Answer:
The equation to find the circumference is C=2πr. This means you do not need the diameter. However, if you did want to find the diameter, it is 2 times the radius.
Step-by-step explanation:
As a rule of thumb, one gallon of paint will usually cover 400 square feet. If Thomas is painting a hallway and the measurements are 12 feet high and 75 feet wide, what is the minimum amount of cans of paint he will need to paint the hallway? Question options: 1 2 3 4 5
Answer:
3
Step-by-step explanation:
Because if you multiply 12x75 you get 900, and if 1 gallon of paint covers 400 square feet then you will need 3 gallons to get to 900.
Answer:
3
Step-by-step explanation:
50.3 - 5.6 ÷ 0.7 × 1.6 of 3.5
Answer:
5.5 is the correct answer:)
Step-by-step explanation:
Hope this helped!!!
ASAP!!!!!!
WITH EXPLANATION
simple interest on a certain amount of money for 4 years at 4% per annum exceeds the compound interest on the same sum for 3 years at 5% per annum by ₹285,find the sum
are u from india ??????????
One juice and to sandwiches cost $70.00. One juice and four sandwiches cost $130.00.
What is the cost of one sandwich?
Step-by-step explanation:
One juice and to sandwiches cost $70.00. One juice and four sandwiches cost $130.00.
What is the cost of one sandwich?
Answer:
One sandwich costs $30
One juice costs $10
which expression fits this description??
Answer:
Step-by-step explanation:
We can immediately assume that the answer is either the first or third one based off of the second statement. A product is the result of multiplication, and if you see a number and letter together like in the first and third answers, it means they are to be multiplied. For example, 2a = 2 x a. With the first statement, there are 2 terms in all of the equations so that's no help, but the word sum is the result of addition. In which all two terms are added, so . . . also no help. :( Now the last statement. The thing that will conclude all of your questions. A quotient is the result of division, and it's supposed to be between b and 4. As we can see, in the third equation, they subtract b and 4. That's not division! So that leaves us with one answer. The first equation. . .
A 20 cup fruit salad that is 15% strawberries is in a large container
Answer:5
Step-by-step explanation:
Answer:
15/100 x 20 = 3
Step-by-step explanation:
15 percent of 20 is 3.
Consider 15 out of 100 since a percent is always considered out of hundred.
15
___ x 20 =
100
First thing is first, we ALWAYS have to find what the percent is of and its of 20 fruits.
So 15/100 x 20 would be your equation
we can simplify
15
___ x 20 ------> 1 = 15
100 -----> 5 ___ x 1 = 3
5
To simplify we can divide by 20 on the denominator and the factor.
The denominator of a fraction is three more than its numerator. When both the numerator and denominator are increased by one the fraction becomes 1/2. What is the original fraction?
Answer:
The original fraction is [tex]\frac{2}{5}[/tex]
Step-by-step explanation:
Let the numerator by X
Denominator is three more than its numerator i.e X +3
When both the numerator and denominator are increased by one the fraction becomes 1/2
[tex]\frac{X + 1}{X+3+1} = \frac{1}{2} \\\frac{X+1}{X+4} = \frac{1}{2} \\2X + 2 = X+4\\X = 2[/tex]
Thus, numerator = 2
Denominator = X +3 = 2+3 = 5
The original fraction is [tex]\frac{2}{5}[/tex]
Question 3
What is the slope of the line?
Please
Answer:
2
Step-by-step explanation:
How do I solve this please help no links
9514 1404 393
Answer:
$735
Step-by-step explanation:
We assume the cover needs to cover the pool only, not any extra area around the pool.
The cost is given per square foot, so to find the total cost, we need to know how many square feet the cover must cover. The cost will be found by multiplying the cost per square foot by the number of square feet.*
The dimensions of the pool are given as 35 ft by 70 ft. The pool area is the product of these dimensions.
A = LW
A = (70 ft)(35 ft) = 2450 ft²
Then the cost is ...
C = ($0.30/ft²)(2450 ft²) = $735
The cost to buy a pool cover is $735.
__
* This is the same rule you use for any purchase. The total cost is the cost per item multiplied by the number of items. Here, each "item" is 1 square foot of pool cover.
What is the solution to
(y = 3x - 30
x2 + y2 = 100
Answer:
x = 20
y = 30
Step-by-step explanation:
Answer:
x = 20
y = 30
Step-by-step explanation:
y = 3x - 30
2x + 2y = 100
2x + 2(3x - 30) = 100
2x + 6x - 60 = 100
8x - 60 = 100
8x = 160
x = 20
y = 3(20) - 30
y = 60 - 30
y = 30
The expression x2 - 10x + 24 is equivalent to (1) (x + 12)(x - 2) (3) (x + 6)(x + 4) (2) (x - 12)(x + 2) (4) (x - 6)(x - 4)
Answer:
D) (x-6)(x-4)
Step-by-step explanation:
(x-6)(x-4)=x^2-6x-4x+24=x^2-10x+24
An equilateral triangle has perimeter P. The length of one side is P/3. Which expression is equivalent to the length on one side
Answer: [tex]3\times \dfrac{P}{3}=P[/tex]
Step-by-step explanation:
Given
The perimeter of one equilateral triangle is P
The lengths of the equilateral triangle are equal
Suppose x is the length of each side
[tex]\therefore 3\times x=P\\\\\Rightarrow x=\dfrac{P}{3}[/tex]
i.e.
[tex]\Rightarrow 3\times \dfrac{P}{3}=P[/tex]
How many cubes with side lengths of 1/2 cm can fit inside the rectangular prism
Answer:
7/2 or 3.5 inches
Step-by-step explanation:
The volume of the rectangle=
length×width×height, so
V=1/2×2×7/2
V=1×7/2
V=7/2 cubic inches
Next, Volume of the cube=
side^3, or side×side×side
V=1/2×1/2×1/2
V=1/8 cubic inches
First question,
To find how many cubes with the side of 1/2 length that fir into the rectangular prism, take:
7/2÷1/8
=7/2×8
=28 cubes. As a result, there are 28 cubes that will fit into the prism
Second question,
The volume of the person is 7/2 cubic inches or 3.5 cubic inches. Hope it help!
find the vertex of f(x) = -x² + 2x + 7
Answer: There are no like terms.
Answer:=−x^2+2x+7
Step-by-step explanation: Hope this help :D
Answer:
the answer is [1/5,36/5]
Write the equation of the line in slope-intercept form.
Answer: The equation of the line in slope-intercept form is “y = 4/3x + 4.”
Identify the slope of x = 9, then complete a
table of values for the equation.
Answer:
It's undefined since it's a vertical line.
Step-by-step explanation:
add m to 8, then triple the result what expression would that be
Answer:
3(m+8)
Step-by-step explanation:
first you add m to 8, so you would do m+8. then you triple that, means multiply it by 3. so 3(m+8)
Answer:
(m+8)^3=m^3+512
Step-by-step explanation:
find the value of x. round to the nearest tenth. side length 16. angle 35. view picture below.
Answer:
[tex]\displaystyle x \approx 9.2[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityTrigonometry
[Right Triangles Only] SOHCAHTOA [Right Triangles Only] sinθ = opposite over hypotenuseStep-by-step explanation:
Step 1: Define
Angle θ = 35°
Opposite leg = x
Hypotenuse = 16
Step 2: Solve for x
Substitute in variables [Sine]: [tex]\displaystyle sin35^\circ = \frac{x}{16}[/tex][Multiplication Property of Equality] Isolate x: [tex]\displaystyle 16sin35^\circ = x[/tex]Rewrite: [tex]\displaystyle x = 16sin35^\circ[/tex]Evaluate trig: [tex]\displaystyle x = 16(0.573576)[/tex]Multiply: [tex]\displaystyle x = 9.17722[/tex]Round: [tex]\displaystyle x \approx 9.2[/tex]Two angles meet at a point on a straight line. One of the angles is 43o
. Work out the size of the other angle.
Answer:
d
Step-by-step explanation:
which coordinate point represents the x-intercept of the equation 5x + 7y = 35
Answer:
the answer is 5
Step-by-step explanation:
5 because mx+by=0
Answer:
intercept is (7,0)
Step-by-step explanation: x-intercept and y-intercept of the line 5x+7y-35 = 0. For, x-intercept, y=0. ∴x - intercept is 7.
Did research, Hope this helps if not am sorry.
Which is the equation of a parabola with vertex (0, 0), that opens to the left and
has a focal width of 12?
a. y2 = 12x
b. y2 = -12x
c.x = 12y
d. x = -12y
Answer:
Step-by-step explanation:
I'm going to guess that the square exponents are on the top y's only? then answer b) looks good
Answer:
b. y^2 = -12x
Step-by-step explanation:
The general form for the given parabola is y^2 = -4ax where the focus is at (-a, 0). The focal width is 4a which in this case = 12.
Help me!! pleaseee and thank uuu!
Answer:
B
Step-by-step explanation:
Answer:
d don't know how to explain it but i think its d
Which two triangles below are similar?
Answer:
Triangle A and B
Step-by-step explanation:
Both triangles have two same angles.
If Triangle A is rotated like Triangle B, they would be the same.
Vice versa, if Triangle B is rotated like Triangle A, it would be the same.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Can someone please solve these?
Answer:
Step-by-step explanation:
h = -6[tex]t^{2}[/tex] +20t + 4
I will use calculus, maybe that's not how you're supposed to do this
-12t +20 =0
12t = 20
t = 20 /12
t = 1 [tex]\frac{8}{12}[/tex]
t = 1 [tex]\frac{2}{3}[/tex]
there will be a max at 1.6666666666 seconds
-6*[tex]1.6666666666666^{2}[/tex] + 20 * 1.6666666666 +4
= 16.666666666666 + 33.333333333333 + 4
= - 16[tex]\frac{2}{3}[/tex] + 33 [tex]\frac{1}{3}[/tex] + 4
= 20[tex]\frac{2}{3}[/tex] feet max height ( not too high, for a rocket)
time of flight:
0 = -6[tex]t^{2}[/tex] +20t + 4
use quadratic formula to find t
-20 +- sqrt [ [tex]20^{2}[/tex] - 4*(-6)*4 ] / 2*(-6)
-20 +- sqrt [400 + 96 ] / -12
-20 +- sqrt [496 ] / -12
-20 +- 22.27105 / -12
try the negative option 1st
-42.27105 / -12
3.522 seconds. time of flight
when will the rocket be at 12' ? :
12 = -6[tex]t^{2}[/tex] +20t + 4
0 = -6[tex]t^{2}[/tex] +20t -8
use quadratic formula again to find t
-20 +- sqrt [ [tex]20^{2}[/tex] - 4*(-6)*(-8) ] / 2*(-6)
-20 +- sqrt [ 400 - 192 ] / -12
-20 +- sqrt [208 ] / -12
-20 - 14.4222 / -12
-34.4222 / -12
2.8685 seconds ( on the way down)
and
-20 + 14.4222 / -12
-5.578 / - 12
0.4648 seconds ( on the way up )
Estimate the value of 29.6 x 5.2
Answer:
29.6
Step-by-step explanation:
Carmina bought 20 pizzas for her party an hour after the party started 2/7 of the pizzas had been eaten how many pizzas have been eaten make an equation to solve a word problem.
Answer:
pizzas eaten =2/7 x 20
5 5/7 pizzas have been eaten
Step-by-step explanation:
pizzas eaten = 2/7 x 20
40 / 7 = 5 5/7
PLEASE HELP WILL MARK BRANLIEST
If f(x)= 4x-12 and the value of f(2)= -4, find f(5). *
11 times z=121
(11xz=121
Answer:
z will be11
11z = 121
z = 121/11
z= 11
Answer:
1=121= 11
Step-by-step explanation:
Solve the quadratic equation by using the quadratic formula. y=-8x^2+6x+3
a) 3±√33/8
b) 3±2√3/8
c) -6±√66/8
d) 3±i√3/4
Answer:
A) -3±√33 / 8
Step-by-step explanation:
y = -8x²+6x+3
x = -b±√(b²-4ac) / 2a
x = -(6)±√((6)²-4(-8)(3)) / 2(-8)
x = -6±√(36+96) / -16
x = -6±√(132) / -16
x = -6±2√33 / -16
x = -3±√33 / 8
x2 – 7x + 6 = -8
solve using factoring
Answer:
Step-by-step explanation:
Rewrite this in standard quadratic equation form: x^2 - 7x + 6 + 8 = 0, or x^2 - 7x + 14 = 0. This does not factor easily, so I will use the quadratic formula to find the roots and then write out the factors based upon the roots:
The discriminant is b^2 - 4ac, which here is (-7)^2 - 4(1)(14) = -7.
Because the discriminant is negative, we know that there are two unequal, complex roots. They are:
-(-7) ± i√7 7 ± i√7
x = ----------------- = ---------------
2 2
One factor is (x - [1/2]{7 ± √7} )