Answer:
Step-by-step explanation:
The 15 cm by 15 cm piece of cardboard area = 225 cm².
A cube has six congruent faces. If each edge is 5 cm, the surface area is 6×5² = 150 cm². So there is enough cardboard to make a cube, but not by folding. You'd have to do some cutting and taping.
Which ordered pair is a solution to the system of inequalities? y > 2x
y > 7
A. (0, 0) B. (4, 8) C. (3, 7) D. (1, 9)
Answer:
D( 1,9)
Step-by-step explanation:
First y must be greater than 7 which eliminates A and C
y must be greater than 2 times the x value
2*4 = 8 so B is eliminated
2*1 = 2 which is less than 9 Choice D is a solution
A card is drawn from a well shuffled deck of 52 cards what is the probability of drawing an ace or a six
Answer:
8/52
Step-by-step explanation:
The first thing to do is write it out;
How many aces are in a deck and how many sixes?
There are 4 of each so, 4+4 = 8 therefore our beginning ratio will be;
8/52 cards are going to be an ace or a six.
Nhà trường muốn đánh giá tỉ lệ chăm học của sinh viên (trong một tuần). Khảo sát 236 sinh viên thì thấy có 32 sinh viên chăm học. Hãy ước lượng khoảng đối xứng cho tỉ lệ sinh viên chăm học của trường với độ tin cậy 95%
Answer:
can't understand the language
Melissa, Brian, and shen have a total of $85 in their wallets. Brian has 3 times what Shen has. Shen has $10 less than Melissa. How much do they have in their wallets?
Answer:
Shen has $15, Brian has $45, and Melissa has $25
Step-by-step explanation:
Let x represent how much money Shen has.
Since Brian has 3 times what Shen has, his amount can be represented by 3x.
Since Shen has $10 less than Melissa, Melissa's amount can be represented by x + 10.
Create an equation to represent the situation, and solve for x:
x + 3x + x + 10 = 85
5x + 10 = 85
5x = 75
x = 15
So, Shen has $15 in their wallet.
Find how much Brian has by multiplying this by 3:
15(3) = $45
Find how much Melissa has by adding 10 to this:
15 + 10 = $25
Shen has $15, Brian has $45, and Melissa has $25.
Help needed!!!
Find the length of the segment indicated.
A. 12.1
B. 16.4
C. 13.3
D. 11.4
Answer:
A
Step-by-step explanation:
using the theorem of Pythagoras
x = sqrt* 19.6 ^2 - 15.4^2*
x = 7× sqrt* 3*
x = 12.1 units
Answer:
A.) 12.1
Step-by-step explanation:
I got it correct on founders edtell
The vertical motion of a mass attached to a spring is described by the given initial-value problem. 4x " + x' + x = 0, x(0) = 8, x'(0) = 4
Determine the maximum vertical displacement of the mass. (Round your answer to three decimal places.)
Answer:
m = 4
k = 25.56
b = 20
The differential equation for damping motion is:
where,
Substitute the values in the differential equation and consider x" = r², x' =r and solve:
Therefore, solution is given by:
at t = 0, x = 1
at t = 0
x' =0
Step-by-step explanation:
About 10% of 8900 commuters carpool to work. Find the number of commuters who carpool.
How many commuters carpool?
Answer: 890 commuters carpool
Step-by-step explanation:
10% of 8900 = 890
8900/10= 890
Note: 10% to decimal form is 10
Answer:
10% of 8900
10/100×8900
=890
hope this is helpful
58. In nine given numbers, the average of first five numbers is 20 and that of the last five numbe also 20. If the average of mine numbers is 16. what is the fifth number?
When it was built, the given stadium held 31,080 fans per game. Today, it holds 86,047. How many more fans could attend per year (12 games) compared to the year it was built?
Answer:
659604 students
Step-by-step explanation:
86047-31080=54967 more students per game
54967 students per game x 12 games = 659,604 students
State the additional congruency statement t(s) needed to prove triangle ABC cong triangle FGH for the given theorem A.SAS Theorem B.ASA theorem
Answer:
part a:
AC=HF (Given)
angle BAC= angle GFH (Given)
ans: BA=GF
part b:
Angle BAC= angle GFH (Given)
AC=HF (Given)
ans: Angle BCA = Angle GHF
Or
AngleABC = Angle FGH
This one is confusing
Answer:
it s just asking for negative d
Step-by-step explanation:
Answer:
D(-1) = 2
Step-by-step explanation:
replace x with D(x), which in this case is -1
D(x) = x²-2x-1
replace x with -1
D(x) = (-1)²-2(-1)-1
Now solve using PEMDAS
Look at the image for the question?
Answer:
Surface area = the sum of the area of all six sides:
(11 · 10) + (11 · 10) + (11 · 8) + (11 · 8) + (8 · 10) + (8 · 10)
= 110 + 110 + 88 + 88 + 80 + 80
= 220 + 176 + 160
= 556 ft²
Answer:
556 ft^2
Step-by-step explanation:
The surface area of a rectangular prism is
SA = 2(lw+wh+lh) where h is the height l is the length and w is the width
SA = 2( 11*10+10*8+11*8)
= 2(110+80+88)
=2(278)
=556 ft^2
on the same graph draw line 2y-x=10 and y=3x
Answer:
Step-by-step explanation:
3. Using the identity (a + b)² = (a² + 2ab + b²), evaluate 122²
.....
plz it's request to do answer fast and I will make him or her brainlist
[tex]\\ \sf\longmapsto 122^2[/tex]
[tex]\\ \sf\longmapsto (100+22)^2[/tex]
[tex]\\ \sf\longmapsto 100^2+2(100)(22)+22^2[/tex]
[tex]\\ \sf\longmapsto 10000+4400+484[/tex]
[tex]\\ \sf\longmapsto 14400+484[/tex]
[tex]\\ \sf\longmapsto 14884[/tex]
112²
Using Identity(a + b)² = (a² + 2ab + b²)
Solution⇛122²
⇛(100 + 22)²
⇛(100)² + 2 × 100 × 22 + (22)²
⇛10000 + 4400 + 484
⇛14400 + 484
⇛14884
Last month a factory produced 800 television sets. This month the same factory produced 1064 television sets. What percent did production increase?
Answer:
33%
Step-by-step explanation:
Increase is equal to (1064-800)
=264
So the percent = (264/800)×100
=33%
The factory's output went up by around 33% from last month to this month, reflecting a significant growth in television set production.
To calculate the percentage increase in production, we use the concept of percentage change.
The formula for percentage change is = [(new value - old value) / old value] × 100,
In this case, the old value is 800 (last month's production) and the new value is 1064 (this month's production).
The percentage increase in production can be calculated as follows:
[(1064 - 800) / 800] × 100 = (264 / 800) × 100 ≈ 33%.
Therefore, the production increased by approximately 33%.
Learn more about Percent here
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if k = p+2q/3 , find the value of p when k=7 and q=3
Answer:
k = p+2q/3
Step-by-step explanation:
k=7 and q=9
7 = p+(2*9)/3
7 = p+18/3
7 = p+6
7-6 = p
1 = p
Hope it helps!
Hope it's help you!!!! Have a good day/night
A car travels 12 km in 15 minutes.
Work out the average speed of the car in km/h.
Step-by-step explanation:
s=12km t=15m
15m--> km= 15/60= 0,25h
V=s/t
V=12km/0,25h
V= 48 km/h
Evaluate f(g(3)) if f(x)=6x−4 and g(x)=x2.
(Please Explain! Thank you)
Answer: 50
Step-by-step explanation:
f(x) = 6x-4 and g(x) = x^2
f(g(3)) means what is the value of the function f when it is evaluated at the value of g(3).
So g(x) is x^2 so g(3) is 3^2 = 9
Therefore we put 9 in for f(g(3))= f(9) = 6(9) - 4 = 54 - 4 = 50
Find the value of x.
Answer:
[tex]here \: the \: two \: sides \: are \: equal \: so \: \\ the \: triangle \: is \: issosceles \\ then \: x = 40 \\ thank \: you[/tex]
From the observation deck of a skyscraper, Isabella measures a 67
angle of depression to a ship in the harbor below. If the observation deck is 824 feet high, what is the horizontal distance from the base of the skyscraper out to the ship? Round your answer to the nearest tenth of a foot if necessary.
The horizontal distance from the base of the skyscraper out to the ship is 349.8feet
Angle of elevation and depressionThe angle situated above the hill is known as the angle of depression
Given the following parameters
Height of the harbor = 824 feet
Angle of depression = 67degrees
According to SOH CAH TOA identity:
tan 67 = opp/adj
tan 67 = 824/d
d = 824/tan67
d = 349.8 feet
Hence the horizontal distance from the base of the skyscraper out to the ship is 349.8feet
Learn more on angle of depression here: https://brainly.com/question/12483071
For a $1,000 loan at a rate of 16 3/4 % for 5 years, the simple interest is
Answer:
$837.50
Step-by-step explanation:
(1000×16.75×5)/100
83750/100=
$837.50
Which condition must exist in order for conduction to occur between two substances? The molecules of the substances must be touching. Both substances must be the same temperature. At least one substance must be a liquid. Most of the molecules must be slow moving.
Answer:
The molecules of the substances must be touching
FOR EXAMPLE, a metal spoon placed in a hot coffee mug shows the flow of heat from coffee to the spoon. and now we can conclude that a condition that must exist in order for conduction to occur between two substances is that the objects must be touching each other.
Answer:
The molecules of the substances must be touching.
A
Step-by-step explanation:
2y-x=6 and y=2x+7 graphed equals how many solutions
Answer:
One solution
BRAINLIEST, PLEASE!
Step-by-step explanation:
2y - x = 6
2y = x + 6
y = x/2 + 3
y = 2x + 7
After graphing, they have one solution at (-2.667, 1.667).
What is the sum of the interior angles of a regular polygon with 5 sides?
A. 1260
B. 180
C. 360
D. 540
Answer:
540 is the ans
Step-by-step explanation:
this is the correct answer
180
Step-by-step explanation:
the measure of interior angles of polygon =180×(n-2)
A car dealership is advertising a car for $16,299.99. If the sales tax rate is 6.5 percent, what
is the total tax paid for the car?
A. S993 34
B. $1.000.00
CS1.059 50
DS1.359.19
Answer:
C. 1059.50
Step-by-step explanation:
Sales price x sales tax rate = sales tax
16299.99 x .065 (6.5%) = 1059.50
The work shows how to use long division to find?
Answer:
remainder = [tex]\frac{1}{x-2}[/tex]
Step-by-step explanation:
The remainder is the value of the subtraction of the last 2 lines in the procedure.
5x - 9
- (5x - 10)
That is
5x - 5x = 0 and - 9 - (- 10) = - 9 + 10 = 1
over the divisor x- 2 , gives
remainder = [tex]\frac{1}{x-2}[/tex]
Find the slope of the line containing the points (2, 7) and (-5, -4).
the answer is 11/7.you can see the image
Answer:
[tex]\boxed {\boxed {\sf \frac{11}{7}}}[/tex]
Step-by-step explanation:
The slope describes the direction and steepness of a line. The formula is:
[tex]m= \frac{y_2-y_1}{x_2-x_1}[/tex]
Where (x₁, y₁) and (x₂, y₂) are the points the line contains. For this problem, the line contains the points (2,7) and (-5, -4). Therefore:
x₁= 2 y₁ = 7 x₂ = -5 y₂ = -4Substitute these values into the formula.
[tex]m= \frac{ -4 -7}{-5-2}[/tex]
Solve the numerator (-4 -7 = -11).
[tex]m= \frac{ -11}{-5-2}[/tex]
Solve the denominator (-5-2 = -7).
[tex]m= \frac{ -11}{-7}[/tex]
Simplify the fraction. The 2 negative signs cancel each other out.
[tex]m= \frac{11}{7}[/tex]
The slope of the line is 11/7
Most brainiest for the right answer on this problem!
Answer:
82.8
Step-by-step explanation:
mean = sum of all points, over the total given number of points
84 * 26 = 2184
2184 + 69 + 66 = 2319
Now the total number of tests is 26 + 2 or 28
So divide 2319 by 28
2319/28 = 82.82142
rounded to the nearest tenth is 82.8
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Find the missing side or angle round to the nearest tenth b=15 a=30 c=29 A=[?]°
Answer: 79
Step-by-step explanation:
i just did it on acellus and its right
a string of length 60 cm is used to form two equal circles. what wil the total circumference of the two equal circles ?
Answer:
Step-by-step explanation:
I don't know what other answer there could be but 60 cm. The circles have to have the same radius and the same circumference. They were made from a 60 cm string so their total must be 60 cm.
Is there a trick I don't see? Hope not?
