Answer:
5
Step-by-step explanation:
y²-y¹/x²-x¹
Where y²=27
y¹=2
x²=8
x¹=3
= 27-2/8-3
=5
Help! 4 √5 - √3 + 3√5
Answer:
1.47327392
Step-by-step explanation:
Answer:
7 √5 - √3
Step-by-step explanation:
collect like terms:
(4 √5 - √3 + 3√5)
what is a scale? in math
Select all ratios equivalent to 20:18.
3:2
18:9
30:27
Answer:
30:27 i think
Step-by-step explanation:
which of the following graphs is described by the function given below? y=x2-6x-16
Answer:
I need a picture of the graphs first. I will comment the answer when I see the graphs
Step-by-step explanation:
Answer:
THE ANSWER IS GRAPH C
Step-by-step explanation:
A
P
E
X AND WITH THE HELP OF SOMEONE ELSE.
Chris lost 4 of the 10 dollar bills that his parents gave him for his birthday. What percentage of his dollar bills did he lose?
Answer:
Step-by-step explanation:
Percentages are always out of 100 and can be illustrated by fractions.
[tex]\frac{4}{10}[/tex] [tex]\frac{x}{100}[/tex]
To find out x, you multiply 100x4 then divide by 10.
This leaves us with [tex]\frac{40}{100}[/tex]
Which is also 40%.
Choose the correct simplification of (7x^3 – 4x - 8) + (2x^3 + 3x + 2).
Answer:
9[tex]x^{3}[/tex]-x-6
Step-by-step explanation:
Answer:
=9x3−x−6
Step-by-step explanation:
7x3−4x−8+2x3+3x+2
Polygon KLMN is similar to polygon PQRS. What is the length of QR?
Answer:
D. 6 cm
Step-by-step explanation:
3/4.5=4/QR
Cross multiply
18/3=6
What is the GCF of 48mn and 81m?n??
О Зmn
О Зmn
О. 48men
О 129m52
Answer:
3m2n is the answer this answer but I dotnsee its s an option
Two websites sell the same type of headphones.
Website A
Website B
Cost of headphones
£49.95
£47.68
Cost of postage
£4.39
£6.95
Including the cost of postage which website is cheaper and by how much
What type of transformation transforms (a, b) to (-a, b)?
a reflection over the y-axis
a translation of 1 unit down
a reflection over the x-axis
a translation of 1 unit up
Answer:
A reflection over the y axis .
Step-by-step explanation:
Given : Transforms (a,b) to (-a,b).
To find : What type of transformation.
Solution : We have given
Parent function : (a,b) .
Transformed : (-a ,b).
Transformation rule of reflection over y axis : ( x, y) →→ ( -x ,y).
Then we can say in transformation (a,b) →→→→ (-a,b).
Therefore, A reflection over the y axis
Step-by-step explanation:
plz brain list
Answer:
hes right i took the test
Step-by-step explanation:
5 tenths - 2 tenths = 3 tenths in standard form
Answer:
5×10-2×10=3×10
50-20=30i think
What is the surface area of this triangular prism?
640 square centimeters
672 square centimeters
960 square centimeters
800 square centimeters
Answer:
for triangular prism: 672
for picture: 24
Step-by-step explanation:
PLEASE HELP ITS URGENT
DONT GUESS
WILL MARK BRAINLIEST
Answer:
5ft
Step-by-step explanation:
13ft -8ft = 5ft
I really need to know theese and rhe rest plsss
Answer:
10.45?
Step-by-step explanation:
Answer:
5.05
Step-by-step explanation:
-2.7+7.75
2.7 is how much he descends so its negative
And 7.75 for how much he went up so its positive
Can I get the answers to 29 and 33?
What is the volume of this cube? If it only shows one edge that says 0.5m?
Answer:
0.125 or about 0.13
Step-by-step explanation:
Length times width times height.
What does |-7| equals ?
Answer:
7
Step-by-step explanation:
Answer:
the answer is 7
Step-by-step explanation:
when the lines are around it it means to find the value without a sign
Please help me ASAP i will give brainiest
Answer:
The answer is B
Step-by-step explanation:
Since parallelograms have a total of 360 degrees, you just have to add the 115 and 64 to get 179. The 124 is completely irrevant in this entire problem. So then 360-179=181. It is B because y is an acute angle, meaning that the value HAS to be under 90 degrees, and only B has y as an acute angle measurement.
Answer:
B bro
Step-by-step explanation:
Can someone Please help!!!!
BRAINLY for correct answer!
Answer:
i belive 11 and 1 sorry if it is not right
Step-by-step explanation:
Explain the importance of using the square of the scale factor to calculate the area of a dilated figure
Answer:
2
Step-by-step explanation:
2+2=4 therefore 2x2 also equals 4, 4/2=2.
In mathematics and geometry, a dilation is an enlargement in size or a reduction in size of a mathematical object. We perform a dilation of a square by placing the shape on a coordinate plane and multiplying each of the coordinates of the vertices of the square by the same number, called the scale factor. This can also be achieved by multiplying the lengths of each of the sides of a square by the scale factor.
When we dilate a square by a scale factor of k, its sides increase by a factor of k, its area by [tex]k^{2}[/tex], and its volume by [tex]k^{3}[/tex].
So, this is the importance of using the square of the scale factor to calculate the area of a dilated figure.
What is Square?
Square, in geometry, a plane figure with four equal sides and four right (90°) angles. A square is a special kind of rectangle (an equilateral one) and a special kind of parallelogram (an equilateral and equiangular one).
What is scale factor?
The scale factor is a measure for similar figures, who look the same but have different scales or measures. Suppose, two circle looks similar but they could have varying radii. The scale factor states the scale by which a figure is bigger or smaller than the original figure.
What is dilation?
In mathematics and geometry, a dilation is an enlargement in size or a reduction in size of a mathematical object. We perform a dilation of a shape by placing the shape on a coordinate plane and multiplying each of the coordinates of the vertices of the shape by the same number, called the scale factor.
According to question, we have to explain the importance of using the square of the scale factor to calculate the area of a dilated figure.
When we dilate a square by a scale factor of k, its sides increase by a factor of k, its area by [tex]k^{2}[/tex], and its volume by [tex]k^{3}[/tex].
In mathematics and geometry, a dilation is an enlargement in size or a reduction in size of a mathematical object.
We perform a dilation of a square by placing the shape on a coordinate plane and multiplying each of the coordinates of the vertices of the square by the same number, called the scale factor.
This can also be achieved by multiplying the lengths of each of the sides of a square by the scale factor.
Hence, these are the importance of using the square of the scale factor to calculate the area of a dilated figure.
Learn more about dilation here:
https://brainly.com/question/13176891?referrer=searchResults
#SPJ2
−5.55−8.55c+4.35c answer please
Answer:
-5.55- 4.2c hope this helps
Step-by-step explanation:
solve for x using Logarithm
4^x+6^x =9^x
Helpppppp meeeeeeeeee
Answer:
The temperature needs to rise 1.5 degree C to reach 0 degree C.
Step-by-step explanation:
-1.5+1.5=0
Is the following statement true? Explain.
" For any two angles A and B, cos (A+B)=cos (A)+cos (B) "
Step-by-step explanation:
We can prove the statement is false by proof of contradiction:
We know that cos0° = 1 and cos90° = 0.
Let A = 0° and B = 90°.
Left-Hand Side:
cos(A + B) = cos(0° + 90°) = cos90° = 0.
Right-Hand Side:
cos(A) + cos(B) = cos(0°) + cos(90°)
= 1 + 0 = 1.
Since LHS =/= RHS, by proof of contradiction,
the statement is false.
Given an absolute value function f(x)=|x|, what is the effect of adding a constant k to the function?
Answer: the graph of the resulting function, |x| + k, is the graph of f (x) shifted k units up
Step-by-step explanation:
just took the test
Evaluate a2 − 2b for a = 2 and b = −4.
The measures of two complementary angles are described by the expression(13y+12) and (20y+12). Find the measures of angles
Step-by-step explanation:
complementary angles means that both of them together = 90
13y +12 + 20y + 12 = 90
add all y together and numbers together
33y + 24 = 90
solve for y
33y= 66. y= 2
now let's get the measurements of the angles
13(2) + 12= 38
20(2) + 12= 52
A line has a slope of -1/10
and includes the points (1, -6) and (t, -5). What is the value of t?
Answer:
-9
Step-by-step explanation:
Here we use the slope formula: m= y2-y1/x2-x1. We simply plug in the numbers we know: -1/10 = -5+6/t-1. Then we solve for t. Multiply both sides by (t-1) so -1/10 (t-1)= 1. Then multiply both sides by -1/10 so t-1= -10 and then add one to both sides so t=-9.
In a marketplace, a box of peaches can be purchased for $77.95 per box. One box
contains 78 peaches. How much would you have to pay to buy 4 peaches?
(Hint: Convert 4 peaches into dollars.)
Round your answer to the nearest hundredth. Do not type the units ($) in the space
below.
Answer:
4
Step-by-step explanation:
This question can be solved by proportions, using rule of three.
We have that:
You buy 78 peaches for $77.95. How much you pay to buy 4 peaches?
78 peaches - $77.95
4 peaches - x
[tex]78x = 4*77.95[/tex]
[tex]x = \frac{4*77.95}{78}[/tex]
[tex]x = 4[/tex]
You pay $4 for 4 peaches.
Which graph represents x > 23
A. 23 To the right
B. 23 to the left
In a number line?
Answer:
eStep-by-step explanation: