Answer:
1. 8x-2
2. -2x -13
(Since I couldn't do it on the other one lol)
Step-by-step explanation:
Shean has a piece of string 7/8 meter long. He uses 1/5 of he piece of string to tie a package and cuts the rest into 5 equal parts. What is the length of the pieces.
Answer:
7/50 meter
Step-by-step explanation:
Total piece of string = 7/8 meter
Used string = 1/5 of the piece of string
Used string =
1/5 of 7/8 meter
= 1/5 × 7/8
= 7/40 meter
Balance = Total string - used string
= 7/8 - 7/40
= 35-7/40
= 28/40
Balance = 28/40 meter
cuts the rest into 5 equal parts. What is the length of the pieces.
28/40 ÷ 5
= 28/40 × 1/5
= 28 / 200
= 7/50 meter
Length of each piece = 7/50 meter
Hi, I need help pretty plz! If anyone has the right answers, plz share! Thank u!
(Screenshots below)
Answer:
squareroot 18, 9, 4pi, 14
b - squareroot of 4 is 2and the squareroot of 9 is 3. 5 is between 4 and 9, meaning it must be between 2 and 3. Also a negative so on the left of the 0.
c - sqrt of 1 is 1 and sqrt of 4 is 2. between 1 and 2. closer to 2 (because 3 is closer to 4) than to 1.
j=irrational cant be in fraction form
k=rational is in raction form
l= rational it equals 4 which is an integer
m=irrational because it has pi in it
for the graph...
j=3.46
k=1.88
l=4
m=4.71
Step-by-step explanation:
Use a calculator or think about perfect squares to determine answers.
rational can be a fraction or integer, irrational has pi or a decimal.
45% of the 1,000 coffee mugs at Krysta's Pancake House are dirty. How many dirty coffee mugs are there at the pancake house? free brainliest only if u get it right
Answer:
450
Step-by-step explanation:
.45*1000=450
which equation is equivalent to 19x+12y=17?
Answer:
A
y=-19/12x+17/12
Step-by-step explanation:
Write in slope-intercept form,y=mx+b
The equation i.e. 19x + 12y = 17 equivalent to the [tex]y = \frac{19}{12}x + \frac{17}{12}[/tex].
Given that,
The equation i.e. 19x + 12y = 17.We need to find the equation i.e. equivalent to the above.Based on the above information, the calculation is as follows:
19x + 12y = 17
Here we need to solve it for y
[tex]y = \frac{19}{12}x + \frac{17}{12}[/tex]
Therefore, we can conclude that the first option is correct.
Learn more: brainly.com/question/6201432
Which equation represents the line with a slope of
5
6
that passes through the point
(
−
2
,
1
)
?
Seven friends shared a Two-thirds pound bag of pistachios. If each person had the same amount of nuts, how many pounds did each person eat?
StartFraction 2 Over 21 EndFraction
StartFraction 3 Over 14 end Fraction
4 and two-thirds
10 and one-half
Answer:
3 over 14.
Step-by-step explanation:
The diameter of a circle swimming pool is 15 ft find the circumference to the nearest hundredth
The circumference of the circular swimming pool is given by C = 47.12 feet
What is a Circle?A circle is a closed figure in which the set of all the points in the plane is equidistant from a given point called “center”. Every line that passes through the circle forms the line of reflection symmetry. Also, the circle has rotational symmetry around the center for every angle
The circumference of circle = 2πr
The area of the circle = πr²
where r is the radius of the circle
The standard form of a circle is
( x - h )² + ( y - k )² = r²,
where r is the radius of the circle and (h,k) is the center of the circle.
The equation of circle is ( x - h )² + ( y - k )² = r²
For a unit circle , the radius r = 1
x² + y² = r² be equation (1)
Now , for a unit circle , the terminal side of angle θ is ( cos θ , sin θ )
Given data ,
Let the circumference of the circular swimming pool be C
Now , the diameter of the swimming pool D = 15 feet
So , the radius of the circular pool r = D / 2
The radius r = 7.5 feet
Now , circumference of circle = 2πr
So , on simplifying , we get
The circumference of the circular swimming pool C = 2π ( 7.5 )
The circumference of the circular swimming pool C = 15π
The circumference of the circular swimming pool C = 47.12 feet
Hence , the circumference of the circular swimming pool is 47.12 feet
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If MJKL is congruent to UVWX, then
ML is congruent to UV
MJ is congruent to WX
JK is congruent to VW
DUX is congruent to JK
PLEASEEEEEEEE HELPPPP!
Which equation illustrates the associative property?
1. x + y + z = x+y+z
2. x(y + 2) = xy + XZ
3. x+y+z= z + y + x
4. (x + y) + z = x + (y + z)
Answer:
four
Step-by-step explanation:
the associative property is when what ever is in the parentheses can be moved around and it won’t matter because I’ll give the same answer. One dosent have parenthese, two does but the x will distribute into the equation, three there is no parentheses, and four has parentheses and you can’t distribute.
I need help with this please and thanks
Answer:
the slope of the line is 4/5
Step-by-step explanation:
hopefully this helps :)
Answer:
4/5
Step-by-step explanation:
you could do rise over run
or
subtract the y values 6 and 2 to get 4
and then subtract 6 and 1 to get 5
this is called the change in y over the change of x
Hi My Name Is Christine I am New on here and I need help on math I'm usually good at it but I need help please
Also before I put the question I need a Boy Named Scott They always seem to be smart So if your name is Scott HELP
5x-3x+58=?
Answer: 2x+58
Step-by-step explanation:Combine Like Terms:
=5x+−3x+58
=(5x+−3x)+(58)
=2x+58
Simple stuff
5+5=______
Answer:
10?
Step-by-step explanation:
shala bought a pen on sale. she saved 17 percent of the original price of 29$. about how much money did she save?
A.1$
B.5$
C.10$
E.20$
Answer:
B or E im not sure
Step-by-step explanation:
$4.93
Step-by-step explanation
That's the exact answer but going of your answers it'll be 5$
Discount:
(29 x 17)/100 = $4.93
Final Price:
29 - 4.93 = $24.07
Answer:
the answer for edge 2021 is 5
Step-by-step explanation:
Please mark brainliest
an architect is designing a commemorative steel arch in the shape of a parabola. its axis is vertical and its feet are 300 yd. apart. If the focus of the parabolic arch is to be 80 yd. above the ground, how high must the arch be?
Answer:
125yd
option b is correct
The height of the arch from the ground will be 125 yards.
Given information:
An architect is designing a commemorative steel arch in the shape of a parabola.
Parabola is vertically placed and its legs are 300 yards apart.
The focus of the parabola is 80 yards above the ground.
Let a be the distance of focus from the vertex of the parabolic arch.
So, the equation of parabola will be,
[tex]x^2=-4ay[/tex]
Assume the origin is placed on the vertex of the parabola.
So, the coordinates of the legs will be,
(-150, -(80+a)) and (150, -(80+a))
Satisfy the above point with the equation of parabola as,
[tex]x^2=-4ay\\150^2=4a(80+a)\\a^2+80a-5625=0[/tex]
Solve the above quadratic equation as,
[tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\a=\dfrac{-80\pm\sqrt{80^2+4\times 1\times5625}}{2}\\a=\dfrac{-80\pm170}{2}\\a=-125, 45[/tex]
The value of a can't be negative. So, [tex]a=45[/tex].
So, the height of arch will be,
[tex]80+a=80+45\\=125\rm\;yd[/tex]
Therefore, the height of the arch from the ground will be 125 yards.
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In a sequence, each number after the first number is obtained by adding 4 to the previous number. If the first number in the sequence is 7, which of the following expressions represents the nth number in the sequence?
A 7+4n
B 7+(4n−1)
C 7+4(n−1)
D 7+4(n+1)
Expression (C) [7 + 4(n - 1)] represents the nth number in the given arithmetic sequence.
What is an arithmetic sequence?A series of numbers called an arithmetic progression or arithmetic sequence has a constant difference between the terms. An arithmetic progression with a common difference of 2 is found, for instance, in the numbers 5, 7, 9, 11, 13, and 15. Starting with a number and repeatedly adding a fixed constant (d) to it is an easy technique to create a series.So, in the arithmetic sequence, there is a formula to find the nth term in the series.
Formula for aₙ term is: aₙ = a₁ + d(n - 1)Where d is the common difference and n is the number of terms.Here, d is 4 and a₁ is 7.Then, For aₙ term:
aₙ = a₁ + d(n - 1)aₙ = 7 + 4(n - 1)Therefore, expression (C) [7 + 4(n - 1)] represents the nth number in the given arithmetic sequence.
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which region on the unit circle contains a cube root of - 8 - 8i
O in quadrant I
O in quadrant II
O on the imaginary axis
O on the real axis
Answer:
A. in quadrant l
Step-by-step explanation:
Edge 2020
Answer: A.) in quadrant I
Step-by-step explanation: edge 2023
What are some parent functions with a domain of all real numbers?
Answer:
The identity function has a slope of m = 1 and a y-intercept of (0, 0) .
Step-by-step explanation:
The identity function is a special type of linear function having the form f(x) = x . The domain of this function is all real numbers and the range consists of all real numbers .
Solve the equation: 3(x - 5) = x + 21
( please help me )
Answer:x=18
Step-by-step explanation:
3(x-5)=x+21
Distribute the 3
3x-15=x+21
Add 15 to each side
3x=x+36
Subtract x from each side
2x=36
Divide each side by 2
x=18
It is estimated that 88% of senior citizens suffer from sleep disorders and 7% suffer from anxiety. Moreover, 5% of senior citizens suffer from both sleep disorders and anxiety. a)Given that a senior citizen suffers from anxiety, what is the probability that he or she also suffers from a sleep disorder? Round your answer to the nearest hundredth. B) Find the probability that a senior citizen suffers from anxiety, given that he or she has a sleep disorder. Round your answer to the nearest hundredth.
Answer:
a) 0.71
b) 0.06
Step-by-step explanation:
We solve using Baye's Theorem
It is estimated that 88% of senior citizens suffer from sleep disorders and 7% suffer from anxiety. Moreover, 5% of senior citizens suffer from both sleep disorders and anxiety.
We have Two events
A and B
Events A = 88% of senior citizens suffer from sleep disorders
P(A) = 0.88
Event B = 7% suffer from anxiety
P(B) = 0.07
Moreover, 5% of senior citizens suffer from both sleep disorders and anxiety.
P(A and B) = 0.05
a)Given that a senior citizen suffers from anxiety, what is the probability that he or she also suffers from a sleep disorder? Round your answer to the nearest hundredth.
This is calculated as:
P(A and B)/P(B)
= 0.05/0.07
= 0.7142857143
Approximately = 0.71
B) Find the probability that a senior citizen suffers from anxiety, given that he or she has a sleep disorder. Round your answer to the nearest hundredth.
This is calculated as:
P(A and B)/P(A)
= 0.05/0.88
= 0.0568181818
Approximately = 0.06
Maria borrowed $3,000 at a simple interest rate of 4% per year. How much did she have to repay after 4 years?
$3480
$480
$7800
$4800
Answer:
$3480
Step-by-step explanation:
r numbers 13 - 17, use f(x) =
3x – 9
1+1
13) Where is the y-intercept?
A. (0-9)
B. (0,-1)
C. (0, -3)
D. (0,9)
Answer:
A is correct
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
13-17=-4
f(3x-9)=6xwhere you f=6x-4=
-3 -6
we keep 3
we change subtraction to
opposite of 6 is
new expression is:
now recall the adding integers song and solve
difference:
Answer:
-9
Step-by-step explanation:
First rewrite the equation as:
-3 + (-6) <- (we can do that because of additive inverse)
Then just add -3 and -6 to get -9
HELP ME ASAP PLEASE ?!?Give the coordinates of point A.
Answer:
D
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)
Answer:
The answer is A (-5, -2)
Step-by-step explanation:
bottom left is the third quadrant and it is negative negative (-x,-y)
A polynomial function has a root of –3 with multiplicity 2, a root of 0 with multiplicity 1, a root of 1 with multiplicity 1, and a root of 3 with multiplicity 2. If the function has a positive leading coefficient and is of even degree, which could be the graph of the function?
A telephone poll asked people whether they like playing golf. Of the 10,000 people polled, 5% like playing golf. How many people said they like playing golf?
Answer:
500 people
Step-by-step explanation:
To find how many people said they liked golf, find 5% of 10,000, by multiplying 10,000 by 0.05:
10,000(0.05)
= 500
So, 500 people said they liked playing golf
Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x=12. y=-10 when x=2
need help asap (mathmatics.)
Answer:B
Step-by-step explanation:
Answer: the correct answer is B (3,0)
Step-by-step explanation: HOPE THIS HELPS HAVE A GOOD DAY
Mia has $50 on a gift card to her favorite coffee shop. Each time she visits the coffee shops she spends $3.75 on her favorite drink. Choose the equation that represents the relationship between x, the number of times she visits the coffee shop, and y, the total amount on her gift card.
Given:
Value of Gift card = $50
Each time she visits the coffee shops she spends $3.75 on her favorite drink.
To find:
The equation for the given situation.
Solution:
Let x be the number of times she visits the coffee shop, and y be the total amount on her gift card.
Cost of her favorite drink for one time = $3.75
Cost of her favorite drink for x times = $3.75x
Value of gift card is $50. So,
Amount on her gift card = 50 - Cost of her favorite drink for x times
[tex]y=50-3.75x[/tex]
Therefore, the required equation is [tex]y=50-3.75x[/tex].
Simplify the ratio 5:20
answer 1:4
explanation:Simplify Ratio 5:20
To simplify the ratio 5:20, we find the greatest common divisor of 5 and 20, and then we divide 5 and 20 by the greatest common divisor.
The greatest common divisor that you can use to simplify 5:20 is 5. Which means the answer to ratio 5:20 simplified is:
1:4
In a random sample of citizens in one town, 21 out of 200 people were left handed. Which of these is the best inference to
make?
Answer:
A about ten percent of the town is left handed
Step-by-step explanation:
20 of 200 is ten percent and this town could be an outlier in left handed populations.