Answer: 180
Step-by-step explanation:
Given
The population of 45 foxes doubles in 10 year period
Population follows [tex]y=45\cdot 2^x[/tex]
After 20 years i.e. x=2 Population is given by
[tex]y=45\cdot 2^2=45\times 4\\y=180[/tex]
Thus, there will be 180 foxes after 20 years
Whats the area of a circle with a circumference of \blueD{50.24}50.24start color #11accd, 50, point, 24, end color #11accd units.
Answer:
[tex]A=200.96\ unit^2[/tex]
Step-by-step explanation:
Given that,
The circumference of the circle, C = 50.24 units
We need to find the area of the circle.
The formula for the circumference of the circle is given by :
[tex]C=2\pi r[/tex]
r is the radius of the circle
[tex]r=\dfrac{C}{2\pi}\\\\r=\dfrac{50.24}{2\times 3.14}\\\\r=8\ units[/tex]
The formula for the area of a circle is given by :
[tex]A=\pi r^2\\\\A=3.14\times 8^2\\A=200.96\ unit^2[/tex]
So, the area of the circle is equal to [tex]200.96\ unit^2[/tex].
Which equation has no real solutions?
A 2x2 + 2x + 15 = 0
B 2x2 + 5x – 3 = 0
C 1 x2 + 7x + 2 = 0
D x2 - 4x + 2 = 0
3x – 9y + 2x – 2x
simplify
Answer:
3x-9y
Step-by-step explanation:
both 2x's in the equation cancel out to zero leaving the answer
Help ASAP
Here is a system of linear equations: -2x + y = 7
6x + y = 11
What is the solution to the system of equations shown?
A
(1/4, 7 1/2)
B.
(2, 11)
c.
(1/2, 8)
D.
(3, -7)
Yes
Answer:
c. (1/2, 8)
Step-by-step explanation:
To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.
Choose one of the equations and solve it for x by isolating x on the left hand side of the equal sign.
-2x + y = 7
Step 1: Subtract y from both sides of the equation.
-2x = -y + 7
Step 2: Divide both sides by -2
x = 1/2y - 7/2
Substitute what you see above this statement for y in the other equation.
6(1/2y - 7/2) + y = 11
Step 3: Multiply 6 by 1/2y - 7/2.
3y - 21 + y = 11
Step 4: Combine y and 3y.
4y - 21 = 11
Step 5: Add 21 to both sides
4y = 11 + 21
4y = 32
Step 6: Divide both sides by 4.
y = 32/4
y = 8
Step 7: Substitute 8 for y in x = 1/2y - 7/2 Because the resulting equation contains only one variable, you can solve for x directly.
x = 1/2(8) - 7/2
Step 8: Multiply 1/2 by 8.
x = 4 - 7/2
Step 9: Add -7/2 to 4.
x = 1/2
The system is now solved, and we get C (1/2, 8) as our answer.
Answer:
C
Step-by-step explanation:
I did the test myself
the quotient of 22 and a number a
Write the phrase as an expression
Answer:
22/a
Step-by-step explanation:
The quotient of 22 and a number = 22/a
Help please, not sure how to do this...
Answer:
8.38
Step-by-step explanation:
The underlined number is in the hundredths place, so that means that we're going to round there. That means that you look at the number to its right and if it's lower than 5, it stays the same. However, if it's 5 or higher, you round it up. For example, if the number was 8.386, we would round it to 8.39.
What is the value of x in the equation −8 + x = −2?
NEED ASAP
a board that is 3 yards long is to be cut into 4/5 equal-size pieces. how many whole pieces can be cut?
Answer:
Only 3 boards can be cut if they are whole
Hey, so I REALLY want to rank up and I just need 2 more "Brainliests" so if you like my answer, can you please give me a Brainliest? If not, that's okay! Thank you so much!
Guys pls help me!!!!!!!!
Answer:
D. y = -x^2 + 1
Step-by-step explanation:
please help me im bad at math and i math you as brainlest if you help me
Answer:
1st one
Step-by-step explanation:
HELP ASAP PLEASE!
Write a rule for the sequence.
4, 8, 16, 32, ...
Start with 4, and multiply by 2 repeatedly.
Start with 4, and add 8 repeatedly.
Start with 4, and add 2 repeatedly.
Start with 2, and multiply by 4 repeatedly.
can someone help please??
Answer:
iput the equation into my calculator and i graphed it and found the roost
Step-by-step explanation:
the answer is d
Can u help solve this step by step?
Answer:
[tex]\sqrt{28}[/tex]
Step-by-step explanation:
It is given that the triangle (QRS) is right, thus one can use the Pythagorean theorem to solve this problem. The Pythagorean theorem states,
[tex](a)^2+(b)^2=(c)^2[/tex]
Where (a) and (b) are the legs or the sides adjacent to the right angle and (c) is the hypotenuse or the side opposite the right angle. The unknown side in the triangle is a leg, thus, let (b) represent this value. Substitute in the given values and solve,
[tex](6)^2+(b)^2=(8)^2\\\\36+b^2=64\\\\b^2=28\\\\b=\sqrt{28}[/tex]
When identifying properties of n - sided polygons where 3 _< n <_ 10. What does 3 <_ n <_ 10 means ?
9514 1404 393
Answer:
3 ≤ n ≤ 10 means "three is less than or equal to n, which is less than or equal to 10"
you're concerned with polygons having 3 to 10 sides, inclusive.
Step-by-step explanation:
The symbol ≤ means "less than or equal to." The compound inequality ...
3 ≤ n ≤ 10
means the value of n may range from 3 to 10, inclusive.
__
In the present context, where n is a number of sides, it means you're concerned with polygons that are any of ...
triangle, quadrilateral, pentagon, hexagon, ...
heptagon, octagon, nonagon, decagon
HELP PLEASE
Determine the solution to the following system of equations.
y = -2x2 + 4x + 8
y = -4x + 16
Answer:
(x, y) =([tex]\frac{9}{2}[/tex], -2)
um yuh?
Choose all of the expressions that are equal to 1,024.
a. 4 × 4 × 4 × 4 × 4
b.5 × 5 × 5 × 5
c.4/5
d.5/4
.e2/10
Giving brainliest for the correct answer
Answer:
8
Step-by-step explanation:
all sides are equal if its a square therefore a given length will be multiplied four times since all sides are equal
Answer:
8 in.
Step-by-step explanation:
Perimeter of square = 4l = 4 * 2 =. 8 in.
what is the perimeter of the larger triangle?
42 ft
Source(s):
Dude trust me
I don’t understand this. Please help
Answer:
x = 150
Step-by-step explanation:
(n-2)180 (n = the amount of sides)
(12 - 2)180
(10)180
1800
1800/12 = 150
The length of one edge of a cube is 7 units. What is the volume of this cube in cubic units? HELPPPPPP JUSTIFY THE ANSWER PLEASEEE
Answer:
Step-by-step explanation:
A cube has an edge length of 5 inches
When I know the side length of a cube, I can find its surface area and express it using appropriate units.
I can write and explain the formula for the surface area of a cube.
The volume of a cube with edge length [tex]S^{}[/tex] is .[tex]S^{3}[/tex]
A cube has 6 faces and they are all identical squares. The surface area of a cube with edge length [tex]S^{}[/tex] is. 6 DIVIDE [tex]S^{2}[/tex]
This is geometry please help
Answer:
9
Step-by-step explanation:
mn ~Jk
mn x 5/3 = 15
mn = 15 x 3/5
MM = 9
What is the Alternate Hypothesis for the following situation:
At most 60% of American vote in the presidential elections.
Answer:
The alternative hypothesis is; Hₐ;
[tex]\hat p[/tex] > 60%
Step-by-step explanation:
The given hypothesis of the number of Americans that vote in the presidential election is;
Hypothesis; At most 60% of Americans vote in the presidential elections
Therefore, the hypothesis states that the percentage of Americans that vote in the presidential ≤ 60%
The given hypothesis is the null hypothesis due to the presence of one of the operators ≤, ≥, or =
The null hypothesis is therefore, H₀: [tex]\hat p[/tex] ≤ 60%
Therefore, the alternative hypothesis is; Hₐ; [tex]\hat p[/tex] > 60%.
Write the equation Y=mx+b Not just the rate of change
Answer:
y=2/5x+8/5
Step-by-step explanation:
so say you plot a graph of rain against the hours the gradient would be the rate of change and the information given as your points and the gradient
now to get an equation of a straight line use one of your points eg(1,2) and the gradient or rate of change mine was 0.4
HELP ASAP!!!!! 25 POINTS + BRAINLIEST!!!!
(if it is not a ligament answer, i will report)
Answer:
2 x 3(x + 4) + 2 x 7(x + 2) = 20x + 52
Step-by-step explanation:
2 x 3(x + 4) + 2 x 7(x + 2) = 6x + 24 + 14x + 28 = 20x + 52
Jamal performed an experiment flipping a coin. He did 10 trials and then his arm got tired. He recorded his results in the table. Based on the experimental probability, Jamal predicted that the number of times the coin lands heads up will always be greater than the number of times it lands tails up. What is the error in his prediction?
Answer:
The error in his prediction is that he had too small of a sample size for the data to be reliable in how the trend would continue.
Answer:
He did not perform enough trials to compare the theoretical and experimental probabilities.
Step-by-step explanation:
What is the solution to the system of equations graphed below???
Answer:
The solution is (-2,-2)
Step-by-step explanation:
This is the point where the two graphs intersect.
what is the slope pls help
Answer: 19,7
Step-by-step explanation:
If the designer measures the pond and determines that the length of the pond across is 400 feet wide, what is the length of the radius?
Answer:
200 ft
Step-by-step explanation:
I assume that 400 ft is the diameter, in which case the radius is 1/2 if the diameter. Therefore, 1/2 of 400 is 200.
Hope this helps!
which is greater 3.2×10¹⁰ or 4×10¹²
A bag contains 30 ping-pong balls, each with a different number written on it from 1 to 30. What is the probability of selecting a ball with a number that is less than 13?
Answer:
...
Step-by-step explanation:
Answer:
so you have a 40% chance or 2/5 chance
Step-by-step explanation:
30 numbers in total
12 are less than 13
so you have a 12/30
simplify
2/5 = 0.4 or 40%
