Answer:
[tex]m=\frac{7}{3}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (0, 7)
Point (-3, 0)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]m=\frac{0-7}{-3-0}[/tex]Subtract: [tex]m=\frac{-7}{-3}[/tex]Simplify: [tex]m=\frac{7}{3}[/tex]sin^2(a+b)-sin^2(a-b)=sin(2a)sin(2b)
Answer:
Step-by-step explanation:
To prove sin(a+b)*sin(a-b)=cos^2b-cos^2a
we simplify the left side sin(a+b)*sin(a-b) first
sin(a+b) = sin a cos b + cos a sin b
sin(a-b) = sin a cos b - cos a sin b
sin(a+b)*sin(a-b) = (sin a cos b + cos a sin b) x (sin a cos b -cos a sin b)
sin a cos b((sin a cos b + cos a sin b) - cos a sin b (sin a cos b + cos a sin b)
open the bracket
sin a cos b(sin a cos b) + sin a cos b(cos a sin b) -cos a sin b (sin a cos b)+ cos a sin b ( cos a sin b)
sin²a cos²b + sin a cos b cos a sin b - cos a sin b sin a cos b + cos²a sin²b
sin²a cos²b + 0 + cos²a sin²b
sin²a cos²b + cos²a sin²b
sin²a = 1-cos² a
sin²b = 1-cos² b
(1-cos² a)cos² b - cos² a(1-cos² b)
= cos² b - cos² a cos² b - cos² a +cos² a cos² b
choose like terms
cos² b - cos² a - cos² a cos² b + cos² a cos² b = cos² b - cos² a + 0
cos² b - cos² a
left hand side equals right hand side
From a population of 200,000,000 elements, the standard deviation is known to be 14. A sample of 49 elements is selected. It is determined that the sample mean is 56. The standard error of the mean is
Answer:
The standard error of the mean = 2
Step-by-step explanation:
Given that:
The standard deviation σ = 14
The sample size n = 49
The sample mean [tex]\overline x[/tex] = 56
The formula for calculating the standard error can be expressed as:
[tex]S.E = \dfrac{\sigma}{\sqrt{n}}[/tex]
[tex]S.E = \dfrac{14}{\sqrt{49}}[/tex]
[tex]S.E = \dfrac{14}{7}[/tex]
S.E = 2
Therefore, the standard error of the mean = 2
69 x 206
anyone wanna ch.at?
Answer:
14,214
Step-by-step explanation:
no
hope it helps!
Answer:sure y not?
Step-by-step explanation:
Find the measures of center for following. Data Frequency 30 - 34 1 35 - 39 0 40 - 44 3 45 - 49 7 50 - 54 5 55 - 59 10 60 - 64 10 65 - 69 21 70 - 74 12 mode
Answer: the mode is 67.2
Step-by-step explanation:
Given that;
Data Frequency
30 - 34 1
35 - 39 0
40 - 44 3
45 - 49 7
50 - 54 5
55 - 59 10
60 - 64 10
65 - 69 21
70 - 74 12
Mode = ?
we know that mode is the number that has the highest number of appearance of frequency, so in this case, the data group that has the highest frequency (21) is 65 - 69
Lower class boundary of the modal group; L = 65
Frequency of the group before the modal group; Fm-1 = 10
Frequency of the modal group; Fm = 21
Frequency of the group after the modal group; Fm+1 = 12
Group width; G = 4
Now using the formula
Mode = L + [ (Fm - Fm-1) / ( (Fm - Fm-1) + (Fm - Fm+1) ) ] × W
so we substitute
Mode = 65 + [ (21 - 10) / ( (21 - 10) + (21 - 12) ) ] × 4
= 65 + [ 11 / 20] × 4
= 65 + 2.2
= 67.2
Therefore the mode is 67.2
Emoya bought a dress for $180 and she recieves a discount of 10%. the amount of discount she recieves is ?
Answer:
18 Dollars
Step-by-step explanation:
180 X .10 = 18 dollars of discount
180-18= 162 is the total of what she paid for the dress
I hope this helped you
what is 0.246 divide by 6
Answer:
I believe answer is 0.041
Answer:
The answer is 0.041Step-by-step explanation:
I hope it helps ❤❤❤If you start with a board that is 2 3/8" wide and you trim off (cut off) 1 1/4", how wide will your board be?
Answer:
1 1/8"
Step-by-step explanation:
First, make a common denominator.
1 1/4 = 5/4 * 2/2 = 10/8 = 1 2/8
2 3/8 and 1 2/8
Then, subtract.
2 - 1 = 1
3/8 - 2/8 = 1/8
1 1/8"
11. What is diction? *
Answer:
Step-by-step explanation:
the choice and use of words and phrases in speech or writing.
8 minus the sum of 5 and 43 divided by 8
[tex]\huge\star\underbrace{\mathtt\red{«♠A} \mathtt\green{n♣ }\mathtt\blue{ §} \mathtt\purple{w}\mathtt\orange{£} \mathtt\pink{r♪»}}\star\:[/tex]
8 - (5+43) /8
=> 8 - 48/8
=> 8 - 6
=> 2
Step-by-step explanation:
Hope it helps you tho...!!!!!!!!!!!!!!!!!
need the answer pleas thx1
Answer:
n = 1.42857
Step-by-step explanation:
if a2 is -140 then somewhere between is -100. 3/7 is equal to 0.42857142857 in which it is 3/7 from -70 to -140 in a number range of 1 to 2. 1.42857142857 is your best bet as your answer.
What does -4(3x-7) =
Answer:
-12x+28
Tell me if u need an explanation!
Hope this Helps!!!
What is [(5387x29) + (3255x73)]
Divide 5 liters in the ratio 11:5:9. Give your answer in milliters.
Answer: we have 2,200milliters, 1000milliters, 1800milliters.
Step-by-step explanation:
Step 1
1 Liter= 1000 millilitres
5 liters = 5000 millilitres
Step 2
Dividing 5000 ml in the ratio 11:5:9
First, we find the Total ratio = 11+5+9 = 25
Such that
First part = 11/25 x 5000 = 2,200milliters.
Second Part = 5/25 x 5000=1000milliters.
Third part =9/25 x 5000=1,800milliters.
2h - (6h - 5 ) = -1
Answer:
1.5
Step-by-step explanation:
2h-(6h-5)=-1
2h-6h+5=-1
-4h+5=-1
-4h=-1-5
-4h=-6
h=-6/-4
h=6/4
h=3/2 or 1.5
Answer:
exact form: 3/2
decimal form: h= 1.5
mixed number form: h= 1 1/2
Solve 4x + 3y = 2 for y.
Question 5 options:
A)
y = 4x – 2
B)
y = –4∕3x + 2∕3
C)
y = 4∕3x – 2∕3
D)
y = –4x + 2
Solve 5(2x – 3) = x – 15 + 9x for x.
Question 14 options:
A)
0
B)
Infinitely many solutions
C)
–18∕5
D)
–12∕5
Solve 5(2x – 3) = 5x – 10 for x.
Question 16 options:
A)
– 1
B)
1
C)
0
D)
2
Solve |5x – 1| = |2x + 5|
Question 18 options:
A)
x = 2 or x = –4∕7
B)
x = 1∕2
C)
No solutions
D)
x = –1∕2 or x = –7
Solve |7h + 1| = |3h – 7| for h.
Question 19 options:
A)
–2 or 2
B)
–2 or 3∕5
C)
2 or –3∕5
D)
–3∕2 or 3∕5
Answer:
2. A
4. D
Step-by-step explanation:
it might be right dont know good luck-_-||
please help please asap
Answer:
[tex]9\frac{3}{4} , 9.5 , 9 \frac{3}{8} , 9.175[/tex]
Step-by-step explanation:
Carlos bought the items shown in the
table. What was the total cost, not including tax?
the fact that there is no chart makes it hard
Step-by-step explanation:
What is √192 expressed in simplest radical form?
Answer:
a
Step-by-step explanation:
the answer is a
√192=13.85.....
8√3= 13.85
answer is a
Please help me I need help
Answer:non
Step-by-step explanation:
Answer:
It's nonproportional
Nobody wants to answer my questions for brainliest
Do the boyz got me do?
25(x+5\4)^2-16(x7\4)^2 factorize the expression
Since both terms are perfect squares, factor using the difference of squares formula,
a² − b² = (a + b) (a − b) where a = 5(x + 5/4) and b = 4 (x (7/4) ).
− (12x + 25/4) (2x + −25/4)
12h = 132
h=
i need to know how to do that ^
Answer:
h=11
Step-by-step explanation:
divide:
132/12h
11h
Answer:
11
Step-by-step explanation:
You divide each side by 12 in order to isolate the h
So: 12h = 132
____ _____
12 12
h = 11
In the context of sampling plan, a comprehensive record of each individual in the population of interest is known as a ________.
Answer:
The correct answer is Census
Step-by-step explanation:
According to the given scenario, the record for each and every individual with respect to the population who has the interest is known as the census. The census means the information received for each and every population member
Therefore as per the given situation, the term that should be used is census
what is the averageof 02.15 + 03.25 + 04.23 + 05.01 = 14.64? so what is the average of 14.64 basically.
Answer:
3.66
Step-by-step explanation:
You have four numbers which sum equals 14.64. Now you divide 14.64 by 4 to get 3.66, or the mean/average
I,l give thanks and brainliest to whoever answers correctly ^_^
Answer:
[tex]\frac{20}{63}[/tex]
Step-by-step explanation:
The lengh times width results in 63, 20 of the 63 squares are shaded.
I WILL GIVE BRAINLIEST!!!!!!!! ASAP
Answer:
no se ve bien no puedes subirla en foto?
Step-by-step explanation:
lost is to woods as what is to sea
Use the diagram to find the value of a. The parallel lines
are marked.
62
45
73
106
Answer:
62
Step-by-step explanation:
Notice that angles <a and that labeled 62 degrees are corresponding angles between parallel lines, and therefore, must be congruent.
Therefore:
<a = 62 degrees.
PLEASE HELP ME! I’m begging you please
Answer:
1. 456.75 4567.5
2. 0.98 0.098
3. 2.4
4. 12,300
5. 809.200
6. 0.13
7. 42,608
8. 18
9. 280
10. 23
11. 950
12. 0.26
13. 9,500
14. 6.4
15. 280 3.06 0.2
16. 0.086 8,620 3.624
if a = 3, solve the expression 3a + 6 +5a.
Answer:
3a+6+5a
3×3+6+5×3
9+6+15
15+15
30
Hey there!
3a + 6 + 5a
= 3(3) + 6 + 5(3)
= 9 + 6 + 15
= 15 + 15
= 30
Therefore, your answer is: 30
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)