The square of 13 is 169.
Here we have to calculate,
Squared of 13
Therefore, we can write it as
13² = 13 x 13
We have to multiply 13 with 13
Since we know that,
They are the numbers multiplied by themselves, according to the square number definition. In other terms, a square number is formed by multiplying a natural number by itself.
And to multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Now,
1 3
x 1 3
__________
3 9
1 3 x
______
1 6 9
Hence,
13² = 13 x 13
= 169
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10 POINTS! NO LINKS!
I need help with this, it would be amazing if you could also explain how to do it? I just started learning about it and I haven't gotten the hang of it quite yet.
And I may be posting more of these today.
Answer:
V≈863.5
Step-by-step explanation:
Volume for a cylinder:
V=πr^2h
r = 5ft
h = 11ft
π = 3.14
Insert them accordingly and multiply, and that's it!
3.14 * 5^2 * 11 = 863.5
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Answer:
3, 4
Step-by-step explanation:
Marsha Deposited $5,500 into a savings account 5 years ago. The simple interest rate is 2%. How much money did Marsha earn in interest?
Answer: $550.00
Step-by-step explanation: Equation: I = Prt
Calculation:
First, converting R percent to r a decimal
r = R/100 = 2%/100 = 0.02 per year,
then, solving our equation
I = 5500 × 0.02 × 5 = 550
I = $ 550.00
The simple interest accumulated
on a principal of $ 5,500.00
at a rate of 2% per year
for 5 years is $ 550.00.
Hope this helped! ;)
Please help if you dont mind?
Answer:
choice A
Step-by-step explanation:
What is the value of B - A, as a fraction?
please help me on this question
Use the given scale factor and the side lengths of the scale drawing to determine the side lengths of the real object
Sewe factor 31 21 in Scale drawing Object
A. Side a is 24 inches long and side bis 21 inches long
B. Side ais 63 inches long and side bis 54 inches long
C. Side ais 7 inches long and side bis 6 inches long
D. Side a is 18 inches long and side bis 15 inches long
In a packet of mixed candies there are 2 fruit centers for every 3 caramel centers. There are 30 candies in the packet. How many caramel centers are there?
Answer:
18 Caramel Centers
Step-by-step explanation:
Solution
So first off, we can group 2 and 3 toghether to make one "packet" with 5 candies in it. Now, we can divide 5 by 30 and get 6. Now we know how many packets/candies there are. After that, we can multiply 6 with 3 to get 18 caramel centers.
Verification:
2 x 6 = 12
3 x 6 = 18
12 + 18 = 30 ✅
Evaluate the expression for x = 29.
If two sectors have an area of 12π square units, and one sector is from a circle with radius 6 units, while the other is from a circle with a radius of 4 units, how do the central angles for these sectors compare?
Answer:
Thus, the ratio of the central angles is 4 : 9.
Step-by-step explanation:
Area, A = 12 π square units
radius, R = 6 units
radius, r = 4 units
Area of sector is given by
[tex]A=\frac{\theta }{360}\times \pi r^{2}[/tex]
For first sector
[tex]12\pi=\frac{\theta }{360}\times \pi \times 6^{2}\\\\\theta = 120^{o}[/tex]
For second sector
[tex]12\pi=\frac{\theta' }{360}\times \pi \times 4^{2}\\\\\theta' = 270^{o}[/tex]
So, the ratio is
[tex]\frac{\theta}{\theta'}=\frac{120}{270} =4 : 9[/tex]
Answer:
4 : 9
Step-by-step explanation:
Given:
Two sectors, each has an area of 12pi, but with radii r1=6 and r2=4 units.
Find ratio of central angles.
Solution:
Let A = central angle
Area of a sector = pi r^2 (A/360)
Since both sectors have the same area,
pi r1^2 (A1/360) = pi r2^2 (A2/360)
simplifying
A1 r1^2 = A2 r2^2
Therefore
A1 : A2 = r2^2 : r1^2 = 4^2 : 6^2 = 4 : 9
Please helped this is for my math final.
12. Consider the inequality |x|≤8.
Express the solution using interval notation.
Answer:
[-8,8]
Step-by-step explanation:
Richard claims that the value of the expression 23x2+173x+12 is sometimes negative. Which of these values of x supports Richard's claim?
A
−6
B
−4 1/4
C
−1 1/2
D
−2/3
Please help me again lol I can't do math
Answer:
a) Thomas is 36 years old ( 3x12= 36 )
b) Alexis is 31 years old ( 36-5=31 )
c) 19 years older ( 31-12=19 )
You buy 10 pounds of birdseed at Store A for $11.50. Your friend buys 15 pounds of birdseed at Store B for $19.50. How much less would you spend buying 20 pounds of birdseed at the store with the better deal and why?
Answer:
The answer is three
Step-by-step explanation:
$11.50/10 = $1.15 per pound
$19.50/15 = $1.30 per pound
$1.15 * 20= $23
$1.30 * 20 =$26
$26- $23 = $3
answer: $3
Answer: You would spend $3 less at store A with 23 and Store B with 26
Step-by-step explanation: Store B: 15 pounds / 19.50 = $1.3*20 =$26
Store A: 10pounds =11.50*2=$23
Hope this helped!
What would this equation be in vertex form? Show all steps please! :)
y2 + 16x - 4y = -20
Answer: Answer is in the attachment xoxo
Step-by-step explanation:Subtract
y
2
y
2
from both sides.
16
x
−
4
y
=
−
20
−
y
2
16x−4y=−20−y
2
2 Factor out the common term
4
4.
4
(
4
x
−
y
)
=
−
20
−
y
2
4(4x−y)=−20−y
2
3 Divide both sides by
4
4.
4
x
−
y
=
−
20
−
y
2
4
4x−y=
4
−20−y
2
4 Add
y
y to both sides.
4
x
=
−
20
−
y
2
4
+
y
4x=
4
−20−y
2
+y
5 Divide both sides by
4
4.
x
=
−
20
−
y
2
4
+
y
4
x=
4
4
−20−y
2
+y
6 Simplify
−
20
−
y
2
4
+
y
4
4
4
−20−y
2
+y
to
−
20
−
y
2
4
4
+
y
4
4
4
−20−y
2
+
4
y
.
x
=
−
20
−
y
2
4
4
+
y
4
x=
4
4
−20−y
2
+
4
y
7 Simplify
−
20
−
y
2
4
4
4
4
−20−y
2
to
−
20
−
y
2
4
×
4
4×4
−20−y
2
.
x
=
−
20
−
y
2
4
×
4
+
y
4
x=
4×4
−20−y
2
+
4
y
8 Simplify
4
×
4
4×4 to
16
16.
x
=
−
20
−
y
2
16
+
y
4
x=
16
−20−y
2
+
4
y
While sitting on a park bench, Tanisha counts that 16 out of 20 people who walk by her have a pet with them.
Part A. What is the probability that a person who walks by Tanisha has a pet?
Part B. What is the probability that a person who walks by her does not have a pet?
Answer:
the answer would be-
Step-by-step explanation:
The probability that a person who walks by Tanisha has a pet- 0.8
The probability that a person who walks by Tanisha does not have a pet- 0.2
What is probability?Probability is a mathematical term, which can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
Probability of Event = Favorable Outcomes/Total Outcomes = X/n
Part A. The probability that a person who walks by Tanisha has a pet can be calculated by dividing the number of people who have a pet by the total number of people who walk by her. In this case, 16 out of 20 people have a pet, so the probability is:
P(having a pet) = 16/20 = 4/5 = 0.8
So, the probability that a person who walks by Tanisha has a pet is 0.8 or 80%.
Part B. The probability that a person who walks by Tanisha does not have a pet can be calculated by subtracting the probability of having a pet from 1. That is:
P(not having a pet) = 1 - P(having a pet)
P(not having a pet) = 1 - 0.8
P(not having a pet) = 0.2
So, the probability that a person who walks by Tanisha does not have a pet is 0.2 or 20%.
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Create a story and draw (or explain) a model for the problem 4 ÷ 1/4
Answer:
16
Step-by-step explanation:
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Someone help me with this immediately
for question 1
Area of Base B =45×25 = 1125 cm²
perimeter of base P = 2(45+25) = 140 cm
Height = 15 cm
Using the formula
Surface area = 2B + Ph
A = 2×1125 + 140×15= 4350 cm²
Voume = Bh = 1125×15= 16875 cm³
For question 2,
Area of base = 7× 5/2= 17.5 cm²
Perimeter of base = (7+7+7) = 21 cm
Surface area = 2B + Ph
Surface area of prism = 2×17.5+ 21×10 = 245cm²
Volume = Bh = 17.5×10 = 175 cm³
Answer:
Step-by-step explanation:
for question 1
Area of Base B =45×25 = 1125 cm²
perimeter of base P = 2(45+25) = 140 cm
Height = 15 cm
Using the formula
Surface area = 2B + Ph
A = 2×1125 + 140×15= 4350 cm²
Voume = Bh = 1125×15= 16875 cm³
For question 2,
Area of base = 7× 5/2= 17.5 cm²
Perimeter of base = (7+7+7) = 21 cm
Surface area = 2B + Ph
Surface area of prism = 2×17.5+ 21×10 = 245cm²
Volume = Bh = 17.5×10 = 175 cm³
3:10 = 3/10=N/100
help asap
Answer:
N = 30
Step-by-step explanation:
3: 10 = 3/10 = 0.3
0.3 * 100 = 30 = N
Answer: 30/100
Step-by-step explanation: 3:10=3/10. N/100 Divided by 10 is N/10; multiply 3/10 by 10.
Please find Surface Area of the Prism. 5mm 4mm 7mm. Thanks
Answer:
140mm
Step-by-step explanation:
i did 5 x 4 x7 =140mm
Help me please I don’t understand this one
Answer:
∠Y is the smallest angle measure.
The correct answer is B
help meee plzz i need help
Answers:
a) 15.6b) 12c) 36d) 51.6============================================
Explanations:
Part (a)
The area of a triangle formula is A = 0.5*b*h where b and h are the base and height. You could use 1/2 in place of the 0.5
We're focused on the blue shaded triangle, which is the "floor" so to speak of this pyramid. To find the floor area, we will use b = 6 and h = 5.2 and we get
A = 0.5*b*h = 0.5*6*5.2 = 15.6
For this problem, all areas are in square inches as denoted by the [tex]\text{in}^2[/tex]
If you're curious where the b = 6 came from, it's because all sides of the equilateral triangle are the same length.
Note: The base and height of a triangle are always perpendicular.
----------------------
Part (b)
Focus on any single non-shaded triangle. Let's say we focus on the upper triangle. We have b = 6 and h = 4. It then leads to the area A = 12 sq in. This is the area of one lateral face.
------------------------
Part (c)
The instructions state that the lateral faces are congruent triangles, aka they are identical triangles. So that means we have three copies of the same area we found back in part (b), which was 12. Therefore, the lateral surface area is 3*12 = 36 square inches. As your teacher mentions, we do not include the shaded triangle as part of this result (that will happen in part d below).
------------------------
Part (d)
We add the results of parts (a) and (c) together to get the full surface area. This is the total area of the flat net, and it corresponds directly to the full surface area because we fold up the 2D figure to get the 3D one.
The total surface area is 15.6+36 = 51.6 in^2
--------------------------
Side note: Another name for "triangular pyramid" is "tetrahedron". The "tetra" means "four", and "hedron" means "face".
Answer:
51.6
Step-by-step explanation:
58. A standard six-sided die is rolled.
What is the sample space of numbers rolled?
Write your answers on the same line, and separate your answers with commas.
Answer:
6
Step-by-step explanation:
total number of outcomes is 6 (1,2,3,4,5, or 6) so sample space is 6
7th grade math please help
Answer:
144 and 36
Step-by-step explanation:
I found the same question on brainly the explanation is on there!
https://brainly.com/question/15640770#:~:text=Answer%3A,Step%2Dby%2Dstep%20explanation%3A&text=To%20find%20the%20other%20angle%2C%20simply%20subtract%20144%20from%20180.
Helppp! what are the answers
Answer:
5.4 inches 0.15 yardsStep-by-step explanation:
hope it's helpful
Find the Volume for the above figure.
Hint: Find the volume of each prism, then add together to get total volume
find the perimeter of this scalene triangle. 51/8 2/1/2
Answer: 19 1/2
Step-by-step explanation:
help
p.s im sorry for the Carl Wheezer with a dumptruck i just felt y'all needed to see
OUR GOD
(20r-8) divided by 4
Answer:
5r - 2
(20r - 8) ÷ 4
= (20r : 4) - (8 : 4)
= 5r - 2
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