Answer:
sin theta= p/h
here, 40√3/x=x sin 60
40√3/x=x √3/2
40/x= x/2
x^2=80
=√80=4√5
A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts the first 10 people who respond to the advertisement. Which of the following statements is true about the sample? (5 points) It is not a valid sample because it is only a short study. It is a valid sample because money is offered to participants. It is a valid sample because the first 10 people were selected to participate. It is not a valid sample because it is not a random sample of the population.
Answer:
the third one
Step-by-step explanation:
do you need and explanation
Could someone please answer this question for me? (7x+1)+(−8x+2) This answer needs to be simplified. Thanks!
Answer:
-x + 3
Step-by-step explanation:
(7x+1)+(−8x+2)
7x + -8x + 1 + 2
-x + 3
PLEAS HELP ASAP SOLVE BOTH PROBLEMS IM GIVING 80 POINTS! NO SPAM
answer format: just say a, b, c, or d for both questions; no explanation needed.
question 1:Which of the following is a pair of equivalent radical expressions?
A. √45 and 3√15
B. √75 and 3√5
C. √54 and 9√6
D. √180 and 3√20
Question 2: image attached.
Answer:
C
Step-by-step explanation:
Answer: C for the first one and B for the second one
Step-by-step explanation:
hope it helps you
What value of y will make the equation true? The square root of 34 times the square root of y = 34
(4 × 10 –10)(3 × 104)
Answer: 9360
Step-by-step explanation:
1) 10 (4 - 1) x ( 3 x 104 )
2) 10 (4-1) x 312
3) 10x3x312
=9360
Hope this helps!
A line that includes the point (1, 10) has a slope of 6. What is its equation in slope-intercept
form?
Answer:
y = 6x + 4Step-by-step explanation:
The point-slope form of the equation that describes the line with a slope of m and including the point (x₀, y₀) is: y - y₀ = m(x - x₀)
m = 6
(1, 10) ⇒ x₀ = 1, y₀ = 10
Therefore:
y - 10 = 6(x - 1) ← the point-slope form
y - 10 = 6x - 6 {add 10 to both sides}
y = 6x + 4 ← the slope-intercept form
What is the probability of rolling an even number on the first roll of a number cube and rolling an odd number on the second roll?
Answer:
1/4.
Step-by-step explanation:
There are 3 even numbers in the 6 numbers on a cube.
So Probability first roll is even = 3/6 = 1/2.
By the same reason Probability of odd number = 1/2.
So: Probability(First is even and second is odd) = 1/2 * 1/2 = 1/4.
help pleaseeee. this makes no sense
9514 1404 393
Answer:
x = 3.6
Step-by-step explanation:
It can be helpful to write down corresponding sides and their measures.
AB = 5, PQ = 6
BC = 3, QR = x
CD = 2, RS = 2.4
DA = 4, SP = 4.8
Then you can look for easy ways to find x. You can tell from this table that all of the values in PQRS are 6/5 = 1.2 times the corresponding values in ABCD.
Then ...
QR = 1.2×BC = 1.2×3
QR = x = 3.6
_____
Other ways you can figure x are ...
x/BC = PQ/AB
x = (BC)(PQ/AB) = 3(6/5) = 3.6 . . . . the method we used
__
x/RS = BC/CD
x = 2.4(3/2) = 3.6
__
x/SP = BC/DA
x = 4.8(3/4) = 3.6
Explain the algebra 5a - 9a - (-2a) =
Hello!
5a - 9a - (-2a) =
= 5a - 9a + 2a =
= -4a + 2a =
= -2a
Good luck! :)
Find the difference.-3.2 - (-4) *
1 point
7.2
-7.2
0.8
-0.8
Answer:
do you like harry styles
Step-by-step explanation:
pog champ
Kiran has $100 saved in a bank account. (The account doesn’t earn interest.) He asked Clare to help him figure out how much he could take out each month if he needs to have at least $25 in the account a year from now.
He could take out $6.25 for each month and at the end $25 also left in his account.
What is an expression?Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both. Adding, subtraction, multiplying, and division are all reflection coefficient operations. A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.
As per the data given in the question,
The total amount Kiran is having in the bank = $100
He needs to have at least $25 in the account at the end of the year.
So, the money he can spend in a year = $100 - $25 = $75
1 year = 12 months
So, the amount of money spent per month will be,
75/12 = $6.25
To know more about expression:
https://brainly.com/question/14083225
#SPJ2
HELP ME PLEASE!! I DON’T KNOW WHAT I’M DOING
41u+6
Sorry I don't really know anything about this subject.
Tom drives 200 miles in 4 hours.
He drives the first 32 miles at an average speed of 64 mph
Work out his average speed for the rest of the journey, in mph.
Please help??
His average speed for the rest of the journey was of 48mph.
someone pls pls pls answer these questions by finding the area!!!!!!!
Answer:
8 is the diamonds area im not sure if there is a formula for that but its 8
Second shape you could connect the dots to make it more easier to get 15
Third shape is 16 for the area.
What is the solution to the equation 9(x − 2) = 27? (1 point) x = 2.5 x = 0.5 x = −0.5 x = 3.5
Answer:
x = 5
Step-by-step explanation:
9(x - 2) = 27
9x - 18 = 27
+18 +18
9x = 45
/9 /9
x = 5
Select the correct answer. One factor of the polynomial 2x^3–3 x^2 - 3x + 2 is (x- 2), which expression represents the other factor, or factors, of the polynomial?
Answer:
D
Step-by-step explanation:
The factorisation of polynomial is (2x-1)(x+1). Therefore, option C is the correct answer.
The given expressions are 2x³-3x²-3x+2 and x-2.
What are factors of polynomial?The factors are the polynomials which are multiplied to produce the original polynomial.
Here, the given polynomial can be factored as follows:
x-2 |2x³-3x²-3x+2| 2x²+x-1
2x³-4x²
(-) (+)
___________
x²-3x+2
x²-2x
(-) (+)
___________
-x+2
-x+2
(-) (+)
____________
0
2x²+x-1 can be rewritten as 2x²+2x-x-1
= 2x(x+1)-(x+1)
= (x+1)(2x-1)
The factorisation of polynomial is (2x-1)(x+1). Therefore, option C is the correct answer.
To learn more about the factorisation of polynomial visit:
https://brainly.com/question/16789195.
#SPJ5
Penelope is going to invest $23,000 and leave it in an account for 11 years. Assuming
the interest is compounded continuously, what interest rate, to the nearest tenth of a
percent, would be required in order for Penelope to end up with $41,000?
Answer: r ≈ 5.3%
Step-by-step explanation:
Question 1)
What is the rate of change of the linear relationship modeled in the table
Answer:
No
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
sorry
On subtracting 8 from -4, we get
Answer:
12
Step-by-step explanation:
Remember, when you add two same symbols, the outcome will be positive.
- + - = +
- + + = -
+ - + = +
+ - - = -
Part B: What can be said of an individual with a body temperature of
98.4°F? Justify your answer.
I need help ASAP
Help pls I need it now
Answer:
a). 4 + 9x + 17 + 15x
b) 21 + 24x
Step-by-step explanation:
Here, we want to write expressions for the perimeter
Mathematically, this is the sum of the length of the sides
We have this as
a)
4 + 9x + 17 + 15x
b) = 4 + 17 + 9x + 15x = 21 + 24x
Identify the vertex for the graph of y = -2x2 - 12x +1. (1 point)
O (-3, 19)
0 (-3,55)
(3, -53)
(3, -47)
Answer:
(-3, 19)
Step-by-step explanation:
The price of a gallon of unleaded gas was 2.84 yesterday. Today, the price rose to 2.90 . Find the percentage increase. Round your answer to the nearest tenth of a percent.
please help! Simplify the polonomial!
Answer:
Step-by-step explanation:
(2[tex]x^{2}[/tex]+3)(x+4)
2[tex]x^{3}[/tex]+8[tex]x^{2}[/tex]+3x+12
pay ITS TIVE
3. Bonolo ran a 10 km race. Her average speed was 6 km per
hour. How long did it take her in minutes to complete the race?
working days. .
Answer:
km per min
Step-by-step explanation:
6km ÷ 60 = 0.1
Bonolo ran 0.1 km per min
it takes 100 mins= 0.1×10
100 mins means 1 hour 40 min
Round to 1 SF
0.00628
Answer:
0.006
Step-by-step explanation:
0.00628, has 3 significant digits. Rounding this number to 1 significant digit gives us 0.006
Hoodmemes~
As shown in the diagram below, the radius of a cone is 2.5 cm and its slant height is 6.5 cm
Answer:
multiple but if that dont work ion know what to tell you
please solve!! 2(x+1)=x-7
Answer: Solution
=
−
9
Step-by-step explanation:
Answer:
answer is x = -9
Step-by-step explanation:
2x+2=x-7
x= -9
The ratio of boys to girls at the valley high school is 3:2. The school has 900 students. How many boys are at the school?
Answer:
let the no. of boys be 3x and girls be 2x
And according to the question
2x+3x is equal to 900
Step-by-step explanation:
and solve this equation...
hope this helps..
statistics is a numerical value summarizing the sample date
true or false