Evaluate 6g - 8k when g=4 and k=2.8
Answer:
Step-by-step explanation:
Putting values in the equation
6g - 8k
6(4) - 8(2.8)
24 - 22.4
= 1.6
Step-by-step explanation:
=6g-8k
=6×4-8×2.8
=24-22.4
=1.6
As I guess
hope it help u.
simplify this expression 9xy4x 3x3y
Answer:
81 x y^5
Step-by-step explanation:
Simplify the following:
9×3×3 x y^4 y
3×3 = 9:
9×9 x y^4 y
9 x y^4×9 y = 9×9 x y^(4 + 1):
9×9 x y^(4 + 1)
4 + 1 = 5:
9×9 x y^5
9×9 = 81:
Answer: 81 x y^5
i really need help with this fast!!
Answer:
Hello. y=1/2x-2
Step-by-step explanation:
The line that is perpendicular to this line ،its slope must be 1/2
So:
[tex]y - y0 = m(x - x0) \\ y - 2 = \frac{1}{2} (x - 8) \\ y = \frac{1}{2} x - 2[/tex]
A builder is building a rectangular deck with dimensions of 16 feet by
30 feet. To ensure that the sides form 90° angles, what should each
diagonal measure?
Answer:
Each diagonal should measure 34 feet to ensure that the sides form 90°
Step-by-step explanation:
The relation between the diagonal of the rectangle and its length and width is D = [tex]\sqrt{L^{2}+W^{2}}[/tex] ⇒ Pythagoras Theorem
∵ A builder is building a rectangular deck with dimensions of 16 feet
by 30 feet
∴ L = 16 feet
∴ W = 30 feet
→ By using the Pythagoras Theorem above to find its diagonal
∵ D = [tex]\sqrt{(16)^{2}+(30)^{2}}[/tex]
∴ D = [tex]\sqrt{256+900}[/tex]
∴ D = [tex]\sqrt{1156}[/tex]
∴ D = 34 feet
→ The diagonals of the rectangle are equal
∴ The length of each diagonal of the rectangle = 34 feet
Each diagonal should measure 34 feet to ensure that the sides form 90°
Qual é o oposto de de -3
Answer:
lo contrario de -3 es positivo tres o 3
What is the decimal equivalent of 11/50
The graph shows the distance Arlene ran on Saturday preparing for a marathon. What is the rate of change and what does it represent?
Answer:
Rate of change = 6 miles per hour
Step-by-step explanation:
Rate of change of the line is represented by the slope of the line.
Formula to get the rate of change is,
m = [tex]\frac{\triangle y}{\triangle x}[/tex]
From the graph attached,
Given straight line is passing through two points (2, 12) and (4, 24).
Rate of change = [tex]\frac{y_2-y_2}{x_2-x_1}[/tex]
= [tex]\frac{24-12}{4-2}[/tex]
= 6
Rate of change of the line = 6 miles per hour
Therefore, rate of change of the graph will define the speed of Arlene.
Sasha hasn’t won any of the 40 games she has played with her four friends so far. She wants to win at least 20%. How many does she need to win in a row to get 20%?
Answer:
10
Step-by-step explanation:
Given that Sasha has won 0 games in the 40 games she has played.
Let she needs to win x game in a row, so
Total game she played = 40 + x
The number of the game she won is x, which is 20% of the total game she played, so
x = 20% of (40+x)
[tex]\Rightarrow x = 0.2(40+x) \\\\\Rightarrow x = 8+0.2x \\\\\Rightarrow x-0.2x=8 \\\\\Rightarrow 0.8x = 8 \\\\\Rightarrow x = 8/0.8=10.[/tex]
Hence, she needs to win 10 games in a row.
can you help me with this? 1
Answer:
I think the correct answer is A
Step-by-step explanation:
becoz an isosceles triangle has both angles equal and also the hypotenuse is the same
which number is irrational number √79 0r √100000
You are $45 how many cars did you wash
Answer:
Give the full question, then I might be able to solve it.
A school boy agrees with his schoolmaster that he will pay a penny for every sum he gets wrong, if he wins 3 pence for every one he gets right. After doing 20 sums he is 4 dimes down. How many did he get right?
Answer:
you see he is 4 pens down you see is 3 pence for every one he gets right. after doing 20 sums he is 4 down so 20 dived by is 5 if there is an answer choice for 16 pick 16 if both pick 5 first trust me.
A company that makes hair-care products had 2,000 people try a new shampoo. Of the 2,000 people, 6 had a mild allergic reaction. What percent of the people had a mild allergic reaction?
*blank* % of the people had a mild allergic reaction.
Answer:
0.3%
Step-by-step explanation:
Answer:
0.3%
Step-by-step explanation:
Divide 6 by 2000
6/2000 = 0.003
One Way to Solve:
To convert any percentage to a decimal, move the decimal point two spaces back from the percentage
0.003 = 000.3%
Determine If The Triangles Are Similar.If They Are,Choose The Reason Why.
Answer:
because they all have 3 corners
SOMEONE HELP!! ASAP ! I’ll give brainliest !!!
I need answers for A B and C! Pls and ty!!
answer the question pls xx
Answer:
3 lines of symmetry
Step-by-step explanation:
the lines go through the vertices of the triangle
Given that n=N-ab find the value of N when n=6,a=1 and b=2
Answer:
N = 8Step-by-step explanation:
n=N-ab
where n = 6
a = 1
b = 2
6 = N - 1(2)
N = 6 + 2
N = 8
What is the value of x in the equation:
1/3(x+3)+ 4 = -4+2
/3x
Answer:
Step-by-step explanation:
[tex]\frac{1}{3} (x+3)+4=-4+\frac{2}{3} x\\multiply~by~3\\x+3+12=-12+2x\\x-2x=-12-3-12\\-x=-27\\or~x=27\\[/tex]
or if it is
[tex]\frac{1}{3} (x+3)+4=-4+\frac{2}{3x}\\ multiply~by~3x\\x(x+3)+12x=-12x+2\\x^2+3x+12x+12x=2\\x^2+27x-2=0\\x=\frac{-27 \pm \sqrt{(27)^2-4*1*-2} }{2*1} \\or~x=\frac{-27 \pm \sqrt{729+8} }{2} \\or~x=\frac{-27 \pm\sqrt{737} }{2}[/tex]
Jaimie earned $80 this week coaching basketball, which is twelve dollars more than twice what she made last week. How much money did Jaimie make last week?
Please Help!!!!
Answer:
34
Step-by-step explanation:
$80 - 12 is 68, and 68/2 is 34.
Hope this is right and helps!
A parachutist's speed during a free fall reaches 264 feet per second. What is this speed in meters per second? At this speed, how many meters will the parachutist fall during 10 seconds of free fall? In your computations, assume that 1 meter is equal to 3.3 feet. Do not round your answers.
Speed:
Distance fallen in 10 seconds:
Answer: They will fall 800 meters. And they are falling 80 meters per second.
Step-by-step explanation: You must first take 264 divided by 3.3 which equals 80, then multiply is by 10.
Total distance fallen in 10 seconds is given by the equation A = 800 meter
What is Speed?Speed is defined as the rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude
Speed = Distance / Time
Given data ,
Let the total distance fallen in 10 seconds be represented as A
Now , the value of A is
The parachutist's speed during free fall = 264 feet/second
Now , 1 meter = 3.3 feet
So , 1 feet = ( 1/3.3 ) meter
So , the value of 264 feet = 264 x ( 1/3.3 ) meter
On simplifying the equation , we get
The value of 264 feet/second = 80 meter/second
Now , the distance traveled by the parachutist every second = 80 meter
So , the distance traveled by the parachutist in 10 seconds = 10 x distance traveled by the parachutist every second
Substituting the values in the equation , we get
The distance traveled by the parachutist in 10 seconds A = 10 x 80
On simplifying the equation , we get
The distance traveled by the parachutist in 10 seconds A = 800 meter
Therefore , the value of A is 800 meter
Hence , the total distance is 800 meter
To learn more about speed click :
https://brainly.com/question/19930939
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Free cookies Just answer this question! Elena solves the equation x^2=7x by dividing both sides by x to get 7. She says
the solution is 7. Lin solves the equation x^2=7 by rewriting the equation to get
x^2-7=0. When she graphs the equation x^2-7=0, the x-intercepts are (0,0) and
(7,0). She says the solutions are 0 and 7. Why should Elena not divide by x?
x could be equal to zero, and we can't divide by zero, so we shouldn't divide by x.
Why should Elena not divide by x?
Here we have the quadratic equation:
[tex]x^2 = 7x[/tex]
Notice that we don't know the value of x, so technically, x could be equal to zero, and we can't divide by zero, so we shouldn't divide by x.
The quadratic equation can be rewritten as:
x^2 - 7x = 0
x*(x - 7) = 0
(x - 0)*(x - 7) = 0
So the two solutions are x = 0 and x = 7, because x = 0 is a solution, we see that x can be equal to zero, so we can't divide by x.
If you want to learn more about quadratic equations:
https://brainly.com/question/1214333
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6. Which set of ordered pairs represents y as a function of X?
Select the correct answer from each drop-down menu.
A
m
D
G
F
с
B
FABERE, then line segment
is parallel to line segment
Reset
Next
Answer:
D-E is parallel to F-G which is parallel to B-C meaning all three are parallel
Step-by-step explanation:
If anyone plays pokemon go put your code in your answer and I will add you
that's not why this app is for
Answer:
i don't sorry! my friend does... let me see if i can get their code
Step-by-step explanation:
Help will give a crown AND 83 POINTS
Answer:
A is correct
Step-by-step explanation:
HELPPPP PLZZZZ
its ok khan academy
Answer:
2/3
Step-by-step explanation:
You rise up the y axis 2 times
and
you run/ go across the x axis 3 times
rise/run or y/x
find the slope pleaseee
Answer:
[tex]m=\frac{4}{5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Pick any 2 points from the chart.
Point (-5, -7)
Point (0, -3)
Step 2: Find slope m
Substitute: [tex]m=\frac{-3+7}{0+5}[/tex]Add: [tex]m=\frac{4}{5}[/tex]4s - 13 = 51 SHOW ALL WORK
Answer:
you have to get rid of the numbers and then get rid of the letters until only s is left
Step-by-step explanation:
4s - 13= 51
51+13= 64
4s= 64
64÷4 = 16
s= 16
For each representation of a relationship, determine if it is a function or not.
Explain how you know with your answer.
(Giving brainliest to first and correct answer)
Answer:
e is a function; f is not a function
Step-by-step explanation:
All functions must pass the vertical line test. this means that the when those points are plotted, no two points are on the same vertical line. You can tell if they are on the same vertical line by their x-coordinate. If two points have the same x-coordinate, then they are on the same vertical line. This means that the if two points have the same x-coordinate in the relationship, it is not a function. In e, the x-coordinates are 0, 4, 8, and 3. In f, the x-coordinates are 0, 4, 0, and 6. In e, all the x-coordinates are different, so it is a function. In f, however, 0 is a repeated x-coordinate, so it is not a function.
Find the value of the integral from 2 to 6 of the natural log of x, dx using four rectangles of equal width, with each right end-point used to find the height of each rectangle.
Answer: Choice B.
ln(3) + ln(4) + ln(5) + ln(6)
=======================================================
Explanation:
Refer to the diagram below. It shows four rectangles each of base 1. Their height varies depending on the output of the natural log function.
More specifically the heights are ln(3), ln(4), ln(5) and ln(6) from left to right. Note how this corresponds exactly to the points on the y = ln(x) curve such that they are the upper right corners of the Riemann Sum rectangles. These corner points are points A,B,C,D.
Since each base is 1 unit wide, this means each rectangle's area is equal to the height. More thoroughly, we say that
area = base*height = 1*f(x) = f(x), where x takes on the values from {3,4,5,6}
Side note: As the diagram shows, we have an overestimate of the actual area under the curve from x = 2 to x = 5.