Answer:
Step-by-step explanation:
It's B.
Let's rewrite the expression like this :
2x+y=12 ⇒ y=12-2x
and try given values for x :
if x=4 ⇒ y=12-(2×4)=12-8=4 ( so it is not 2 ) ⇒ wrong if x=3 ⇒ y=12-(2×3)=12-6=6 (it is 6) ⇒ right if x=8 ⇒ y=12-(2×8)=12-16=-4 (so it is not -1) ⇒ wrong if x=0 ⇒ y=12-(2×0)=12-0=12 (so it is not 6) ⇒ wrongCan someone help me please
I have to show work
Find the surface area of the rectangular prism shown. Draw a net to help you.
2(6*9) + 2(6*5) + 2(5*9)
Surface Area = 258 units
*IG: whis.sama_ent
Solve the side angel for x.
Answer:
x=80
Step-by-step explanation:
a^2+b^2=c^2
48^2+64^2=x
2304+4096=x
6400=√x
√ to get x alone
80=x
HURRY 50 POINTS
What is the height of a cylinder with a radius of 3 and a volume of 189?
Answer:
6.68 units (2 d.p.)
Step-by-step explanation:
The formula for the volume of a cylinder is:
[tex]\boxed{V=\pi r^2 h}[/tex]
where:
V is the volume.r is the radius of the circular base.h is the height.Given values:
V = 189 cubic unitsr = 3 unitsTo find the height of the cylinder, substitute the given values into the formula and solve for h:
[tex]\implies 189=\pi \cdot 3^2 \cdot h[/tex]
[tex]\implies 189=9\pi \cdot h[/tex]
[tex]\implies \dfrac{189}{9 \pi}=\dfrac{9\pi \cdot h}{9 \pi}[/tex]
[tex]\implies \dfrac{189}{9 \pi}=h[/tex]
[tex]\implies h=6.6845076...[/tex]
Therefore, the height of a cylinder with a radius of 3 units and a volume of 189 cubic units is 6.68 units (2 d.p.).
Answer:
h≈6.68
Step-by-step explanation:
6.68 is the height of a cylinder with a radius of 3 and a volume of 189
....................
Find the value of c that will make the following two expressions equivalent.
2a+10b-8-2(4a-6) and -6a+20b+c
You and a friend race each other. You give your friend a 50-foot head start. The distance y (in feet) your friend runs after x seconds is represented by the linear function y=14x+50 . The table shows the distances you run.
Time (seconds) x : 2, 4, 6, 8
Distinct (feet) y : 38, 76, 114, 152
A: write a linear equation that relates to your speed?
B: How long will it take for you to catch your friend?
A. (76-38)/4-2=19 --> m=19
finding b:
y=19x+b
38=19(2)+b
38-38=0
b=0
Linear equation: y=19x
B.
Set the two equation equal to each:
19x=14x+50
5x=50
x=10
It would take you 10 seconds to catch up to your friend :)
The owners of a company are hosting a party for its 453 employees. They want to order sandwich platters that each feed 24 people. What is the LEAST number of platters the owners should order if they want to have enough sandwiches to feed all of the employees?
Answer:
19 Platters
Step-by-step explanation:
453 ÷ 24 = 18.875
Rounded to the nearest whole number = 19
∴ It would take at least 19 platters
Proof:
19×24=456
Which is more that enough
Alex painted 178 ft2 of his 1/3 apartment's walls with gallon of paint. He has 2 gallons of paint in all. If he wants to cover 1,000 f2 of his apartment, does he have enough paint? Complete a true statement.
2 gallons of paint will cover
A. 968
B. 996
C. 1,068
f2 and Alex needs to cover 1,000 f2 so he
D. will
E. will not
have enough paint.
Answer:
Step-by-step explanation:1 gallon of paint paints 1/3 of the house and he had already painted 1/3 of the house with 1 gallon of paint. so the left is 2/3 of the house. and 2 gallon of paint paints 2/3 of the house so,2/3=2/3 which means D. he will cover 1,000 f2 of his apartment.
Please help and you get a cake
Answer:
Mean = 33.7
Median = 34.5
Mode = 34
Range = 33
After adding 26....
mean decreases by 0.7
median decreases by 0.5
mode is 34
range is 33
Step-by-step explanation:
mean = sum of all the data values/number of data values
= (18 + 19 + 20 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/10
= 337/10
= 33.7
To find median arrange the values in increasing order, find the mid value
If the number of data points is even, find the average of the mid 2 data values
Arranging data values we get:
18, 19, 20, 34, 34, 35, 37, 42, 47, 51
Since there are 10 data values, take the average of the middle two:
(34 + 35)/2 = 34.5
The mode is the value that occurs most often. We see that there are two instances of 34 whereas the other values appear only once
Mode = 34
The range is highest - lowest = 51 - 18 = 33
After we add 26, we get the following data set arranged
18, 19, 20, 26, 34, 34, 35, 37, 42, 47, 51
we can calculate the stats using the same technique as above
We get the following values
mean = )(18 + 19 + 20 + 26 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/11
= 33
median = 34
mode = 34
range = 51-18 = 33
To find the decrease in mean and median subtract from the first set of values
44 PTS HELP ME PLEASE I NEED THIS ASAP ITS 6 PM IVE BEEN WORKING SINCE 11 AM Which properties were used to simplify the following expression? Select all that apply.
4 + 3(9 + 2)
4 + (3 × 9) + (3 × 2)
4 + 27 + 6
4 + 6 + 27
10 + 27
37
associative property of addition
identity property of addition
identity property of multiplication
associative property of multiplication
commutative property of multiplication
commutative property of addition
distributive property
Answer:
Distributive and associative
Step-by-step explanation:
In step 2 there is distributive property
From: 4 + 3(9+2)
To: 4+ (3x9) + (3x2)
In step 4 there is associative property.
From 4 + 27 + 6
To 4 + 6 + 27
PLS HURRY Which of the following number sentences is an example of the associative property? Select all that apply.
Answer: 1st and 3rd options.
Step-by-step explanation:
The associative property is ax(bxc)=(axb)xc
So the first option is merely moving the parentheses around. This is associative.
The second option is distributive. Do not pick this option.
The 3rd option is also moving parentheses around. This is associative.
The fourth option is identity property of multiplication (anything x 1 is iteself). Don't pick this option.
Answer:
1st and 3rd ones
PLEASE HELP I'M ALMOST DONE
please help (worth 10 points)
Answer:
3) CAD 160
4) CAD 163.20
Step-by-step explanation:
Q3) CAD 1= USD 0.75 OR 75 CENTS
X=USD 120
X= (120x1)/0.75
=CAD 160
Q4) 100%= CAD 160
100%+2%=y
y= (102x160)/100
= CAD 163.20
The diameter of the cracker shown is 35 millimeters.
Which measurement is closest to the area of the cracker in square millimeters?
A 781.751 mm²781.751 mm²
B 109.9 mm²109.9 mm²
C 961.625 mm²961.625 mm²
D 54.95 mm²
C
Step-by-step explanation:
Diameter = 35 mm
Radius = 35 ÷ 2 = 17.5 mm
Area = pi × r² = pi × 17.5² = 962.112
The closest one is C
PLEASE HELP AND QUICK
Answer:
1/3 P
Step-by-step explanation:
If P/3 is equal to the length of one side, then 1/3 P is also equal to the length of one side, since 1/3 x P = P/3.
If you help you will get a Sunday
Hi! Can anyone please give me the sale prices step by step?
I am still not sure how to answer this one. I'm asking because my dad can get angry with my grades (F's and D's) and this is 7th grade if you ask :''D
Answer: 6
Simple Explanation:
To find 75% of 8, just multiply 8 by 0.75 (which is the same as 75%).
8 x 0.75 = 6
Find the missing value:
2/5=?/15
Answer:
The Missing value is? 6
Solution:
2/5= 2 times 3
_______
5 times 3
= 6/15
A map of your town has a scale of 1 inch to 0.25 miles. There are two roads that are 5 inches apart on the map. What is the actual distance between the two roads?
Answer:
1.25 miles
Step-by-step explanation:
Departure: 5:35 a.m.
Arrival: 8:17 p.m.
Answer: 2:42
Step-by-step explanation:
8:17 - 5:35 = 2:42
please please please please help me I need to get 100 on this paper
Answer:
1. slope = 12
y-intercept = 1/3
2.slope = 1/4
y-intercept= -12
3.slope = 3
y-intercept = 2
Step-by-step explanation:
When you get an equation for a graph, the co-efficient infront of the x (The number by the x) is the slope.
The equation for the y-intercept:
When solving for y-intercept, you replace y in the equation with 0 and make x the subject.
Example:
y = 12x - 4
0=12x - 4
-12x = -4
divide both sides by negative 12 since we want only positive x
[tex]\frac{-12x}{-12} =\frac{-4}{-12}[/tex]
x = [tex]\frac{1}{3}[/tex]
Therefore, the y-intercept = 1/3
WHATS THE SURFACEEE AREEAAA OF THIISSSS COMPOSTIEEE FIGUREEE
Answer:
560 ft squared
Step-by-step explanation:
Square side: 10 x 10 = 100
Rectangle Side: 14 x 10 = 140
2 (100 + 140) = 480 ft squared is the base
Triangle Roof: 9 x 14 = 126
126 x 2 = 152
Front and back of triangle: 10 x 8 = 80 ft squared
Answer 480 + 80 = 560 ft squared
You would have to divide by 2 if there was 1 front triangle and no back because a triangle is half of a square and you multiply how a square does and divide by 2.
Hope that helps :)
Answer:
560 square feet
Find the degree of -5w^3-4w^2+7w+16
Answer:
3
Step-by-step explanation:
the degree is the highest power of the variable.
answer this question.
Answer:
40
Step-by-step explanation:
70% of something is 28.
We'll use the variable x to hold our value. 70% can be written as 0.7. Rewriting our equation, we get:
0.7 * x = 28.
Lets divide 0.7 over. Our new equation is:
x = 28 / 0.7.
You get that x = 40.
70% of 40 = 28.
Answer:
The answer is 40
Step-by-step explanation:
Sorry I can't really give a good explaination
Hope this helps :)
PLS BRAINLIEST
How can I find the distance between (-7, 8) and (7, 8)?
Answer:
7
Step-by-step explanation:
Use the distance formula:
[tex]\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}[/tex]
with (-7,8) being point 1 and (7,8) being point 2
Let me help you solve this:
[tex]\sqrt{(7- -7)^{2}+(8-8)^{2}}[/tex]
[tex]\sqrt{(7+7)^{2}}}[/tex]
√49
=7
The distance between these 2 points is 7 units.
Hope this helps! :)
What shape is formed if you plot the
points (2, 5), (6, 5), (5, 3), and (1, 3) and
connect the points in the order listed?
Answer: D. Parallelogram
Step-by-step explanation: I just put it in on a graphing calculator.
Answer:
D. Parallelogram
Step-by-step explanation:
Please refer to the attachment
What's the area of the composite figure?
Answer:
422 cm²
Step-by-step explanation:
You want the surface area of the composite figure consisting of a 5 cm by 10 cm by 7 cm rectangular prism topped by a 3 cm by 4 cm rectangular prism extending 8 cm from the 7 by 10 cm surface.
Surface areaThe total surface area of the figure is the sum of the total surface area of the 5 by 10 by 7 cm yellow cuboid and the lateral area of the 4 by 3 by 8 cm purple cuboid.
A = 2(LW +H(L +W)) +Ph
where L, W, H are the dimensions of the yellow cuboid, P is the top perimeter of the purple cuboid, and h is its height.
ApplicationUsing the given dimensions, we find the area to be ...
A = 2(5·10 +7(5+10)) +2(3+4)·8 = 422 . . . . cm²
The surface area of the composite figure is 422 cm².
<95141404393>
johnny had to work in the morning and 8 hour shift. he clocked in at 8:00am to began working and then clocked back out for 30 min lunch break at 11:06am -11:36 am. he clocked back out at 11:43 am because he got sick. now he has return back to wirk and clocked in at 3:21pm what time will johnny gets off in order to make his 8 hours?
Answer:
8:08pm.
Step-by-step explanation:
So he worked 3 hours 6 minutes from 8am-11:06am.
Then he worked another 7 minutes from 11:36-11:43am. That brings our running total to 3 hrs 13 minutes.
To work 8 hours, he needs to work 8 hrs - 3 hrs 13 minutes = 4 hrs 47 minutes more.
He's starting a 3:21pm.
First add on the 4 hours. 3:21pm + 4 hours = 7:21pm.
Now add on 47 more minutes. If we add 39 minutes, that brings us to 8pm. He would have 47-39=8 more minutes to work. That brings us to 8:08pm.
The answer is 8:08pm.
PLSS HELP MEEEEEEE ILL GIVE BRAINLIEST IF CORRECT
Answer:simply easy , A= -1/4 B= 0.5 C= 3/4 D -0.75
Step-by-step explanation:
Choose the inequality that represents the following graph.
A) x > -9
B) x > -8
C) x > -7
D) x < -7
Choose more than one.
Answer:
D), A)
Step-by-step explanation:
