Answer & Step-by-step explanation:
For this problem, we will use the distance formula.
[tex]d=\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]
For our (x1, y1), we will use (-3, 1). For our (x2, y2), we will use (1, 5). Now let's plug in our numbers and solve the problem.
[tex]d=\sqrt{(1-(-3))^2+(5-1)^2}[/tex]
[tex]d=\sqrt{4^2+4^2}[/tex]
[tex]d=\sqrt{16 + 16}[/tex]
[tex]d=\sqrt{32}[/tex]
[tex]d=5.657[/tex]
So, the distance between (-3,1) and (1,5) is 5.657 units.
Nadine promised to meet her friend at a store but she forgot which store. There are five
stores in town. What is the probability that Nadine will go to the right store first?
B
0.20
A
0.16
D
1.00
С
0.80
Answer:
.2 chance of going to the right store
Step-by-step explanation:
Five stores, and she is to meet a friend at one. One store is the right one so it is 1 out of 5, or 1/5. This equals 20%
In decimal it is a .2 chance of Nadine going to the right store
Hope this helps!
Giving brainliest to whoever helps me.
Answer:
w = 2.5 cm
Step-by-step explanation:
The area (A) of the triangle is calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )
Here b = 5 and h = 6, thus
A = 0.5 × 5 × 6 = 15 cm²
Thus the area of the rectangle is 15 cm²
A = lw ( l is the length and w the width )
Here l = 6 and w is to be found
6w = 15 ( divide both sides by 6 )
w = 2.5 cm
Can y’all find the missing side length so that their similar figures
Answer:
1. x = 9.75,
2. x = 36,
3. x = 12
Step-by-step explanation:
See attachment below;
Marco measured the height of his snowman at the beginning of the week and again after five days. The change in height was -10 inches. How much did the snowman shrink per day?
Answer:
-2 inches
Step-by-step explanation:
Change in height: -10 inches
Days over which change noticed: 5 days
Change per day: -10÷5= -2 inches
The snowman shrank -2 inches per day.
If Paul answer six questions out of 15 test questions correctly what percent of his test questions did he answercorrectly
So the right answer is 40%
look at the attached picture
Hope it will help you
Good luck on your assignment
Zachary used the calculations shown to find how much he would spend on 16 ounces of pistachios.
6 ounces of pistachios cost $7.50
StartFraction 7 dollars and 50 cents Over 6 ounces EndFraction = StartFraction dollar-sign question mark Over 1 ounce EndFraction
Unit price = $0.80 per ounce
(16 ounces) (StartFraction 80 cents Over 1 ounce EndFraction) = 12 dollars and 80 cents
What was his first error?
Answer:
He made a math error
Step-by-step explanation:
6 ounces of pistachios cost $7.50
take 7.50 / 6=1.25 per ounce ( not .80 per ounce)
Then 1.26 * 16 = 20.00 for 16 ounces
Answer: B
Step-by-step explanation: The price per ounce should have been $1.25 per ounce.
I hope this helps! °ω°
Someone plz help fast will give brainiest
Answer:
$5
Step-by-step explanation:
The bill was $15 extra this month so 15 divided by 3 is 5.
What is the quotient of 91.5 ÷ 2.44?
Answer:
37.5
Step-by-step explanation:
Hugo reflects a vector v across the line y = –x. Nemo rotates a vector v 180° counterclockwise about the origin. Which of the following vectors would have the same image for Hugo and Nemo?
Answer:
The (3, 3) one
Step-by-step explanation:
i did the exam and got it right ;)
The vectors that have the same image for Hugo and Nemo are [3, 3].
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
To find the reflection of a vector v across the line y = -x, we can use the formula:
reflection(v) = R×v × R
where R is the reflection matrix given by:
R = [0 1]
[1 0]
To find the rotation of a vector v by 180° counterclockwise about the origin, we can use the formula:
rotation(v) = Rθ × v
where Rθ is the rotation matrix given by:
Rθ = [-1 0]
[0 -1]
Let's apply these transformations to each vector and see which ones have the same image for both Hugo and Nemo:
Reflection(d) = R × d × R = [0 1] × [3, 3] × [0 1] = [3, 3]
Rotation(d) = Rθ × d = [-3, -3]
These two vectors are equal.
Therefore, the vectors that have the same image for Hugo and Nemo are [3, 3].
To learn more on Graph click:
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(5ab-4a-8) - (9ab-5)
Answer:
Step-by-step explanation:
-4a-4ab-3
Answer:
-4ab+-4a+-3
Step-by-step explanation:
(5ab-4a-8)-(9ab-5)
distribute the negative sign
=5ab-4a-8+-1(9ab)+(-1)(-5)
=5ab+-4a+-8+-9ab+5
combine like terms
=(5ab+-9ab)+(-4a)+(-8+5)
=-4ab+-4a+-3
2 horizontal and parallel lines are intersected by 2 diagonal lines to form a triangle with exterior angles. The top angle of the triangle is (2 x + 10) degrees. The bottom right angle of the triangle is 79 degrees. The exterior angle to the bottom left angle is (6 x + 1) degrees. What is the value of x? x = 2.25 x = 11.25 x = 13 x = 22
Answer:
11.25
Step-by-step explanation:
8x+11=180-79
8x+11=101
8x=90
x=11.25
By angle sum property the value of x in the expression (2 x + 10) + (6 x + 1) +79 =180 is 11.25
What is the angle sum property?The angle sum property of a triangle states that the sum of the interior angles of a triangle is 180 degrees.
2 horizontal and parallel lines are intersected by 2 diagonal lines to form a triangle with exterior angles.
The top angle of the triangle is (2 x + 10) degrees. The bottom right angle of the triangle is 79 degrees.
The exterior angle to the bottom left angle is (6 x + 1) degrees.
By angle sum property
(2 x + 10) + (6 x + 1) +79 =180
8x+11 + 79 =180
8x+11=180-79
8x+11 =101
8x = 90
x = 11.25
Learn more about the triangles;
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Please help i dont know what to do for #1 we never went over it.Help asap Please. You migjt have to flip devoce upside down to see
Answer:. GCF of first two terms is 7r^2.
GCF for last two terms is 2
Step-by-step explanation: GCF means the largest number that the terms can be divided by evenly.
7 and 14 are both divisible by 7. The factors of those terms are (7r^2)(r +2).
r^3 means r × r × r. r^2 means r × r so r^2 is a factor of r^3
2r and 4 are both divisible by 2. The factors of those terms are (2)(r +2)
Find the length of a diagonal of a square if its area is 162 square feet.
Answer:
9sqrt(2) ft or 12.73 ft
Step-by-step explanation:
A = L^2
sqrt(162) = 9sqrt(2)
The diagonal of a square is equal to the side length.
pls help quick will mark as brainliest
The measure of a central angle is 3 x + 18, and the measure of its arc is 147°. Which equation can you use to find the value of x ?
A) 2(3 x + 18) = 147°
B) 3 x + 18 = 2(147°)
C) 3 x + 18 = 147°
Answer:
C
Step-by-step explanation:
The central angle is equal to the measure of the arc that subtends it, thus
3x + 18 = 147 → C
Answer: C.) 3x + 18=147
hoped this helped
:)
What value(s) of x make the following expression undefined? x^2+ 1
2x − 4
Type only value(s) that should be excluded from the solution set.
Answer:x=2
Step-by-step explanation: 2x-4=0
2x-4=0
+4 +4
2x=4
2x/2=4/2
X=2
If f(x) = 3x + 7, find:
f(-2) = [ ? ]
Answer:
1
Step-by-step explanation:
Plug in -2.
f(x) = -6+7
f(x) = 1
The value of the given function when x is -2 is 1.
What is a function?A function is defined as a relation between a set of inputs having one output each.
Given a function, f(x) = 3x + 7
Put x = -2.
f(-2) = -6+7
f(-2) = 1
Hence, The value of the given function when x is -2 is 1.
For more references on a function, click;
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PLZ I NEED HELP WITH THIS PROBLEM!
Answer:
Q3= 66.5
Step-by-step explanation:
median= 61.5
Q1= 56.5
Q3= 66.5
(65+68)/2= 66.5
What is the sum? …...
............................
How can you use ratios using fractions?
help
please help me.
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The radius of a circle is 5 cm. Find its area to the nearest tenth.
Answer:
A = 78.5 cm²
Step-by-step explanation:
Area of Circle = πr²
A = (3.14)(5)²
A = (3.14)(25)
A = 78.5 cm²
The area formula of a circle is r² x π.
With that being said, we can now substitute in our radius value.
(5)² x π
From there, we can find the square root of the radius.
(25) x π
And then we can multiply by pi to solve.
78.539816..
Finally, we'll round to the nearest tenth to get our answer.
78.5
Therefore, the area of the circle is 78.5 cm.
Hope this helped! :)
Can somebody answer this.
Answer:
J-12-16KL(-12, -16)MOSorry. I cannot really the points and graphs clearly.
I hope I helped you! If my answer is correct, please mark me brainiest. Thanks!
What is 9.81 million in scientific notation ?
Answer:
9.81*10 (you have to add that tiny six next to the 0)
Step-by-step explanation:
Answer:
9.81 x 10^6
in 2009, a gullop poll found that 47% of Americans favored protection of the environment at the risk of limiting energy supplies, while 46% favored the development of u.s energy supplies even if that risked harming the environment. Another 3% felt that energy and the environment were equally important. a) based on the poll, whats the probability a person had "no opinion"? b) Whats the probability of that a respondent rated protecting the environment as equally important or more important than developing energy sources
Answer:
your
Step-by-step explanation:
welcome
can someone please help me!!
Answer:
c÷4=35
Step-by-step explanation:
cost as a whole divided by 4 friends.
Answer:
c/4=$35
Step-by-step explanation:
35(4)=c, so c/4=35
Find the 4th term of the expansion of (a - sqrt(2)) ^ 8
Answer:
Applying the binomial theorem
[tex]{\displaystyle (x+a)^{n}=\sum _{k=0}^{n}{n \choose k}x^{n-k}a^{k}}[/tex]
Here we have x = -[tex]\sqrt{2}[/tex], n = 8,
=> 4th term (k = 3) would be:
[tex]{8 \choose 3}x^{8-3}a^{3}} = {8 \choose 3}(-\sqrt{2})^{5}a^{3}} = -224a^{3}\sqrt{2}[/tex]
Hope this helps!
:)
Answer:
A
Step-by-step explanation:
Can you help me? I am confused this is a hard question for me
Answer:
960, 160 for each face / base
Step-by-step explanation:
А
B
(4x + 5)
Quadrilateral ABCD is inscribed in a circle,
What is the measure of angle A?
Enter your answer in the box
(x + 15)
mŁA =
Answer:
mLA=133 degrees
Step-by-step explanation:
4x+5+x+15=180
5x+20=180
5x=160
x=32
4(32)+5=128+5=133
17. The Cruz family is buying a custom-made cover for their swimming pool, shown below. The cover costs
$2.95 per square foot. How much will the cover cost? Round to the nearest cent.
25 tt
a
$2,627.56
c. $1,627.56
b. $1,467.56
d. $1,212.89
Answer:
The answer is is
C. $1,627.56
Step-by-step explanation:
The question is incomplete,
Kindly find attached the diagram of the poll for the dimension for your reference.
we need to first calculate the area of the pool.
Let's begin by calculating the area of the rectangular shape
A= length x width
A= 25*15
A=375ft²
Secondly the two semi circles can be solved for as a whole circle
Area of circle = πr²
Radius r= diameter/2= 15/2= 7.5ft
Area = 3.142*7.5²
A= 3.142*56.25
A= 176.7375ft²
Total surface area pool =
176.7375+375= 551.7ft²
Given that a square foot is $2.95
Hence the cost of covering the pool is 551.7*2.95=$1,627.515
Which equation represents the line that passes through the points (-4, 10) and (-8, 9)?