Answer:
31
Step-by-step explanation:
When you add 31 + 24 = 55
55 - 5 = 50
If the scale factor of sides is 3, then the scale factor of area is ___ and the scale factor of
volume is __
Answer:
Here is an example: if we have a rectangle that has a length 3 and a height of 4 and the scale drawing with a scale factor of 2, how many times bigger is the scale drawings area? The original shape is 3 by 4 so we multiply those to find the area of 12 square units.
Answer:
9
27
Step-by-step explanation:
the scale factor of area is 3² = 9
the scale factor of volume is 3³ = 27
• 3 skittles are red • 6 skittles are green • 3 skittles are blue A skittle will be randomly selected from the bag. What is the probability in decimal form that the skittle selected will be green?
Answer:
13.4
Step-by-step explanation:
You multiple all of numbers and divide it by 4
Answer:
The probability of pulling out a green skittle in decimal form is 0.5
Step-by-step explanation:
Hope that helps
The cube root is the same as______
Answer:
the third root
Step-by-step explanation:
You are buying carpet to cover a room that measures 42 ft by 42 ft. The carpet cost $ 25 per square yard. How much will the carpet cost?
Ok so, 42 ft. by 42 ft.
$25 per square yard
1 square yard = 9 square feet
The total square footage is 1,764 ft.
Total square yards is 196.
The total cost would be $4,900.
so basically i just need help on calculating a percentage of a number, for example 30% of 40 and stuff like that. please help asap :')
Answer:
Percentage can be calculated by dividing the value by the total value, and then multiplying the result by 100. The formula used to calculate percentage is: (value/total value)×100%.
Step-by-step explanation:
Write an equation of the form y = mx for the line shown below. If appropriate, use the decimal form for the slope.
Answer:
y=3/4x
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(3-(-3))/(4-(-4))
m=(3+3)/(4+4)
m=6/8
m=3/4
y-y1=m(x-x1)
y-(-3)=3/4(x-(-4))
y+3=3/4(x+4)
y=3/4x+12/4-3
y=3/4x+3-3
y=3/4x
A local school board wants to determine the proportion of households in the district that would support starting the school year a week earlier. They ask a random sample of 100 households whether they would support starting the school year a week earlier, and 43 households responded that they would. The school board plans to construct a 95% confidence interval for the true proportion of households that would support starting the school year a week earlier. Are the conditions for inference met?
A)Yes, the conditions for inference are met.
B)No, the 10% condition is not met.
C)No, the randomness condition is not met.
D)No, the Large Counts Condition is not met.
The conditions for inference is not met in the question due to the fact that the large count condition is not met.
What is the large count condition in statistics?This is the condition in statistics that states that the numbers of the successes and the failures have to be greater than 10 for there to be a normal distribution.
Using this formula n(1-p) ≥ 10. The probabilioty is 95%, therefore it would be less than 10
Read more on statistics here: https://brainly.com/question/15525560
Which solid has a triangle as its side view and a triangle as a cross section perpendicular to its base?
A. cone
B. cylinder
C. triangular prism
D. pentagonal prism
Answer:
A
Step-by-step explanation:
No explaintion sorry.
Hope this helps!
find the cardinality of x , if x={-n,...,-2,-1,0,1,.....n}
Pls help!!! The problem is in the photo.
Can anyone help me solve this series problem?
Answer:
32 by using triangle taerem
what is thisssss hellooo
Answer:
I think your answer is 73".
I think it will help you
Learning POST-Qunz Greatest Common Factor - Item 31123 Ques Drag each pair of numbers to show if their greatest common factor (GCF) is less than 6, equal to 6, or greater than 6 CLEAR CHE 8 and 20 18 and 45 4 and 10 12 and 28 12 and 30 16 and 24 GCF is less than 6. GCF is equal to 6. GCF is greater than 6. DRAG AND DROP ITEMS DRAG AND DROP ITEMS HERE DRAG AND DROP ITEMS HERE be here to search 昌 52°
The common factors for 24,36,12 24 , 36 , 12 are 1,2,3,4,6,12 1 , 2 , 3 , 4 , 6 , 12 . The GCF (HCF) of the numerical factors 1,2,3,4,6,12 1 , 2 , 3 , 4 , 6 , 12 is 12 .
Can you please help me please can you answer both of these questions
Answer:
Item 2
Perimeter is (5*2) + 12.5*2 = 35 ft
Area is 12.5 * 5 = 62.5 ft^2
________________
Item 3
perimeter is (5.8*2) + 9*2 = 29.6 ft
Area is 9 * 4.8 = 43.2 ft^2
Step-by-step explanation:
Hope to help you
Formular of area. you can find in internet. If you forgot.
and perimeter can take length each side to sum.
100 POINYS AND BRIANLIST
Answer: See below
Step-by-step explanation:
Let A represent an adult who visited a therapist
Let B represent an adult who used a non-prescription antidepressant
Given:
P(A) = 0.28 P
P (B) = 0.43
P(A Intersection B) = 0.22
a) P(B ∩ A) = P (B ∩ A) / P(A) = 0.22/0.27
P(B | A) = 0.79 or 79%
b) P(A ∩ B) = P (A ∩ B) / P(B) = 0.22/0.4.3
P(A | B) = 0.51 or 51%
Answer:
(a) 44.44%
(b) 71.43%
Step-by-step explanation:
Let A = adults who visited a therapist.
Let B = adults who used antidepressants.
Therefore:
P(A) = 0.28P(B) = 0.45P(A ∩ B) = 0.20Part (a)[tex]\boxed{\begin{minipage}{5 cm}\underline{Conditional Probability formula}\\\\A given B:\\\\$\sf P(A|B)=\dfrac{P(A \cap B)}{P(B)}$\\\end{minipage}}[/tex]
To calculate the probability that an adult visited a therapist (Event A) during the past year, given that he or she used antidepressants (Event B), use the conditional probability formula for A given B:
[tex]\implies \sf P(A | B)=\dfrac{PA \cap B)}{P(B)}[/tex]
[tex]\implies \sf P(A | B)=\dfrac{0.2}{0.45}[/tex]
[tex]\implies \sf P(A | B)=0.444444...[/tex]
[tex]\implies \sf P(A | B)=44.44\%\;\; (nearest\; hundredth)[/tex]
Part (b)[tex]\boxed{\begin{minipage}{5 cm}\underline{Conditional Probability formula}\\\\B given A:\\\\$\sf P(B|A)=\dfrac{P(A \cap B)}{P(A)}$\\\end{minipage}}[/tex]
To calculate the probability that an adult used antidepressants (Event B), given that he or she visited a therapist (Event A) during the past year, use the conditional probability formula for B given A:
[tex]\implies \sf P(B | A)=\dfrac{P(A \cap B)}{P(A)}[/tex]
[tex]\implies \sf P(B | A)=\dfrac{0.2}{0.28}[/tex]
[tex]\implies \sf P(B | A)=0.714285714...[/tex]
[tex]\implies \sf P(B | A)=71.43\%\;\; (nearest\; hundredth)[/tex]
please help asap
perform the indicated operation. Write the answer in the form a+bi.
(3-10i)(2+4i)
20 points
Answer:
46 -8i
Step-by-step explanation:
Multiplication of complex numbers is done in a fashion similar to multiplication of any binomials. The difference is that i² = -1, so some terms can be combined.
(3 -10i)(2 +4i) = 3(2 +4i) -10i(2 +4i)
= 6 +12i -20i -40i² = 6 -8i +40
= 46 -8i
_____
Your calculator may be able to help.
Brainliest if correct
Answer:
[tex]\frac{2}{3} + \frac{1}{5} = \frac{10}{15} +\frac{3}{15} = \frac{13}{15}[/tex]
PLEASE BRANLIEST ANSWER IS CORRECT I CHECKED
Step-by-step explanation:
First, find the least common denominator which is 15.
[tex](\frac{5}{5})\frac{2}{3} + (\frac{3}{3})\frac{1}{5}[/tex]
When we multiply by 5/5 or 3/3 we are not changing the value of the fraction, just turning the denominator into one which we can work with the other fraction's denominator.
After simplification:
[tex]\frac{10}{15} + \frac{3}{15}[/tex]
Now we can add:
[tex]\frac{13}{15}[/tex]
Answer:
13/15
Step-by-step explanation:
because 5 x 2=10 3 x 1=3
5 x 3=15 5 x 3=15
10/15+3/15= 13/15
HOW DO I DO THIS[tex]j[/tex]
Answer:
times them
Step-by-step explanation:
all the numbers
What is the perimeter of the rectangle?
Answer:
12
Step-by-step explanation:
Answer:
The perimeter is the outside of the rectangle
Step-by-step explanation:
You see this by looking at the outside and the answer is 4 by 3
A rectangular prism has a length of 10 in., a width of 2 in., and a height of 3 1/2 in. The prism is filled with cubes that have edge lengths of 1/2 in.How many cubes are needed to fill the rectangular prism
Solution:
Step-1: Find the volume of the rectangular prism.
Volume of rectangular prism: LBH=> Volume of rectangular prism: (10)(2)(3 1/2)=> Volume of rectangular prism: (10)(2)(3.5)=> Volume of rectangular prism: (2)(35)=> Volume of rectangular prism: 70 in³Step-2: Find the volume of the small cube.
Volume of cube: L³=> Volume of cube: (1/2)³=> Volume of cube: (1³/2³)=> Volume of cube: (1/8)Step-3: Divide.
70 ÷ 1/8 => 70 x 8=> 560 cubesThus, 560 cubes are needed to fill the rectangular prism.
Need help with Geometry math
problem #9
Answer:
Let ABC be a triangle such that CA is produced to meet at E.
We know, an exterior angle of a Triangle is equal to non- adjacent interior angle, so
8x - 10 = x + 15 + 2x + 20
or, 8x - 3x = 35 + 10
or, 5x = 45
or, x = 9
How to find angles C and D.
Answer:
c = 21º
d = 100º
Step-by-step explanation:
In questions like this, always find the angles you can find and it will help you find more and more.
So let's start by finding angle e. We know that the sum of the angles in any triangle is equal to 180. So let's do 180 - (20 + 20) = 140
angle e = 140º
Now we don't know either C or D and are unable to find them with only e, so let's find other angles to help us. The 4 angles that aren't known at each corner of the square are easy to find, as we know for sure that they fully equal to 90º. So 90 - 20 = 70º. Both angles at the bottom corners = 70º. Now for the top corners: top left = 90 - 30 = 60º and top right = 90 - 40 = 50º.
As well as this, we can find a and b as well, but I think you already figured that out. angle a: 180 - (30 + 40) = 110º, angle b: 360 - (140 + 110) = 209º
Now we can figure out c and d, because we know that the sum of all angles in any quadrilateral is 360º. So the trapezium on the left, angle c: 360 - (70 + 60 + 209) = 21º. And finally right trapezium, angle d: 360 - (70 + 140 + 50) = 100º
question is on the picture i attatched
1. what is the value of 8:3 = 24:x
Answer:
x = 9
Step-by-step explanation:
8 : 3 = 24 : x
=> 8/3 = 24/x
=> x = 24 x 3 / 8
=> x = 3 x 3
=> x = 9
i need help on this question
Answer:
Step-by-step explanation:
∠WTX = ∠WUV (facing same arc WV)
9x + 18 = 15x
6x = 18
x = 3
In ΔXUV,
∠VXU = 180 - 15x - (3x + 21)
= 180 - 18x - 21
= 159 - 18(3)
= 159 - 54
= 105°
please help me please
Answer:
7 pieces
Step-by-step explanation:
Hope it helps.
Rong Huang can buy 4 books with 2/9 of his money. He can buy another 8 such books and 2 identical bags with the rest of his money. How many such bags can he buy with the original sum of money?
Step-by-step explanation:
remember, that a/a = 1, and this is always the "whole" in such fraction scenarios.
in our case here : 9/9 or 3/3.
4 books for 2/9 of his money.
8 books for then 2× 2/9 = 4/9 of his money.
that is together
12 books for 6/9 = 2/3 of his money.
that leaves 3/9 = 1/3 of his money for the 2 identical bags.
so, 1/3 of his money for 2 bags.
how many bags for the whole (3/3) money ?
1/3 × x = 3/3
x = 3
he could have bought 3×2 = 6 bags with the original sum of money.
why does -2 to the power of 3 produce the same answer as (-2) to the power of 3
Answer:
because it's an odd exponent
Step-by-step explanation:
-2^3 = -(2*2*2)
(-2)^3 = (-2)*(-2)*(-2)
if it was ^4 the sign would be flipped:
-2^4 = -(2*2*2*2) = -16
(-2)^4 = (-2)*(-2)*(-2)*(-2) = 16
The way to put this is that any negative base raised to an odd-numbered power, will result in a negative result, whereas any negative base raised to an even-numbered power, will result in a positive result, with the EXCEPTION of a negative base written WITHOUT grouping symbols. For instanse:
[tex]\displaystyle -1000 = -10^3 \\ -1000 = [-10]^3 \\ \\ BUT \\ \\ 10000 ≠ -10^4\:[-10000 = -10^4] \\ 10000 = [-10]^4[/tex]
I hope you know the differense now, and as always, I am joyous to assist anyone at any time.
AB of the right triangle ABC is twice the length of the leg BC. Find the number of degrees in angle ABC
Answer:
It is 45 degree angle
Step-by-step explanation:
AB is the tilted angle of the triangle
BC is the height and the vertical part of the triangle
If AB is 10 then BC is 5 and AC is possibly about 6-8
If that is so then 2 right triangles is a square
A square has 90 degree angles on any angle
Divide 90 by 2 which is 45 because a right triangle is half of a square
Therefore angle ABC is 45 degrees
HELP PLEASE!
Three consecutive integers have a sum of 57. Find the integers.
Answer:
18, 19, and 20.
Step-by-step explanation:
Consecutive means beside. Numbers 2 and 3 are consecutive integers. Given this question, numbers 6, 8, and 9 could possibly be the answer. However, we don't know this, so let's represent the 6 as x, 7 as x+1. 9 is x+2. We know when these are added together the sum is 57, so 3x+3 should be 57. Now, solve as a normal algebraic question.