Answer: normal force of the ground pushing the boy up
Answer:
the normal force of the ground pushing the boy up
Step-by-step explanation:
Find the equation of the line that passes through (-3,1) and is parallel to y=4−3x.
Leave your answer in the form y=mx+c
See attachment for math work and answer.
The equation of the line that passes through the given point has the same slope as the given equation.
The equation of the line that passes through (-3,1) and is parallel to y=4−3x is y = -3x - 8.
What is Slope?Slope of a line is the ratio of the change in y coordinates to the change in the x coordinates of two points given.
Slope can also be defined as the tangent of the angle that the line is making with the positive X axis.
Slope intercept form of a line is y = mx + c, where m is the slope and c is the intercept along the Y axis.
We have the required line is parallel to the line y = 4 - 3x.
Slope of parallel lines are same.
Slope of the required line = -3
Equation will be of the form y = -3x + c
Required line passes through (-3, 1).
Substituting the values of the point in the equation,
1 = (-3 × -3) + c
1 = 9 + c
c = -8
Equation becomes y = -3x - 8
Hence the required equation of the line is y = -3x - 8.
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The sixth-grade class was asked the question, “What job would you like the best?” The results are shown in the table. What percent of the sixth-grade class said that they would like to be a movie director?
A) 23%
B) 31%
C) 41%
D) 45%
The percent of the sixth-grade class that said they would like to be a movie director is A. 23%.
How to calculate the percentage?It's important to note that a percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100.
In this case, the sixth-grade class was asked the question, “What job would you like the best and the results are shown in the table.
.
The. total number will be:
= 84 + 92 + 124 + 100
= 400
The percent of the sixth-grade class that said they would like to be a movie director will be:
= Movie director / Total number × 100
= 92/400 × 100
= 23%
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Find the area of a triangle with sides of length 7 and 9 and included angle 72 degree.
Answer:
A = 29.96
Step-by-step explanation:
Area of a triangle
Side Angle Side (SAS) Method :
Given a triangle with two known sides a and b, and their included angle C, the area can be calculated as follows:
[tex]\displaystyle A=\frac{a.b.\sin(C)}{2}[/tex]
The triangle has sides of lengths a=7 and b=9 and their included angle is C=72°. Substituting:
[tex]\displaystyle A=\frac{7\cdot 9.\sin(72^\circ)}{2}[/tex]
A = 29.96
Fortunately for you, summer is fast approaching and now is your opportunity to work
and raise money. Your parents have agreed to help you purchase a used car (Links to
an external site.) between $9,000 - $12,000; however, they have asked for your help.
You will need to contribute 35% of the price of the car and they will pay for the rest.
You have just been hired at a local business which is open 7 days a week for the 12
weeks of summer. You need to determine the number of hours on average you would
need to work during the week and on the weekend in order to reach your contribution
goal. The table below shows the pay rates for your new job:
monday-friday 7.30 per hour
weekend 13.5 per hour
You plan to work 40 hours a week for the entire summer and will save all of the money
you earn to put towards your car contribution; however you are NOT expected to work
every day. Also, be aware that the company does not schedule students more than 8
hours a day.
Your parents have asked that you provide them with a written plan including the car you
are purchasing, it's cost, and a detailed explanation for how you will earn your portion of
the cost of the car. Your parents aren't easily convinced and will want to see how you
came up with these numbers and proof that your calculations are accurate.
Your parents are excited about this opportunity and are anxious to hear what decisions
you have made. Happy shopping!
i will buy a 11998$ car
Answer:
ok?
Step-by-step explanation:
Please solve!! write and solve inequality.
Will Name BRAINLIEST!!!
Answer:
time greater than 6 hours
Step-by-step explanation:
For this problem, we are given the rate at which the refrigerator's temperature increases and the rate at which the oven's temperature decreases along with the initial temperatures for both. Using this information, we can determine the amount of time that will need to pass for the two to have equal temperature, or pass each other in opposite directions of temperature. Let's write the inequality using the information:
40 + 5t > 340 - 45t
Let t be the amount of time passed in hours. So, we simply need to solve the inequality for t.
40 + 5t > 340 - 45t
40 + 50t > 340
50t > 300
t > 6
Given this information, we know that after 6 hours have passed, the temperature of the fridge and oven will be equal. So we can say that any time greater than 6 hours, the fridge will have a higher temperature than the oven.
Cheers.
A forest covers 72,000 acres. A survey finds that 0.4
% of the forest is old-growth trees. How many acres of old-growth trees are there?
288 acres are old-growth trees
The value of x must be greater than:
PLEASE HURRY!
Answer:
3!!
Step-by-step explanation:
trusttttt
Rodney wants to buy a camera that costs $133. This amount is $25 more than 3 times the amount he saved last month. Which equation could be used to solve for x, the amount Rodney saved last month?
Answer: 25+3x =133
Step-by-step explanation:
Let x = the amount Rodney saved last month
Cost of camera Rodney wants to buy= $133 , which is $25 more than 3 times the amount he saved last month.
i.e. 25+3(amount Rodney saved last month) = Cost of camera (in dollars)
i.e. 25+3x =133 (in dollars)
Hence, the equation could be used to solve for x : 25+3x =133
FIRST CORRECT ANSWER GETS BRAINLEST!!!
Gregg has q quarters and p pennies. His brother has 4 times as many quarters and 8 times as many pennies as Gregg has. Write the sum of the number of coins they have, and then combine like terms.
What is the diameter of a circle if the radius is 30 meters? (just type in your answer as a number only)
Answer:
60
Step-by-step explanation: you just multiply the radius by 2
Answer:
60
Step-by-step explanation:
r=d/2
30=d/2
60=d
d=60
Please help me, but the answer choices are
A) 4/3 (11) pi
B) V=2/3 (11) pi
C) V=4/3 (11)
D) V=2/3 (11)
Answer:
B
Step-by-step explanation:
answer is B
and what is ypur grades
Rearrange to make x the subject: 3x+8= x+6y
Answer:
x=3y/x-4x
Step-by-step explanation:
3x+8=x+6y
2x+8=6y
2x=6y-8
x=3y/x-4x
Answer:
x=3y-4
Step-by-step explanation:
3x+8=x+6y
3x-x=6y-8
2x/2=(6y-8)/2
x=3y-4
Round -5 1/2 to the nearest whole number
Answer:
dear explain your question briefly
Step-by-step explanation:
We will try to explain you
The round off -5 1/2 to whole number is -6.
What is Fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.Given:
Fraction: -5 1/2
Now, converting it to the decimal
= -11/2
= -5.5
now, rounding off to whole -5.5 will lie between -5 and -6.
Hence, the whole number round off for - 1/2 is -6.
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x^2 plus 2y divideed by 2x plus 3z equal
Answer:
(x^2 plus 2y")
--------------------
2x(2x + 3)
Step-by-step explanation:
Doing this problem correctly requires the application of "order of operations" rules. "x^2 plus 2y" actually means "(x^2 plus 2y"), and so your
x^2 plus 2y divided by 2x
comes out to:
(x^2 plus 2y")
--------------------
2x
If we now divide this result by "2x plus 3z," we get:
(x^2 plus 2y")
--------------------
2x
================
2x + 3
or:
(x^2 plus 2y")
--------------------
2x(2x + 3)
The sales tax in your city is 8.8% and an item costs $63 before tax.
How much tax would you pay on that item?
Round to the nearest hundredth or cent.
\$\
Answer:
8.8%= .088
Step-by-step explanation:
.088 *63=5.54
$5.54
8=x/7
Find the value of X?
Answer:
X=56
You have to multiply 8 and 7
examine the spinner at right. If the central angle of region A is 7 calculate the expected value of one spin.Round to the nearest hundredth..pls hurry
Answer:
The whole angle on a circle is equal to 360°.
This means that:
∠A + ∠B = 360°.
Here we know that ∠A = 7°
Then ∠B = 360° - 7° = 353°
Now, if the probability is evenly distributed for all the angles, then the probability that the spinner lands in A is equal to the quotient between the measure of the angle A, and the measure of the total circumference, this will be:
Pa = 7°/360° = 0.019
And the same for B:
Pb = 353°/360° = 0.981
Now, the expected value can be calculated as:
Ev = ∑xₙ*pₙ
Where xₙ is the event n, and pₙ is its probability.
Then:
x₁ = A = 100
p₁ = Pa = 0.019
x₂ = B = 2
p₂ = Pb = 0.981
The expected vale will be:
Ev = 100*0.019 + 2*0.981 = 3.862
Rounding to the nearest hundredth, the second digit after the decimal point, we have:
Ev = 3.86
(-4,19) (0,3) whats the slope?
Answer:
m= -4
Step-by-step explanation:
Slope is equal to the change in y over the change in x
, or rise over run.
m=change in ychange in x
The change in x
is equal to the difference in x-coordinates (also called run), and the change in y
is equal to the difference in y-coordinates (also called rise).
m=y2−y1x2−x1
Substitute in the values of x
and y
into the equation to find the slope.
m=3−(19)0−(−4)
Simplify =
m= -4
Solve x-5>-12.
A. X> -7
B. x < -17
C. x > -17
D. x < -7
PLEASE HELP ME
Answer:
A. X>-7
Step-by-step explanation:
So the equation is
X-5>-12
You add 5 on both sides to get the X by itself. You add it because you have to get rid of the -5 and to get to 0 you would add 5.
Which leaves you with X>-7
Answer:
A.) [tex]x>-7[/tex]
Step-by-step explanation:
Solve this the way you would solve an equation: isolate the variable.
Use inverse operations. Add 5 to both sides:
[tex]x-5+5>-12+5\\\\x>-7[/tex]
Since this can't be simplified further, x is greater than -7.
:Done
A pet store has 8 dogs, 12 turtle, and 3 cats. Write a ratio for each of the following situations.
Turtles to dogs and cats:
dogs to turtles
Answer:
Turtles to dogs and cats: 12,8,3
dogs to turtles: 8,12
A consumer group is investigating the number of flights at a certain airline that are overbooked. They conducted a simulation to estimate the probability of overbooked flights in the next 5 flights. The results of 1,000 trials are shown in the following histogram.
Answer:
C. 0.446
Step-by-step explanation:
1-(0.114+0.332) = 0.446
The sum of the relative frequencies of the bars for 4 and 5 is 0.446.
The probability that atleast four of the next five flights will be overbooked is the sum of the probabilities of having 4 or 5 flights overbooked which is 0.446
The probability of having atleast 4 flights overbooked can be defined as :
P(X ≥ 5) = P(X = 4) + P(X = 5)
From the probability distribution displayed on the histogram :
P(X ≥ 5) = 0.332 + 0.114 = 0.446
Therefore, the probability of having atleast 4 flights overbooked ls 0.446
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Identify the domain of the function shown in the graph.
answer:
c
because all of them is the real number
The original price of a scarf is $16. During a store-closing sale, a shopper saved $12 on the scarf. What percentage discount did she receive?
Factor [tex]3x^2y+28xy^2+32y^3[/tex] completely.
Answer:
y(3x + 4y)(x + 8y)
General Formulas and Concepts:
Alg I
FactoringStep-by-step explanation:
Step 1: Define expression
3x²y + 28xy² + 32y³
Step 2: Simplify
Factor out y: y(3x² + 28xy + 32y²)Factor trinomial: y(3x + 4y)(x + 8y)What multiplies up to 32 adds up to 28 with 3 being multiplied as a coefficient? Numbers are 4 and 8.SOLVING STEPS...
STEP1
FACTOR OUT y FROM THE EXPRESSION
SO ITS
[tex]y \times (3x {}^{2} + 28xy + 32y {}^{2} )[/tex]
STEP2
WRITE 28y AS A SUM
STEP3
FACTOR OUT 3x2 + 24xy
SO IT'S
[tex]y \times (3x \times (x + 8y) + 4xy + 32y {}^{2} )[/tex]
STEP4
FACTOR OUT 4xy + 32y2
SO IT'S
[tex]y \times (3x \times (x + 8y) + 4y \times (x + 8y) \: )[/tex]
STEP5
FACTOR OUT (3x × ( x + 8y ) + 4y × ( x + 8y ) )
SO THE ANSWER IS
[tex]y \times (x + 8y) \times (3x + 4y)[/tex]
GAVE ME THE BRAINLIEST IF MY ANSWER WAS HELPFUL...
Which unit rate is the lowest price per ounce? (5 points)
Choice A: 25 ounces of potato chips for $3.49
Choice B: 45 ounces of potato chips for $4.79
a
Choice A
b
Choice B
c
The unit rates are equal.
d
The unit rates cannot be determined.
Answer:
B)
Step-by-step explanation:
A 25 ounce bag would cost about 14 cents per oz and the 45 ounce bag would cost about 11 cents per oz
given that 27^-1/3 = 9^1/4 / 3^x+1
The value of x will be;
⇒ x = - 5/2
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ [tex]27^{- 1/3} = \frac{9^{1/4} }{3^{x + 1} }[/tex]
Now,
Since, The expression is,
⇒ [tex]27^{- 1/3} = \frac{9^{1/4} }{3^{x + 1} }[/tex]
Solve for x as;
[tex]3^3^*^{- 1/3} = 3^2^*^{1/4} * 3^{x + 1} }\\\\3^{-1} = 3^{1/2} * 3^{x + 1} \\\\3^{-1} = 3^{1/2} ^+^{x + 1}[/tex]
By comparing we get;
⇒ - 1 = 1/2 + x + 1
Solve for x as;
⇒ - 1 - 1 = 1/2 + x + 1 - 1
⇒ - 2 - 1/2 = x
⇒ x = - 5/2
Thus, The value of x = - 5/2
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Jessica's car has a gas tank that holds 18 3/5 gallons of gas. Jessica knows that the tank only has 3 1/3 gallons of gas left in it. How much gas would it take to fill up the gas tank?
Answer: It would take [tex]21\dfrac{14}{15}[/tex] gallons of gas to completely fill the tank.
Step-by-step explanation:
Given: capacity of tank = [tex]18\dfrac35[/tex] gallons
[tex]=\dfrac{18\times5+3}{5}=\dfrac{93}{5}[/tex] gallons
Tank contains [tex]3\dfrac13[/tex] gallons of gas
i.e. it has [tex]\dfrac{3\times3+1}{3}=\dfrac{10}{3}[/tex] gallons of gas.
Difference = [tex]\dfrac{93}{5}-\dfrac{10}{3}=\dfrac{93\times3+10\times5}{5\times3}[/tex]
[tex]=\dfrac{329}{15}\\\\=21\dfrac{14}{15}[/tex] gallons
Hence, it would take [tex]21\dfrac{14}{15}[/tex] gallons of gas to completely fill the tank.
Write the equation in Standard Form.
72 = 2 – 4y
Answer:
seventy-two equals two minus four times
Step-by-step explanation:
Answer:
72x+4y=2
Step-by-step explanation:
will give u brainlist
which of the numbers below are greater than 5/2
Answer:
6/2
Step-by-step explanation:
Answer:
but some examples are 6/2, ,4,5,7/2, are numbers above 5/2 which is 2.5
Step-by-step explanation: Um I dont see anything below
