Answer:
A and D
Step-by-step explanation:
Took test on Edg 2020 and was correct
Answer:
A: Estimate measurements to the nearest 0.05 cm.
D: Start all measurements from the zero (0) mark.
Study the patterns and write down :
(a) Row 5
(b) Row n
(c) Row (n+1)
Answer:
a) Row 5: 75 - 216 - 51
b) 3n² - (n+1)³ - (71-4n)
c) 3(n+1)² - (n+2)³ - (67-4n)
Step-by-step explanation:
Column 3:
Arithmetic sequence with common difference: 63-67 = -4
an = 67 + (n-1)(-4)
an = 67 - 4n + 4
an = 71 - 4n
Row 5: 3×5² - (5+1)³ - (71-(5×4))
Row 5: 75 - 216 - 51
Row n: 3n² - (n+1)³ - (71-4n)
Row n+1: 3(n+1)² - (n+1+1)³ - 71-4(n+1)
Row n+1: 3(n+1)² - (n+2)³ - (67-4n)
Answer:
Column 1
Tn= 3n²
row n= 3n²
row n+1= 3(n+1)²
When n=5,
T₅ = 3(5)²
T₅ = 75
Thus, row 5= 75
Column 2
Tn= (n+1)³
row n= (n+1)³
row n+1
= (n+1+1)³
= (n+2)³
When n=5,
T₅ = (5+1)³
T₅ = 6³
T₅ = 216
row 5= 216
Column 3
Notice that the terms decrease by 4 with each row.
This means that there is a common difference of -4.
Common difference formula
Tn= a +d(n-1)
where a is the first term and d is the common difference.
Tn= 67 -4(n-1)
Now, simplify the formula
Tn= 67 -4n +4
Tn= 71 -4n
Row n= 71 -4n
Row n+1
= 71 -4(n+1)
= 71 -4n -4
= 67 -4n
when n=5,
T₅= 71 -4(5)
T₅= 51
Row 5= 51
Row n is the general formula for the pattern. To find the n+1 row, susbt. n+1 into n in the formula in row n.
Each visit to a water park costs $19.95. An annual pass to the park costs $89.95. Write an inequality to represent the number of times you would need to visit the park for the pass to be a better deal. Use x for your variable. Do not use $ in the response PLS help
Answer: 19.95 x >89.95
Step-by-step explanation:
Hi, to answer this question we have to write an inequality using the information given:
The cost of each visit (x) is 19.95. That expression must be higher than the cost of the annual pass (89.95).
Mathematically speaking:
19.95 x >89.95
Feel free to ask for more if needed or if you did not understand something.
Answer:
what plus what equals 4/8what plus what equals 4/8what plus what equals 4/8what plus what equals 4/8what plus what equals 4/8what plus what equals 4/8what plus what equals 4/8what plus what equals 4/8what plus what equals 4/8
Step-by-step explanation:
Please help me! I really need it! Will award Brainliest+30 points!
Thanks!
Answer:
1023
Step-by-step explanation:
[tex]8^{0}[/tex] = 1, [tex]8^{\frac{1}{3} }[/tex] = [tex]\sqrt[3]{8}[/tex] = 2, [tex]8^{\frac{2}{3} }[/tex] = [tex]\sqrt[3]{8^2}[/tex] = 4, [tex]8^{1}[/tex] = 8
The series can be expressed in non exponent terms as
1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 + 512 ← 10 terms
There is a common ratio r between consecutive terms, that is
r = 2 ÷ 1 = 4 ÷ 2 = 8 ÷ 4 = .... = 2
This indicates the sequence is geometric with sum to n terms
[tex]S_{n}[/tex] = [tex]\frac{a(r^{n}-1) }{r-1}[/tex]
where a is the first term and r the common ratio
Here a = 1 and r = 2, thus
[tex]S_{10}[/tex] = [tex]\frac{1(2^{10}-1) }{2-1}[/tex] = 1024 - 1 = 1023
Zinnia and Ruby earn $58 per week for delivering pizzas. Zinnia worked for x weeks and earned an additional total bonus of $13. Ruby worked for y weeks. Which expression shows the total money, in dollars, that Zinnia and Ruby earned for delivering pizzas?
Answer:
x + y + 13
Step-by-step explanation:
I'm not really sure. I hope this helps!! :3
will mark as bianleast
Which is point (3, –5) on the graph?
G
H
J
K
Answer:
H is the point (3,-5) in the graph
Help PLEASE I AM GOING TO FAIL MY CLASS
Answer:
9. (-1,3)
11. (4,1)
Step-by-step explanation:
Hope it helped
Bella wants to know how tall the oak tree in her back yard is, so she picks
a point that is 75 feet away from the base of the tree. She measures the
angle of elevation to be 40° from this point to the top of the tree. To the
nearest tenth of a foot, how tall is
A-89.4 feet
B-62.9 ft
C-48.2 ft
D-57.5 ft
Answer:
B = 62.9ft
Step-by-step explanation:
The distance where she is from the oak tree is 75ft,
The angle of elevation the stone makes with the top of the oak tree is 40°
The height of the tree is x ft
See attached document for better illustration
Using SOHCAHTOA,
Tanθ = opposite/ adjacent
θ = 40°
Opposite = x ft
Adjacent = 75ft
Tan40 = x / 75
X = 75 × tan40
X = 75 × 0.8390
X = 62.92ft
The height of the oak tree is 62.9ft
I need help. This is hard for me. Please help
Answer: This is what I got -3.5 + 8.3 + (2/4 - 3) x 5*2 - 6.7
helpppppppppppppppppppppppppppppppppp
The 1st pic is D
The 2nd pic is 8 units
Susan's car is 4 yards long. Alexa's car is 16 feet long. When you line them up one in front of the other, how long are they together. Answer in feet
Answer:
28 feet long together
Step-by-step explanation:
in 1 yard there is 3 feet so in 4 yards it would be 3(4) which is 12. add 12 to 16 and you get 28
Answer:
28 feet
Step-by-step explanation:
A yard is 3 feet, so
4 yards*3 feet=12 feet.
12 feet+16 feet=28 feet
Check if your school has given you a conversion sheet to use. Some schools might also ask you to memorize it, but it's pretty simple. Hope this helps and good luck on your endeavours.
Plot the points (-8,7) and (5,7) on the coordinate plane below
Answer:
ok here you go
Step-by-step explanation:
i cant really plot them for you but i will help explain how to plot them.
the x-axis is the horizontal plane on the graph. the y-axis is the vertical plane on the graph. every coordinate has both a x and y point.
for you the x would be -8 and the y would be 7. first, you would go accross the x-axis to -8 and then go up to positive seven. you would be in the fourth quadrent in the graph. then you would do the same to the other pair. remember, (x,y)
Can a rational number be subtracted by a irrational number an equal a rational number?
Answer:
No
Step-by-step explanation:
The sum of a rational number and an irrational number is irrational.
What is the total surface area of the cone?
Answer:
≈522.92
Step-by-step explanation:
A= π r ( r+ [tex]\sqrt{h^{2} +r^{2} }[/tex])
Plug your givens in = π · 8 ·([tex]\sqrt{10^{2}+8^{2} }[/tex])
≈ 522.91806
Convert the weight from kilograms to grams. Write your answer in standard form.
8.3×10^−6 kg = ___ g
Answer:
83g
Step-by-step explanation:
Answer:
0.00829999999984360089 grams
Step by step
8.2999999998436e-6 converts to 0.00829999999984360089
Which problem can be shown using the equation 2x8=16
Answer: The second one, “A rabbit jumps 2 feet. A kangaroo jumps 16 feet. The kangaroo jumps 8 times as far as the rabbit
Answer:
the last one
Step-by-step explanation:
A rabbit jumps 2 feet. A kangaroo jumps 16 feet. The kangaroo jumps 8 more feet than the rabbit.
The box plots show Lauren’s chemistry scores and her biology scores. Chemistry 2 box plots. The number line goes from 50 to 100. For chemistry, the whiskers range from 55 to 90, and the box ranges from 60 to 85. A line divides the box at 80. For biology, the whiskers range from 50 to 90, and the box ranges from 60 to 80. A line divides the box at 70. Biology Lauren used the steps below to determine the differences in the medians and the interquartile ranges. Step 1 Find the median for chemistry: 80 Find the median for biology: 70 Step 2 Find the difference in the medians: 80 minus 70 = 10 Step 3 Find the interquartile range for chemistry: 85 minus 80 = 5 Find the interquartile range for biology: 80 minus 70 = 10 Step 4 Find the difference in the interquartile ranges: 10 minus 5 = 5 Lauren determined that the difference in the medians is greater than the difference in the interquartile ranges. Which explains Lauren’s error? Lauren made her first error in step 1 because the median is 85 for chemistry and 80 for biology. Lauren made her first error in step 1 because the median is 60 for chemistry and 60 for biology. Lauren made her first error in step 3 because she should have used 90 minus 55 = 35 for chemistry and 90 minus 50 = 40 for biology. Lauren made her first error in step 3 because she should have used 85 minus 60 = 25 for chemistry and 80 minus 60 = 20 for biology.
Answer:
Lauren made her first error in step 3 because she should have used 85 minus 60 = 25 for chemistry and 80 minus 60 = 20 for biology.
Step-by-step explanation:
Lauren's box plots may have looked like those below.
Step 1
Chemistry median = 80
Biology median = 70
Correct.
Step 2
Difference in medians = 80 - 70
Correct
Step 3
Chemistry IQR = 85 - 60 = 25
Biology IQR = 80 - 60 = 20
Wrong.
This is where Lauren made the mistake.
She was finding the difference between the Max and Q3.
Answer:
DStep-by-step explanation:
Solve for y
5x + y = -10
Answer:
y=-(x/5)-2
Step-by-step explanation:
5x + y = -10
y=-(x/5)-2
If x+y−z=8 and x−y+z=12, then x=
Answer:
x = 10
Step-by-step explanation:
We see and show that x = 10
This makes y = 5 and z = 7 as 5-7 (y-z) = -2
As y5-z7 = -2 then we add 10 = 8
x+y-z = 10x-2yz = 8
x-y+z = 10 -5 +7 = 12 we know x = 10
We cna now prove.
x+y-z =8
x+5y-7z = 8
x +-2yz = 8
x = 8+2yz
x= 10
And prove
(x-5y)+7z= 12
x-y =12-7z
x = 5+5y
x=10
as x-5 (=5+7z) = 12
Have got the right answer here. Hope it helps.
What is the value of y
Answer: y=54
Step-by-step explanation: since a triangles angles =180 and you just have this equation 180-72=2y that equals 108=2y
Answer:
The answer is B. 54 degrees.
Step-by-step explanation:
A triangle must be 180 degrees when all three angles are added together. 180 minus 72 is 108 degrees, which you have to divide by two, because there are two y values.
You can check this by adding 72 plus 54 plus 54 to get 180 degrees total.
Need help with this pls
Show work pls!!
Answer: 9.2
Step-by-step explanation:
Answer:
9.2
Step-by-step explanation:
Hoped this helped!
Tyler simplified the expression x Superscript negative 3 Baseline y Superscript negative 9. His procedure is shown below.
x Superscript negative 3 Baseline y Superscript negative 9 = StartFraction 1 Over x cubed EndFraction times StartFraction 1 Over y Superscript negative 9 EndFraction = StartFraction 1 Over x cubed y Superscript negative 9 EndFraction
What is Tyler’s error?
Both powers should be in the numerator with positive exponents.
Both powers should be in the denominator with positive exponents.
The power x cubed should be in the numerator and the power y Superscript 9 in the denominator.
The power y Superscript 9 should be in the numerator and the power x cubed in the denominator.
Answer:
D. The power y Superscript 9 should be in the numerator and the power x cubed in the denominator.
Step-by-step explanation:
The correct simplification is the following:
[tex]\frac{x^{-3}}{y^{-9}} = [/tex]
[tex]= \frac{1}{x^3} \times \frac{1}{y^{-9}} =[/tex]
[tex]= \frac{1}{x^3} \times y^{9} =[/tex]
[tex]= \frac{y^{9}}{x^3}[/tex]
Answer:
The answer is D)
Start Fraction 1 Over r Superscript 7 Baseline End Fraction + Start Fraction 1 Over s Superscript 12 End Fraction
Step-by-step explanation:
Did the Test Zero & Negative Exponents on Engenuity.
answer need FAST plz.
Answer:
-5
Step-by-step explanation:
5*-5=-25
5*1=5
A negative plus positive decreases in value
so -25+5=-20
URGENT
The volume of a sphere with a radius of 5 cm is approximately _[blank]_ cm3.
Enter the value that correctly fills in the blank in the previous sentence.
Use 3.14 for π, and round your answer to the nearest hundredths place if necessary.
Answer: The volume of a sphere with a radius of 5 cm is approximately 523.33 cm3.
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume of a sphere (V) = 4/3 π radius³
Replacing with the values given and solving for V (volume)
V = 4/3 (3.14) 5³ = 4/3 (3.14) 125= 523.33 cubic centimeters
The volume of a sphere with a radius of 5 cm is approximately 523.33 cm3.
Feel free to ask for more if needed or if you did not understand something.
2x + 3y = 6
x y
0 2
3 0
A line is described using the equation 2x + 3y = 6. The table lists the coordinates of two points on the line, the y-intercept and the x-intercept. Find the slope of this line.
A) The slope is 2.
B) The slope is 3.
C) The slope is −3/2
D) The slope is −2/3
Answer:
D)The slope is -2/3
Step-by-step explanation:
First, put this equation in slope-intercept form by subtracting 2x on both sides:
2x+3y=6
-2x. -2x
Your equation should be:3y=-2x+6
Then, divide the whole equation by 3 since y has to be by itself
3y=-2x+6
---- ------
3. 3
Your equation should be y=-2/3x+6
Since the slope in slope-intercept form is m in y=mx+b, -2/3×=m
Final answer:D) The slope is -2/3
Evaluate |15-15|
If you could also explain it to me I’d appreciate.
your answer is 0
Step-by-step explanation:
nanette installed a security system in her office for $150. the monthly monitoring fee is $30. so far, nanette has spent $420 for her security system. for how many months has she had the service?
Answer:
9 months.
Step-by-step explanation:
Well we subtract the one time fee of $150 from $420
420-150=270
Now we need to divide $270 by $30, the price she pays every month.
270÷30=9
She has had the service for 9 months.
When choosing an alternative to using credit, you can______________________________ a. take advantage of sale prices. c. borrow from a friend. b. pay with your savings. d. apply for a loan.
Pay with your savings because you can save money until you have enough to pay for something.
Which of the following is a parent function?
Answer:
D
Step-by-step explanation:
D is a parent function because it is in the form of [tex]y=x^{2}[/tex]. Normal functions have the equation [tex]y=ax^2+bx+c[/tex].
Witch of the following is an example of conditional statement? A. I have to wear rain boots when it rains. B. Grass grows after the rain. C. If it rains, then the ground gets wet. d. The ground is wet after the rain.
Answer: C. If it rains, then the ground gets wet.
Step-by-step explanation:
A conditional statement in math is a statement in the if-then form.
If ABCD were reflected across the x-axis, A' would be located at (1,4).
True
False