A net of a square pyramid is shown. The total area of the pyramid's triangular faces is 80 cm'. What is the area of the pyramid's square base in centimeters squared?
Answers
Answer:
I think it will be 400 cm^2
Step-by-step explanation:
8cm x 20cm/ 2 = 80cm^2 this is for the triangle
So the base is 20cm^2 and so me multiply that x2 which will give us 400cm^2 for the square
Related Questions
for a rectangle, which of the following are true?
Answers
Answer:
Step-by-step explanation:
A: not the answer. It would be for a square or rhombus.
B: True
C: True
D: True
E: True
F: No this one is false. Consecutive sides means 1 length and 1 width. If they are congruent, you have a square or rhombus, but not a rectangle.
Please show work. What is the volume of the figure?
Answers
Answer:
Volume = 288 in.³
Step-by-step explanation:
Volume of the solid = volume of the cube + volume of the square pyramid
V = a³ + ⅓*a²*h
a = 6 in.
h = 12 - 6 = 6 in.
Plug in the values into the volume formula
Volume = 6³ + ⅓*6²*6
Volume = 216 + 72
Volume = 288 in.³
Freddy wants an average grade of 93 from his four algebra exams. The scores for his first three exams are 94, 89, and 96. What grade would Freddy need to earn on his fourth exam to have an average grade of 93?
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94+89+96+93= 372, 372 divided by 4= 93
The top of an 18-foot ladder touches the side of a building 14 feet above the ground. Approximately how far from the base of the building should the bottom of the ladder
be placed?
Answers
Answer:
Assuming that ladders should be placed at an 75° angle, let's translate it into a slope of 3.732 of a line (looked the value up, was too lazy to calculate it)
the distance from the orign in the picture is your answer, and one side of a triangle formed by the wall, the ground and the ladder
Which best describes the data set below?
A. The data is skewed to the right.
B. The data is skewed to the left.
C. The has gap at 2 and a peak at 6.
D. The data is symmetrical.
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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Mira inserts a key into a keyhole to open the door. She turns the key through 156 one-degree angles.
What is the angle measure of the turn that the key made?
Answers
9514 1404 393
Answer:
156° or 13π/15 radians
Step-by-step explanation:
156 times 1° is 156°.
In radians, the angle measure is (156°)(π/180°) = 13π/15 radians.
Evaluate: (11 × 12 )−(−6 × 70)
Answers
Answer:
552Step-by-step explanation:
(11 × 12 ) − (−6 × 70)= 132 - (420)= 132 + 420= 552[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
What is the product of the binomials below?
(5x + 2)(4x + 4)
A. 20x2 +28x+6
O B. 20x2+28x+8
O C. 9x2 +28x+6
O D. 9x2 +28x+8
Answers
Step-by-step explanation:
everything can be found in the picture
PLEASE HELP I WILL GIVE THE BRAINLIEST ANSWER FAST
second attachment has the diagram
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Answer: B and E apply. I know for sure.
How do you Solve this system of equations:
y=2x-1
4x+3y=7
Answers
Answer:
(1, 1)
Step-by-step explanation:
I've attached a picture above. Do tell me if you're still confused. This is just one of many methods
Answer:
(1,1)
Step-by-step explanation:
See the steps below:)
1. Which equation should be used to find the area of the triangle below? *
1 point
5 inches
-5 inches
2 inches
Answers
Answer:
See Explanation
Step-by-step explanation:
Required
Expression for area of triangle
This is calculated using
[tex]Area = \frac{1}{2} * base * height[/tex]
Assume that:
[tex]base = 5cm; height = 2cm[/tex]
The equation becomes
[tex]Area = \frac{1}{2} * 5* 2[/tex]
The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 3408 miles, with a variance of 249,001. If he is correct, what is the probability that the mean of a sample of 36 cars would differ from the population mean by less than 198 miles
Answers
Answer:
[tex]0.98268[/tex]
Step-by-step explanation:
We are given that
Mean, [tex]\mu=3408[/tex]miles
Variance, [tex]\sigma^2=249001[/tex]
We have to find the probability that the mean of a sample of 36 cars would differ from the population mean by less than 198 miles.
n=36
[tex]P(|\bar{x}-3408}|<198)=P(3408-198<\bar{x}<198+3408)[/tex]
=[tex]P(3210<\bar{x}<3606)[/tex]
=[tex]P(\frac{3210-3408}{\sqrt{\frac{249001}{36}}}<\frac{\bar{x}-\mu}{\sqrt{\frac{variance}{n}}}<\frac{3606-3408}{\sqrt{\frac{249001}{36}}}[/tex]
[tex]=P(-2.38<Z<2.38)[/tex]
[tex]=P(Z<2.38)-P(Z<-2.38)[/tex]
[tex]=0.99134-0.00866[/tex]
=[tex]0.98268[/tex]
Hence, the probability that the mean of a sample of 36 cars would differ from the population mean by less than 198 miles=[tex]0.98268[/tex]
I need help with this please
Answers
Answer:
B) 9x² + 6x + 1
Step-by-step explanation:
use the FOIL method:
(3x + 1)(3x + 1)
F: 3x(3x) = 9x²
O: 3x(1) = 3x
I: 3x(1) = 3x
L: 1(1) = 1
combine the 'like terms' in the middle to get 6x
answer: 9x² + 6x + 1
Answer:
the answer is B. 9x^2 + 6x+1
Liz created this table to show the ratio of red pencils to green pencils in her box. Identify the ratios that are equivalent to the ratio of red pencils to green pencils in Liz’s table.
Red Pencils Green Pencils
2 6
4 12
6 18
8 24
Answers
Find the circumference of the given circle given a diameter of 9 in
use 3.14
Answers
Answer:
28.26
Step-by-step explanation:
Circumference= 2 pi x r
Diameter= 9 (double the radius)
Radius= 4.5
Pi= 3.14
2 x 3.14= 6.28
6.28 x 3.14= 28.26
:D
look up the circumference formula, and then plug the numbers in
remember radius is diameter divided by 2
A train traveled for T = 2.0 hours at a constant speed of R = 36 miles per hour. Use the formula D = R · T to find the total distance the train traveled (in miles). Do not include the units in your answer.
Answers
Answer: T=1700
Step-by-step explanation:
pls help on number 2!!
Answers
Answer:
Step-by-step explanation:
the given figure is rectangle
area of rectangle=l*b
=5*6
=30 ft^2
Answer:
Area = 30 ft²
Step-by-step explanation:
This figure is a rectangle, therefore;
Area of a rectangle = B*W
A = 5*6
A = 30
Therefore the area of the given rectangle is 30 ft²
Hope this helps!
Triangle ABC is a right triangle.
The lengths of one leg is 60 feet, and the hypotenuse is 61 feet.
What is the length, in feet, of the other leg?
Answers
Answer:
Hello! answer: 11
Step-by-step explanation:
60 × 60 = 3600
11 × 11 = 121
3600 + 121 = 3721
√3721 = 61
therefore 11 is the missing leg Hope that helps!
explanation: i used the equation 60^2+b^2=61^2 bc the pythagorean theorem (the expression used to solve a missing side of right triangles ONLY) is a^2+b^2=c^2.
Rewrite the polynomial in the form ax + by + c and then identify the values of a, b, and c.
x+4+y/8
Answers
Multiply by 8
8x + 32+ y
Rearrange
8x + 1y + 32
a = 8, b = 1, c = 32
A cuboid with a volume of 924 cm^3 has dimensions
4 cm, (x + 1) cm and (x + 11) cm.
Find the longest length of the Cuboid.
Answers
Answer:
21
Step-by-step explanation:
Volume of a cuboid is given by
V = l*w*h
924 = 4 (x+1) (x+11)
FOIL
924 = 4(x^2 +11x+x+11)
924 = 4(x^2+12x+11)
Divide each side by 4
231 = (x^2+12x+11)
Subtract 231 from each side
0 = x^2 +12x +11-231
0 = x^2 +12x - 220
Factor
0 = (x+22) (x-10)
Using the zero product property
x+22 =0 x-10 =0
x=-22 x=10
We cannot have a negative length
x=10
The side lengths are 4, 10+1, 10+11
4,11,21
The longest is 21
Please give the rigbt answer ill give brainliest
Answers
f(x)=3x+4 and g(x) 4x^(2)-x
Find f(-5) and g(-2)
Answers
g(-2)=4(-2)^2+2=18
Help with both of these please!
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2.) turn to the right 2, flip, down 2
Help plz I will give Brainlyest
Answers
Regards,
ArmyCee:)
Arrange the steps to solve this system of linear equations in the correct sequence x+y=-2 2x-3y=-9
Answers
there you go the correct ans
Find the relation independent of y for the following equation
y^2-2y+1 = 0
-y^2+3y+m =0
Answers
Answer:
m=−2,y=1
Step-by-step explanation:
A teacher kept track of the shirt colors her students were wearing on Wednesday. The results of her observations are shown in the table below.
What is the P(blue shirt | girl)? Write your answer as a decimal.
Answers
Answer:
.321428571
Step-by-step explanation:
P(blue shirt | girl)
This means what is the probability of a blue shirt given that we have a girl
There are 56 girls and 18 girls wearing blue shirts
P(blue shirt | girl) = girls in blue shirts / girls
= 18/56
=.321428571
Describe how the graph of y= x2 can be transformed to the graph of the given equation. (2 points) y = (x-4)2-8
Answers
Answer:
The description is that the function was translated 4 units to the right and 8 units down.
Step-by-step explanation:
Translations:
Translating a function f(x) a units to the right is the same as finding f(x - a).
Translating a function f(x) a units to the left is the same as finding f(x + a).
Translating a function f(x) a units up is the same as finding f(x) + a.
Translating a function f(x) a units down is the same as finding f(x) - a.
y= x² to y = (x-4)²-8
First at the domain, x becomes x - 4, so f(x) becomes f(x - 4), that is, the function was translated 4 units to the right.
Then the function is subtracted by 8, that is, it was translated 8 units down.
The description is that the function was translated 4 units to the right and 8 units down.
What is the radius of a sphere with a volume of 3675 m^3, to the nearest tenth of a meter?
Answers
Answer:
9.57m
Step-by-step explanation:
Answer:
Other person's wrong, I tried their answer. It's actually 9.6. They would've been right but they rounded to the nearest HUNDREDTH. Not tenth.
simplify the expression.
64 7/12
a. 16
b. 8squareroot 2
c. 4 square root 2
d. 32
Answers
Answer:
B. 8 square root 2 is the answer.