Answer:
19.2 PLS GIVE BRAINLIEST
Step-by-step explanation:
Find the volume and surface area of a sphere with a radius of 6cm.
Which statements are true about ABCD? Select all that apply.
One type of candy mix contains 30% Smarties by mass. A second type contains 20% Smarties by
mass. What mass of the 30% mix is required to make a 500 gram mixture that will have 24%
Smarties by mass?
Answer:
200 grams
Step-by-step explanation:
Let us represent
The number of grams of
30% smarties = x
20% smarties = y
Hence:
x + y = 500
x = 500 - y
Hence:
30% × x + 20% × y = 24% × 500
0.3x + 0.2y = 120
Substitute 500 - y for x
Hence:
0.3(500 - y) + 0.2y = 120
150 - 0.3y + 0.2y = 120
Collect like terms
- 0.3y + 0.2y = 120 - 150
- 0.1y = -30
y = -30/0.1
y = 300
Solving for x
x = 500 - y
x = 500 - 300
x = 200
Hence,
The number of grams of
30% smarties = x = 200 grams
20% smarties = y = 300 grams
Therefore:
the mass of the 30% mix is required to make a 500 gram mixture that will have 24% Smarties by mass is 200 grams
what is the vertex of this quadratic?
Answer:
vertex = (3, 2 )
Step-by-step explanation:
The vertex is the turning point of the graph.
This occurs at (3, 2 ) ← vertex
Answer:
The vertex is at (3, 2)
Step-by-step explanation:
Hello!
VertexThe vertex of a parabola is the point of turning, or the minimum/maximum point of the parabola.
Since the graph opens up, the vertex is at the minimum point.
The y-value is 2, and the x-value is 3, giving us the vertex of (3, 2)
Other PartsThere are other parts to parabola than just the vertex.
Standard form of a quadratic: [tex]ax^2 + bx + c[/tex]
Other parts include:
Axis of Symmetry, the line where the parabola is exactly symmetrical, and when folded in half, the sides will match. It is found using the formula [tex]-\frac{b}{2a}[/tex]X-intercepts, also known as the roots or zeroes of the graph, is where the graph touches the x-axis. It is found using the quadratic formula:[tex]x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}[/tex]Y-intercepts, the point where the graph hits the y-axis. It is the "b" value in the equation.What is the probability of drawing a red marble?
2/5
45%
1/3
9/11
Answer:
45%
Step-by-step explanation:
Counting the marbles, there are 5 green, 6 blue and 9 red.
Which means the odds of drawing a red to a non red are 11:9
In fraction form that would be 9 marbles out of 20 are red. 9/20
Since the fraction cannot be simplified, we can go to decimal form.
9/20=.45
.45=45%
The answer is 45%.
Answer:
45%
Step-by-step explanation:
Total = 20
Red = 9
9/20 = 0.45
Therefore 45 % is the correct option :))
What is the volume of the following rectangular prism?
8/3units
21/2units2
Volume =___ units3
Answer:
73.5
Step-by-step explanation:
Step 1: 21/2 divided by 2 = 21/4
Step 2: 21/4 times 21/4 times 8/3 =
Answer: 73.5
The green shaded box is there to show that that is the base are to find the two sides that were multiplied to get that do the first step. Then do your basic volume formula: length times width times height.
Help!! Please
I need the simplified form
Answer:
1/2
Step-by-step explanation:
Find the number of solutions to the equation n -9 = n + 9.
Answer:
I think n=0 because
-9-9=n
0=n also as n=0
PLZZZZZZZZZZZZ PLZZZZZZZZZZZZ help asap thank you no links please and thank you .
Answer:
p = 4n
p = 312 passengers
n = 19.5 cars
Step-by-step explanation:
Let
n = number of cars
p = number of passengers
a. p = 4n
b. p = 4n
Find p if n = 78
p = 4n
p = 4 * 78
p = 312 passengers
c. Find n if p = 78
p = 4n
78 = 4n
Divide both sides by 4
78 / 4 = 4n / 4
19.5 = n
n = 19.5 cars
please help due soon!!! will mark brainlyist if right
Step 1: Find the slant height
10^2 + 28^2 = c^2
884 = c^2
c = [tex]\sqrt{884}[/tex]
Step 2: Find the lateral area
LA = pi * radius * slant height
LA = pi * 10 * [tex]\sqrt{884}[/tex]
LA (rounded to the nearest tenth) = 297.3pi in^2
Step 3: Find the area of the base circle
A = pi * r^2
A = pi * 10^2
A = 100pi in^2
Step 4: Add the areas together
SA = 297.3pi + 100pi
SA = 397.3pi in^2
Hope this helps!! :)
The temperature in Elmwood is 5°C. The temperature in Gainesville is 9°C cooler than the temperature in Elmwood. The temperature in Knowlton is 12°C warmer than the temperature in Elmwood. Which equation shows the temperature in °C in Knowlton?
A lifeguard at a community swimming pool earns $56 in 7 hours. How much does the lifeguard earn per hour?
Answer:
$8
Step-by-step explanation:
7/7 = 1
56/7 = $8
its not b, i just have it hovered over it
PLEASE HELP WILL MARK BRAINLIEST IF CORRECT!!Given the point (18, -10), apply the rule and tell the image after the translation as an ordered pair with no spaces.
(x,y) --> (x - 11, y - 9)
Answer:
(7,-19)
Step-by-step explanation:
Just took the final got it correct
HELP ME PLEASE!! π∆π π∆π
Applying the Pythagorean theorem, Find the measure of the missing side of a right triangle if one leg is 7 cm and the hypotenuse is 25 cm.
Answer:
24
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2+b^2 = c^2 where a and b are the legs and c is the hypotenuse
7^2 + b^2 = 25^2
49 + b^2 = 625
Subtract 49 from each side
49+b^2 -49 = 625-49
b^2 = 576
Take the square root of each side
sqrt(b^2) = sqrt(576)
b = 24
Step-by-step explanation:
[tex]hypotenuse {}^{2} \: = base {}^{2} + \: perpendicular {}^{2} \: \\ \\ base {}^{2} = 25 {}^{2} - 7 {}^{2} \\ \\ base {}^{2} = 625 - 49 \\ \\ base {}^{2} = 576 \\ \\ base = \sqrt{576} \\ \\ base = 24 \\ \\ [/tex]
PLS HELP THIS IS MY FINALS
[tex]\boxed{c.\:n\:=\:18}[/tex] ✅
[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}[/tex]
[tex] \frac{6}{n} = \frac{14}{42} \\ ⇢ n = \frac{6 \times 42}{14} \\ ⇢ n = \frac{252}{14} \\ ⇢ n = 18[/tex]
[tex]{ \bf{ \underbrace{To\:verify:}}}[/tex]
[tex] \frac{6}{n} = \frac{14}{42} \\ ⇢ \frac{6}{18} = \frac{14}{42} \\ ⇢ \frac{1}{3} = \frac{1}{3} \\ ⇢ L.H.S.=R. H. S[/tex]
Hence verified.
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.ඞ}}}}}[/tex]
WHAT. Is. THIS. pls haaaaaaalp
Answer: 56
Step-by-step explanation:
A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 9 inches, a width of 3 inches, and a height of 1 1/2
inches. What is the surface area?
Answer:
90
Step-by-step explanation:
Formula is:
2(wl + hl +wh)
plug in values and calculate
Click on the graph below to create a quadrilateral with vertices at the following points
(8,0), (8,7), (0,0), (2, -6)
Answer:
Look at the picture for the answer :D
Step-by-step explanation:
The x coordinate comes first, then the y.
Y-intercept for y=x2+6x-27
Answer:
y-intercept is -27
Step-by-step explanation:
HELP I CANT FAIL AGAIN
Answer:
49
Step-by-step explanation:
For the function f(x) = -(x + 1)2 + 4, identify the vertex, domain, and range.
f ( x ) = - ( x + 1)^2 + 4
_____________________
Vertex = ( - 1 , 4 )
♡♡♡♡♡♡♡♡♡♡♡♡
Domain = R
♡♡♡♡♡♡♡♡♡♡♡♡
Range = ( - infinite , 4 ]
what is street art and how do it help us share are cultures
Answer:
Street art can help us commute more interesting. It can make people cheerful surprised and happy. Street art is a form of artwork
Step-by-step explanation:
y u put this in math subject when this isn't even math?
SOMEONE PLSSSSS HELP MEEEE PLSSSS
Answer:
the answer is c !
Step-by-step explanation:
Answer:
Step-by-step explanation:
If your inequality has these signs, will you have an Opened or Closed circle on your number line graph? > or <
Answer:
it will be opened but if it's for the < and > with a line underneath each of them, the circle with be closed
3.2/.8=
help pls
also the steps to doing it.
Answer:
4
Step-by-step explanation:
I don't really know how to show the steps, but one of the easiest ways to do this is to see how many times 0.8 goes into 3.2. So 0.8 + 0.8 + 0.8 +0.8 = 3.2 So 3.2/0.8 is 4
Or you can multiply the numerator and denominator by 10, which keeps the value of the fraction but gets rid of pesky decimals: 32/8 this should be fairly straight forward and a key reason to memorize your times tables. 8*4=32
6. Roberta started the year with $125 in a savings account. She has been adding money at a rate of $15 per week. Write an equation in the form y = mx + b that represents the total amount of money (y) in the account after x weeks.
Answer:
y=15x+125
Step-by-step explanation:
Hope this helps!
The value of a home is $899,000 and increasing in value at a rate of 1% per year. Use an exponential growth function to find the approximate value of the home in 12 years.
Answer:
$1012993.2
Step-by-step explanation:
Given data
Cost of home V= $899,000
Rate of increase= 1%
Time= 12 years
The exponential growth function is expressed as
A=V(1+r)^t
A=899000(1+0.01)^12
A= 899000(1.01)^12
A= 899000*1.1268
A=$1012993.2
Hence the cost of the home will be $1012993.2
Ryan works part-time at a local department store.He earns 12.50 an hour . During a one week period he worked a total of 32 hours. What was Ryan's gross income for one week
Answer:
400
Step-by-step explanation:
12.50times 32
Which angles are vertical angles and, therefore, congruent? 3 lines intersect to form 8 angles. From top left, clockwise, the angles are A, B, C, D, H, G, F, E. Angle A and Angle D Angle A and Angle G Angle A and Angle E Angle A and Angle F
Answer:
A and F
Step-by-step explanation:
Given
Intersecting lines
Required
The vertical and congruent angles
The two vertical lines are not parallel. So, we cannot conclude any relationship between angles A, B, E, F and angles C, D, H, G
Comparing angles A, B, E and F; we have:
[tex]\angle A = \angle F[/tex] --- Vertical opposite angles
[tex]\angle B = \angle E[/tex] --- Vertical opposite angles
From the given options,
[tex]\angle A = \angle F[/tex] is true