Answer:-516
Step-by-step explanation:
Answers:
The simplified expression is -4x The value is -516===========================================
Explanation:
To simplify this, we combine the coefficients. This works because all of the terms have 'x' in them and nothing else (they are all like terms). We can think of this problem as trying to evaluate -12+14-6. This simplifies to -4
So -12x+14x-6x simplifies to -4x
Afterward, we replace x with 129 to get
-4x = -4*129 = -516
Subtract 3x^2+8x3x 2 +8x from -9x^2+3x-8−9x 2 +3x−8.
Answer:
x =(-8+√-32)/6=(-4+2i√ 2 )/3= -1.3333+0.9428i
Step-by-step explanation:
Find the average rate of change of f(x)=9x^2-2 on the interval of [1,t]
Answer:
[tex]Rate = 9(t+1)[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 9x^2 - 2[/tex]
[tex]Interval = [1,t][/tex]
Required
Determine the average rate of change
This is calculated using:
[tex]Rate = \frac{f(b) - f(a)}{b - a}[/tex]
Where
[tex][a,b] = [1,t][/tex]
So, we have:
[tex]Rate = \frac{f(t) - f(1)}{t - 1}[/tex]
Solve for f(t) and f(1)
[tex]f(t) = 9t^2 - 2[/tex]
[tex]f(1) = 9*1^2 - 2[/tex]
[tex]f(1) = 9 - 2[/tex]
[tex]f(1) = 7[/tex]
So, we have:
[tex]Rate = \frac{9t^2 - 2 - 7}{t - 1}[/tex]
[tex]Rate = \frac{9t^2 - 9}{t - 1}[/tex]
Factorize:
[tex]Rate = \frac{9(t^2 - 1)}{t - 1}[/tex]
Apply difference of two squares
[tex]Rate = \frac{9(t- 1)(t+1)}{t - 1}[/tex]
[tex]Rate = 9(t+1)[/tex]
pls this is due soon helopppp
8 divided by 1/12 plzzz thanks
Answer:
96
Step-by-step explanation:
8 divided by 1/12
8/1 divided by 1/12
8/1 x 12/1
96
Algebraic expressions can have a variable, operational symbols, and numbers?
true or flase
help please I need help very bad
Answer:
(8,2)
Step-by-step explanation:
the third option
Answer:
i guess (8,2)
Step-by-step explanation:
it's where both lines intercept
Help me out here ✏️ Mathematics
Answer:
it's definitely F .. Your welcome
Which rational number equals 0 point 2 with bar over 2
Greatest common factor 20x76 and 8x92
Answer:
dont know this one my apologies
26 divided by 1690 help please once again
Answer:
[tex]26 \div 1690 \\ = 0.0154[/tex]
help asap thank you!!
Answer:
c
Step-by-step explanation:
vshsbjzjskkzizjz shjskzoa
Answer: c
Step-by-step explanation:
4.
The probability that I will go sailing today AND the fair six-sided die will come up even on the next roll is .3.
these events are independent, what is the probability that I will go sailing today?
Answer:
Step-by-step explanation:
Let us consider P(A) to be the probability for the fact that I will go for sailing today
Likewise, P(B) will be the probability of a die to come up on an even number in the next roll.
Now, according to the question,
P(A and B) = 0.3
It is known to us that the probability of a die to land with an even number on its side up =
Moreover, we are given with the fact that both P(A) and P(B) are independent.
∴ P(A and B) = P(A) × P(B)
⇒ 0.3 = P(A) × 0.5
⇒ P(A) = = 0.6
help me please people
Can someone help me find the value of n? For this problem
Answer:
n = 129
Step-by-step explanation:
Reference angle = 60°
Hypotenuse = n
Adjacent side = 64.5
Apply CAH, which is:
Cos 60 = adj/hyp
Cos 60 = 64.5/n
Multiply both sides by n
n×Cos 60 = 64.5
Divide both sides by cos 60
n = 64.5/Cos 60
n = 64.5/0.5
n = 129
When a card is selected from a deck, find the probability of getting a. A club b. A face card or a heart c. A 6 and a spade d. A king e. A red card
Answer:
Kindly check explanation
Step-by-step explanation:
Number of clubs = 13
Number of face cards = 12
Number of hearts = 13
Number of King's = 4
Number of reds = 26
Number of spade = 13
Number of 6's = 4
Total possible outcomes = total number of cards = 52
Probability = required outcome / Total possible outcomes
1.) P(A club) = 13 / 52
2.) P(face card or heart) =
p(face card) + p(heart)
12 / 52 + 13/52
= (12 + 13) / 52 = 25 /52
3.)
(A 6 and a spade)
4/52 * 13/52
= 52 / 2704
= 1/52
4.) A king
P(king) = 4 /52 = 1/13
5) A red
P(red) = 26 / 52 = 1/2
please i’ve been stuck on this for days i need help
Answer:
x=12, y=9, z=7, w=3
Step-by-step explanation:
What is the product of 3.6 x 4.2
How did you find it.
Answer:
15.12
Step-by-step explanation:
3.6 x 4.2
first aline the decmials like you would regularly do to multiply.
Then multiply 2 x 6=12 and then 2 x 3=6 and put them down were you would already do noramly multiplying.
and then muliply 4x6=24 and 4x3=12 and do the same thing as you would do normaly and then add 72 and 144 to get 1512 and then count your decmail placing. which is 2 placeing in total which makes 1512 into 15.12
and now you done!
Example of how it should look...
3 . 6
× 4 . 2
+ 7 . 2
+ 1 4 4
= 1 5 1 2
Jim drove a total distance of 137,702.4 on a race track. He drove 16 laps, where each lap was the same length. What was the length of each lap? Write your answer in miles.
Answer:
8606.4 Miles
Step-by-step explanation:
Since we know that each lap was the same length, we can do 137,702.4/16 and get 8606.4
Answer:
8606.4
Step-by-step explanation:
A coffee shop sells 5 different types of cake and 6 different kind of drinks. Ruby wants to order a cake and a drink. How many different combinations of cake and drink could she choose?
Answer:
She could choose 30 different combinations of cake and drink
Step-by-step explanation:
A coffee shop sells 5 different types of cake and 6 different kind of drinks.
This means that:
For each type of cake, there are 6 different kind of drink.
At all, there are 5 different types of cake.
So
6*5 = 30
She could choose 30 different combinations of cake and drink
help pls i'll give brainliest, are they inverses or not explain why or why not
Answer:
no
Step-by-step explain why
because they have to be the same numbers
Grayson is going to invest $710 and leave it in an account for 17 years. Assuming the
interest is compounded continuously, what interest rate, to the nearest hundredth of
a percent, would be required in order for Grayson to end up
with $920?
Answer:
1.52%
Step-by-step explanation:
if 55% is 70.4 so what is hundred percent
Answer:
55%=70.4
1%=70.4/55= 1.28
100%=1.28into 100 = 128
What's the correct formula for this function?
Answer:
Option C. y = -2x + 3
Step-by-step explanation:
When we look at this function we see that it has a negative slope and the y-intercept is equal to (0,3). From this we know that the function we are looking for will be looking like...
y = mx + 3
And as I said earlier since the slope is negative, the only right option is this case will be Option C
Answer:
The correct anwer is (C) : y = - 2x + 3
Determine whether the ratios are equivalent 6 : 10 and 12 : 20 ?
Answer:
Yes, they are equivalent because 12 is divisible by 6 two times and 20 is divisible by ten two times.
Bert is planning to open a savings account that earns 1.6% simple interest yearly. He wants to earn exactly $224 in interest after 2 years. How much money should he deposit? Can someone help me out I’m kind of struggling
Answer:
$7000
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 1.6%/100 = 0.016 per year,
then, solving our equation
P = 224 / ( 0.016 × 2 ) = 7000
P = $ 7,000.00
The principal required to
accumulate interest of $ 224.00
on a rate of 1.6% per year for 2 years is $ 7,000.00.
Solve for x. + 9 = 30 x = 18 x = 24 x = 34 x = 44
Answer: 11 = x
Step-by-step explanation:
A person can pay $33 for a membership to the art museum and then go to the museum for
just $1 per visit. What is the maximum number of visits a member of the art museum can
make for a total cost of $42?
Ken ran 2.5 kilometers, 5,250 meters and 75,650 centimeters. how many total meters did Ken run?
Answer:
The answer is 2.77 km.
Step-by-step explanation:
help plz plz plz
Pentagon ABCDE is similar to pentagon RSTUV . The perimeter of pentagon ABCDE is 36.8 centimeters.
What is the length of ST ?
19.8 cm
18 cm
25.8 cm
15 cm
Answer:
ST = 15 cm
Step-by-step explanation:
find BC first by adding four other sides and subtracting from 36.8
sum of 4 sides is 30.8, so BC = 6
Now find ST by creating a proportion from corresponding sides:
BC / ST = DE / UV
6 / ST = 13.2 / 33
Cross-multiply:
13.2ST = 198
ST = 198/13.2
ST = 15
are they cute ? say yes it’s 100 points
Answer:
they all are super cute.
yes! thanks for free points.