A trapezoid has a height of 8 cm and bases with lengths of 14 cm and 8 cm. Tina says the area of the trapezoid is 176 cm2.
Find her error, and correct the error.
Tina did not multiply by _ . The correct area is _ cm2.
Answer:
Step-by-step explanation:
Let's do this properly:
Area of trapezoid = average length times height.
Here,
Area = (1/2)(8 cm + 14 cm)(8 cm), or
= (11 cm)(8 cm) = 88 cm^2
It appears that Tina forgot to divide the sum of 14 cm and 8 cm by 2. Thus, her answer is twice as large as it should be.
PLEASE HELP!!!! PLEASE! EASY!! BRAINLIEST RIGHT AWAY IF YOU EXPLAIN!!!
Find the surface area of the triangular prism.
Answer:
First picture: 60
Second picture:
Step-by-step explanation:
The first step for the first picture is to find the area of the triangle on top. In order to do that, we have to use the equation: (W*L*1/2)
(3*4*1/2)=6
Then, we multiply the above equation by the Height. Which makes the equation become 60.
The first step for the second picture is the same. We first find the area of the triangle on top.
(12*9*1/2)=54
Then we multiply the height by our above answer.
(54*20)=1,080
The other measurements that were there aren't needed. So, next time, completely ignore them!
Hope you have a good day/night! Good luck!
In the figure given below, calculate x and y.
Answer:
x = 73°
y = 39°
Step-by-step explanation:
x + 107 = 180 {Linear pair}
x = 180 - 107 {Subtract 107 from both sides}
x = 73°
y + 51 + 90 = 180 {straight line angles}
y + 141 = 180
y = 180 - 141
y = 39°
HELPPPPPPPPPPPPPPPPPPPPPPPPPEPPPPPPPPPPPPPPPPPPPPPPP
Answer:
1st Question:
(2,-3)
(3,-1)
(3,1)
(4,1)
(5,3)
2nd Question
y=-2+10x (graph in desmos to be sure)
Step-by-step explanation:
1st Question: just write the x and the y that the x is pointing to
2nd Question: type the points on a table in desmos and find a equation that goes through the same line
HELP PLS ITS OVER DUE PLEASE MATCH THESE! please
what is the diameter of a circle with area of 113.04 square cm. use 3.14?
pls fast
Answer:
diameter of a circle = 12cm
Step-by-step explanation:
Area of a circle = πr²
113.04 cm² = πr²
First, search for radius (r) :-
r = √(113.04/π)
r = 6 cm
As diameter is equals to 2×radius
The diameter of a circle = 2 × 6cm
Final answer = 12 cm
Answer:
d≈12cm
Step-by-step explanation:
Using the formulas
A=πr2
d=2r
Solving for d
d=2A
π=2·113.04
π≈11.99696cm
Answer this question please and thank you
Step-by-step explanation:
8 = 2^3
27= 3^3
13= 13^1
49/81 = (7/9)^2
Identify the solid from it's net.
Shape of polygonal faces: _____
Shape of base( s ):______
This is a net of a _______.
Answer:
shape of base(s)
Step-by-step explanation:
because youu Cann see thata the solid from its net is shape of base(s)
Write the equation of the line in slope-intercept form using y=mx+b
Answer:
y = 4x + 4
Step-by-step explanation:
Two points you can see on the graph are (0,4) and (-2,-4)
Now, to find the slope, use delta y/ delta x
(-4-4)/(-2-0)
(-8)/(-2) = 4
Slope is 4.
y = 4x + b
Now, to find b, we need the y-intercept, which is the point where x is 0 and the graph crosses the y-axis.
This value is 4. So, the y-intercept is 4
Substitute into your equation
y = 4x + 4
mZ2=
m23=
m24=
Help due today!!!
the length of a rectangular room is 4 yards and the width is 6 yards of carpet cost $18 per yard how much will the carpet cost for the room
Answer:
I think it's $432
Step-by-step explanation:
6x4=24x18=432
What is the area of the real object that the scale drawing models?
scale factor 1:5
area of scale drawing: 12 square cm
area of real object: ?
Answer:
60
Step-by-step explanation:
1×5=5
12×5=50
answer:60
IF SOLVED I WILL CORRECTLY ILL GIVE 5 STARS AND BRAINIEST Which of the following describes a correct method
for solving the equation below?
8 + y = −4
a. Add 8 to both sides.
b. Subtract 8 from both sides.
c. Add 8 to both sides, then add y to both sides.
d. Subtract 8 from both sides, then divide both
sides by –1
!!!I WILL GIVE BRAINLIEST!!! Mrs. Pickens is choosing glazes for pottery. Her choices are shown in the table below. If Mrs. Pickens chooses a color, a texture, and a polish for each pottery glaze, what is the total number of combinations of glazes she can make?
A. 3
B. 7
C. 12
D. 18
You will now see two questions that may look a little different.
Simplify the following expression.
12 -2(x + 1)
Estimate the difference of the means that you found in part A and part B as a multiple of the mean absolute deviation.
Answer:
What is part a and b?
Step-by-step explanation:
The area of a regular hexagon circumscribed about a circle with radius 5 is __
Round your answer to the nearest whole number.
Answer: 7
Step-by-step explanation:
Please, I need help!!
A circle has a radius of 3 m. What is its circumference?
Use 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.
PLEASE HELP WILL MARK BRAINLIEST!!
The answer is C
The mean is - Mean- The AVERAGE OF ALL NUMBERS: You add up all the numbers then you divide it by the TOTAL NUMBER of NUMBERS!
Answer:
so you can give him the brainliest :)
A structure covering a sports practice field has the shape of half of a cylinder, as shown. What is the total surface area of the structure to the nearest square yard, including the ends and the flat area of the field itself? Use 3.14 for .
wait i dont know why it wont let me comment or see comments but wheres the picture?
CAN SOMEONE ANSWER THIS WITH THEIR OWN OPINION Should doctors be allowed to dress casually while at work? Why or why not? What is your opinion?
I need help on c and d
Answer:
The inequality is a greater than or less than but I don’t see d
Step-by-step explanation:
If x = 11 units and h = 7 units, then what is the area of the triangle shown?
A.
77 square units
B.
24.5 square units
C.
115.5 square units
D.
38.5 square units
Answer:
38.5
Step-by-step explanation:
x÷2= 5.5
5.5×7= 38.5
answer: 38.5
What is 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 1
Answer:
1953125
Step-by-step explanation:
Answer:
1953125
Step-by-step explanation:
5*5 = 25
25*5 = 125
125*5 = 625
625*5 = 3125
3125*5 = 15625
15625*5 = 78125
78125*5 = 390625
390625*5 = 1953125
1953125*1 = 1953125 Answer
At Marble Middle School,35% of the students are 6th graders,32% are 7th graders, and the rest are 8th graders.What percent are 8th graders?
Can you please tell me HOW to solve it?
A train left William's town at 7:35 P.M. The train traveled for 1 hour and 30 minutes to Richmond. Then it traveled 3 hours and 55 minutes to Kingwood. What time did the train arrive in Kingwood? HELP!! :(
Answer:
12:55 A.M
Step-by-step explanation:
1 hour and 30 minutes plus 3 hours and 55 minutes equals 5 hours and 25 minutes.
The train left at 7:35 P.M. Now that we have all of the necessary info, we put it together.
12:55 A.M.
Using time rules and whatever, we add the 5 hours and 25 minutes to 7:35. Which gives us the answer right above, 12:55 A.M. is the time that they will arrive at Kingwood.
She needs the enlargement to follow the scale of of a foot to 3 feet. This will result in an image with a length of 8 feet and width of 6 feet.
What is the unit rate of area in square feet of the enlarged image per square foot of area of the original image?
A.
16 square feet per square foot
B.
32 square feet per square foot
C.
144 square feet per square foot
D.
48 square feet per square foot
Which expression gives the unit length of the line segment with the endpoints (-12, 8) and (2, 8)
|-12| + |2|
|-12| - |2|
|8| + |8|
|8| - |8|
Answer:
First one.
Step-by-step explanation:
|-12| = 12
|2|= 2
unit length = 14.
THIS IS FROM THE ANNE FRANK PLAY
Reread lines 123-141, how does this passage help the audience and readers understand the order of events?
Write the equation of the line in slope-intercept form using y=mx+b
Answer:
y = 3/1x + 5
Step-by-step explanation:
The line crosses the y-axis at 5, meaning the y intercept is 5.
The slope has a rise of 3 and run of 1, making the slope 3/1.