What's the radius of a circle with an area of 123 square feet? A. 6.26 ft. B. 39.17 ft. C. 26.32 ft. D. 3.14 ft.
peter walks 40 meters in 1 minute what is his walking rate in meters per second
A disc jockey must allow time for 24 minutes of commercials every hour, along with 4 minutes for news, 3 minutes for weather, and 2 minutes for public-service announcements. If each record lasts and average of 3 minutes, how many records per hour can the DJ play?
For integer values of a and b, b^a = 8. The ratio of a to b is equivalent to the ratio of c to d, where c and d are integers. What is the value of c when d = 10?
To find the value of c when d = 10, we first need to determine the values of a and b. Given that b^a = 8, we know that 8 is the result of raising b to the power of a.
Since the question states that a and b are integers, there are a limited number of possibilities to consider. Let's examine the possible combinations of a and b that satisfy this equation: [tex]1^3 = 1 2^3 = 8 3^2 = 9[/tex](which is not 8) [tex]4^2 = 16[/tex] (which is not 8) [tex]5^1 = 5 6^1 = 6 7^1 = 7 8^1 = 8[/tex]From these calculations, we find that the only combination that satisfies the equation is a = 3 and b = 2. Now, let's consider the ratio of a to b and the ratio of c to d.
The ratio of a to b is a/b = 3/2. The question states that the ratio of a to b is equivalent to the ratio of c to d, which means: a/b = c/d Given that d = 10, we can substitute the value into the equation: [tex]3/2 = c/10[/tex] Next, we can cross-multiply to solve for c: [tex]3 * 10 = 2 * c 30 = 2[/tex] c Dividing both sides by 2, we get: c = 15 Therefore, when d = 10, the value of c is 15. In conclusion, when d = 10, the value of c is 15 based on the given equation and calculations.
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Subtract 9 from z. 9-Z, Or Z-9
Help me asap!!! :) please
Mark you a brainly!
30 /10 = 3
so multiply 9 by 3
9*3 = 27
9/10 = 27/30
a = 27
What are the answers for both drop downs the first one is asking for 3.113 and the second is asking for 1.2795
Rachel and Sabrina belong to different local gyms. Rachel pays $35 per month and a one-time registration fee of $15. Sabrina pays only $25 a month with a one-time registration fee of $75. Write an equation to represent Rachel's total cost, T, as a function of the number of months, m.
there is a 20% markup on a tv if the tv is $450 before the markup what is the cost after the markup
On st. Patrick's day, 3/5 of the students in Ms. pikes band class are wearing green . If there are 60 students in her class , how many of them are wearing green?
Which equation can be used to find the number of wolves in the state on January 1? A zoologist is recording the loss of wolves in her state. She notes the number of wolves, w, in the state on January 1. One year later, there were 84 wolves in the state, which is 23 fewer wolves than were in the state a year earlier. What is the number of wolves in the state on January 1? w−84=−23 w−23=84 23−w=84 w + 23 = 84
Answer: w - 23 = 84
Step-by-step explanation:
You are standing above the point (5,4)(5,4) on the surface z=15−(2x2+3y2)z=15−(2x2+3y2). (a) in which direction should you walk to descend fastest? (give your answer as a unit 2-vector.)
To descend fastest from the point (5,4) on the surface z=15-(2x^2+3y^2), you should walk in the direction of the negative gradient vector, normalized to be a unit vector, which is approximately <0.640, 0.768>.
Explanation:To determine the direction in which you should walk to descend fastest from the point (5,4) on the surface z=15-(2x^2+3y^2), we can find the gradient of the surface at that point. The gradient vector will point in the direction of the steepest ascent, so the direction of the steepest descent is the opposite direction of the gradient vector.
First, calculate the partial derivatives of z with respect to x and y:
∂z/∂x = -4x
∂z/∂y = -6y
Next, evaluate these derivatives at the point (5,4):
∂z/∂x(5,4) = -4(5) = -20
∂z/∂y(5,4) = -6(4) = -24
The gradient vector at (5,4) is <-20, -24>. To get the direction of steepest descent, we take the negative of the gradient vector, which is <20, 24>.
Finally, normalize this vector to make it a unit vector (so it has a length of 1):
Length of gradient vector = √(20^2 + 24^2) = √(400 + 576) = √976 ≈ 31.24
The unit vector in the direction of steepest descent is <20/31.24, 24/31.24> ≈ <0.640, 0.768>.
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What is the measure of the smallest angle?
52°
61°
67°
69°
Answer:
52° is ur answer
Step-by-step explanation:
I just did the quiz so i know
Name all sets of numbers to which each real number belongs
A real number can belong to several sets of numbers, including the integers, rationals, irrationals, and reals. Integers are the set of whole numbers and their negatives, rationals can be expressed as a fraction of two integers, irrationals cannot be expressed as a fraction, and reals represent all possible numbers on the number line.
Explanation:A real number can belong to several sets of numbers, including the integers, rationals, irrationals, and reals.
Integers are the set of whole numbers and their negatives, including zero. They don't include fractions or decimals.
Rationals are the set of numbers that can be expressed as a fraction of two integers, like 3/4 or -5/2.
Irrationals are the set of numbers that cannot be expressed as a fraction, like √2 or π.
Reals represent all possible numbers on the number line, including integers, rationals, and irrationals.
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A water tank holds 24000 gallons. How many hours will it take for 2/3 of the water to be used if the water is used at an average rate of 650 gallons a day?
What does −2/3(12c−9)+14c simplify to?
Answer:
The simplified form of the provided expression is [tex]6c+6[/tex] or [tex]6(c+1)[/tex]
Step-by-step explanation:
Consider the provided expression.
[tex]\frac{-2}{3}(12c-9)+14c[/tex]
Use the distributive property:
[tex]a(b+c)=ab+ac[/tex]
By using the above property we can simplify it as shown:
[tex]\frac{-2}{3}\times 12c-\frac{-2}{3}\times 9+14c[/tex]
[tex]-2\times 4c+2\times 3+14c[/tex]
[tex]-8c+6+14c[/tex]
Add or subtract the like terms.
[tex]6c+6[/tex] or [tex]6(c+1)[/tex]
Thus, the simplified form of the provided expression is [tex]6c+6[/tex] or [tex]6(c+1)[/tex]
The simplest form of expression by applying distributive property would be, 6 (c + 1)
Given that,
The expression is,
[tex]\dfrac{- 2}{3} (12c - 9) + 14c[/tex]
Now, used the concept of distributive property to simplify the expression,
[tex]\dfrac{- 2}{3} (12c - 9) + 14c[/tex]
Apply distributive property,
[tex][\dfrac{- 2}{3} \times 12c - (\dfrac{- 2}{3} )\times 9] + 14c[/tex]
[tex][- 2 \times 4c + 2 \times 3] + 14c[/tex]
[tex][- 8c + 6] + 14c[/tex]
Combine like terms,
[tex]- 8c + 14c + 6[/tex]
[tex]6c + 6[/tex]
Take 6 as a common term,
[tex]6 (c + 1)[/tex]
So, the solution of expression 6 (c + 1).
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Is m=0.75d-2 proportional?
Answer:
No, the equation m=0.75d-2 does not represent proportional relationship.
Step-by-step explanation:
The given equation is
[tex]m=0.75d-2[/tex]
We need to check whether the given equation represents proportional relationship or not.
If variable y is proportional to variable x, then
[tex]y\propto x[/tex]
[tex]y=kx[/tex]
where, k is the constant of proportionality.
At x=0 the value of y is 0. It means, if a linear equation represents proportional relationship then it must be passes though the origin.
Substitute d=0 in the given equation.
[tex]m=0.75(0)-2[/tex]
[tex]m=-2[/tex]
The line passes through the point (0,-2).
Since the line does not pass through the origin, therefore it does not represent proportional relationship.
The number of Adult tickets is the same as the number of Child (age 5-12) tickets. A total of 38 tickets was purchased. What is the total cost of the tickets? Explain.
Data: Adult Tickets $23
Child Tickets $17
Under 5 $8
callie spent 3/4 hour on a science report and 1/3 hour on a social studies report. What fraction of an hour longer did she spend on the science report ?
The price of a calculator has decreased from $200 to $150. What is the percent of decrease?
A Pitcher of fruit punch holds 2 gallons , If 9 people share the entire pitcher equally how much punch does ecah person get
1.A system of two linear equations is graphed on a coordinate plane. If the system of equations has infinitely many solutions, which statement must be true?
A.On the graph, there is exactly one point (x,y) that satisfies both equations.
B.On the graph, any point (x,y) that satisfies one of the equations cannot satisfy the other equation.
C.On the graph, there are no points (x,y) that satisfy both equations.
D.On the graph, any point (x,y) that satisfies one of the equations must also satisfy the other equation.
2.Mark drank a total of 10 glasses of water and iced tea yesterday.
Each glass of water contained 8 ounces. Each glass of iced tea contained 12 ounces.
All together, he drank 96 ounces. The system of equations below models this situation.
x + y = 10
8 x + 12 y = 96
How many glasses of water did Mark drink yesterday?
A.3 glasses
B.4 glasses
C.5 glasses
D.6 glasses
Mark drank 6 classes of water. :) im probably late on answering this, sorry
write an equation of the line given its slope,m=3,and it's y-intercept b=10
What is the average rate of change of f(x) = −2x + 1 from x = −5 to x = 1?
Answer:-2
Step-by-step explanation:
Maxine bought items costing $5.25, $18.99, $2.99, and $17.50. She used a coupon worth $5.50. If Maxine had $60.00 before she went into the store, how much did she have when she left?
The complex number z = –1 + 3i can be expressed in trigonometric form as:
he average distance between Jupiter and the sun is 7.8 × 108 kilometers, and the average distance between the sun and Neptune is 4.51 × 109 kilometers. What is the approximate difference between these average distances?
Final answer:
The approximate difference between the average distances from the Sun to Jupiter and from the Sun to Neptune is approximately [tex]-3.71 * 10^9 km.[/tex]
Explanation:
The approximate difference between the average distances from the Sun to Jupiter and from the Sun to Neptune can be found by subtracting the average distance to Neptune from the average distance to Jupiter.
Average distance to Jupiter: 7.8 × 108 km
Average distance to Neptune: 4.51 × 109 km
Subtract the average distance to Neptune from the average distance to Jupiter:
[tex]= 7.8 * 10^8 km - 4.51 * 10^9 km[/tex]
= [tex]-3.71 * 10^9[/tex]
The approximate difference between the average distances is [tex]-3.71 * 10^9 km.[/tex]
A hollow ball is made of rubber that is 1 centimeter thick. The ball has a radius of 5 centimeters at the outside surface.
What is the approximate volume of rubber used to make the ball?
Answer: I got the same answer. It's 255.4 cm3
Step-by-step explanation:
What is the factored form of 6x2 + 11x – 10? (2x + )( x – )
Answer:
[tex]6x^2+11x-10=(2x+5)(3x-2)[/tex]
Step-by-step explanation:
we are given
[tex]6x^2+11x-10[/tex]
We can factor it
[tex]6x^2+11x-10=6x^2+15x-4x-10[/tex]
we can use grouping method
[tex]6x^2+11x-10=(6x^2+15x)-(4x+10)[/tex]
now, we can take out common terms
[tex]6x^2+11x-10=3x(2x+5)-2(2x+5)[/tex]
we can take 2x+5 from both terms
[tex]6x^2+11x-10=(2x+5)(3x-2)[/tex]
so, we get factor terms as
[tex]6x^2+11x-10=(2x+5)(3x-2)[/tex]
The factored form of 6x² + 11x - 10 is: (2x + 5)(3x - 2)
Factorization of Algebraic ExpressionsGiven the algebraic expression, 6x² + 11x - 10, it can be factorized as shown in the steps below:
6x² + 11x - 10
6x² + 15x - 4x - 10
(6x² + 15x) - (4x - 10)
3x(2x + 5) - 2(2x + 5)
6x² + 11x - 10 = (2x + 5)(3x - 2)
Therefore, the factored form of 6x² + 11x - 10 is: (2x + 5)(3x - 2).
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what is 4 1/2 divided by 3