Answer:
Step-by-step explanation:
t2 = a*r
t2 = 6
t5 = a*r^4
t5 = 162
162/6 = ar^4 / ar
r^3 = 27
r = 3
6 = a*3
2 = a
Sum = a(r^n - 1)
=======
r - 1
n = 5
a = 2
r = 3
Sum = 2(3^5 - 1)
=======
2
Sum = 242
53:24
Which statement about the function is true?
The graph of the function f(x) = -(x + 3)(x - 1) is
shown below.
The function is positive for all real values of x
where
x 1.1
6
27
O The function is negative for all real values of x
where
x <-3 and where x > 1
The function is positive for all real values of x
where
x > 0
The function is negative for all real values of x
where
X<-3 or x>-1
-6
4
2.
4
6
х
-2
-2
4
Mark this and return
Save and Exit
Next
Submit
Answer:
25
Step-by-step explanation:
A bowl contains only red marbles, blue marbles and green marbles. The probability of selecting a red marble from the bowl is 3/13. The probability of selecting a blue marble from the bowl is 2/5. There are fewer than 100 marbles in the bowl. What is the probability of selecting a green marble and then a red marble from the bowl on the first two selections, assuming marbles are not returned to the bowl after being pulled
====================================================
Explanation:
3/13 = 15/65 after multiplying top and bottom by 5
2/5 = 26/65 after multiplying top and bottom by 13
Let's say there are 65 marbles in the bowl. That would mean 15 of them are red (since 15/65 reduces to 3/13) and 26 are blue. That gives 15+26 = 41 so far. Leaving 65-41 = 24 marbles that must be green.
The probability of selecting a green marble is 24/65. Once that first green marble is taken out, it is not replaced. We have 65-1 = 64 marbles left, 15 of which are red. The probability of picking red on the second selection is 15/64.
Multiply the fractions mentioned:
(24/65)*(15/64)
(24*15)/(65*64)
360/4160
9/104
10a + 4 =
........................................
ARAT TIETE (Simplify): V125 - V45+ V5
Answer:
3[tex]\sqrt{5}[/tex]
Step-by-step explanation:
Using the rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]
Simplifying the radicals
[tex]\sqrt{125}[/tex]
= [tex]\sqrt{25(5)}[/tex]
= [tex]\sqrt{25}[/tex] × [tex]\sqrt{5}[/tex] = 5[tex]\sqrt{5}[/tex]
[tex]\sqrt{45}[/tex]
= [tex]\sqrt{9(5)}[/tex]
= [tex]\sqrt{9}[/tex] × [tex]\sqrt{5}[/tex] = 3[tex]\sqrt{5}[/tex]
Then
[tex]\sqrt{125}[/tex] - [tex]\sqrt{45}[/tex] + [tex]\sqrt{5}[/tex]
= 5[tex]\sqrt{5}[/tex] - 3[tex]\sqrt{5}[/tex] + [tex]\sqrt{5}[/tex] ← collect like terms
= 3[tex]\sqrt{5}[/tex]
what does c equal : c - 12 =-4
Answer:
c = 8
Step-by-step explanation:
c - 12 = -4
Add 12 on both sides
c = 12 + (-4)
c = 8
Help help help help pls
what does x - 9 multiplied by x + 4 equal
Answer:
x^2 - 5x -36
Step-by-step explanation:
multiply x-9 by x to get x^2 -9x. multiply x-9 by 4 to get 4x-36. add these two together to get x^2 - 9x + 4x - 36. simplify to get x^2 - 5x -36
Difference
between limiting value and functiona
value of function ? give
some eample
Answer:
The value of a function is the actual calculation done at a certain point. The limit is - roughly speaking - the value at points that are “arbitrarily close” to the same point. For most commonly used functions, the value of a function at a point, and the limit at the same point, is the same - at least for most values.
will mark brainliest for 2 possible answers (WITH NO LINKS AND ANSWERS WITHOUT EXPLANATION)
Answer:
Equation in cubed form is x^3+7x^2+7x-15
Step-by-step explanation:
Plz help brainiest to the correct answer!
[tex]\\ \sf{:}\dashrightarrow \dfrac{1}{4}(-12)=-3[/tex]
#b
[tex]\\ \sf{:}\dashrightarrow \dfrac{-1}{3}(39)=-13[/tex]
#c
[tex]\\ \sf{:}\dashrightarrow -4/5(-75)=-4(-15)=60[/tex]
#d
[tex]\\ \sf{:}\dashrightarrow (-2/5)(-3/4)=6/20=3/10[/tex]
#e
[tex]\\ \sf{:}\dashrightarrow 8/3(-42)=-14(8)=-112[/tex]
Nisha measures the temperature at 12 noon each day.
She records her results on a graph.
Playground Temperature in January
Temperature in degrees
Monday= 2
Tuesday= 6
Wednesday= -3
Thursday= -2
Friday= 1
Nisha says the difference between the coldest and warmest
temperature is 2°C.
Is she correct and why?
Answer:
no, because the highest temperature was 6 and the lowest was -2. that's an 8 degree difference
I need some help with this question, can anyone help me?
Answer: IM only in midle school i think this is it 7(3e + 5)
Step-by-step explanation: f it is brainliest whe someone answers pls ps you next question ready
Y varies directly as x if x=15 when y=20, find x when y=30
Answer:
X=22.5
Step-by-step explanation:
Y=kX
20=15k
k=4/3
For X when Y=30
30=4/3×X
Cross multiply
4X=90
X=22.5
HELP ME WITH THIS PLEASEEE !
Answer:
38.525 in²
Step-by-step explanation:
The area formula for a triangle is useful here.
A = 1/2bh . . . . . . b=base length; h=height
A = 1/2(11.5 in)(6.7 in) = 38.525 in²
The area is 38.525 square inches.
How many solutions does 9 - 5x = 8 - 3x - 1 -2x have?
A. One
B. Two
C. Infinite
D. Zero
Answer:
D) Zero solutions
Step-by-step explanation:
9 - 5x = 8 - 3x - 1 - 2x
9 - 5x = 7 - 5x
9 = 7
Zero solutions
i took the quiz its D. Zero
Whats 12 3/8 - 9 1/8
Answer:
3[tex]\frac{1}{4}[/tex]
Step-by-step explanation:
Answer:
13/4
Step-by-step explanation:1238−918
Convert 1238
to an improper fraction.
Tap for more steps...
998−918
Convert 918
to an improper fraction.
Tap for more steps...
998−738
Combine the numerators over the common denominator.
99−738
Subtract 73
from 99
.
268
Cancel the common factor of 26
and 8
.
Tap for more steps...
134
pls help i will give brainliest!!!!! :)
Answer: c.50 is the answer
Use your scientific calculator to calculate the value of the following:3.5934×4.294Give your answer in decimal form and write all the digits on your calculator display.
Answer:
15.4300596
Step-by-step explanation:
Write an expression for 5 times the difference of twice a number and 4
Answer:
1. 50-x
2. 2x+189
3. x+109
4. x+99
5. x*(76-39)
6. 75+x
7. 45-3x
8. 2x+15
9. 3x-25
10. x*(x+88)
Step-by-step explanation:
2x^2=3x+10 completing the square
Answer:
[tex] x_{1} = \frac{ - \sqrt{89 + 3} }{4} [/tex]
[tex] x_{2} = \frac{ \sqrt{89 + 3} }{4} [/tex]
Step-by-step explanation:
1) Move the variable to the left
2) Divide both sides
3) Add the same value to both sides
4) Add 9/16 to the expression
5) Add 9/16 to the right-hand side
6) Recalculate then solve
Q.
10! (Factorial)
note : Don't be bullied, I'm not beautiful:v
Answer:
The value of factorial of 10 is 3628800,
i.e. 10! = 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 3628800.
[tex]\large\huge\green{\sf{Answer:-}}[/tex]
[tex]10! \: = 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times\\ 3 \times 2 \times 1 =3628800 \\ [/tex]
The \: value of factorial of 10 is , i.e. 10!= 3628800Jamal bought a concert ticket online for $57. He used a coupon code to get a 40% discount. The website also applied a 20% processing fee to the price after the discount. How much was the processing fee? Round to the nearest cent.
Answer:
$41.04
Step-by-step explanation:
57-40%(22.8)=34.2
34.2+20%(6.84)=41.04
What is the y intercept and slope
(44+6x) / (16+x) ………
How many real solutions are there to the equation: x + y = 10
don't forget the explanation?
Answer:
An infinite amount
Step-by-step explanation:
The domain and range of the equation [tex]x+y=10[/tex] are both [tex](-\infty, \infty)[/tex] or all real numbers ([tex]\mathbb{R}[/tex]). This means the equation takes on any real value for [tex]x[/tex] and [tex]y[/tex]. Therefore, there are an infinite number of real solutions to the equation.
Conceptually this makes sense. For any number we plug in for [tex]x[/tex], we can change [tex]y[/tex] to make [tex]x+y=10[/tex] true. Since there are an infinite number of numbers, there are an infinite number of values we can plug in for [tex]x[/tex] and [tex]y[/tex].
Amy is traveling across the USA by train over the summer. She is keeping track of all of the stops on her trip. She has just completed stop 8 and the map shows she is 20% complete. How many total stops are on her trip?
Answer: 40
Step-by-step explanation: if 8 stops complete 20% of the map 100% is 5 times that so 8x5 is 40 so 40 stops in total
The total number of stops in her trip is 40.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
Amy has just completed stop 8 and the map shows she is 20% complete.
let the total number of stops be x
So, 20% of x = 8
20/100x= 8
1/5x = 8
x= 40
Hence, the total number of stops in her trip is 40.
Learn more about algebra here:
https://brainly.com/question/24875240
#SPJ2
can anyone help with this.pls
i will mark as brainliest answer if it is correct
need explanation
Answer:
He obtained 11.2 points
Step-by-step explanation:
He obtained 20 balls and was penalized 3 points.
If each red ball is 0.5 points off, then 3/0.5=6
6 of his obtained balls were red balls, penalizing 3 points.
So, 20-6=14
The rest of his 14 balls were green balls, each worth 0.8
So, 14 × 0.8 = 11.2
So he obtained a total of 11.2 points
If you can buy four bulbs of elephant garlic for $8 how many can you buy with $32?
Answer:
16
Step-by-step explanation:
16
Step-by-step explanation:
32 ÷ 8 = 4
4 × 4 = 16
[tex] \\ [/tex]
KemberlyJhelp please thanks.
Answer:
Answer below
Step-by-step explanation:
a. g(w)=$30+$15w
b. h(w)=$65+$20w
c. g(3)=125 represents that Darnell's account has $125 after 3 weeks
d. w=3.5
Solve for P 2(p-10)= 14
Hi,
2(p-10) = 14
2p - 20 = 14
2p - 20 + 20 = 14 + 20
2p = 34
2p/2 = 34/2
p = 17
✅(•‿•)