The area of a circle is 4π ft². What is the circumference, in feet? Express your answer in terms of \piπ.
Answer:
C = 4 pi ft
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
Solving for r
4 pi = pi r^2
Dividing each side by pi
4 = r^2
Taking the square root of each side
sqrt(4) = sqrt(r^2)
2 = r
Now we can find the circumference
C = 2 * pi *r
C = 2*pi*2
C = 4 pi ft
CAN SOMEONE HELP ME WITH THIS PLEASE AND THANK YOU.
Answer:
7/20
Step-by-step explanation:
Take the time for history assignment and subtract the time for her English assignment
3/5 - 1/4
Get a common denominator of 20
3/5 *4/4 = 12/20
1/4 * 5/5 = 5/20
12/20- 5/20
7/20
not sure how to do this one! will mark brainliest
Answer:
[tex]\frac{1}{6}[/tex]
Step-by-step explanation:
[tex]-\frac{12}{16} + \frac{11}{12}[/tex]
take lcm of the denominator
lcm=48
[tex]\frac{-12*3 + 11*4}{48}[/tex]
[tex]\frac{-36 + 44}{48}[/tex]
[tex]\frac{8}{48}[/tex]
[tex]\frac{1}{6}[/tex]
Answer:
[tex]=\frac{1}{6}[/tex]
Step-by-step explanation:
[tex]-\frac{12}{16}+\frac{11}{12}[/tex]
the lcm of 16 and 12 is 48
[tex]-\frac{12}{16} =-\frac{36}{48}[/tex]
[tex]\frac{11}{12} =\frac{44}{48}[/tex]
[tex]-\frac{36}{48} +\frac{44}{48}=\frac{8}{48}[/tex]
[tex]=\frac{1}{6}[/tex]
Hope this helps
Three people build a wall in 10 days. How long would it take five people?
Answer:
6 days for 5 people
Step-by-step explanation:
3 x 10 = 3030/5 - 66 daysWhat specific measure of a geometric figure is shown in the image?
A. A 165 angle
B. A 15 angle
C. A 15mm side length
D. A 180 mm side length
Fill in the blank. In the triangle below, x=__. Round your answer to two decimal places.
Given:
The figure of a right triangle.
To find:
The value of x.
Solution:
In a right triangle,
[tex]\tan \theta=\dfrac{Perpendicular}{Base}[/tex]
In the given right angle triangle,
[tex]\tan 52^\circ=\dfrac{x}{35}[/tex]
[tex]1.2799\times 35=x[/tex]
[tex]44.7965=x[/tex]
Approximate the value to two decimal places.
[tex]x\approx 44.80[/tex]
Therefore, the value of x is about 44.80 units.
What is the solution to the system of equations below?
y = negative 3 x + 5 and y = 4 x minus 2
and there is no option choice of -2,-5
Step-by-step explanation:
please see my attachment
What is the value of x?
Answer:
x = [tex]29^{o}[/tex]
Step-by-step explanation:
Looking at the right triangle we see two congruent sides, which means that we can find the angles:
180 - 64 = 116° for both bottom angles of the right triangle, so 58° (116°/2).
Looking at the middle angle we know that left corner from the left triangle is 58° so the angle in the middle would be 180 - 58 = 122°.
Since the right triangle equals to 180° then we can find the missing values including x:
180 - 122 = 58° is the total angle for each corner of the right triangle. So x would be 58/ 2 = 29°.
Therefore x = 29°.
Please hurry
Find the value of cos P rounded to the nearest hundredth, if necessary
Answer:
cosP = 4/5
Step-by-step explanation:
cosP= b/h = b/√(b²+p²) = 24(√(24²+18²)= 24/30= 4/5
Solve using the quadratic formula
2x^2+x+67=0
Answer:
[tex]\displaystyle x=\frac{-1 \pm i\sqrt{535}}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Multiple RootsStandard Form: ax² + bx + c = 0Quadratic Formula: [tex]\displaystyle x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}[/tex]Algebra II
Imaginary Root i = √-1Step-by-step explanation:
Step 1: Define
Identify
2x² + x + 67 = 0
a = 2
b = 1
c = 67
Step 2: Solve for x
Substitute in variables [Quadratic Formula]: [tex]\displaystyle x=\frac{-1 \pm \sqrt{1^2-4(2)(67)}}{2(1)}[/tex]Multiply: [tex]\displaystyle x=\frac{-1 \pm \sqrt{1^2-4(2)(67)}}{2}[/tex][√Radical] Evaluate exponents: [tex]\displaystyle x=\frac{-1 \pm \sqrt{1-4(2)(67)}}{2}[/tex][√Radical] Multiply: [tex]\displaystyle x=\frac{-1 \pm \sqrt{1-536}}{2}[/tex][√Radical] Subtract: [tex]\displaystyle x=\frac{-1 \pm \sqrt{-535}}{2}[/tex][√Radical] Simplify: [tex]\displaystyle x=\frac{-1 \pm i\sqrt{535}}{2}[/tex]This question doesn’t make sense to me
Answer:
2
Step-by-step explanation:
Average rate of change is
f(x2) - f(x1)
----------------
x2 -x1
We know x2 =2 and f(x2) = 5
x1 = 1 and f(x1) = 3
Using the formula
5-3
-----------
2-1
2/1
2
which is the correct classification square root of 32?
Answer:
5.65
Step-by-step explanation:
But if you need to round it would be 6.
Hope this helps!
Good Luck!
Someone pls help me ill give out brainliest pls don’t answer if you don’t know
Answer:
A
Step-by-step explanation:
18 * 18 = 324
19 * 19 = 361
The area of the frame is 357 sq in. which is between 324 sq in. and 361 sq in., so the side is between 18 in. and 19 in.
Answer: A.
Answer:
Option A . Between 18 and 19
Step-by-step explanation:
Area = a²
357 = a²
[tex]\sqrt{357} = a\\\\a = 18.9 \ in[/tex]
PLS ANSWER FAST 60 PTS
Answer:
72 sqrt(3) ft^2
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
We can find the height by
tan theta = opp /adj
tan 60 = h /12
12 tan 60 = h
12 sqrt(3) = h
Then we can find the area
A = 1/2 bh where b is the length of the base and h is the height
A = 1/2 ( 12) ( 12 sqrt(3))
A = 72 sqrt(3) ft^2
PLEASE HELP ME!!! WILL MARK BRAINLIEST
Answer:
The first one is correct
Step-by-step explanation:
a^2-1 + A+1
Since the -1 and +1 cancel out that leaves us with just a^2+a
Answer:
The answer is d
Step-by-step explanation:
[tex]a^{2} -1 + a + 1\\[/tex]
To add variables you count how many variables there are, and in this case, there are two a's
so it is going to be [tex]2a^{2}[/tex]
and 1 - 1 = 0
The answer would be [tex]2a^{2}[/tex]. Thank you
If you apply the changes below to the cubic parent function, F(x)=x3, what is the equation of the new function if it reflects across the y-axis and vertically stretches by multiplying by 7
Answer:
g(x) = 7(-x)³
Step-by-step explanation:
The cubic parent function is given as; f(x) = x³
Now, we are told that it reflects across the y-axis. This means that the new function will take the form;
g(x) = f(-x)
Thus, the new function is;
g(x) = (-x)³
Now,we are told that this new function stretches by multiplying by 7. Thus, we now have;
g(x) = 7(-x)³
Jalen says that the height, radius, and diameter of a cone lie entirely on the base of the cone. What is Jalen’s error?
The height does not lie on the base because it is perpendicular to the base.
The radius does not lie on the base because it contains the center of the base.
The diameter does not lie on the base because it contains a radius of the circle.
The base does not contain the height, the radius, or the diameter because it is a circle.
Answer:
A, or "The height does not lie on the base because it's perpendicular to the base."
Step-by-step explanation:
EDGE 2021
Option A is correct, the height does not lie on the base because it is perpendicular to the base.
What is Three dimensional shape?a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.
Given that Jalen says that the height, radius, and diameter of a cone lie entirely on the base of the cone.
We have to find the Jalen’s error.
As we know that height does not lies on the base because it is perpendicular to the base.
The Jalens error is that height does not lie on the base because it is perpendicular to the base is a error statement.
Hence, option A is correct, the height does not lie on the base because it is perpendicular to the base.
To learn more on Three dimensional figure click:
https://brainly.com/question/2400003
#SPJ7
Jacob buys 8 copies of a book for presents for friends. It costs her a total of $119.60. Write an equation that can be used to find out how much each book, b, was sold for.
Answer:
8b=119.60
Step-by-step explanation:
8b=119.60
B=14.95
SOMEONE PLEASE PLEASE HELP ME!!!
9514 1404 393
Answer:
C
Step-by-step explanation:
We assume you want these in order by angle measure in some consistent units. Degrees is a reasonable unit to use here.
π radians = 180°
Substituting 180° where you see π, you find the angle values to be ...
2π = 2(180°) = 360°
7π/6 = 7/6(180°) = 210°
π/4 = (1/4)(180°) = 45°
Then the angles from least to greatest are ...
38°, 45°, 80°, 210°, 360°
or
38°, π/4, 80°, 7π/6, 2π . . . . matches the third choice
Ciara is naking a new outfit she needs 2 1/2 yards of the fabric for the shawl and 1 3/4 yards of fabric for the dress. If she has 3 yards of fabric,how much more does she needs?If the dance outfit is charged at $16 per yard how much will the dance outfit cost
Answer:
1 1/4 yards
$20
Step-by-step explanation:
The amount of fabric more that she needs can be determined by subtracting the sum of the yards needed for the shawl and the dress from the fabric she has
sum of the yards needed for the shawl and the dress =
[tex]2\frac{1}{2} + 1\frac{3}{4}[/tex]
[tex]3\frac{2 + 3}{4}[/tex] = [tex]3\frac{5}{4}[/tex] = [tex]4\frac{1}{4}[/tex]
Yards needed
[tex]4\frac{1}{4} - 3[/tex] = [tex]1\frac{1}{4}[/tex]
cost of dance outfit = $16 x [tex]1\frac{1}{4}[/tex]
[tex]\frac{5}{4}[/tex] × $16 = $20
quadratic formula?
2x^2-4x+2=0
A. 1
B. -4
C. 6
D. -2
E. 2
What is the approximate measure of the leg opposite of angle A???
Answer:
8.7 cm
Step-by-step explanation:
take 60 degree as reference angle
using sin rule
sin 60=opposite/hypotenuse
[tex]\frac{\sqrt{3} }{2}[/tex]=opposite/10
[tex]\frac{\sqrt{3} }{2} * 10[/tex]=opposite
[tex]\sqrt{3} *5[/tex] = opposite
[tex]5\sqrt{3}[/tex] =opposite
8.66=opposite
8.7 =opposite
A car can travel 76 miles on 4 gallons of gasoline. How far can it travel on 8
gallons?
Answer:
152 gallons
Step-by-step explanation:
76÷4=19
19x8=152
Answer:
152 miles
Step-by-step explanation:
76 x 2 = 152
Determine whether the triangles are congruent. Explain your reasoning .
SAS (Side, Angle, Side) or ASA (Angle, Side, Angle)
Un vehículo se mueve en línea recta a una velocidad de 144 km/h durante 45 minutos. ¿Qué distancia recorre? Dar la respuesta en metros.
Ayudaaaaaa
Answer:
I can't understand.
Step-by-step explanation:
Sorry
BRAINILEST PLZZZZZzzzzz
Answer:
Base:3
Height:5
Area= 15
Step-by-step explanation:
Formula=BxH
3x5=15
I need help with this 20 points
Answer:
I dont understand that sorry
Can i plz get some help been stuck for while
What is the volume of the shape shown
Answer:
Yea sure its 102.5meters squared
The difference of two positive numbers is 14. The larger is twice the smaller decreased by 4. Find the two numbers.
X (smaller value)
X (larger value)
Answer:
the answer is given on the picture
First, Diana scores 12 points in total with three arrows. On her second turn, she scores 15 points. How many points does she score on her third turn?
Answer:
Third turn point = 21 points
Step-by-step explanation:
Given:
First turn point = 12
Second turn point = 15
Find;
Third turn point
Computation:
First turn point = 12
Assume;
Point for outer circle = a
Point for inner circle = b
So,
3a = 12
Point for outer circle = 4 point
Second turn point = 15
So,
2a + b = 15
2(4) + b = 15
Point for inner circle = 7
Third turn point = 3 x 7
Third turn point = 21 points