Step-by-step explanation:
pi x r^2
3.14 x (2×2) = 12.56
Answer:
area of circle=πr^2= 3.14*4ft=12.56ft
(5p-6pq+2q) (2p2+372)expand.
Answer:
(7p_6pq+) 2p2+ 372 =11p_6pq+372
Can someone simplify? I'm confused-
If f(x) = 5x – 2,
find f(3)
f(3) = 13
find f(-4)
|(-4) =
Enter your next step here!
Answer:
Step-by-step explanation:
f(x)=5x-2
f(3)=5*3-2
=15-2
=13
f(-4)=5*-4-2
=-20-2
=-22
Answer:
the answer is -22
Step-by-step explanation:
5*(-4)-2
= -22
ILL MARK AS BRAINLESS PLS HELP
Answer:
95-3^4=14
Step-by-step explanation:
3^4=81
95-81=14
Part A: 176
Part B: First, I did is multiple 3 to the common denominator by 4 times with the same number and that would give you a positive number of 81, then I combined 81 with 95 and your solution is 176.
Step-by-step explanation:
Part A:
-3^4 = -3x-3x-3x-3
-3^4 = 81
95+81 = 176
What is the range of 149 111 171 166 152 129 162 144
find the value of a and b in x^2+2x=13
Answer:
a =1 and b =2
Step-by-step explanation:
The standard quadratic is written in the form
ax^2 +bx+c =0
x^2 +2x -13 =0
a =1 and b =2
Of the first fifteen kindergartners, four of them select treat bags containing bubbles, and eleven of them select treat bags containing sidewalk chalk.
The next kindergartner in line is ____ to select a treat bag containing bubbles than of sidewalk chalk
Equally likely
Less likely
More likely
30°
Noah is trying to draw a triangle with a angle and side lengths
of 4 cm and 6 cm.
.
He uses his ruler to draw a 4 cm line segment.
30°
• He uses his protractor to draw a angle on one end of the line
segment.
ANSWER BOTH QUESTIONS ILL GIVE BRANLIEST AND LOTS OF POINTS .
Noah could draw a triangle with side lengths 4 cm, 6 cm, and approximately 10.39 cm, with angles of 30°, 30°, and 120°.
How to solveYes, there is a different triangle Noah could draw. Since Noah has only drawn one side and one angle, he can create two different triangles using the Angle-Side-Side (A S. S) ambiguity
To find the other possible triangle, we need to calculate the angle opposite the 6 cm side. In this case, the given angle is 30°. Using the sine rule, we can find the sine of the opposite angle (let's call it θ):
sin(θ) / 6 = sin(30°) / 4
sin(θ) = (6 * sin(30°)) / 4
sin(θ) ≈ 0.5
θ ≈ 30°
Since the sum of angles in a triangle is 180°, the other angle in the triangle is:
180° - 30° - 30° = 120°
Now, we can use the sine rule again to find the length of the side opposite this new angle:
x / sin(120°) = 6 / sin(30°)
x ≈ 6 * sin(120°) / sin(30°)
x ≈ 10.39 cm
Therefore, Noah could draw a triangle with side lengths 4 cm, 6 cm, and approximately 10.39 cm, with angles of 30°, 30°, and 120°.
Read more about geometry here:
https://brainly.com/question/19241268
#SPJ1
The graph below represents which system of inequalities?
Answer:
Graphing Systems of Linear Inequalities
To graph a linear inequality in two variables (say, x and y ), first get y alone on one side. ...
If the inequality is strict ( < or > ), graph a dashed line. ...
Finally, pick one point that is not on either line ( (0,0) is usually the easiest) and decide whether these coordinates satisfy the inequality or not.
Sabe-se que o preço a ser pago por uma corrida de táxi inclui uma parcela fixa, que
é denominada bandeirada, e uma parcela variável, que é função da distância percorrida. Se o preço
da bandeirada é R$4,60 e o quilômetro rodado é R$0,96, calcule a distância percorrida por um
passageiro que pagou R$19,00 para ir de sua casa ao shopping. me ajudem por favor.
Answer:
Acho que talvez 200 $ Não tenho certeza, mas espero que ajude
Step-by-step explanation:
The graph shows the cost of pizzas, including delivery, at a local pizza restaurant.
What is the cost of 4 pizzas, including delivery?
a.
$35.00
b.
$40.00
c.
$45.00
d.
$30.00
9514 1404 393
Answer:
d. $30.00
Step-by-step explanation:
Read the value from the graph. The cost for 4 pizzas delivered is $30.00.
The local muffler replacement shop charges $75 for parts and $25 per hour for labor. Write a expresstion with parentheses to describe the cost, in dollars, of a replacement if the job takes 4 hours.
Answer:
Step-by-step explanation:
75+ 25x
75+25(4)
75+100
175
Dan earns £8.50 per hour. how much will he learn for 8 hours work?
Answer:
68
Step-by-step explanation:
Write the equivalent percent for each fraction.
72
%
41,000
%
1025
%
38
%
72%=18/25
41000%=410/1
1025%=41/4
38%=19/50
Answer:
72% = 18/25
41000 = 410/1
1025 = 41/4
38 = 19/50
Step-by-step explanation:
I put into the calculator...if that makes sense
Two researchers are studying the decline of orangutan populations. In one study, a population of 784 orangutans is expected to decrease at a rate of 25 orangutans per year. In a second study, the population of a group of 817 orangutans is expected to decrease at a rate of 36 per year. After how many years will the two populations be the same?
The two populations will be the same after
years.
Answer:
3 years
Step-by-step explanation:
Let y = number of orangutans, and let x = number of years.
For each study, the population, y, after x years is:
First study:
y = 784 - 25x
Second study:
y = 817 - 36x
We set the populations equal and solve for x, the number of years.
784 - 25x = 817 - 36x
Add 36x to both sides. Subtract 784 from both sides.
11x = 33
Divide both sides by 11.
x = 3
Answer: 3 years
Find the center and the radius of the circle given this equation:
2
x + 4x + y ² -10y +20=0
Answer:
vertex: (5/6,5)
focus: (- 2/3, 5)
axis of symmetry: y = 5
directrix: x = 7/3
Step-by-step explanation:
use the vertex form to determine the values of a.h. and k and use these values to find the direction the parabola opnes, vertex, foucs, axis of symmetry, and directrix
The cost of 6 pounds
of coffee is $3.
Answer:
ok 2 pound per 1 doller and 1 pund per0.50 cent
Step-by-step explanation:
You are planning to work in the summer (13 weeks). You
are deciding between working as a lifeguard or a camp counselor. The lifeguard job
pays $12 per hour and a $500 signing bonus. The camp counselor job pays $15 per
hour with no signing bonus.
Answer:
(a) Equations for both
[tex]y = 500 + 12x[/tex] --- lifeguard
[tex]y = 15x[/tex] --- camp counselor
(b) Total pay for 5 days
Lifeguard pays $800
Camp counselor pays $375
(c) Which pays more
Lifeguard job pays more
Step-by-step explanation:
Let
[tex]x \to hours[/tex]
[tex]y \to total\ pay[/tex]
Given
Lifeguard job
[tex]Signing\ bonus = \$500[/tex]
[tex]Rate = \$12/hr[/tex]
Camp counselor job
[tex]Signing\ bonus =\$0[/tex]
[tex]Rate = \$15/hr[/tex]
Solving (a): The equation for both
The total pay for each job is calculated as:
Total Pay = Signing Bonus + Rate * Hours
So, we have:
Lifeguard
[tex]y = 500 + 12*x[/tex]
[tex]y = 500 + 12x[/tex]
Camp counselor
[tex]y = 0 + 15 * x[/tex]
[tex]y = 15x[/tex]
Solving (b): Total pay for 5 days
First, we calculate the total hours worked in 5 days
[tex]x = 5hrs/day * 5days[/tex]
[tex]x = 25hrs[/tex]
So, the pay for each is:
[tex]y = 500 + 12x[/tex]
[tex]y =500 + 12*25[/tex]
[tex]y =800[/tex] --- Lifeguard
[tex]y = 15x[/tex]
[tex]y = 15 * 25[/tex]
[tex]y = 375[/tex] --- camp counselor
Solving (c): Which job pays more
By comparing the solution in (b)
[tex]800 > 375[/tex]
Hence, lifeguard job pays more
Marcy is taking part in a summer movie club. She will earn 3 points for each movie she attends throughout the summer. Which equation represents the relationship between y, the total points, and x the number of movies?
a
\large y=3x
b
\large y=3+x
c
\large x=3y
d
\large x=y+3
help me please {8×25}-{35+11}
Answer:
Step-by-step explanation:
[8*25]-[35+11]
=200-[35+11]
=200-46
=154
Answer:
154
Step-by-step explanation:
(8*25)-(35+11)
=200-46
=154
Let h(x) = x*2 + kw - 8. If h(-1) = -5, what is the value of h(4)?
Help
Answer:
h(4) = 0
Step-by-step explanation:
Hoping its ' kx '
[tex]h(x) = x^2 + kx -8 \\\\h(-1) = (-1)^2 + k(-1) - 8\\\\-5 = 1 - k -8\\\\-5 = -k -7\\\\-5 + 7 = -k\\\\2 = -k\\-2 = k[/tex]
Now we have k = -2. We will find h(4).
[tex]h(4) = (4)^2 + (-2)(4) - 8 = 16 -8 - 8 = 0[/tex]
Answer:
h(4) = 0
Step-by-step explanation:
GIVEN :-
A quadratic function h(x) = x² + kx - 8h(-1) = -5TO FIND :-
Value of h(4)SOLUTION :-
To find the value of h(4) , you need to find 'k' first by using the given facts.
[tex]h(-1) = (-1)^2 + k(-1) - 8 = -5[/tex]
[tex]=> 1 - k - 8 = -5[/tex]
[tex]=> -k - 7 = -5[/tex]
Add both the sides by 7.[tex]=> -k - 7 + 7 = -5 + 7[/tex]
[tex]=> -k = 2[/tex]
Multiply both the sides by -1.[tex]=> -k(-1) = 2(-1)[/tex]
[tex]=> k = -2[/tex]
Putting the value of k,
[tex]h(4) = (4)^2 + (-2)(4) - 8[/tex]
[tex]= 16 - 8 - 8[/tex]
[tex]= 16 - 16[/tex]
[tex]= 0[/tex]
Which phrase correctly represents the algebraic expression 3t?
A. The sum of three and a number.
B. The product of three and a number.
C. The quotient of three and a number.
D. The difference of three and a number.
Solve for xx. Round to the nearest tenth, if necessary.
Answer:
x = 4.3
Step-by-step explanation:
[tex]cos 21 = \frac{adjacent}{hypotenuse} = \frac{4}{x}\\\\x = \frac{4}{cos21} = 4.28[/tex]
x= 4.3
Answer:
Step-by-step explanation:
take 21 degree as reference angle
using cos rule
cos 21=adjacent/hypotenuse
0.93=4/x
x=4/0.93
x=9.67
x=9.7
Select the correct answer.
The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?
Answer:
7 inches
Step-by-step explanation:
6x7=
42
The triangle shown below has an area of 16 units^2
Find x.
Answer:
8 units squared
Step-by-step explanation:
Here's the formula of a triangle
base*height divided by 2
So, we know that the base is 4.
We have to work backwards.
16*2 is 32
32 divided by 4 is 8.
Now let's see
8*4 is 32 divided by 2 is 16!
Hope you understand :)
What is the coordinates of the missing vertex?
should be (5,-5) just because its in the 5 then when its going down its -5
Find the diameter of a circle with a radius of 13 ft.
Answer:
diameter will be 26ft that's D
Pre-calc - image attached
Answer:
Step-by-step explanation:
We see that if we do a direct substitution for x as 1 we have a 0 in the denominator, which is a big no-no. So we try to manipulate the function so that doesn't happen. We can factor the numerator. When we do that we get
[tex]\lim_{x \to 1} \frac{(x-1)(x^2+x+1)}{(x-1)}[/tex] The (x-1) terms cancel out leaving us with just
[tex]\lim_{x \to 1} (x^2+x+1)[/tex] which is no longer a problem! This limit is found by subbing in a 1 for x and doing the math. The limit is 3.
Use the equation below to find a, if b=11 and c=13.
a=28-b-c
a=?
WILL GIVE BRAINLIEST!
Directions: Simplify each term by factoring.
1. 3rs
2. 12xy
3. 5x2
4. 36x2
5. 25x2
6. 30x2
7. 5x3
8. 24y3
9. 9xy
10. 12x4
Answer:
1234567890-=
Step-by-step explanation:1234567890-
