Answer:
2
Step-by-step explanation:
16x-6=26
16x=32
x=2
Answer:
Step-by-step explanation: 16x =26 +6
16x=32
x=32/16 , 32 divided by 16
x=2
i hope it helps you
I need all the help I can
Find the value of r.
Answer:
r = 10.5
Step-by-step explanation:
using the Pythagorean theorem:
(7 + r)² = 14² + r²
49 + 14r + r² = 196 + r²
subtract r² from both sides of the equation:
14r + 49 = 196
subtract 49 from both sides:
14r = 147
divide both sides by 14:
r = 10.5
Which system of equations is equivalent to the system of equations shown? 2x + 5y = -2 4x + 7y = 8
Answer:
x=9, y=-4. (9, -4).
Step-by-step explanation:
2x+5y=-2
4x+7y=8
--------------
-2(2x+5y)=-2(-2)
4x+7y=8
---------------------
-4x-10y=4
4x+7y=8
--------------
-3y=12
y=12/-3
y=-4
2x+5(-4)=-2
2x-20=-2
2x=-2+20
2x=18
x=18/2
x=9
The equation of a parabola is y=x^2–4x+13. Write the equation in vertex form.
Simplify any fractions.
Answer:
y = (x - 2)² + 9
Step-by-step explanation:
To obtain the equation in vertex form use the method of completing the square.
Add/ subtract ( half the coefficient of the x- term)² to x² - 4x
y = x² + 2(- 2)x + 4 - 4 + 13
= (x - 2)² + 9 ← in vertex form
Answer:
vertex form : y=(x-2)^2+9
Step-by-step explanation:
To convert a parabola from standard form y=x^2-4x+13 to vertex form, we complete the square.
first, complete the square using the x-terms, use the constant term to adjust and make a perfect square.
y= x^2-4x+4 + 9
Factor the first three terms on the right-hand side.
y=(x-2)^2 + 9
the resulting express is then the vertex form, which means that
the vertex is at (x-2) = 0, x=2, and at y=9.
Help ASAP I’ll mark you as brainlister
Answer:
volume is 4712.39
Step-by-step explanation:
looked it up lol
What is the value of x????
Answer:
x = 28
Step-by-step explanation:
The 2 radii of the circle form an isosceles triangle with base angles congruent, both 59°
The angle at the vertex O is then
180° - (59 + 59)° = 180° - 118° = 62°
The angle between the tangent and the radius is 90°
Then
x = 180 - (90 + 62) ← sum of angles in a triangle
x = 180 - 152 = 28
Which equation can be used to solve for the value of x?
option : c. 2x + 15 = 145
cuz, the angles are vertical opposite angles
Answer:
2x + 15 = 145
Step-by-step explanation:
vertical angles are congruent
=> (2x + 15)° = 145°
21/24 x 16/24, guys plz help..
Answer:
g00gle
Step-by-step explanation:
click new tab and type in 21/24 x 16/24
Answer quickly!!!!!!!!
Answer:
c: 8 i'm sure
Step-by-step explanation:
Because we count where the line stops is 8 squares which means it's 8
A school purchases boxes of candy bars. Each box contains 50 candy bars. Each box costs $30. How much does the school have to charge for each candy bar to make a profit of $10 per box?
A $0.40
B $0.50
С $0.80
D $1.25
Answer:
C
Step-by-step explanation:
30/50 = each bar costs 0.60 dollars
10/50 = 0.20 dollars
0.60 + 0.20 = 0.80
I really need help this is hard
Answer:
y = 3x + 3
Step-by-step explanation:
Y intercept is 3 so that's at the end of the equation. Input the points and that equation fits.
Please help ASAP I’ll mark you as brainlister please
Answer:
2 x 2=4 on each side so 4 x 2=8
5 x 2=10
10 x 4=40
Step-by-step explanation:
Which number has a 3 with a value that is 100 times greater than the value of 3 in 20.342 ?
1) 307.18
2) 423.06
3) 108.173
4) 36.25
Answer:
108.173
Step-by-step explanation:
answer this for points and brainilest
Answer:
e = -2
Step-by-step explanation:
Hey man, I got straight A's in math all year so here's the answer!
Good Luck! :)
Juan went to the store to buy a plant for his mother, but forgot to ask which kind to get. Out of 30 plants, eighteen of them are a kind that his mother would want. If Juan chooses one randomly, what is the probability that he will choose a kind that his mother would want?
Answer:
Probability [Randomly choose plant Juan's mother want] = 3 / 5
Step-by-step explanation:
Given:
Total number of plant in store = 30 plants
Number of plant kind Juan's mother want = 18
Find:
Probability [Randomly choose plant Juan's mother want]
Computation:
Probability of an event = Number of favorable outcome / Total number of outcomes
Probability [Randomly choose plant Juan's mother want] = Number of plant kind Juan's mother want / Total number of plant in store
Probability [Randomly choose plant Juan's mother want] = 18 / 30
Probability [Randomly choose plant Juan's mother want] = 3 / 5
Need help !
Is it linear , quadratic, exponential
Answer:
Exponential
Step-by-step explanation:
So lets look at the table.
When x = 1, y = 3
When x = 2, y = 9.
Hmmm, this doenst seem like x+number=y. It doesnt seem like a quadratic, where the values go up, then down, then up again. Or vise versa.
So this rules out linear and quadratic, for the x doesnt change by a constant, or change the direction of y.
This leaves exponential or none of the above.
When x = 3, y = 27
When x = 4, y = 81
This seems like a exponent, since:
3 to the first power is 3
3 to the second power is 9
3 to the third power is 27
and 3 to the fourth power is 81
Answer:
exponential function
Hope this helps! ;)
I need help again plz...
What value of x makes the 2 triangles congruent by HL? Find the length of CB
Step-by-step explanation:
here's your solution
==> Both traingle are congruent
==> BC = BD. [ c.p.c.t ]
==> x + 8 = 3x - 14
==> x - 3x = - 14 - 8
==> - 2x = - 22
==> x = 22/2
==> x = 11
now CB = x + 8 = 11 + 8
CB = 19
hope it helps
The box-and-whisker plot summarizes student scores on a physical fitness test. Students receive an award for scores at or above the upper quartile. What is the lowest score a student can get to receive an award?
Answer:
74
Step-by-step explanation:
To receive an award, student must obtain a score at or above the upper quartile, from.tye boxplot, the upper quartile is depicted by the endpoint of the box. Hence, the upper quartile of the distribution is 74. Hence only stude Ts who score 74 and above will receive an award Hence, the minimum score required is 74.
Circle A has a diameter of approximately 20 inches and an area of approximately 300 in2. Circle B has a diameter of
approximately 60 inches.
Which of these could be the area of Circle B?
Answer:
2700 in^2
Step-by-step explanation:
30x30x3(which is how they are rounding π) = 2700 in ^2
...........................................................
.
Answer:
3hope it help
Step-by-step explanation:
Use the Law of Cosines to find a. Round answer to the nearest tenth
Answer:
Step-by-step explanation:
Find the work done when a crane lifts a -pound boulder through a vertical distance of feet. Round to the nearest foot-pound.
Answer:
72000ft-1b
hope it helps
please mark brainliest
please help me
( will give brainliest )
any links or websites commented will be reported !
The circumference of a circle is 9π m. What is the area, in square meters? Express your answer in terms of π
Answer:
[tex]20.25\pi\:\mathrm{m^2}[/tex]
Step-by-step explanation:
Formulas to know:
Area of a circle: [tex]A=r^2\pi[/tex]Circumference of a circle: [tex]C=2r\pi[/tex]Since we know the circumference, we can use formula for the circumference of a circle to find the circle's radius:
[tex]9\pi=2r\pi,\\9=2r,\\r=4.5[/tex]
Now we can plug in [tex]r=4.5[/tex] into the formula for an area of a circle:
[tex]A=4.5^2\pi=\boxed{20.25\pi\:\mathrm{m^2}}[/tex]
Answer:
20.25 pi
Step-by-step explanation:
The circumference of a circle is given by
C = 2 * pi *r
9 pi = 2 * pi *r
Divide each side by 2pi
9pi / 2 pi = 2 pi r / 2 pi
4.5 = r
Now we can find area
A = pi r^2
= pi ( 4.5)^2
20.25 pi
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Answer:
12-27+9Y=5+6=90X5=800
Step-by-step explanation:
HELP!!! PRECALC Continuity problem, will give brain liest, thank you!!!
Answer:
Go to algebraic calculator
Step-by-step explanation:
Then go to Microsoft calculator it has everything
brainliest?
x+3x=40 what is x please
Answer:
x=10
Step-by-step explanation:
1. Combine like terms
4x=40
2. Divide 4 both sides to x alone
4x/4=40/4
x=10
Answer:
10
Step-by-step explanation:
x+3x=40
4x=40
x=40/4=10
There are 140 cars in a parking lot.Bob looks at 15 cars and finds out that 2 cars are gray-colored. Approximately how many cars in the parking lot are gray-colored?
Answer:
about 18.7
Step-by-step explanation:
What is the diameter of a hemisphere with a volume of 863 in', to the nearest tenth
of an inch?
Answe 33.2
Step-by-step explanation:
863÷3.14=274.8407643312 find the square root then multiply by 2
The diameter of the hemisphere is twice the radius,
d = 2r ≈ 16.6 inches
What is volume?Volume is the measure of the amount of space occupied by a three-dimensional object. It is usually expressed in cubic units, such as cubic meters, cubic feet, or cubic centimetres.
The volume of a hemisphere is given by V = (2/3)πr³, where r is the radius of the hemisphere.
We can solve for the radius as follows:
V = (2/3)πr³
863 = (2/3)πr³
r³ = (863 x 3) / (2π)
r³ ≈ 650.35
r ≈ 8.3 inches
The diameter of the hemisphere is twice the radius, so:
d = 2r ≈ 16.6 inches
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