How do you step by step solve the equation n(n+2) = 0
Answer: n = 0 and -2
Step-by-step explanation:
Equate the expressions to zero
n(n+2) = 0
n = 0 and n+2 = 0
n = 0 and n = -2
Find the equation of the line that contains the points whose coordinates are (−2, 3) ( − 2 , 3 ) and has slope −2/3
Answer:
y = -2/3x + 5/3
Step-by-step explanation:
y = -2/3 x + b
3 = -2/3 (-2) + b
3 = 4/3 + b
5/3 = b
Hope this helps <3
(-1, -11) and (-6, -7) in simplified form please!
PLZ HELP I TRIED LIKE 20 TIMES AND GOT IT WRONG
Answer:
(5نغنفنفتغن6نغنص7
76ق3332
54ىكللعغص3تةوعخو
Please solve the equation shown in the image below
The value of angle <4 is 63 degrees
How to solve for angle <4?In a triangle, an exterior angle equals the sum of the opposite interior angles.
This means that:
<4 = 31 + 32
Evaluate the sum
<4 = 63
Hence, the value of <4 is 63 degrees
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fill in the table for brainliest!!!! ASAP
Answer:
-2 -7
0 -1
1 2
3 8
Step-by-step explanation:
how to change the number of decimal places on a ba ii plus
The BA II Plus calculator is a financial calculator manufactured by Texas Instruments (TI). It is widely used by students, professionals, and individuals in various fields such as finance, accounting, economics, and business.
To change the number of decimal places on a BA II Plus calculator, you can follow these:
1. Turn on the calculator by pressing the "ON" button.
2. Press the "2nd" button, which is located in the top left corner of the calculator.
3. Press the "FORMAT" button, which is located above the "0" button.
4. Use the arrow keys (up and down) to scroll through the different options until you see "DEC" (decimal places) on the display.
5. Press the "ENTER" button to select the "DEC" option.
6. Enter the desired number of decimal places using the number keys.
7. Press the "ENTER" button again to confirm the new setting.
The calculator should now display the specified number of decimal places for calculations and results. Keep in mind that changing the decimal places setting may affect all subsequent calculations until it is changed again.
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Use the inequality t - 1/3_>25/15 to answer the following questions. A) Solve the inequality for t. B) Plot the solution on the number line. C) Enter the solution in interval notation.
We are given : t-1/3 ≥ 25/15
take note that 25/15 is the same as 5 /3 ,
(A) So we can rewrite the above inequality as follows:
t - 1/3≥ 5/3
→ t ≥ 5/3 + 1/3
t ≥ 6/3
∴ t ≥ 2
(B) see the number line below :
(c) interval notation : [ 2;∞)
You work at a bike shop. A customer purchases 6 new bike tires at $6.99 each. If the customer gives you $40, how much is still owed, in cents?
1.50
194
270
505
699
Answer:
194 cents is the correct answer
Step-by-step explanation:
6.99 dollars is 41.94
Answer:
B: -1.94
Step-by-step explanation:
First, you would want to multiply 6 and 6.99
You should get 41.94.
Finally, subtract 41.94 with 40.00. (41.94-40.00).
You should get -1.94. The reason why we add a negative sign is because the total cost of the 6 bikes is more then what she payed with.
what is the definition of congruent
Answer:
more ... The same shape and size, but we are allowed to flip, slide or turn. In this example the shapes are congruent (you only need to flip one over and move it a little). Angles are congruent when they are the same size (in degrees or radians). Sides are congruent when they are the same length.
Step-by-step explanation:
happy to help ya:)
Answer:
Congruent means two or more objects that are the same. All angles and sides have to be the same length and measure.
Step-by-step explanation:
congruent means equal two
if a number is added to the numerator of (11)/(35) and twice the number is added to the denominator of (11)/(35), the resulting is equivalent to (1)/(3). find the number
For the statement to happen, the number should be 2.
An algebraic expression is is defined as the combination of numbers and variables in solving a particular mathematical question. Variable, usually letters, are used to denote the unknown quantity.
Let x = number
Based on the information given, add the number to the numerator of 11/35 and add twice the number to the denominator of 11/35, and the result should be equal to 1/3.
Hence, (11 + x) / (35 + 2x) = 1/3.
Simplify and solve for the value of x.
3(11 + x) = (35 + 2x)
33 + 3x = 35 + 2x
3x - 2x = 35 - 33
x = 2
number = 2
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I NEED HELP ASAP ABOUT TO FAIL
the study of the organization and collection of data is know as?
Answer:
investigation isanswer
For every 2 apples in Kali’s orchard, there are 4 pears. In Sam’s orchard, there are 10 pears for every 5 apples. If the number of pears is proportional to the number of apples, what is the constant of proportionality
Answer:
ggycv
Step-by-step explanation:
!!!PLEASE HELP I'LL GIVE BRAINLIEST AND 30 POINTS!!!
Given that events A and B are independent with P(A) = 0.25 and P(A and B) = 0.185, determine the value of P(B), rounding to the nearest thousandth, if necessary.
If two events are independent, then P(A and B) = P(A) x P(B).
In your situation, you need to solve 0.185 = 0.25 x P(B).
Can you take it from there?
someone plz help meee
Answer:
33d
Step-by-step explanation:
33 is the total fish in each tank
d represent the number of tanks
To find the total fish we multiple 33 and d
33 x d = total fish
so 33d is the correct expression
what happens to the sector area of a circle if you double its radius? what happens to the arc length of a circle if you double its radius? why do you think that happens?
The sector area of a circle is quadrupled when the radius is doubled. When the radius is doubled, the arc length of a circle is also doubled. This happens because the sector area and arc length are both dependent on the radius of a circle. Therefore, any change in the radius of a circle affects both its sector area and arc length.
Let us understand both these concepts in detail:
Sector area of a circle: A sector is a region of a circle, and the area enclosed by two radii and an arc is known as a sector area. The formula for the sector area of a circle is given by:
Sector Area = (θ/360)πr²
where θ is the central angle in degrees,
r is the radius of the circle,
and is a constant value.
If we double the radius of a circle, the sector area increases by a factor of 4. This is because the sector area is directly proportional to the square of the radius.
Hence, doubling the radius of a circle results in an increase in the sector area by a factor of 22 (four).
Arc length of a circle: The length of an arc is the distance between two points on a circle. The formula for the arc length of a circle is given:
Arc Length = (θ/360)2πr
where θ is the central angle in degrees,
r is the radius of the circle,
and 2pie is a constant value.
If we double the radius of a circle, the arc length also doubles.
This is because the arc length is directly proportional to the radius.
Hence, doubling the radius of a circle results in an increase in the arc length by a factor of 2.
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please help if you can, vv appreciated!!
Answer:
I believe 72
Step-by-step explanation:
150°, 130°, 130°, 150°, 140°, 140°, 150°, 130°, and d. What is d?
Answer:
130
Step-by-step explanation:
This most likely goes in a pattern
150
130
130
150
140
140
150
130
d (130)
e (150)
Answer:
130 degrees
Step-by-step explanation:
It's a pattern so first is 150 the 130 2x and then 150 again and now 140 2x. Starts over 150 again and 130 2x
solve the given initial-value problem. dy/dt 2(t+1)y2 = 0, y(0) = − 1/15 y(t) = 1/t^2 + 2t + 15Give the largest interval i on which the solution is defined. (enter your answer using interval notation.)
The largest interval on which the solution is defined is (-∞, -1) ∪ (-1, ∞). The interval notation for the largest interval is (-∞, -1) U (-1, ∞).
What is the initial-value problem?An initial-value problem is a type of boundary-value problem in mathematics, particularly in the field of differential equations.
The given initial-value problem is a separable differential equation, which can be written as:
dy/dt = -2(t + 1)y²
Integrating both sides, we get:
(1/y) = t² + 2t + C
where C is the constant of integration.
Since we have an initial condition, we can use it to find the value of C:
y(0) = -1/15
C = -1/15
Solving for C, we get:
C = -1/15
So, the solution to the differential equation is:
(1/y) = t² + 2t -1/15
y = 1 / (t² + 2t -1/15)
The solution is defined for all t ≠ -1, since y = 0 is not defined. So, the largest interval on which the solution is defined is (-∞, -1) ∪ (-1, ∞). The interval notation for the largest interval is (-∞, -1) U (-1, ∞).
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Find a vector equation and parametric equations for the line. (Use the parameter t.) The line through the point (0, 15, −9) and parallel to the line x = −1 + 4t, y = 6 − 2t, z = 3 + 9t. r(t) = . (x(t), y(t), z(t)) = .
A vector theory and descriptive coefficients for the line are provided by the statement: r(t) = 0,15,-9> +t4,-2,9>.
What is a class 12 vector?There are different quantities, which include direction and magnitude. If the quantity has both magnitude and direction, it is said to be a vector. These are referred to as vector quantities. Examples include displacement, speed, acceleration, energy, weight, impetus, and electric intensity. Consequently, the vector quantity is and the SI unit for it is m/s².
The given line is-
x = -1+4t, y = 6-2t, z = 3+9t
That is,
r(t) = <-1+4t, 6-2t, 3+9t> = < -1,6,3> +t<4, -2,9>
The line concurrent to the given line's direction vector is
u = <4,-2,9>
Equation for line going through point (x0,y0,z0) and has direction vector u is line passing through point (0,15,-9)
r(t) = < x0, y0,z0> +tu
That is
r(t) = <0,15, -9> +t<4,-2,9>
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What is the perimeter, in units, of polygon EFGHJK?
Answer:
38 units
Step-by-step explanation:
The sides of the polygon can be counted directly, as they are all straight
EF = 2
FG = 10
GH = 9
HJ = 8
JK = 7
KE = 2
perimeter is the sum of all sides
= 2 + 10 + 9 + 8 + 7 + 2
= 38 units
help me with this please
Answer:
XY=47
Step-by-step explanation:
1. Set up an equation for the perimeter of the rectangle. 2(5y-3)+2(4y)=174.
2. Simplify.
apply the Distributive Property. 2(5y-3)+2(4y)=10y-6+8ycombine like terms. 10y-6+8y=18y-63. Therefore, 18y-6=174.
4. +6 to both sides of the equation. the equation becomes 18y=180.
5. divide 18 to both sides of the equation. y=10.
6. the length of side XY=5y-3. substitute the value of y into the expression: 5(10)-3=50-3=47.
Which monomials are perfect squares? Select three options.
a
25x12
b
16x9
c
6x2
d
36x16
e
9x8
Answer:
a, d and e.
Step-by-step explanation:
A perfect square is one where the coefficient is a perfect square and the exponent is even.
So they are 25x^12, 36x^16 and 9x^8.
The lengths of the three sides of a triangle are x +3,2x, and 5x - 35. What is the value of x if the perimeter of the triangle is 112?
A.17
B.18
C.12
D.14
E.26
Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?
A. -7m - 8 = m - 4
B. -15m = -4m
C. -8 - 3m = 4 - m
D. -8 - 7m = -4 + m
E. m - 4 = -7m - 8
F. -3m - 8 = 4 - m
The mass of an object is x^15 grams. Its volume is x^9 cm^3. What is the object’s density?
Answer:
Step-by-step explanation:
density is mass divided by volume
15 divided by 9 is
1.6666666666
so its 1.666 repeating g/cm^3
SOMEONE PLEASE ANSWER THIS QUESTION!
Can someone help me out my grads are bad
Answer:
17 square units
Step-by-step explanation:
5 × 3 = 15 un²
15 un² + 1 un² + 1 un²
17 un²
\(\frac{1}{2}+ \frac{1}{10} =\frac{5}{10} +\frac{1}{10} =\frac{6}{10}\)
\(\frac{6}{10} =\frac{3}{5}\)
\(\frac{200}{9}: \frac{420}{y}\)
200 · y = 9 · 420
200y = 3780
200y ÷ 200 = 3780 ÷ 200
y = 18.9
18.9 gallons
the irreducible factorisation of 3a^3 + 6a is?
i) 3a(a^2 + 2)
ii) 3(a^3 + 2)
iii) a (3^2 + 6)
iv) 3 x a x a x a + 2 x 3 x a