Step-by-step explanation:
2x +3 +x-5
3x+3+(-5)
3x +(-2)
x= -2÷3
x=-6
HOPE IT HELPEDI NEED THIS ANSWERED ASAP PLEASE HELP!!! select the correct answer for points
Answer:
C. 120°
Step-by-step explanation:
length of arc = 4π cm
r = 6 cm
central angle = s/r
=> central angle = 4π/6
=> central angle = 2π/3 radians
In degrees,
central angle = (2π/3)(180/π) = 120°
hope this helps and is right. p.s i really need brainliest :)
A cone has a surface area of 200 pi square inches. If the radius of the
cone is 10 inches, find the length of the slant height.
Answer:
[tex]20\:\mathrm{in}[/tex]
Step-by-step explanation:
The lateral surface area of a cone is given by [tex]A=\pi r\ell[/tex], where [tex]r[/tex] is the radius of the base of the cone and [tex]\ell[/tex] is the cone's slant height.
Solving for [tex]\ell[/tex]:
[tex]200\pi=10\pi\ell,\\\ell=\frac{200\pi}{100\pi}=\boxed{20\:\mathrm{in}}[/tex]
*Note: It is implied that the surface area of 200 pi square inches is lateral surface area and not total surface area, because it is impossible to obtain a total surface area of 200 pi with a radius of 10 inches.
GEOMETRY/WILL MARK BRAINLIST
GOD BLESS WHAT IS THE ANSWER TO THIS?
Answer:
Option 1
Step-by-step explanation:
It's asking me to write 20 words so blah blah blah.
Calculate the interquartile range from the given box plot
Answer:
IQR = 3
Step-by-step explanation:
The interquartile range (IQR) is the difference between the upper quartile Q₃ and the lower quartile Q₁
Q₃ is the value at the right side of the box , that is Q₃ = 62.5
Q₁ is the value at the left side of the box. that is Q₁ = 59.5
Then
IQR = Q₃ - Q₁ = 62.5 - 59.5 = 3
Help asap please I really need it
Answer:
10 inches
Step-by-step explanation:
If g(t) = 2/ (t + 3), then g (?) = 2/ (4a + 3)
Answer:
may be the answer is g(4a)
Step-by-step explanation:
g(4a) = 2/(4a +3)
't' is replaced by '4a'.
Missing measure help
need help quickly please!
Answer:
86
Step-by-step explanation:
Considering that it is a triangle ABC which means AB = AC + BC AB = 48 + 38 = 86
I think that's it I hope it will help you
help ASAP PLEASE look like a
Answer: B. 1
Step-by-step explanation: A common factor is something that two or more numbers have in common. It is 1 because you multiply 1 by 1 to get 1, and 1 by 2 to get 2.
(1 by 1) = 1
(2 by 1) = 2
These two numbers have the number 1 in common because both 1 and 2 can only be multiplied by 1 and itself to get the number. (That is also what you call prime numbers.)
Which expression represents the volume, in cubic units,
of the shaded part of the sphere?
4/3(10) + 4/3(4)
4/3(10) - 4/3 (4)
4/3(20) + 4/3 (4)
4/3(20) - 4/3 (4)
Answer:
B
Step-by-step explanation:
we have to subtract the volume of the biggest one from the volume of the smallest one
for find the volume it is used the radius, not the diameter
Can a triangle have two 30° angles? two 60° angles? two 90° angles? Explain.
Answer:
Step-by-step explanation:
Two 30 - yes, 180 - 30 - 30 = 120. It is possible for 2 angles to be 30, the remaining angle would also be 120
Two 60 - yes, 180 - 60 - 60 = 60. It is possible for 2 angles to be 60, the remaining angle would also be 60
Two 90 - Not possible. The entire angles of a triangle have to equal 180, this would mean only 2 angles.
Which point is located at (4, -2)?
А
4
10
3
N
+
万一-3-2-14
--2-
1 2 3 4 5 X
B
D
-5
Ο Α
ОВ
OD
Garret starts his homework 5:30. he spends 20 minutes on reading and 15 minutes on math.
At what time does Garret finishes his homework?
so I think the answers ~ Garrett finishes his homework at 6:05.
only thats not an option so choose E because its the closest
hopefully this helps!!!
Consider this expression.
7110 = 90
What is the value of this expression?
Enter your answer in the box.
Answer:
79 is the value
Step-by-step explanation:
Pls please please help me with this
Answer:
the middle one
Step-by-step explanation:
If the perimeter of a square is 28 inches and the area of the square is (x2 + 4x + 4) square inches, where x is a positive number, what is the value of x?
Answer:
If the perimeter of a square is 28 inches and the area of the square is (x2 + 4x + 4) square inches, and x is a both a real and a positive number, then the value of x must be 5.
Step-by-step explanation:
All sides of a square are equal length.
The area of a square is the side length squared.
perimeter p, side length s, area a, and variable x.
p = 28. s = ? a = x^2 + 4x + 4. x = ?
p = 28
p = 4s.
28 = 4s.
7 = s.
a = s^2.
s = 7.
a = 7^2.
a = 49.
a = x^2 + 4x + 4.
a = 49.
x^2 + 4x + 4 = 49.
factor x^2 + 4x + 4.
(x+2)(x+2) = 49.
(x+2)^2 = 49.
√ ((x+2)^2) = √49.
take positive answer.
x+2 = 7
x = 5.
I need to find the slope of the line
Answer:
slope = 3/7
Step-by-step explanation:
To find slope we need two coordinates from the line.
Let it be (-7, 0) and (3, 0)
[tex]slope, m = \frac{y_2-y_1}{x_2-x_1}= \frac{3-0}{0--7} = \frac{3}{7}[/tex]
Identify the conditionals and truth values implied by the following biconditional. Select all that apply.
Answer:
I believe the answer is B and C
Step-by-step explanation:
A ladder that is 6 meters long leans
against a building. The base of the
ladder is 1.5 meters from the base
of the building. To the nearest
hundredth of a meter, how far up
the building does the ladder reach?
Answer:
Height of building from base to ladder = 5.8 meter (Approx.)
Step-by-step explanation:
Given:
Length of ladder = 6 meters
Distance of ladder from base = 1.5 meters
Find:
Height of building from base to ladder
Computation:
Perpendicular = √Hypotenuse² - Base²
Height of building from base to ladder = √Length of ladder² - Distance of ladder from base²
Height of building from base to ladder = √6² - 1.5²
Height of building from base to ladder = √36 - 2.25
Height of building from base to ladder = √33.75
Height of building from base to ladder = 5.8 meter (Approx.)
can u help me plz////
Answer:
∠1=102 ∠2=78
Step-by-step explanation:
From a circular sheet of a radius 5 cm, a circle of radius 3 cm is removed. Find the area of the remaining sheet.
Answer:
2 cm
Step-by-step explanation:
The length of a trip varies directly as the amount of gasoline used. Yael's car used 16 L for the first 145 km of his trip from Toronto to Montreal. a) How much gasoline, rounded to the nearest litre, should he expect to use in the remaining 400 km of his trip? b) Can he complete the trip with a budget of $70, if gasoline costs $1.13/L?
Answer:
44
yes. the total cost is 68 which is less than 70
Step-by-step explanation:
There is positive proportionality is two variables are positively related to each other.
The equation for direct proportionality =
y = bx
where y = dependent variable
b = constant
x = independent variable
amount of gasoline = b x length of the trip
16 = b x 145
b = 16/145 = 0.110345
a. 400 x 0.110345 = 44
total litres used for the trip = 44 + 16 = 60
total cost of the trip = 60 x 1.13 = 67.8
total amount spent on gasoline is 67.8. this is less than the budget
What is the recursive and explicit formula of the geometric sequence?
2,5, 12.5, 31.25, 78, 125, ...
Answer:
Option (2)
Step-by-step explanation:
Given geometric sequence is,
2, 5, 12.5, 31.25, 78.125......
First term = a₁ = 2
Common ratio of the sequence = r = [tex]\frac{5}{2}[/tex]
= 2.5
Recursive formula of a geometric sequence is given by,
[tex]a_n=a_{n-1}(r)[/tex]
Here, [tex]a_n=[/tex] nth term of the sequence
[tex]a_{n-1}=[/tex] (n - 1)th term
r = common ratio
Therefore, recursive formula for the given sequence will be,
[tex]a_1=2[/tex]
[tex]a_n=a_{n-1}(2.5)[/tex]
Explicit formula of a geometric sequence is given by,
[tex]a_n=a_1(r)^{n-1}[/tex]
Therefore, explicit formula of the sequence will be,
[tex]a_n=2(2.5)^{n-1}[/tex]
Option (2) will be the correct option.
if there are 420 students in a school.if 40% of them are girls find the number of girls
Answer:
168 girls
Step-by-step explanation:
420 × 0.40
= 168
Answer:
Step-by-step explanation:
no of students=420
girls percentage=40%
no of girls=40/100*420
=16800/100
=168
therefore number of girls is 168.
PLEASE HELP ME!! I APPRECIATE IT
Answer:
C
Step-by-step explanation:
Jackie, Morgan, kyle and Chung ran the 100 meter dash. Jackie finished in 17.6 sec, Morgan finished in 17.06 sec, kyle finished in 17.66 sec, and chung finished in 17.066. Wich of them finished in the least amount of time
Answer:
Morgan (17.06 secs)
Step-by-step explanation:
Jackie, morgan, Kylie and chung ran the 100 meter dash race
Jackie finished the race in 17.6 secs
Morgan finished the race in 17.06 secs
Kylie finished the race in 17.66 secs
Chung finished the race in 17.066 secs
Hence Morgan finished the race in the least amount of time in 17.06 seconds
The measure of an angle is 2 times the measure of its supplement. Tina writes an equation and finds the correct measure of each angle. Which shows the equation Tina could have written and the angle measures she could have found? A 2x + x = 90 ; 60°and 30° b (x+2) +x = 90; 44° and 46° c (x+2) + x = 180; 89° and 91° d 2x + x = 180: 60°and 120°
Answer: d.
2x + x = 180: 60°and 120°
Step-by-step explanation:
Let x= one of the supplements. (smaller)
As per given , measure of second angle = 2x
We know that,
The sum of two supplements = 180 degrees
Then,
smaller angle + larger angle =180°
i.e. x+2x = 180°
3x= 180°
x=60°
then, 2x = 2 (60°) = 120°
hence, the correct option is d.
2x + x = 180: 60°and 120°
Someone help me solve this
Answer:
x=-2
Step-by-step explanation:
1.1x +1.2x -5.4 = -10
Combine like terms
2.3x -5.4 = -10
Add 5.4 to each side
2.3x -5.4+5.4 = -10+5.4
2.3x = -4.6
Divide each side by 2.3
2.3x/2.3 = -4.6/2.3
x= -2
the expression shown is the cost a customer pays for an item, where c is the cost the store pays for the item and 0.85c is the 85% price increase the store adds to the item. which expression is equivalent to c + 0.85c?
A. 0.15c
B. 0.85c
C. 1.15c
D. 1.85c
Find the surface area of the cylinder.
Answer:
exact: 48pi cm^2
approximate: 150.8 cm^2
Step-by-step explanation:
SA = 2 * (pi)r^2 + 2(pi)rh
SA = 2 * pi * (3 cm)^2 + 2(pi) * 3 cm * 5 cm
SA = pi(18 cm^2 + 30 cm^2)
SA = 48pi cm^2
SA = 150.8 cm^2