Answer: D. 142 degrees
Step-by-step explanation:
Explain to me what a proportion is
Answer:
its a fraction but you use proportions to find x
for example :
2 ×
- -
3 2
Step-by-step explanation:
you multiply cross so then you divide that by your other number
A cylinder has a radius of 4 inches and a height of 5 inches. Which of these dimensions of a cylinder will have the same volume?
Radius: 20 inches
Height: 60 inches
Radius: 2 inches
Height: 20 inches
Radius: 10 inches
Height: 8 inches
Radius: 8 inches
Height: 5 inches
Answer:
Radius: 2 inches Height: 20 inchesStep-by-step explanation:
[tex]R=4\,,\ H=5\ \implies \ \ V=\pi R^2\cdot H=\pi\cdot 4^2\cdot5=80\pi\\\\\\R=20\,,\ H=60\ \implies \ \ V=\pi\cdot20^2\cdot60=24000\pi\ne80\pi\\\\R=2\,,\ H=20\ \implies \ \ V=\pi\cdot2^2\cdot20=80\pi \\\\R=10\,,\ H=8\ \implies \ \ V=\pi\cdot10^2\cdot8=800\pi\ne80\pi\\\\R=8\,,\ H=5\ \implies \ \ V=\pi\cdot8^2\cdot5=320\pi\ne80\pi[/tex]
Answer:
Radius: 2 inches
Height: 20 inches
Step-by-step explanation:
Use the formula V = πr2h to solve the problem.
Tiffany drew three triangles. She use the measurements of 25 degrees, 80 degrees, and 75 degrees. Is this a possible triangle?
A. Yes
B. No
Answer:
Yes.
Step-by-step explanation:
What is the difference of d minus 3 divided by 2 if d = 3?
After his alarm rings, Clarence has
25 minutes to get ready. He snoozes in
bed for one minute after the alarm rings
the first day, two minutes the second
day, three minutes the third day, etc.
When Clarence is down to 11 minutes to
get ready, how many days has it been?
Answer: 14 days
Step-by-step explanation:
Day 1: 1 minute snooze = 24 minutes
Day 2: 2 minute nooze = 23 minutes ; these examples show snooze time = days.
We can set up an equation for this situation: 25 - s = r ; where s = snooze time and r = time to get ready.
Given the problem, we can fill out this equation with: 25 - s = 11
When you solve this equation, time snoozed = 14.
We already know that snooze time = days, so days = 14.
I am not a professional, simply using prior knowledge!
Note- It would mean the world to me if you could mark me brainliest!
Given that is the midpoint of AB and E is the midpoint of AC, AD =32cm, AE=19cm, and DE=39cm, determine the perimeter of DBCE
Answer:
since triangle AED similar to ACB
CE=19cm mid point bisect it
BD=32Cm mid point bisect it
Step-by-step explanation:
BC=2DE=2×39=78Cm
perimeter=sum of all side=ce+de+bd+bc=19+39+32+78=168cmtherefore perimeter of DBCE=168Cm5 Marta designs a logo for her mother's business,
X-treme Nutrition. The logo is shown.
35°
35°
b
Which equation and solution best represents
angle b?
A b + 35 = 90; b = 55°
B b-35 = 35; b = 70°
C 6+ 70 = 180; b = 110°
D b + 35 = 180; b = 145°
Answer:
(C). b + (2 × 35) = 180; b = 110°
Step-by-step explanation:
A city has 17391 registered Democrats and 20553 registered
Republicans. An organization wishes to survey equal proportions of
each group.
The council decides to survey 13 Republicans
How many Democrats should they survey? Democrats
Answer: The council should survey 11 Democrats.
Step-by-step explanation:
A proportional relationship is written as:
y = k*x
Where k is the constant of proportionality. y is the number of surveyed members, and x is the total number of registered members.
If we use the same proportion for each case, then we will use the same value of k.
We know that there are 20553 registered Republicans, and the council decides to survey 13 of them, then we will have the relation:
13 = k*20553
Now we can solve this for k:
13/20553 = k
Then the proportional relationship will be:
y = (13/20553)*x
The number of democrats they should survey can be found if we replace x by the number of registered Democrats, then we use x = 17391
this leads to:
y = (13/20553)*17391 = 11
The company should survey 11 Democrats.
Please help true or false in the picture below
Solve for x:
(4x - 6)
(2x)
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer:
2x + 4x - 6 = 180
6x - 6 = 180
6x = 186
x = 31
Step-by-step explanation:
Describe how you know whether an equation will be true for all values of x or true for no values of x.
Answer:
Substitute your answer for the variable x. If the equation looks accurate or is correct, then the value of x is the right answer. Not sure if this makes sense
Determining whether an equation is true for all values of x or true for no values of x requires simplifying the equation, determining its domain, checking for variable restrictions, and evaluating the equation for different values of x.
What is an equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
Simplify the equation as much as possible using algebraic manipulations such as combining like terms, factoring, and expanding.
Evaluate the equation for a few different values of x to see if it holds true. If the equation is true for all values of x within the domain, then it will be true for all values of x. If there are any values of x within the domain that make the equation false, then it will be false for no values of x.
If the equation cannot be simplified or the domain cannot be determined, then it may require further analysis, such as graphing or using calculus techniques to determine its behavior.
Thus, determining whether an equation is true for all values of x or true for no values of x requires simplifying the equation, determining its domain, checking for variable restrictions, and evaluating the equation for different values of x.
Learn more about the equation here:
brainly.com/question/10413253
#SPJ2
Can someone plz help me with showing the work. Send the work pic and I’ll mark brainliest plz ASAP!!!
Answer:
I think it might be D. 4mi because it is a little smaller that 5mi but bigger than 3mi but I might be wrong
What is the first step to solve for y for -x+2y=-10
Answer:
-x +2y = - 10
2y = x - 10
y. = x - 10/2
hope it helps ☺️☺️
Graph would be the first step!
Pls help How many sides does this regular polygon have?
Answer:
9
Step-by-step explanation:
interior angle + exterior angle = 180°, that is
7y + 2y = 180
9y = 180 ( divide both sides by 9 )
y = 20
Then
2y = 2 × 20 = 40°
The sum of the exterior angles of a polygon = 360°
Divide the sum by 40 for number of sides (n)
n = [tex]\frac{360}{40}[/tex] = 9
I need help I don’t get how to solve it plsss help me
Answer:
Step-by-step explanation:
They give you the equation, you must substitute the x values into the equation to find the y values.
Example on top equation:
y=-5x so the y values would be
y=-5(-1)=5
y=-5(0)=0
y=-5(1)=-5
y=-5(2)=-10
Allie goes cruising on her dirt bike. She rides 2 km north, 4 km west, 13 km south, 10 km east, 1 km south and 6 km east. What was her displacement?
Answer:
16.97km
Step-by-step explanation:
To get the displacement, we will use the pythagoras theorem
Sum of distances along the horizontal (east and west) is expressed as
dx = 10 - 4 + 6
dx = 6+6
dx = 12km
Sum of distances along the y;
dy = 2 - 13 - 1
dy = -11-1
dy = -12km
Find the displacement using the pythagoras theorem
D = √(12)²+(-12)²
D = √144+144
D = √288
D = 16.97km
Hence her displacement is 16.97km
Can you solve this geometry problem?
Answer:
m<UTV = 100°
Step-by-step explanation:
360 = 140 + 120 + m
360 = 260 + m
360 - 260 = 260 - 260 + m
100 = m
----------------------------------------
360 = 140 + 120 + 100
360 = 260 + 100
360 = 360
help me plzzzzzzzzzzzzzz
Answer:
the equation is y=4x+3
Step-by-step explanation:
is that what you wanted?
Answer:
y=4x +3
Step-by-step explanation:
y=mx + b is the slope y-intercept form
4 is the slope so "mx" is now filled and 3 is the y-intercept
i hope this helps :) have a great day !!
Suppose the ratio of Lev's age to Mina's age is $1 : 2$ and the ratio of Mina's age to Naomi's age is $3 : 4$. What is the ratio of Lev's age to Naomi's age? Give your answer in simplest form.
Answer:
3:8
Step-by-step explanation:
The ratio of Mina's age to Naomi's age is 3 : 4
Multiplying the above ratio by 2 = 6:8
The ratio of Lev's age to Mina's age is 1 : 2
Multiplying the above ratio by 3
= 3:6
Therefore, ratio of Lev's age to Naomi's age in simplest form.
= 3:8
Answer:
3:8
Step-by-step explanation:
Let L, M, and N stand for the three ages.
The given ratios tell us that
M = 2L
and
N = 4/3M.
Therefore,
N = 4/3 x 2L = 8/3L.
This means that Lev's and Naomi's ages are in the ratio 3:8.
Solve the original equation 2+1/b+2=3b/b+2 by solving the proportion. The solutions are
a.-6,-1 b. -6,1 c. -1,6 d. 1,6
Answer:
b=1
Step-by-step explanation:
2b+1+2b=3b+2b
4b+1=5b(Simplify both sides of the equation)
4b+1−5b=5b−5b(Subtract 5b from both sides)
−b+1=0
−b+1−1=0−1(Subtract 1 from both sides)
−b=−1
−b
−1
=
−1
−1
(Divide both sides by -1)
b=1
Check answers. (Plug them in to make sure they work.)
b=1(Works in original equation)
Answer:
D, 1,6
Next is Neither
And the first one was C
On Edgenu ity
9. There are 45 marbles in a bag (black and white only). The ratio of white marbles to black marbles is 2:3.
How many of each are there?
18 white and 27 black
Step-by-step explanation:
add 2 + 3 to get 5
45 ÷ 5 = 9
since white is 2, multiply 9 by 2 to get 18
since black 3, multiply 9 by 3 to get 27
1. RS has endpoints R(2, 4) and S(-1, 7). What are
the coordinates of its midpoint M?
Answer:
(0.5, 5.5)
Step-by-step explanation:
Can someone pls help me ? I really need help
Answer:
its A.56
Step-by-step explanation:
What is the difference in height between 30m up a cliff and 87 m up a cliff? What is the
distance between these positions?
The difference in height is *blank*
The distance between the positions is *blank*
Answer:
57 m.
Step-by-step explanation:
87 - 30 = 57.
with one litre of paint you can paint an area of 8m².how much paint will you need for a wall mural that is 10m wide and 3m high?
Answer: 3.75 liters
Step-by-step explanation:
1 liter = 8m^2
area of the wall = l x b (wide x high)
= 10 x 3
= 30m^2
so, quantity of paint needed = 30/8 = 3.75 liters
Hope it helped u,
pls mark as the brainliest -Ayaan707-
^_^
Determine the unknown angle in the triangle pictured below: pls help me /.
Answer:
60
Put the Brainlest please
help ASAP thanks .....
Answer:
The missing side of the triangle is 15
Find the measure of the indicated angle.
:)
Answer:
2
Step-by-step explanation:2
What is the volume of a box with the dimensions of 10ft. by 5ft. by 6ft?
Answer:
300ft^3
Step-by-step explanation:
10ft. by 5ft. by 6ft? =300ft^3
The volume of the box with the dimensions of 10 ft x 5 ft x 6 ft is 300 cubic feet.
What is the volume of the cuboid?The volume of cuboid is given by -
V{C} = Length x Breadth x Height
Given is a box with the dimensions of 10 ft x 5 ft x 6 ft.
We can write the volume of the box as -
V{b} = L x B x H
V{b} = 10 x 5 x 6
V{b} = 50 x 6
V{b} = 300 cubic feet
Therefore, the volume of the box with the dimensions of 10 ft x 5 ft x 6 ft is 300 cubic feet.
To solve more questions on volume, visit the link below -
https://brainly.com/question/29424737
#SPJ2
HELP PLEASE IM IN A TIMED TESTTTT !!!
Mr. Frankel bought 7 tickets to a puppet show and spent $43. He bought a combination of child tickets for $4
each and adult tickets for $9 each. Which system of equations below will determine the number of adult
tickets, a, and the number of child tickets, c, he bought?
1. a=C-9
9a + 40 =43
2. 9a +4c=43
a+c=7
3. 40 + 40 = 50
a+c=7
4. a+c= 301
a+c=7
Answer:
Step-by-step explanation:
2. 9a +4c=43
a+c=7
The total tickets for adults and children = 7 (a+c =7) 7 people in all
price for adult = $9 (9a) Price per child =$4 (4c)
total price =$ 43
9a +7c = 43