 x minus y = negative 5 2 x minus y = negative 6 and x minus 3 y = 5 2 x minus y = negative 3 and x minus 3 y = 5
Answer:
2 x minus y = negative 6 and 3 x minus y = negative 5
Step-by-step explanation:
y = 2(x+3) = 2x + 6 or 2x - y = -6
y = 5 + 3x or 3x - y = -5
The equations that represent the situation is: 2 x minus y = negative 6 and 3 x minus y = negative 5
From the given information:
Let the smaller number be x; then the word problem can be expressed as:
y = 2(x + 3) ---- (1)y = 5 + 3x ---- (2)From (1), if we open the brackets, we have:
y = 2x + 6-2x + y = +6multiplying through by (-), we have:
2x - y = -6Also, from equation (2)
y = 5 + 3xBy rearrangement
y - 3x = 5-3x + y = 5Multiplying through by (-), we have:
3x - y = -5Therefore, we can conclude that the equations that represent the situation is: 2 x minus y = negative 6 and 3 x minus y = negative 5
Learn more about word problems here:
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(11+i)^2
please help!
Answer:
121 + 22i - 1
Step-by-step explanation:
Expand:
(11 + i)² = (11 + i)(11 + i)
Note that:
i² = -1
Use FOIL method. Multiply first terms, outside terms, inside terms, then the last two terms:
(11)(11) = 121
(11)(i) = 11i
(i)(11) = 11i
(i)(i) = -1
Combine like terms:
121 + 11i + 11i - 1
121 + (11i + 11i) - 1
121 + 22i - 1
121 + 22i - 1 is your answer.
~
Find the volume of the figure
Answer:
see below
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h
We know the diameter so we need the radius
r = d/2 =13/2 = 6.5
V = pi (6.5)^2 (19)
V = 802.75 pi mm^3
We can approximate pi by 3.14
V =2520.635 mm^3
or by using the pi button
V =2521.913503 mm^3
Andrea has a credit score of 895 and Ashley has a credit score of 768. Stutts National Bank has determined that both will receive a credit card; however, the borrower with the lower credit score will be charged a $50.00 fee the first time she makes a purchase. If both receive a credit card with $1,500.00 available credit, what will Ashley's remaining available credit be after she purchases a $425.00 Coach bag?
Answer:
Ashley's remaining available credit after her first purchase is $1025.00
Step-by-step explanation:
Here we are told that the borrower with the lower credit score will be charged $50.00 fee after the first purchase
Therefore, we have
Credit score Andrea = 895
Credit score for Ashley = 768
Therefore, Ashley has the lower credit score hence after her first purchase of a $425.00 Coach bag, we have
Available credit = Initial balance - Purchase - Charges
∴ Available credit = $1,500.00 - ($425.00 + $50.00) = $1025.00
Therefore, Ashley's remaining available credit after she purchases the $425.00 Coach bag = $1025.00.
Look at the graph of the linear function.The rate of change between point A and point B is 2. What is the rate of change between point C and point D?
–2
Negative one-half
One-half
2
the answer is be like 20
Answer:
The answer is -1/2
Step-by-step explanation:
Which three-dimensional figures have lateral faces that are polygons? Check all that apply
Question:
Which three-dimensional figures have lateral faces that are polygons? check all that apply.
- cones
- cylinders
- hemispheres
- prisms
- pyramids
- spheres
Answer:
The correct choices are;
- prisms and
- pyramids
Step-by-step explanation:
A polygon is a figure closed or bounded with several straight line segments and polygons are named based on how many sides, side size and sizes of angles that they have present.
A three sided polygon for example is called a triangle
A lateral face are the faces of a prism except the base
Based on the definitions, we note that out of the options, only prisms, and pyramids have lateral faces that are made up entirely of straight line segments, hence polygons. Therefore, the correct choices are prisms and pyramids.
Answer:
Actually the correct is Cylinders, Prisms, and Pyramids. I just did it
Step-by-step explanation:
What is the median in the box plot?
A box-and-whisker plot. The number line goes from 50 to 100. The whiskers range from 68 to 94, and the box ranges from 70 to 80. A line divides the box at 76.
18,300 divided by 19.7%
Answer:
13,300 divided by 19.7 % is 92893.4010152
Step-by-step explanation:
Oil flows into a tank according to the rate F(t)=t^2+1/1+t , and at the same time empties out at the rate E(t)=ln(t+7)/t+2, with both F(t) and E(t) measured in gallons per minute. How much oil, to the nearest gallon, is in the tank at time t = 12 minutes. You must show your setup but can use your calculator for all evaluations. (10 points)
Answer:
573.95 gallons/minute
Step-by-step explanation:
To find the amount of oil after 12 minutes you take the difference between the amount of oil that flows into the tank minus the the oil that flows aout the tanks. Then you have:
[tex]T(t)=F(t)-E(t)\\\\F(t)=t^2+\frac{1}{t+1}\\\\E(t)=\frac{ln(t+7)}{t+2}[/tex]
Being F(t) the flow that goes into the tank per minute, and E(t) the amount of oil that flows outside the tank per minute.
To know the total amount of F and E for t=12 you integrate these function:
[tex]\int_0^{12}F(t)dt=\frac{t^3}{3}+ln(t+1)|_{0}^{12}=578.56\frac{gallons}{minute}\\\\\int_{0}^{12}E(t)dt=\int_0^{12}[\frac{ln(t+7)}{t+2}]dt=4.61\frac{gallons}{minute}\\\\\int_0^{12}T(t)dt=578.56-4.61=573.95\frac{gallons}{minute}[/tex]
573.95 gallons/minute
Which number is the additive inverse of –5? – One-fifth 0 Negative one-fifth 5
Answer:
The additive inverse is 5
Step-by-step explanation:
What to we add to -5 to get it to be 0
-5 +x = 0
We add 5
-5+5 =0
Answer:
It is five
Step-by-step explanation:
Teacher's salaries in Georgia are normally distributed with an average salary of $52,000 with a standard deviation of $12,000. What percentage of teachers earn an a salary between $40,000 and $76,000?
Answer:
81.85%
Step-by-step explanation:
We have the following information:
mean = m = 52000
standard deviation = sd = 12000
a = 40000
b = 76000
we need to find the probability between a and b, that is:
P (a <x <b) = P (40,000 <x <76000)
P [(40000 - m) / sd <(x - m) / sd <(76000 - m) / sd]
replacing
P [(40000 - 52000) / 12000 <z <(76000 - 52000) / 12000]
P (-1 <z <2)
P (z <= -1) - P (z <= 2)
We look for this value of z, in the attached table:
0.9772 - 0.1587
P = 0.8185
In other words, the probability is 81.85%
Write one digit on each side of 92 to make a four digit multiple of 45. How many different solutions does this problem have?
Answer:
Two solutions:
Adding 7 to the left and 0 to the right: 7920
Adding 2 to the left and 5 to the right: 2925
Step-by-step explanation:
The multiples of 45 always have as last digit 0 or 5, so the digit to the right of 92 has to be 0 or 5.
If we use 0 as the last digit, our options of multiples will be just 7920 (7920 = 45 * 176)
If we use 5 as the last digit, our option of multiples will be just 2925 (2925 = 45 * 65)
So we have just two solutions for this problem:
Adding 7 to the left and 0 to the right: 7920
Adding 2 to the left and 5 to the right: 2925
Which statement is true about the equation (x – 4)(x + 2) = 16?
The equation x - 4 = 16 can be used to solve for a solution of the given equation.
The standard form of the equation is x2 - 2x - 8 = 0.
The factored form of the equation is (x + 4)(x – 6) = 0.
One solution of the equation is x=-6.
Answer:
The factored from of the equation is (x+4)(x-6)=0.
Step-by-step explanation:
When solving this problem, we need to find the factored form of this problem. Remember that in factored form, the right-hand side of the equation must equal to 0.
We can simply convert the left-hand side to standard form first:
(x-4)(x+2)=16 --> x²-2x-8= 16.
Now, to set the right-hand side of the equation to 0, we must subtract -16 from both sides:
x²-2x-24=0.
Now, if we convert this to factored form, we will get:
(x+4)(x-6)= 0.
All of the other statements are false. This is the only true statement.
David is buying a cheese wheel priced at $650 before tax. The store charges 8%, percent sales tax.
What is the total price, including tax, David pays for the cheese wheel?
Answer:
Pretty sure it would end up being $702 including tax
Step-by-step explanation:
650 * 0.08 = 52
52 + 650 = 702
Find the mode of this data set
18.33.25,36,35,31, 19, 30,23,28.33
Answer:
33
Step-by-step explanation:
So I just put them in order....18,19,23,25,28,30,31,33,33,35,36
and you can see that 33 pops up twice when the others only pop up once..so the answer is 33
10 1/12 + 6 2/3 =
(ANSWER SIMPLIFIED & AS MIXED NUMBER!)
Answer:
16 3/4 orrrrrrrr 67/4
Step-by-step explanation:
10 1/12 + 6 8/12
you need to change the denominators to be the same so you can add them
In triangle ABC, a=10, b=8, and sinB=(3/4). Find sinA
Answer:
15/16
Step-by-step explanation:
To find the value of Sin A can be found using the sine rule. the rule states that the ratio of the length facing an angle in a triangle to the sine of the angle is constant. As such,
a/Sin A = b/Sin B = c/Sin C
Where is a is the side facing angle A, b is the side facing angle B and c is the side facing angle C.
Hence,
8/(3/4) = 10/Sin A
Sin A = 3 * 10 / (8 * 4)
= 30/32
= 15/16
Starting from the same
location, one bird flew 12
miles west and another
bird flew 4 miles north.
Find the direct distance
between the birds.
Answer:
The direct distance between the birds is 12.64 miles.
Step-by-step explanation:
We have, one bird flew 12 miles west and another bird flew 4 miles north. It is required to find the direct distance between the birds. It means we need to find the resultant of two displacement. It can be given by :
[tex]d=\sqrt{12^2+4^2} \\\\d=12.64\ \text{miles}[/tex]
So, the direct distance between the birds is 12.64 miles.
Use the line plots to answer each question.
1) The line plot below shows the sizes of
different insects (in inches).
What is the difference in size between the
shortest and longest insect?