Please help
Math experts urgent thank you very much
Answer:
The left table's answers are 5, 30, and 60.
The right table's answers are 20, 36, and 22.5
And the bottom table's answers are 32, 12, and 40
Hope that helps!
please show all algebraic steps
under the same denominator r(r-4)
[6(r-4)] / (r(r-4)) + (4r) / (r(r-4)) = 1
(6r - 24 + 4r) / (r(r-4)) = 1
10r - 24 = r (r-4)
10r - 24 = r² - 4r
r² - 14r + 24 = 0
Δ = (-14)² - 4*1*24 = 100 = 10²
x' = (14 + 10) / 2 = 12
x" = (14 - 10) / 2 = 2
i'm french - so I answered as we learn in France :)
How many solutions does it have?
3x+4 = 3x+4
Answer:
it has no solution.......
answer will be 3x+4 = 3x+4 i.e, 0=0 ,so
but if 3x+4 = 0 , x= -4/3 . Its a linear equation and has only one solution
Answer:
Infinitely many solutions.
Step-by-step explanation:
3x + 4 = 3x + 4
3x = 3x
Divide 3 from both sides.
x = x
Therefore, this equation has infinitely many solutions.
----------------------------------------------------------------------------------------------------------
Example ~
x = 1
(3 × 1) + 4 = (3 × 1) + 4
3 + 4 = 3 + 4
7 = 7
Which relationships describe angles 1 and 2?
Select each correct answer.
O complementary angles
D vertical angles
O adjacent angles
O supplementary angles
Answer:
Complementary angles
Adjacent angles
Step-by-step explanation:
Complementary Angles: Two angles whose measures sum to 90°
Vertical Angles: a pair of non-adjacent angles formed by the intersection of two straight lines. Vertical angles are congruent
Adjacent Angles: Two angles that share a common side and a common vertex, but don't overlap.
Supplementary Angles: Two angles whose measures sum to 180°
Therefore, angles 1 and 2 are:
Complementary anglesAdjacent angleslab technician cuts a 29 in piece of glass tubing into two pieces. One piece is 2 in longer than the other. How long are the pieces?
Answer:
6.25 & 8.25
Step-by-step explanation:
im probably wrong lol-
29/2 = x+x+2
14.5=2x+2
12.5=2x
therefore x = 6.25 but to fin the other x add 2
so then the longer piece would be 8.25
[tex]\red\leadsto[/tex]Let one piece of glass tubing be of length x in ,
[tex]\green\leadsto[/tex]then other piece will be of length(x+2) in since it is 2 in longer than other piece
[tex]\\[/tex]
>>>Total length of both the piece
= 29 in _ _ _ (1)
>>>Total length of both pieces = length of shorter piece + length of longer piece
[tex]\:\implies[/tex] Total length of both pieces = x+(x+2) _ _ _(2)
[tex]\\[/tex]
Equating (1) and (2)
[tex]\:\implies[/tex]x+(x+2) = 29
[tex]\:\implies[/tex]x+x+2= 29
[tex]\:\implies[/tex]2x+2 = 29
[tex]\:\implies[/tex]2x= 29-2
[tex]\:\implies[/tex]x= 27/2
[tex]\\[/tex]
>>Length of smaller piece =
[tex]\:\implies[/tex]x = 27/2 in
>>> Length of larger piece =
[tex]\:\implies[/tex](x+2) = 27/2 + 2 = 31/2 in
[tex]\\[/tex]
[tex]\longrightarrow[/tex]Thus, The pieces are 27/2 in and 31/2 in long
What is the median of the data displayed in this box-and-whisker plot?
42
49
54
57
Answer:
49
Step-by-step explanation:
because it is the middle
Rewrite each equation without absolute value for the given conditions. y = |x-5| + |x+5| if -5 < x < 5
Answer:
y=10
Step-by-step explanation:
please help me with this
Answer:
B
Step-by-step explanation:
Consider this:
Cheese Dip --> Burrito --> Chicken
Cheese Dip --> Burrito --> Beef
Assume Cheese Dip is your starting point and Chicken / Beef are your ending points. We already have two combos here.
Now looking at the diagram, we should see eight ending points in total.
Therefore, there would be eight combinations for Lelia to choose.
Calculator
cm
n
8 cm
This figure represents a small paperweight. The plan is to cover
20% of the total surface area, including the bottom face, of the
paperweight with stickers.
15 cm
How much surface area will be covered with stickers?
10 cm
223.8 cm
11 cm
17 cm
895.2 cm?
1119 cm
5595 cm
1
2
3
4
5
Answer:
223.8
Step-by-step explanation:
I failed the test to get the answer
Answer:
the answer is 223.8
Step-by-step explanation:
EASY ANSWER FOR BRAINLEST QUICK!
Which inverse operation is needed to isolate the variable in the equation 4.75x = 24.7?
Group of answer choices
Multiply both sides by 4.75.
Divide both sides by 4.75.
Subtract 4.75 from both sides.
Add 4.75 to both sides.4.75x = 24.7?
Answer:
Divide both sides by 4.75
Step-by-step explanation:
The goal is to get x by itself and 4.75 is attached by multiplication so doing the inverse will leave x alone.
Hope this helps! Have a great day!
Hellllllllllllllllllllllp
Answer:
C
Step-by-step explanation:
Reflect over y axis the rotate 180 degrees.
Pls helpppp asap i really need help
students from three grade levels were surveyed
Answer:
what do u mean surveyed?
Answer:
The choices CDE
Step-by-step explanation:
CDE
I need an answer for number 5
Answer:
Step-by-step explanation:
Go
25% of £18 i need help fast pls
Answer:
like they said
Step-by-step explanation:
the answer is 4.5
If you can make 1 whole pencil out of 4 pencil pieces and you are given 16 pieces. How man whole pencils can you make? (answer is not 4)
Answer:
is there multiple choice options, I want to help but I'm not sure why it isn't 4
The daily wages of a carpenter are increased from $40 to $48. Find the
percent increase?
Answer:20
Step-by-step explanation: so first take out the amount of salary increased so it will be- 48-40=-8
After take out the percentage of the increased amount which was $-8 and the original amount which was $40 so 8/40 × 100
Percentage increase would be 16.67% or if thats not right try 20%
i hope this helps!!!!
As an estimation we are told £3 is €4. Convert £63.20 to euros. Give your answer rounded to 2 DP.
Answer:
£79
Step-by-step explanation:
- Multiply 1.25
- 1.25 x 63.20
Tip:
We multiply from 1.25 because to get from 3 euros. 4 pounds is 1.25
The cone below has a base diameter of 20x cm. When the base of
The cone rests on horizontal ground it exerts a pressure of 650 N/m^2
a) Calculate the weight of the cone in terms of x and pie
Since the cone has a base diameter of 20x cm, the weight of the cone in terms of x and pie is 6.50πx² N
Pressure on the groundThe pressure on the horizontal ground due to the cone is given by P = W/A where
W = weight of cone and A = area of base of coneWeight of the coneMaking W subject of the formula, we have
W = PA
Since
P = pressure = 650 N/m² and A = area of base of cone = πd²/4 where d = diameter of base of cone = 20x cm = 0.2x mSo, W = PA
W = Pπd²/4
W = Pπ(0.2x)²/4
W = 0.04Pπx²/4
W = 0.01Pπx²
Substituting the values of the variables into the equation, we have
W = 0.01Pπx²
W = 0.01 × 650 N/m² × π(x m)²
W = 6.50πx² N
So, since the cone has a base diameter of 20x cm, the weight of the cone in terms of x and pie is 6.50πx² N
Learn more about weight of cone here:
https://brainly.com/question/10062592
Please help A.S.A.P
( I will mark brainliest
Answer:
A, C, E
Step-by-step explanation:
A health research institute collects information from 20 individuals on the number of years they have spent smoking cigarettes, and their age of death. The data is summarized below:
∑x=1257
∑y^2=836
∑x^2=98823
∑y=116
∑(xy)=8249
Find the correlation coefficient (r):
The correlation coefficient of the health research institute data measures the relationship between the age and the years of the smokers
The correlation coefficient is 0.53
How to calculate the correlation coefficientThe correlation coefficient (r) is calculated as:
[tex]r = \frac{n(\sum xy) - \sum x \sum y}{\sqrt{[n \sum x^2 - (\sum x)^2][n\sum y^2 - (\sum y)^2}}[/tex]
Using the given parameters, we have:
[tex]r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1257^2][20 * 836 - 116^2}}[/tex]
Evaluate the exponents
[tex]r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1580049][20 * 836 - 13456}}[/tex]
Evaluate the products
[tex]r = \frac{164980 - 145812}{\sqrt{[1976460 - 1580049][16720 - 13456}}[/tex]
Evaluate the differences
[tex]r = \frac{19168}{\sqrt{[396411*3264}}[/tex]
Evaluate the product
[tex]r = \frac{19168}{\sqrt{1293885504}}[/tex]
Evaluate the root
[tex]r = \frac{19168}{35970.6}[/tex]
Evaluate the quotient
[tex]r = 0.53[/tex]
Hence, the correlation coefficient is 0.53
Read more about correlation coefficient at:
https://brainly.com/question/1564293
Both equations in a linear-quadratic system of equations can have two variables that are squared.
True or False
A store paid $240.00 for a dining table.The manager of the store marks up the table by 125%.what is the new price of the dining table?
Answer:
$300
Step-by-step explanation:
$240 × 125% is $300
We can use the method of calculating the percentage of an amount to find out the discount amount. The new price of the dining table will be $300.
How to calculate unit price of something?Unit means 'single entity', the fundamental constructing block. Usually, it is 1 in mathematics and science.
Thus, unit price of something is price of 1 thing.
Therefore, suppose we're taking about price of mangoes, then unit price will denote the price of 1 mango.
We have been given that A store paid $240.00 for a dining table and The manager of the store marks up the table by 125%.
Therefore, 125% of $240
$240 × 125%
$240 × 1.25
= $300
Hence, the new price of the dining table will be $300.
We can use the method of calculating the percentage of an amount to find out the discount amount.
Learn more about unit price here:
https://brainly.com/question/945712
#SPJ2
given the following formula solve for r. C=2πr
Answer:
[tex]\frac{c}{2\pi } =r[/tex]
Step-by-step explanation:
c = 2πr
→ Divide both sides by 2π
[tex]\frac{c}{2\pi } =r[/tex]
The table below shows the presicted number of words janae cam type ,y, in x minutes
Answer:
answer is b
Step-by-step explanation:
You have a Sweatshirt business you’re selling each Shirt for $20 a piece, If each shirt costs you
$45 a piece to make, how much would you make. If you sell 30 sweatshirts in one day
(Write 2 linear equations and solve)
Answer:
I don't know
Step-by-step explanation:
it depends on your definition and question
Brainliest if correct
Answer:
1
2
–
2
5
=
1 × 5
2 × 5
–
2 × 2
5 × 2
=
5
10
–
4
10
=
5 – 4
10
=
1
10
Step-by-step explanation:
Order from least to greatest = 9.7 x 103 = 8.2 x 10-7 = 1.2 x 103 = 3.4 x 106 = 5.8 x 10
Step-by-step explanation:
there's no such that in mathematics
For every 15 seventh graders in band, there are 20 eighth graders. What is the ratio of eighth graders to seventh graders?
Answer:
The answer is 20:15, or 4:3 simplified
There are 5,000 fish in the pond and the population is increasing by 3.1% each year. Write an equation to determine the fish population after x years
If there are 5,000 fish in the pond and the population is increasing by 3.1% each year.
After one year the population would be 15500?
so [tex]5000=x*3.1[/tex]