Does anyone know why I only got 2/3 marks, and can you explain how to get 3 marks. Thank you :)
Answers
Answer:
The reason is likely because of an unit error of centimetres square (cm²) which is to be in metres square (m²)
Step-by-step explanation:
The units of the length is in meters, and the side length, S, of the cube is S = 0.7 m, therefore, the answer is to be given as follows;
The surface area of one face of the cube = S² = (0.7 m)² = 0.49 m²
The number of faces in a cube = 6, therefore, we have;
The surface area of the cube = 6 × The surface area of one face of the cube
The surface area of the cube = 6 × 0.49 m² = 2.94 m²
Therefore, the surface area of the cube is 2.94 m² (m² not cm²)
Related Questions
Find the sum.
4/5r+10/3r
Answers
Answer:
i hope this helps
Step-by-step explanation:
PLS PLS HELP ME I WILL MARK BRAINLIEST
Answers
Answer:
A, 4 + 12i
Step-by-step explanation:
Write an equation in slope-intercept form thats perpendicular to the given line and goes thru the point.
1. y=-3x + 4 (6,-2)
2. -2x -8y = 16 (4,5)
3.. x+y= 2 (8,5)
(PLS HELP ME I NEED THE ANSWER RIGHT NOW ITS URGENT)
Answers
Answer:
steps below
Step-by-step explanation:
1. y=-3x + 4 (6,-2)
y' slope: 1/3 (perpendicular)
y' = mx + b
b = y' - mx = -2 - (1/3) x 6 = -4
equation: y' = 1/3 x - 4
2. -2x -8y = 16 (4,5)
8y = -2x - 16 y = -1/4 x - 2
perpendicular line slope: 4
b = y - mx = 5 - 4 x 4 = - 11
equation: y = 4x - 11
3. x+y= 2 (8,5)
y = -x + 2 slope: -1
perpendicular slope: 1
b = y - mx = 5 - 1 x 8 = -3
equation: y = x -3
p\left(x\right)=x^{3}+6x^{2}+5x-12
Answers
Answer:[tex]P\left(x\right)=x^{3}+6x^{2}+5x-12[/tex]
Step-by-step explanation:
That is what she means! I don't know what you're asking but this may help the people that want to answer this question. :)
10 less than a number squared is 71
Answers
Hope this helps
Have a great day/night
Can someone help me out with this
Answers
Answer:
b 6"
Step-by-step explanation:
because l is 3" and H" is the same so it is b
Cynthia invests some money in a bank which pays
5% compound interest per year.
She wants it to be worth over £8000 at the end of 3 years.
What is the smallest amount, to the nearest pound, she can invest?
Answers
Answer: £6910.7
Step-by-step explanation:
Given
Rate [tex]R=5\ \%[/tex]
Amount [tex]A=[/tex]£[tex]8000[/tex]
Time [tex]T=3\ years[/tex]
In compound interest, the Amount is given by
[tex]A=P[1+\frac{R}{100}]^T[/tex]
[tex]8000=P[1+\frac{5}{100}]^3[/tex]
[tex]P=\dfrac{8000}{1.1576}[/tex]
[tex]P=[/tex]£[tex]6910.7[/tex]
Y= -0.5x+5 3x+5y=2 what’s the answer
Answers
Answer:
x = -46
Step-by-step explanation:
Y= -0.5x+5
3x+5y=2 [replace the "y" in this problem with the what "y" equals above]
3x + 5( -0.5x + 5) = 2
3x + -2.5x + 25 = 2
0.5x = -23
x = -46
Evaluate 7j+5−8k j=0.5 k=0.25,
Answers
Answer:
Evaluate 7j+5-8k when j=0.5 and k=0.25 Get the answers you need, now!
2 answers
Step-by-step explanation:
Answer:
6.5
Step-by-step explanation:
(7*0.5)+(5)-(8*0.25)
PEMDAS
Multiply 7 and 0.5= 3.5
Multiply 8 and 0.25= 2
3.5+5-2
Add 3.5 and 5= 8.5
Subtract 8.5 and 2= 6.5
Keiko drank 18 fluid ounces of juice. How much is this in cups?
Answers
Answer:
2 1/4
Step-by-step explanation:
18 fl oz= 2 1/4 or 2.25 cups
✨Help please it’s emergency I will mark you as brainlist ✨
Answers
Answer:
I believe the answer is A
Step-by-step explanation:
What is the slope of the line?
Answers
Answer:
zero slope
Step-by-step explanation:
the equation of line r is y= -7/2x + 3. line s is parallel to line r. what is the slope of line s?
Answers
Answer:
m = -7/2
Step-by-step explanation:
If two lines are parallel, they have the same slope. The slope of r is -7/2 (y=mx+b), so the slope of r is also -7/2.
Li Juan solves the equation below by first squaring both sides of the equation.
13 - 2w = w + 6
What extraneous solution does Li Juan obtain?
will give 36 points HURRY PLEASE
Answers
Answer:
Step-by-step explanation:
(13-2w)^2 = 169 - 52w + 4w^2
(w+6)^2 = w^2 + 12w + 36
Setting them equal:
169 - 52w + 4w^2 = w^2 + 12w + 36
3w^2 - 64w + 133 = 0
Using the quadratic formula, we get
x = (64 +/- sqrt(64^2 - 4*3*133))/6
64^2-12*133 = 2500. sqrt(2500) = 50.
x = (64 +/- 50)/6.
x = 19 or 14/6 = 7/3.
Solving the original equation:
7 = 3w.
w = 7/3.
Therefore 19 is extraneous.
x = 19 is the extraneous solution Li Juan obtained.
The given equation is 13 - 2w = w + 6.
We need to solve the equation by squaring both sides of the equation.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Now, 13 - 2w = w + 6 squaring both sides of the equation.
That is, (13-2w)²= 169 - 52w + 4w²
(w+6)²= w²+ 12w + 36
Setting them equal, we get
169 - 52w + 4w² = w² + 12w + 36
⇒3w²- 64w + 133 = 0
Now, using the quadratic formula, we get
x = (64±√(64² - 4×3×133))/6
⇒x = (64±√2500)/6.
⇒x = (64±√50)/6.
⇒x = 19 or 14/6 = 7/3.
Solving the original equation, we get
7 = 3w⇒w = 7/3
Therefore, x = 19 is the extraneous solution Li Juan obtained.
To learn more about an equation visit:
https://brainly.com/question/1529522.
#SPJ5
(8x + 31) (16x - 9) whats the value of x?
Answers
Answer:
31
Step-by-step explanation:
31 weather hgrfgrrv rtgfrh rtbffh thgg thgt
Answer:
31
Step-by-step explanation:
Sorry if you can’t read it but u wasn’t paying attention in online class and I missed this out and soz if it’s blurry! 95 point in return
Answers
Answer:
the answer is at the bottom
Step-by-step explanation:
please mark me as brainliest<3
answer is attatched
Please help!! I'll give brainleist
Jordan works for a landscape company during his summer vacation. He is paid $12 per hour for mowing lawns and $14 per hour for planting gardens. He can work a maximum of 40 hours per week, and would like to earn at least $250 this week. If m represents the number of hours mowing lawns and g represents the number of hours planting gardens, write a system of inequalities that could represent the given conditions.
Answers
Answer:
m + g < 40
12m + 14g > 250
Step-by-step explanation:
Given : Jordan is paid $12 per hour for mowing lawns and $14 per hour for planting gardens.
Let m represents the number of hours mowing lawns and g represents the number of hours planting gardens.
He can work a maximum of 40 hours per week, and would like to earn at least $250 this week.
Then, the system of the inequality becomes
m + g < 40
12m + 14g > 250
Evaluate the following expression.
Answers
Answer:
3
Step-by-step explanation:
2 + (9/ 3) ^ 2 / 9
2 + 3^2/9
2 + 3*3 / 9
2 + 9/9
2 + 1
3
Hope this helped!
Answer:
11
Step-by-step explanation:
Following the order as set out in PEMDAS ( parenthesis, exponents, multiplication, division, addition, subtraction )
evaluating parenthesis gives
2 + [tex]3^{4}[/tex] ÷ 9 ← evaluate exponent
= 2 + 81 ÷ 9 ← evaluate division
= 2 + 9 ← evaluate addition
= 11
Both numbers are greater than -15 and less than 5. One number is 6 greater than the other.
Answers
Answer:
-14 -8
Step-by-step explanation:
Answer
-14,-8
i did this on ttm and got it correct
Mr. Brown made 5 trips to the sushi bar. On his first trip, he got 14 pieces of sushi. On his second trip, he got 12 pieces of sushi. On his third trip, he got 22 pieces of sushi. On his fourth trip he got 8 pieces of sushi. On his final trip, he got 24 pieces of sushi. What was the average (use the mean) number of pieces of sushi he got on each trip to the sushi bar?
Answers
Answer: 16 pieces.
Step-by-step explanation:
Suppose that we have a set with N numbers
{x₁, x₂, x₃, ..., xₙ}
The mean of this set is calculated as:
M = (x₁ + x₂ + x₃ + ... + xₙ)/N
In this case, our set is:
{14, 12, 22, 8, 24}
So we have N = 5.
The mean of this set will be:
M = (14 + 12 + 22 + 8 + 24)/5 = 16
The average/mean number of pieces of sushi he got on each trip is 16 pieces.
Find the zeros of the quadratic function
Answers
Step-by-step explanation:
the answer of the question above is
a=0
b=6
c=4
Under what conditions is a trinomial said to be completely factored?
Answers
Answer:
We say that a polynomial is factored completely when we can't factor it any more. Here are some suggestions that you should follow to make sure that you factor completely: Factor all common monomials first. Identify special products such as difference of squares or the square of a binomial.
Step-by-step explanation:
can you mark brainliest yes thanks you the best
Hereee +13 points + the star
Answers
there are 63 students on the bus with a ratio of 2 girls to 5 boys. How many boys are on the bus?
45
18
7
35
Answers
Answer:
45
Step-by-step explanation:
2x+5x=63
7x=63
x=9
number of boys =5×9=45
What is the interquartile range of the date shown in the box plot
Answers
Answer: 14
Step-by-step explanation: To find the Interquartile Range (IQR) you need to subtract points Q1 from Q3. The ends of the box are the Q1 and Q3 points.
Q3 = 80
Q1 = 66
80-66= 14
what is the solution to the equation? t-15=76
Answers
Answer:
t=91
Step-by-step explanation:
WILL GIVE BRAINLIEST!!!!!!!!!!
A sandcastle can be modeled with four 6-inch-tall square prisms, one on top of the other, as shown in the figure below.
The base of the bottom prism has a side length of 30 inches, and the base of each of the other three prisms has a side length 7 inches less than the side length of the base of the prism below it. What is the volume of the sand castle?
Answers
Answer:
A 2808
Step-by-step explanation:
From top to bottom
The top one is 9
Second layer is 16
Third is 23
Bottom is 30
I did 9 x 6, 16 x 6, 23 x 6, 30 x 6 = 54, 96, 138, 180
Added all of them up and got 468 then I times it by 6 and got 2808
Heyo! ;D
The volume of the sandcastle above is 10,596 cubic inches.
Hope this helped! If so, please lmk! Tysm and good luck!
Peggy was taking a timed 50-question test. She was able to correctly answer 60% of the questions but had to skip the rest. How many questions did Peggy answer correctly?
Answers
Answer:
30 questions
Step-by-step explanation:
60% or 0.60 x 50 questions = 30
Use the expression 4/3 plus 8 -9/y to find an example of each kind of the expression
Answers
Answer:
The answer is:
Quotient: 9/y
Sum: 4(3) +8
Variable is: y
Step-by-step explanation:
A quotient is the result of a division problem.
The expression 9/y represents a quotient.
A sum is the result of an addition problem.
The 4(3) + 8 represents a sum.
A variable is a letter that stands for an unknown quantity.
Y is a variable
I hope this helped you out!! :D
Answer:
Quptient: 9/y
Sum: [tex]4^{3}[/tex]+8
Variable: 7
Step-by-step explanation:
A quotient is the result of a division problem.
the expression 9/y represents a quotient
A sum of an addition problem.
The expression [tex]4^{3}[/tex]+ 8 represents a sum.
A variable is a letter that statnds for a unknown quatily
y is a variable.
The correct answers are:
Kind of expressions: Example:
Quptient: 9/y
Sum: [tex]4^{3}[/tex]+8
Variable: 7
Two bags contain marbles. Bag A contains 112 marbles, and Bag B contains 140 marbles. What percent fewer marbles does Bag A have than Bag B?
Answers
Answer:
20%
Step-by-step explanation:
sorry if i am wrong