Answer:
[tex]Area = 4 \pi \ cm^2[/tex]
Step-by-step explanation:
[tex]Area = \pi r^2 = \pi \times 2^2 = 4 \pi \ cm^2[/tex]
Answer:
A = 4 cm squaree
this us because u multiply π r and square it. sorry if it's confusing
the graphs of f(x) =-2x and g(x)=(1/2)^z are shown
Answer:
f(x)-3x+5 and g(x)=4+5 is it true ?Step-by-step explanation:
Assuming the trend that exists in the data set below applies to all students, how long should Trevor study if
he want to get at least a 75% on the test?
Answer:
He should study for at least 88 minutes
Step-by-step explanation:
The missing parameters are:
[tex]y = 0.36805x + 42.6864[/tex] --- equation of trend
[tex]y \to grade[/tex]
[tex]x \to time[/tex]
Required
x when [tex]y = 75[/tex]
[tex]y = 0.36805x + 42.6864[/tex] becomes
[tex]75 = 0.36805x + 42.6864[/tex]
Collect like terms
[tex]0.36805x = 75 - 42.6864[/tex]
[tex]0.36805x = 32.3136[/tex]
Solve for x
[tex]x = \frac{32.3136}{0.36805}[/tex]
[tex]x = 87.80[/tex]
[tex]x \approx 88[/tex]
the number of calls received by an office on Monday morning between 8:00am and 9:30 am has a mean of 3.Calculate the probability of getting no more than 3 calls between eight and nine in the morning.
Answer:
Step-bLet X be the number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM.
In mathematical terms,
X
∼
P
o
i
s
s
o
n
(
2
)
.
The PMF of the random variable X is given as,
P
(
X
=
x
)
=
e
−
2
×
2
x
x
!
f
o
r
x
=
0
,
1
,
2
,
.
.
.
.
.
=
0
E
l
s
e
w
h
e
r
e
The probability of getting no more than 3 calls between eight and nine in the morning is obtained by the following way,
P
(
X
≤
3
)
=
P
(
X
=
0
)
+
P
(
X
=
1
)
+
P
(
X
=
2
)
+
P
(
X
=
3
)
=
e
−
2
×
2
0
0
!
+
e
−
2
×
2
1
1
!
+
e
−
2
×
2
2
2
!
+
e
−
2
×
2
3
3
!
=
0
.13534
+
0
.27067
+
0
.27067
+
0
.18045
=
0
.85712
Hence the probability of getting no more than 3 calls between eight and nine in the morning is 0.85712.y-step explanation:
i think of a number, multiply it by 3, add 4 and square the answer
Step-by-step explanation:
I can read your mind you know
just ask me how
and see the magic
think of any number,
add it by 3 then by 5 then by 1.
multiply it by two
divide it by two
subtract the first number you thought of from your current number
your answer will be 9
I'm I correct ?
Answer:
2 x 3 = 6 + 4 = 10 squared = 100
Step-by-step explanation:
The square of a number is the number that can be multiplied by itself to get that specific number, for example 10 x 10 = 100
Find the length x
Plz help ASAP
Answer:
Step-by-step explanation:
Answer this equation
1 . Y/-7 = -7
Step-by-step explanation:
Y/-7= -7
Cross multiple
-7× -7 =Y
49 =Y
Answer:
y = 49
Step-by-step explanation:
y ÷ - 7 = - 7
y ÷ - 7 × - 7 = - 7 × - 7
y = 49
Find the gradient of the line segment between the points (-4,4) and (0,12).
gradient = 12-4 ÷0-(-4)=8÷4=2
Answer:
gradient = 2
Step-by-step explanation:
Calculate the gradient m using the gradient formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 4, 4) and (x₂, y₂ ) = (0, 12)
m = [tex]\frac{12-4}{0+4}[/tex] = [tex]\frac{8}{4}[/tex] = 2
Please help this is due today!!
Answer:
c is the answer
Step-by-step explanation:
Graphs really aren't my thing but I really feel like it is c
GOOD LUCK HOPEFULLY YOU GET A GOOD GRADE
Which of the following is a solution set to the equation x^2-10x+16=0
Answer:
x=2. or. x=8
Step-by-step explanation:
x^2-10x+16=0. s=-10
x^2-8x-2x+16=0. p=16
x(x-8)-2(x-8)=0. [-8,-2]
(x-2)(x-8)
x=2. or. x=8
Deliana thinks she needs to solve 5 ÷ 6. Do you agree with her? Explain why or why not.
Answer:
5 is small 6 is bigger
Step-by-step explanation:
because 6 is bigger and 5 is small than divide
Mr. K needs to hire an electrician. The electrician charges $82 for making a house call and an additional $55.00 per hour of labor. If Mr. K only budgeted $300 for the electrical repair, write, solve, and graph an inequality that shows the maximum amount of hours of labor Mr. K can afford to hire the electrician.
Answer:
[tex] \displaystyle4 \: \text{hours}[/tex]
Step-by-step explanation:
we are given that,
The electrician charges $82 for making a house call an additional $55.00 per hour of laborMr. K only budgeted $300 for the electrical repairlet the hours be h
from the first condition we obtain:
[tex] \displaystyle 82[/tex]
from the second condition we ge:
[tex] \displaystyle 82+ 55h[/tex]
from the final condition we acquire:
[tex] \displaystyle 82 + 55h \leqslant 300[/tex]
to figure out the hour we have to solve the equation to do so
cancel 82 from both sides:
[tex] \displaystyle 55h \leqslant 215[/tex]
divide both sides by 55:
[tex] \displaystyle h \leqslant 3.9636 \dots[/tex]
since 3.96.... is very close to 4 he can maximum afford 4 hours of labor
[tex] \displaystyle h = 4[/tex]
refer the attachment
MATH WIZZES, PLEASE HELP ME OUT HERE!! I NEED THIS PROBLEM DONE SOON, BECUASE IT'S DUE IN LIKE 2 MINUTES HELLPPPPPPP
The equations in this system were added to solve for y. What is the value of y?
x + 6 y = 10. -x + 3 y = -15. = 9 y = -5.
Answer:
y=-5/9
Step-by-step explanation:
it says 9y=-5
divide both sides by 9
y=-5/9
Help please !! Thank u
Answer:
parallel = same slope (-2x)
so it's y=-2x + b
let's find b by plugging in 1 for x and 3 for y (the coordinates)
3 = -2*1 + b
3 = -2 + b
5 = b
there you have it:
y = -2x +5
brainliest would really be appropriated (possible when someone else also leaves an answer)
Question and choices are in the photo please explain the answer
Step-by-step explanation:
but sorry i can't get the answer of (2x-1) =3 (x+5) because the answer of this came -16
How do you find the perimeter of a rectangle with the dimensions
(x^2+2x-16) ft (length)
and (x+5) ft (width)
Answer:
(2x²+6x-22) ft
Step-by-step explanation:
l = (x²+2x-16) ft
and w = (x+5) ft
the Perimeter =
2(x²+2x-16) +2(x+5)
= 2x²+4x-32+2x+10
= 2x²+6x-22
Roberto has $20 to buy baseballs for his little league team. Each baseball costs $6. How many baseballs Conan he buy?
Answer:
3
Step-by-step explanation:
Sympathetic Division function
Which equation(s) have -4 and 4 as solutions?
A. x2 = 8
B. x2 + 16 = 0
C. 2x2 = 32
D. -3x2 = -48
E. 6x2 + 56 = -40
F 27 - 5x2 = -53
Helppppppppppp meeeeeeeeeee
Answer:
the value of x°= 20°
explanation is in the picture attached below
hope it is helpful to you
Collins middle school's basketball team won 75% of their games if they lost the board games how many games did they win?
The phrase in the original question is:
....if they lost 12 games......
not
....if they lost board games......
Answer:
36 games won
Step-by-step explanation:
Given
[tex]\%Win = 75\%[/tex]
[tex]Lost = 12\ games[/tex]
Required
Number of games won
Give that: [tex]\%Win = 75\%[/tex]
The percentage loss is:
[tex]\%Loss = 100\% - \%Win[/tex]
So, we have:
[tex]\%Loss = 100\% - 75\%[/tex]
[tex]\%Loss = 25\%[/tex]
Calculate the number of games (n) using:
[tex]Lost = \%Loss * n[/tex]
[tex]12 = 25\% * n[/tex]
Make n the subject
[tex]n = \frac{12}{25\%}[/tex]
[tex]n = 48[/tex]
So, the games won is:
[tex]Win = n - Lost[/tex]
[tex]Win = 48 - 12[/tex]
[tex]Win = 36[/tex]
(b) In a continuous series the average weight of some students is 75 kg and the sum of the weights is 6000 kg. Find the number of students.
Answer:
the number of students is 80
Mark is building a sandbox inside a play area. How much play area remains outside of the sandbox?
Answer:125
Step-by-step explanation:
find the positive square root of 0.00822649
Answer:
Step-by-step explanation: Although you did not specify, perhaps your were supposed to find some way to do this without a calculator. First ignore the decimals and think about 822649
900 * 900 = 810000 so the first digit of the square root is a 9
The last two numbers are 49 so the square root ends in a 7
Assume the square root is 9a7 where a is not known and expand
(907 + 10a)^2 = 822649 + other terms in a = 822649
a = 0, and we have found 822649 = 907 ^2
0.00822649 is obtained from 822649 by moving the decimal point 8 places
That tells us the square root is obtained from by moving 4 places
The answer is 0.0907......
Find the value of x.
6 3 2 x
Answer:
[tex]x=4[/tex]
Step-by-step explanation:
To solve this problem, one must use the angle bisector theorem. This theorem provides a proportion between the sides formed by an angle bisector. One can apply this theorem here by forming the following proportion,
[tex]\frac{BA}{BC}=\frac{AD}{DC}[/tex]
Substitute,
[tex]\frac{x}{6}=\frac{2}{3}[/tex]
Cross products,
[tex]3(x)=2(6)[/tex]
Simplify,
[tex]3x=12[/tex]
Inverse operations,
[tex]3x=12\\\\x = 4[/tex]
Question
Solve the inequality b – 27 > 3 and write the solution in interval notation, using improper fractions if necessary.
Answer:
(30, ∞)
Step-by-step explanation:
b – 27 > 3
Add 27 to both sides
b > 30
In interval notation
(30, ∞)
Answer:
(30,∞ )
Step-by-step explanation:
b> 27+3
b> 30
Write an equation of a line in slope-intercept form with a slope of -12 and a y-intercept of 3.
a
y = 3x - 12
y = -12(3)+b
Ob
Ос
3= -12x + b
Od
y=-12x + 3
Answer:
y = -12x + 3
Step-by-step explanation:
The slope-intercept form of an equation can be written as y = mx + b where m is the slope and b is the y-intercept. We are given both values, so we can plug them into the equation to get:
y = mx + b
y = -12x + 3
Which of the following best describes the relationship between Angle a and angle b in the image below ( Choose all that apply)
You are correct in selecting "linear pairs" since they form a straight line.
The angles are also adjacent because they're next to each other like that. In fact, "linear pair" means "adjacent and supplementary".
The angles are not complementary because they don't add to 90 degrees. Instead, they add to 180 degrees so that's what makes them supplementary.
The angles are also not vertical angles. They would need to be opposite one another in an X configuration for this to happen. This means vertical angles cannot be adjacent, and vice versa.
2 Answers: Choice B and Choice CAngle a and angle b within the image are the linear pairs of angle within the image below.
What is the angle?It is a direction from which an individual observe something.
How to determine relationship between angles?From the figure we are able to find that angle a and angle b are the linear pair because these are formed when two lines intersect one another at one point. The angles are said to be linear if they're adjacent to every other after the intersection of the 2 lines. The sum of angles of a linear pair is often adequate to 180 degrees.
Hence the angle a and angle b are linear pairs.
Learn more about linear pairs at https://brainly.com/question/2065148
#SPJ2
factorise fully the expression 2d^2-7d
Answer:
d(2d-7)
Step-by-step explanation:
2d^2 -7d
take common
=d(2d-7)
[tex] \large \boxed{ \rightarrow d(2d - 7)}[/tex]
Solution :[tex] \rightarrow2d {}^{2} - 7d[/tex]
[tex] \rightarrow d(2d - 7)[/tex]
[tex] \mathfrak{hope \:it \: helps \: you.....}[/tex]
Can you guys help me
I don’t understand this equation. m= -3 and b = 3
can you please put the equation so i can answer it?
thank you!