Answer:
580 cm squared
Step-by-step explanation:
(20 x 10)2 = 400
(20 x 3)2 = 120
(10 x 3)2 = 60
400 + 120 + 60 =
580
In 2012, the population of China was about 1.351 x 10^9 and the population of Japan was about 1.280 x 10^8. Based upon these estimates, approximately how many more people lived in China than in Japan in 2012?
Answer:
7 x10^6
Step-by-step explanation:
Math question down below
Answer:
B
Step-by-step explanation:
How many different size triangles can be drawn with angle measures 90°, 45°, and 45°?
A. No triangles
B. Exactly one triangle
C. Exactly two triangles
D. Any number of triangles
Answer:
Step-by-step explanation:
I believe is D because you actually change the measure of two angles as long as the sum of them are 90.
Perform the addition of polynomials (middle school math pls help!)
Answer: 1/4a - 1/6b + 1/10c
Hope this helped! Have a great rest of your day :)
HELP!!!!!!!!!
Plz Show working:)
Step-by-step explanation:
Hope this help you !! ;))answer of (ii) : perimeter = 66m
area = 272m^2
The graph shows the distance from home over time on a 1200 km automobile trip.
Find the average speed for the entire trip.
A. 25 km/h
D. 1200 km/h
E 1225 km/h
B. 48 km/h
C. 1175 km/h
Answer:
48 km/h.
This is because 1200/25 is 48.
the gift shop at a science museum sells lollipops that are made to look like the planets. each lollipop is shaped like a sphere and has a radius of 12 mm
what is the volume of each lollipop?
Answer:
12mm
Step-by-step explanation:
Because you have not sayed how many lollipops
Answer:
7238.23
Step-by-step explanation:
After a picnic, 5/12 of the cornbread is left over. Val eats 4/5 of the leftover cornbread. What fraction of the cornbread does Val eat? Enter your answer in simplest form.
Answer:
5/12 - 4/5 = -23/60. You can't simplify -23/60. Hope this is right
Step-by-step explanation:
4/5= 48/60
5/12 = 25/60
25/60-48/60= -23/60
the ratio of boys and girls at the park 9 to 6 and there were 45 boys how many girls are there?
Answer:
30
Step-by-step explanation:
9 boys: 6 girls
45 boys: ? girls
9 x 5 = 45
6 x 5 = 30
What is the input value for which g(x) = 3?
x=
Answer:
3
Step-by-step explanation:
you said it
PLEASE HELP QUICK!! WILL MARK BRAINLIEST!!
(SAT Prep) Find the value of x in each of the following exercises:
THANKS!!
Answer:
x is 24 degrees
Answer:
x = 24
Step-by-step explanation:
I'm 8 years old and I know how to do this.
The sum of interior angles of a quadrilateral is 360°
The sum of a supplementary angle is 180°
180 - 111 = 69
94 + 41 + 69 + a = 360
204 + a = 360
a = 156
156 + x = 180
x = 24
What is a less than 16
Answer:
15 is a less than 16
Step-by-step explanation:
Answer:
What are the choices??
Step-by-step explanation:
Which could be the area of a face of the rectangular prism?
A) 5m2
B) 6m2
C) 7m2
D) 9m2
Answer:
D) 9 m2
Step-by-step explanation:
a rectangular prism has six rectangular faces or sides, its surface area is just the sum of the six faces, you can calculate the surface area with the formula 2 length width + 2 * width * height + 2 * height * length, where length, width and height.
B. 6m^2
Step-by-step explanation:
I just found the area of the faces and chose the one that was an answer choice
Pythagorean Theorem:
What can you conclude about the Pythagorean Theorem ? What type of triangles does the Pythagorean Theorem relate to?
Example:
I think the Pythagorean Theorem relates to...
Answer:
The Pythagorean theorem works only on right triangles. Also it is used to find the hypotenuse when you know 2 other sides.
Step-by-step explanation:
Answer: The Pythagorean Theorem is a formula used to find the hypotenuse (the value of C2).
Step-by-step explanation: That formula is A2 + B2 = C2. Right Triangles are the only triangles that relate to the Pythagorean Theorem.
HELP ASAP 10 POINTS AND BRAINLIST!!!!
Use the tape diagram to find the ratio.
Mr. Morris' art class used blue paint and purple paint for a school mural. Find the part-to-whole ratio of purple paint to the total. Write the ratio using a colon and no spaces.
a0
Answer:
I believe the ratio would be 5:6
Step-by-step explanation:
Since 5 blue paint is used for every 6 purple paint, the ratio would be 5:6
Answer:
5:6
Step-by-step explanation:
Which is the graph of f(x) = x2 – 2x + 3?
Answer:
Step-by-step explanation:
We cannot factor this function out which tells us that there are no zeros. The graph backs this up because we can see that there are none. The easiest way to graph this would start by plugging in points and making a table for yourself.
Lets start by plugging in -1.
(-1)^2-2(-1)+3 =6, this means we have a point at (-1,6).
Now lets plug in 0.
(0)^2-2(0)+3= 3 (0,3)
For plugging in 1
(1)^2-2(1)+3=2 (1,2) (this happens to be the vertex)
And lastly lets plug in 2
(2)^2-2(2)+3=3 (2,3)
Depending on how many points are needed, keep plugging in numbers like we did above.
Answer:
A
Step-by-step explanation:
Edge 2021
(9x2+3x-5) - (3x2+4x-10)
Answer:
39
Step-by-step explanation:
I'm assuming x is supposed to be a multiplication sign.
You need to use PEMDAS for this:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
(9x2+3x-5)-(3x2+4x-10)=
(18-15)-(6-40)=
3-(-36)=
3+36=
39
Help me solve this.50+(3x+4)
Answer:
50+4=54 and you can't add a number with a letter to th number that doesn't so it is 54+3x.
Step-by-step explanation:
Answer:
54+3x
Step-by-step explanation:
Hope this helps! Have a nice day!
What is the length of segment AB? (4 points)
12
10
8
6
4-
2-
Х
0
B
-10 -8 -6 -4
-2
0
2
4
6
00
10
-2
-6
10
12
ОСОО
13
15
Answer:
2:4 means one part is 2/(2+4)=1/3 of AB and the other part is 2/3 of AB
Step-by-step explanation:
Add 1/3 of the distance from -2 to 4. (1/3)(4+2)=2. -2+2=0 The x coordinate is 0
Subtract 1/3 of the distance from 6 to -6, (1/3)6+6)=4 6-4=2 The y coordinate is 2
The point is (0,2)
Check the answer
distance from (-2,6) to (0,2) is square root of (-2)^2 + (4)^2 = sqr20 = 2(5)^2
distance from (0,2) to (4,-6) is square root of (4)^2 +(8)^2 = sqr80 = 4(5)^2
First distance is half the 2nd distance, so the point divides AB into 2 parts in a ratio of 2:4
A politician is running for a state representative position. She wants to know what her chances of winning are.
Which method is MOST LIKELY to give a random sample of voters?
OA
Survey college students at a state college
A
Survey people who ride public transportation
C
Survey people who volunteer at political events
D
Survey people in several different cities throughout the state
Answer:
the answer is d
Step-by-step explanation:
because this would give her more widen answer and selection
Each side of a square name tag is 7 centimeters long. What is the name tag's area?
Answer:
49 cm²
Step-by-step explanation:
The area for a square is Area = length x width, and if the square name tag is 7cm long on "each side", that means that both the length and the width are 7cm.
Plug this into the formula to get A = 7cm x 7cm.
This can be simplified to A = 49cm².
Answer: 49 cm^2
Step-by-step explanation:
7 x 7 = 49
Proofs!! can someone PLEASE HELP
Answer:
nope sorry
Step-by-step explanation:
idk
the peripherals are the same with the numerators acting the quotient
Julie earns $1800 each month and pays $450 a month for rent. What percent of her income goes toward her rent?
Answer: 25%
Step-by-step explanation:
450/1800
Answer:
25 percent is what percent of her income that goes towards her rent
This circle is circumscribed about quadrilateral ABCD. What is the value of x?
Answer:
The value of x is 56°
Step-by-step explanation:
Given that opposite angles in a cyclic quadrilateral is add up to 180°. So in order to find x, you have to write an expression in terms of x :
[tex]97 + x + 27 = 180[/tex]
[tex]x + 124 = 180[/tex]
Next you have to solve it by substracting 124 to both sides :
[tex]x + 124 - 124 = 180 - 124[/tex]
[tex]x = 56[/tex]
(5×7) + 3 = 5 ×(2×7) true or false
Step-by-step explanation:
35 + 3 = 5 x 14
38 = 70
False
Answer:
false
Step-by-step explanation:
(5×7)+3
(35)+3
38
5×(2×7)
5×(14)
70
Which is a solution for the equation 3x + 13 = 73?
Answer:
x=20
Step-by-step explanation:
73-13=60
60÷3=20
Answer:
x = 20
Step-by-step explanation:
3x + 13 = 73
3x = 73 - 13
3x = 60
x = 60 : 3
x = 20
I need help understanding how to solve this please ASAP!!!!
Answer:
17 cm
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2 +b^2 = c^2 where a and b are the legs and c is the hypotenuse
8^2 + 15^2 =c^2
64+225 = c^2
289 = c^2
Take the square root of each side
sqrt(289) = sqrt(c^2)
17 = c
Answer:
The hypotenuse is 17cm
Step-by-step explanation:
Pythagoras theorem is : [tex]a^{2} +b^{2} =c^{2}[/tex]
To work out the hypotenuse of this triangle you would first need to know Pythagoras theorem. The theorem states that [tex]a^{2} +b^{2} =c^{2}[/tex]. A and B are the 2 lengths given in this question and c is the hypotenuse.
The first step in working out the hypotenuse is to square the base of 8, this gives you 64.
Then you would need to square the height of 15, this gives you 225. This is because we are substituting the values into a and b.
Then the next step is to add the values of 64 and 225, this gives you 289.
The final step is to root the value of 289, which gives you 17cm. This is because as c is the hypotenuse while the value worked out is c squared and so to work out c you would have to root it.
1) Square the base of 8cm.
[tex]8^{2} =64[/tex]
2) Square the height of 15cm.
[tex]15^{2} =225[/tex]
3) Add 64 and 225.
[tex]64+225=289[/tex]
4) Root the value of 289.
[tex]\sqrt{289}= 17cm[/tex]
Victouria leaves school to go home. She
walks 6 blocks North and then 10 blocks
West. How far is Victouria from the
school?
Answer:
11.66
Step-by-step explanation:
Pythagorean theorem: a^2+b^2=c^2
6^2+10^2=c^2
36+100= c^2
sqrt(136)= sqrt(c)
c= 11.66
Tom is 77 inches tall and shrinking at a rate of 0.75% every eyar. How tall will he be after 15 years?
Whats the exponential function
Answer:
The exponential funtion is "height(n) = 77*(0.9925)^n". After 15 years he is 68.7778 inches.
Step-by-step explanation:
Since Tom's initial height is 77 inches. After one year:
height(1) = 77*(1 - 0.0075) = 77*0.9925
After two years:
height(2) = height(1)*(0.9925) = 77*0.9925*(0.9925) = 77*(0.9925)²
After three years:
height(3) = height(2)*0.9925 = 77*(0.9925)²*0.9925 = 77*(0.9925)³
And so on, therefore the expression that represents his height is:
height(n) = 77*(0.9925)^n
Where n is the number of elapsed years. For 15 years we have:
height(15) = 77*(0.9925)^(15) = 68.7778 inches
The exponential funtion is "height(n) = 77*(0.9925)^n". After 15 years he is 68.7778 inches.
X is at least 2" can be represented by x > 2.
True
False
Answer:
True
Step-by-step explanation: