Answer: 10
Step-by-step explanation:
80/100 of 10
0.8 × 10 = 8
8 is 80% of 10
A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100.
To find a number such that, it's 80% is 8.
Let the number be x
80%x =8
This forms an equation in one variable which can be solved by transposition.
[tex]80x/100=8[/tex]
On multiplying 100 both sides,
[tex]80x=800[/tex]
On dividing 80 both sides,
x=10
Thus, 80% of 10 is 8.
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If f(x) = 11 - 6(x - 8), what is f(-3)?
Answer:
We conclude that:
[tex]f\left(-3\right)=77[/tex]Step-by-step explanation:
Given the function
[tex]f(x) = 11 - 6(x - 8)[/tex]
Important Tip:
In order to determine f(-3), all we need is to substitute x = -3 in the function equationsubstitute x = -3 in the equation
[tex]f(x) = 11 - 6(x - 8)[/tex]
[tex]f(-3) = 11 - 6(-3 - 8)[/tex]
[tex]f\left(-3\right)\:=\:11-\left(-66\right)[/tex]
[tex]f\left(-3\right)\:=\:11+66[/tex] ∵ Apply rule -(-a) = a
[tex]f\left(-3\right)=77[/tex]
Therefore, we conclude that:
[tex]f\left(-3\right)=77[/tex]Please help this is for a big grade
Answer:
x = 12
Side length = [tex]2\sqrt{3}[/tex] in
Step-by-step explanation:
Area of the given hexagon = 6 × (Area of the triangular section)
Area of the triangular section = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
= [tex]\frac{1}{2}(2)(\sqrt{3})^{\frac{x}{12}}(\sqrt{3})^{\frac{x}{6}}[/tex]
= [tex](\sqrt{3})^{\frac{x}{12}}[(\sqrt{3})^2]^{\frac{x}{12}}[/tex]
= [tex](\sqrt{3})^{\frac{x}{12}}(3)^{\frac{x}{12}}[/tex]
= [tex](3\sqrt{3})^{\frac{x}{12}}[/tex]
Now area of the given hexagon = [tex]6(3\sqrt{3})^{\frac{x}{12}}[/tex]
Since, area of the hexagon is = [tex]18\sqrt{3}[/tex] in²
[tex]6(3\sqrt{3})^{\frac{x}{12}}=18\sqrt{3}[/tex]
[tex](3\sqrt{3})^{\frac{x}{12}}=(3\sqrt{3})^1[/tex]
[tex]\frac{x}{12}=1[/tex]
x = 12
Therefore, side length = [tex]2(\sqrt{3})^{\frac{x}{12}}[/tex]
= [tex](2\sqrt{3})^{\frac{12}{12}}[/tex]
= [tex]2\sqrt{3}[/tex] in.
About 35% of all U.S. households have a cellular phone. If you called 7 households to inquire if they have a cell phone.
To calculate this distribution, what would you set p equal to? p =
What would q be equal to? q =
What would n be equal to? n =
Answer:
p = 0.35
q = 0.65
n = 7
Step-by-step explanation:
To calculate the distribution, we have the following values;
p = 35% = 35/100 = 0.35
q = 1-p = 1-0.35 = 0.65
n = 7
Answer:
p = 0.35
q = 0.65
n = 7
Step-by-step explanation:
9x²+18x-7 (Factor COMPLETELY)
Answer:
(3x - 1) • (3x + 7)
Step-by-step explanation:
Also if you ever need help with algebra, tiger-algebra.com is a good way to solve it! It gives you the steps and everything too.
Hope this helps!
Step-by-step explanation:
[tex]\tt{}( {9x}^{2} - 18x - 7)[/tex]
[tex]\tt{} {9x}^{2} + 21 - 3x - 7[/tex]
[tex]\tt{}3x \times (3x + 7) -( 3x + 7)[/tex]
[tex]\tt{}(3x + 7) \times( 3x - 1)[/tex]
please answer will give brainliest
Answer:
50 im sorry if im wrong
Step-by-step explanation:
Answer:
225
Step-by-step explanation:
15 * 15 = 225
225 / 2 =
Solve algebraically the simultaneous equations
x^2 – 4y^2 = 5
3x + 4y = 13
Please correctly pair your answers and write them on separate lines.
Step-by-step explanation:
There are two page above i think it be useful
Thanks for this question :)
Find the sum of -7x^2-6x+9−7x 2 −6x+9 and -3x^2-x+7−3x 2 −x+7. show work
Let's simplify step-by-step.
−7x2−6x+9−7x2−6x+9
=−7x2+−6x+9+−7x2+−6x+9
Combine Like Terms:
=−7x2+−6x+9+−7x2+−6x+9
=(−7x2+−7x2)+(−6x+−6x)+(9+9)
=−14x2+−12x+18
Answer:
=−14x2−12x+18
Let's simplify step-by-step.
−3x2−x+7−3x2−x+7
=−3x2+−x+7+−3x2+−x+7
Combine Like Terms:
=−3x2+−x+7+−3x2+−x+7
=(−3x2+−3x2)+(−x+−x)+(7+7)
=−6x2+−2x+14
Answer:
=−6x2−2x+14
Answer: -10x^2-7x+16
Step-by-step explanation: (-7x^2-6x+9)+(-3x^2-x+7)
-7x^2-6x+9-3x^2-x+7
Nothing to distribute.
Combine like terms:
Final Answer: -10x^2-7x+16
find the radius of the circle. please.
Answer:
12in
Step-by-step explanation:
2r = 24
r = 12
Answer:
12 in.
Step-by-step explanation:
The radius is half of the diameter.
r = d/2
r = 24/2
r = 12
Mason download an app for four dollars. The app has a monthly fee of three dollars per month. Tatum download the same app that cost $20 and has monthly fees of one dollar per month how many months before Mason and Tatum had paid the same amount?
Step-by-step explanation:
step 1. let Mason = m and Tatum = t
step 2. m = 3x + 4 ($3/month and one time $4)
step 3. t = 1x + 20 ($1/month and one time $20)
step 4. 3x + 4 = x + 20 (set equations equal)
step 5. 2x = 16 (collect like terms)
step 6. x= 8 (answer: 8 months)
Hi! When I type into the calculator and multiply 0.12 and 100 it comes out as 13.2, why is that?
Answer:
because it is a decimal so it multiplies 100 by the decimal which is a smaller number, almost like how when you divide it becomes a smaller number.
Step-by-step explanation:
hope this helps:)
i'm not sure why that is, but the only thing i can assume is that either your calculator is broken somehow or you are accidentally typing in the wrong numbers.
you might also have forgotten to clear your calculator before attempting to put in 0.12 x 100.
i recommend using an online calculator for the time being if your calculator is faulty/having issues.
If all the areas on the spinner are the same size, what is the probability the spinner will land on a circle?
75%
50%
12.5%
25%
Answer:
50
Step-by-step explanation:
Answer: 50%
Step-by-step explanation:
5) How many thousands are there in 2 158 621?
Answer:
2,158,621 = 2 (i think)
giving brainlest to whoever can solve ^^
Answer:
c
Step-by-step explanation:
-8 + 12 =4
Please Help Me, I will give the person who answers the best brainliest.
What is the equation of a line that contains the points (5, 0) and (5, −2)?
x = 5
x = 0
y = 0
y = 5
math work pls help :)
Answer:
e
Step-by-step explanation:
As the figure shows, the triangle are right triangle s. So the choice is e
if p ≥ q, then -p ≤ -q
Answer:
Yes, that's correct.
Step-by-step explanation:
A pool has a circular base with a diameter of 48 feet as shown in the diagram. What is the circumference of the base of the pool in feet?
Answer:
150.72
Step-by-step explanation:
C= pi*d
C= 3.14*48
C=150.72ft
Select the correct answer.
Which of the following statements is correct about quadratic number patterns?
A. The second difference is constant.
B. The third difference is greater than zero.
c. The first difference is constant.
D. The difference between terms is always positive.
Answer:
D.. I think..hope it helps
What is the solution
-3x + y = 2
y = x + 4
Answer:
to find the solution, we substitute y = x + 4 into the other equation.
-3x + (x + 4) = 2
-3x + x + 4 = 2
-2x = 2 - 4
-2x = -2
x = 1
to find y, we substitute x to the x variable in the y equation.
y = 1 + 4
y = 5
therefore, when combined, it is (1,5).
What is XY? .........................
Answer: B i guess
Step-by-step explanation:
The hypotenuse side XY of given right angle at Z is [tex]5\sqrt{2}[/tex].
Given that in triangle XYZ :
∠X=45°
∠Y=45°
XY=5
And right angled at Z, that is, ∠Z=90°.
Since, ∠X=∠Y=45°
Therefore, XZ=YZ=5
Now,
[tex]\sin \theta = \dfrac{hypotenuse}{opposite}[/tex].
Here, θ=45°.
Therefore,
[tex]\sin \theta=\dfrac{5}{XY}\\\\\sin 45\°^=\dfrac{5}{XY}\\\dfrac{1}{\sqrt{2} } =\dfrac{5}{XY}\\\\XY=5\sqrt{2}[/tex]
Thus, the side XY=[tex]5\sqrt{2}[/tex].
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Find the slope and y-intercept of the line
y=-1/5x+9
Answer:
Step-by-step explanation:
Slope and y-intercept form of a line: y =mx + b
m -> Slope; b -> y-intercept
y = (-1/5)x + 9
Slope = -1/5
y-intercept = 9
1.Find the number such that twice its square root is 14
2.Find the number such that the square root of four more than five times the number is 8
Answer:
rryvggugfèieuddbdbxkzbsvsjskbshsudisnssvehsij234
Answer:
1 ....ans is 49
as its root is 7 and double of 7 id 14
2 ....ans is
sq of 64 is 8
number is x
now
5x + 4 = 64
5x=60
x=12
so number is 12.
will mark brainliest pls help
Answer:
y = 90 and z = 62.........
Use the formula v= u + at to find the final velocity (in m/s), when
• the initial velocity is 3 m/s
• the acceleration is 2.5 m/s?
• the time is 12 seconds
Deion finds that the world's population is 7.048 billion and is increasing at a rate of 1.1% per year. Which function
would Deion use to model the growing population in billions, P(t), based on the number of years, t, after this year?
Answer:
Step-by-step explanation:
I think it’s a
What is the distance from Point A to Point B?
A(-4,2)
B(6,-3)
Answer:
The distance is (10,5). Hope I helped! Have a great day :)
Step-by-step explanation:
p(x)=x^4 -2x^3 -11x +12x+36
The process of solving for all zeros (by hand) of the polynomial (work page)
The list of all solutions
The domain and range of the function
The end behavior of the function
The intervals for which the function is increasing and decreasing
Local Maximum(s)
Local Minimum(s)
x=−2x=-2 (Multiplicity of 22)
x=4x=4 (Multiplicity of 11)
5x + 3y = 6
-3x - 3y = 6
Answer:
(x,y)=(6,-8)
x=6, y=-8
Step-by-step explanation:
There are many was to answer this question, some are substitution and elimination. I am going to use the substitution method.
Your system of equation is 5x+3y=6 and -3x-3y=6
5x+3y=6
-5x -5x
3y=6-5x
Now you substittion the first equation to the sencond one. It will look like:
-3x-(6-5x)=6
-3x-6+5x=6
2x-6=6
+6 +6
2x=12
Divide both sides by 2 and you get
x=6
Now lets substiton x inot the orgianl equation.
-3(6)-3y=6
-18-3y=6
+18 +18
-3y=24
Divide both sides by -3
y=-8
So, the answer is x=6, y=-8
y = -63 y = 8x + 6
Use Substitution to solve
9514 1404 393
Answer:
(x, y) = (-8.625, -63)
Step-by-step explanation:
Substitute for y.
-63 = 8x +6
-69 = 8x . . . . . subtract 6
-69/8 = x = -8.625
The solution is (x, y) = (-8.625, -63).
IM RELLY DONE I DONT UNDERSTAND THIS
And answer is not (-5.-2) e.t.c
PLS HELP
Answer: -5, 1: -5, 2: -8, 1
Step-by-step explanation: Just flip it on the other side
Answer:
(2,5)
(1,5)
(1,8)
Step-by-step explanation:
The reflection line y = x does the following to the coordinates:
(x , y) --> (y , x)
The coordinates swap places.
(5,2) --> (2,5)
(5,1) --> (1,5)
(8,1) --> (1,8)
