Answer:
The symbol 'n,' represents the total number of individuals or observations in the sample.
Answer:
The principal quantum number, n, describes the energy of an electron and the most probable distance of the electron from the nucleus. In other words, it refers to the size of the orbital and the energy level an electron is placed in. The number of subshells, or l, describes the shape of the orbital.
Which statements are true? Check all that apply. Negative 2.5 = negative 2 and one-half –1.5 > –0.5 –0.5 < 0 –2.5 < –2 1 and one-half greater-than 1.5
Answer:
a) Negative 2.5 = negative 2 and one-half
Step-by-step explanation:
Which statements are true? Check all that apply.
Comparing the given options
a) Negative 2.5 = negative 2 and one- half
This is correct
b) –1.5 > –0.5
This is wrong
-0.5> -1.5
c) –0.5 < 0 –2.5 < –2
-0.5 < -2.5
This is wrong.
d) 1 and one-half greater-than 1.5
This is wrong
Therefore, only option a is Correct
Answer: The answer is A C D
Step-by-step explanation: I took the quiz
Have a great day and a goo spring break!!!!!
4x + 5y = 22
7x - 3y = -32
Answer:
x = -2
y = 6
Step-by-step explanation:
i multiplied the 1st equation by 3 and the 2nd by 5 to get the y-terms to zero out
12x + 15y = 66
+ 35x - 15y = -160
47x = -94
x = -94/47
x = -2
substitute -2 for 'x' to solve for 'y':
4(-2) + 5y = 22
-8 + 5y = 22
5y = 30
y = 6
9) 8.081 +
+ 0.6 = 10.201
10)
- 3.328 = 0.96
Plot the following points on the coordinate plane. Connect them, and find the area of the shape that results.
(3,2) (-6,2) (-6,-8) (3,-8)
Answer:
The shape is a square and it's area is 121
HOPE THIS HELPS!!!
Solve for x: 3(x + 5) + x =7
Answer:
x=-2
Step-by-step explanation:
Answer:
x = -2
Step-by-step explanation:
We predicted it was going to rain 2 inches, but it actually rained 10 inches. What is our percent error?
Answer:
You were off by 80%
Step-by-step explanation:
Sarah would like to build a garden this year. Sarah measured out the outside of her proposed garden and would like to know how many square feet of space she will have to use. Calculate the area of her garden from the picture below.
please show your work/how you got your answer :)
Answer: 439,824 ft
Step-by-step explanation: the | means it is equal to so there is one on 7ft so the one without a number will be 7ft
Area is LxW
so 7x6x8x11x17x7=439,824
not sure if it’s correct tho but i guess I helped
7X+6-2x+3=
please help
7 X + 6 − 2 x + 3 = 7X−2x+9
Given right triangle ABC with altitude BD is drawn to hypotenuse AC. If AB=5 and AD=1, what is the length of AC ? (Note: the figure is not drawn to scale.)
Answer:
x = 24.99 or 25
Step-by-step explanation:
Using sin to figure out the angle of ABD, we can figure out the angle of CBD by subtracting it from 90°.
sin y = (1/5)
y = 11.54°
90 - 11.54 = 78.46°
Now using Pythagorean Theorem (a²+b²=c²) we can solve for line BD.
1² + b² = 5²
1 + b² = 25
b² = 24
b = √24
Now we can use tan to figure out the length of segment DC.
tan(78.46) = z/√24
z = 23.99
We can now combine the known length of segment AD and the length of DC to get x.
1 + 23.99 = 24.99 or about 25.
if a scale drawing is 0.75 inches and the original drawing is 1.25 inches what is the scale factor
Answer:
The scale factor is = 0.75 ÷ 1.25 =
[tex] \frac{3}{5} = 0.6.[/tex] i.e. 3:5//
The sum of 4 consecutive integers
is 354
Consecutive integers are numbers in a row on a number line (ie. 4,5,6 or 457,458,459 or 12341, 12342, 12343). They can also be negative as long as the problem doesn't specify if it's positive.
x= first integer
x+1= second integer
x+2= third integer
x+3= fourth integer
Add the four integers equal to 354.
x + (x+1) + (x+2) + (x+3)= 354
combine like terms
4x + 6= 354
subtract 6 from both sides
4x= 348
divide both sides by 4
x= 87 first integer
THREE REMAINING INTEGERS
x+1= 87 + 1= 88 second integer
x+2= 87 + 2= 89 third integer
x+3= 87 + 3= 90 fourth integer
ANSWER: The four consecutive integers are 87, 88, 89 and 90.
Hope this helps! :)
Please mark me as brainliest.
Answer:
Step-by-step explanation:
5. After t seconds, a ball tossed in the air from the ground level reaches a height
of h feet given by the function h(t) = 144t – 16t^2. PART A: What is the height of
the ball after 3 seconds? PART B: After how many seconds will the ball hit the
ground before rebound? -
Answer:
a = 288 feet, b = 9 seconds
Step-by-step explanation:
t = 3, solve for h(t)
h(3) = 144(3)-16(3)^2
=432-144
=288
H(t) = 0, solve for t
0=144(t)-16(t)^2
t = 0, t =9
.5+y-5÷34+3×7 -6 =45
Answer:
y=2205
Step-by-step explanation:
5+y-5/34+3*7-6=45
combine terms on each side
y/49=45
multiply 49 on each side
y=2205
i hope this helps you
Answer:
y=855/34 or 25 5/34
Step-by-step explanation:
Rewrite
5+y-5/34+3x7-6=45
Calculate Sum or differnce
5+y-5/34+21-6=45
Caculate difference
20+y-5/34=45
Move constant to the right
675/34+y=45
Caculate Difference
y=45-675/34
y=855/34 or you could put 25 5/34
Figure STUV will be translated 2 units to the right and 4 units up to form S'T'U'V'. Which ordered pair best represents point U'?
A.(3,5)
B.(6,2)
C.(-1,6)
D.(2,2)
Answer:
(6,2)
Step-by-step explanation:
U is at (4, -2)
shifting to the right and up means that you will add 2 to x and 4 to y
(6,2)
the actual length of a in the triangle shown is 10cm. Use the scale drawing of the triangle to find the actual length of side b
A o.18 cm
B 12.5cm
C16cm
D48.5cm
Answer:
12.5 or B
Step-by-step explanation:
A metalworker has a metal alloy that is 25% copper and another alloy that is 70% copper. How many kilograms of each alloy should the metalworker combine to create 100 kg of a 61% copper alloy?
Answer:
The metal worker should use 10 kgs of 25% copper alloy and 40kgs of 70% copper alloy to make it
Step-by-step explanation:
Answer:
The metalworker should use 10 kgs of 25% copper and 40 kgs of 70% alloy to make it.
y= 2? + 16x + 64
1. Identify a, b, and c
b=
C=
ask a tutor for help with that my dude I don't know sorry
I can’t do this plz help
PLEASE ANSWER ASAP !!!!!
Answer:
2/1=2
Step-by-step explanation:
slope=change in y/change in x. 1 to 3 is 2, 7 to 8 is one, so 2/1 or 2
Answer:
Slope is 2
Step-by-step explanation:
From your conclusions in part E, how many triangles can be constructed based on the given conditions?
What are the given conditions?
6(1-5m) =
3(4+3r) =
3(6r+8)
4(811+ 1+2) =
-(-2-n) 7) =
-6(7k+11) =
-3(71+1) =
-6(1 +116) =
-10(a - 5) =
-3(1 + 2v) =
-4(3.r+2)=
(3 - 76).-2 =
-2018.x+20) =
(7 + 190). -15 =
(x + 1). 14=
Answer:
6(1-5m) = 6 − 30 m
3(4+3r) = 12 + 9 r
3(6r+8) = 18 r + 24
4(811+ 1+2) = 3256
-(-2-n) 7) = 14 + 7 n
-6(7k+11) = − 42 k − 66
-3(71+1) = − 216
-6(1 +116) = − 702
-10(a - 5) = − 10 a + 50
-3(1 + 2v) = − 3 − 6 v
-4(3r+2) = − 12 r − 8
(3 - 76)-2 = − 75
(-2018x+20) = − 2018 x + 20
(7 + 190)-15 = 182
(x + 1)14 = 14 x + 14
Three angles are complementary. One angle is double the smallest angle. The largest angle is
triple the smallest angle. Find the measures of
the three angles.
Answer:
Step-by-step explanation:
A+B+C = 90°
A ≤ B ≤ C
C = 3A
B = 2A
A+B+C = A + 2A + 3A = 6A = 90°
A = 15°
B = 2A = 30°
C = 3A = 45°
Can you please help me its really easy!!
Answer:
400 + 157.08 = 557.08??
Step-by-step explanation:
Two rovers are exploring a planet. The system of equations below shows each rovers elevation y at time x.
The polynomial 2x³ + qx² + rx + 2 has a
factor (x - 1) and leaves a remainder of
12 when divided by (x - 2). Find the
constants q and r and hence the other
factors of the polynomial.
Answer:
q = 1 , r = -5
other factors of polynomial:
(2x - 1) & (x + 2)
Step-by-step explanation:
In the first part, substitute x = 1 make it equal to 0.
Substitute x = 2 and make it equal to 12.
Rearrange both, until you have two linear equations.
Solve the set of simultaneous equation to find q and r .
Second part place the value of q and r to have the full polynomial.
Carry out long division, dividing the polynomial by the factor that's stated in the question (x - 1) and you will have a quadratic equation.
Factorise the quadratic equation to have the two other factors of the polynomial.
Hope this helps:))
a) A)-(-8)-(-9)
b) 9+(-6)+(7)
c) -2-3-5
d) 10-(-7)-(-8)
e) -(3)+(-8)+(1)
f) (-4)-(-6)+(-5)
por favor me urgen
Answer: what is the question
Step-by-step explanation:
what is the value of x , where
2x + 1 = 99
Answer:
x=49
Step-by-step explanation:
2x+1=99
2x=98
x=49
Answer:
To find the value of x we need to solve this equation
2x + 1 = 99
now ,taking constant to right side
2x = 99 - 1
2x = 98
x = 98/2
x= 49
hope it will help ,sir
help me pls!!!! :c rip
Answer:
p^⁴/5
Step-by-step explanation:
Step-by-step explanation:
p^4/5. I just know the answer
drought can cause the level of the local water supply to drop by a few inches each
week. Suppose the level of the water supply drops 2 inches each week. How much will it
change in 4 weeks? ________
Answer:
8 inches
Step-by-step explanation:
2 times 4=8
Answer:
Step-by-step explanation:
4w(-2in)/w=-8in
Please answer for Brainliest.