Factor 9r2 – 36r – 45.
Answer:
9(r - 5)(r - 1)
Step-by-step explanation:
9r^2 - 36r - 45
First, factor out 9
9(r^2 - 4r - 5)
Then you can factor what's inside the parentheses
9(r - 5)(r -1 )
Ariana is going to invest in an account paying an interest rate of 1.9% compounded monthly. How much would Ariana need to invest, to the nearest ten dollars, for the value of the account to reach $110,000 in 14 years?
Answer:
110000=p(1+0.019)^168
23.62p=110000
p=4660
credit: sqdancefan
Answer:
84330
Step-by-step explanation:
The compound interest formula gives the value of an investment.
A = P(1 +r/n)^(nt)
where principal P is invested at annual rate r compounded n times per year for t years. Using your given values, we can solve for P.
110,000 = P(1 +0.019/12)^(12·14)
P = 110,000/(1 +0.019/12)^(12·14) ≈ 110,000/1.00158333...^168
P ≈ 110,000/1.30446
P ≈ 84326.04 ≈ 84,330 . . . . dollars
THERE'S TOO MUCH CATFISHES ON THIS SITE
Answer:
what do you mean by that?
Step-by-step explanation:
Which one is a better buy A. a bag of 6 oranges for $5.88 or a bag of 10 oranges for $9.20 Show and explain why.
Answer:
a bag of 10 oranges for $9.20
Step-by-step explanation:
5.88 divided by 6= 0.98 and 9.20 divided by 10=0.92 so $0.92 per orange is cheaper than $0.98 per orange.
what is 4/6 + 4/8 with unlike denominators
Answer:
7/6 or 1.17
Step-by-step explanation:
i made them have a common denominator of 24 and simplified.
hope this is right and helps! :)
BRAINLIEST ANSWER! PLEASE HELP!
-2x-10x+12=18
PLEASE EXPLAIN HOW YOU GOT THE ANSWER
Answer:
x = - 0.5
Step-by-step explanation:
you have to simplify the equation so
[tex] - 2x - 10x + 12 = 18 \\ - 12x + 12 = 18 \\ - 12x = 18 - 12 \\ - 12x = 6 \\ x = \frac{6}{ - 12} \\ x = - 0.5[/tex]
Answer:
X= -1/2 Hope this helps <3
Step-by-step explanation:
Let's solve your equation step-by-step.
−2x−10x+12=18
Step 1: Simplify both sides of the equation.
−2x−10x+12=18
−2x+−10x+12=18
(−2x+−10x)+(12)=18(Combine Like Terms)
−12x+12=18
−12x+12=18
Step 2: Subtract 12 from both sides.
−12x+12−12=18−12
−12x=6
Step 3: Divide both sides by -12.
David made a scale model of the Sam Houston Statue. The statue has an actual height of 67 feet. David's model used a scale in which 1 inch represents 10 feet. What is the height in inches of David's model?
Answer:
6.7 inches
Step-by-step explanation:
the statue is 67 feet tall, and in the replica, every inch is 10 feet. All you would need to do is move the decimal point to the left by one point.
What is the image point of (0, - 7) after a translation right 3 units and up 4 units?
Answer:
Hi there
Your answer is
( 3,8 )
Step-by-step explanation:
3 units right means to add 3
4 units up means to add 4
(0+3, 4+4)
Answer:
(3,-3)
Step-by-step explanation:
you first add 3 to zero as your are going right on the x scale. then you subtract 4 since you are going up on the y scale.
Mark wants to fence 4 rectangular gardens, each with a length of 9 1/4 feet and a width of 4 1/2 feet. What is the total length of fending Mark needs to
surround all 4 gardens?
Mark needs
feet of fencing
v
Mark wants to fence 4 rectangular gardens. So we calculate the perimeter of the each garden by this formula
P = 2(L) + 2(W)
Total Length of the garden =
=
Length = 18.5 feet
Total width of the garden =
=
Width = 9.0 feet
Perimeter of the garden = 18.5 + 9 = 27.5 feet
Mark wants to fence 4 garden
Therefore, 27.5 × 4 = 110 feet.
Mark needs 110 ft. fencing to surround all 4 gardens.
Answer:
4 1/2 +1 1/2= 5 1/2
Step-by-step explanation
16. What will be the midpoint of AB with A= (-3,-8) and B = (-9,-8)
Help....................
Answer:
i think its 61
srry if u get wrong
Step-by-step explanation:
PLEASE HELP!!! I AM BEING TIMED!
which of the following are Pythagorean triples?
can someone please please help me i dont understand these problems
Answer:
x=8
7x=56
Step-by-step explanation:
A culture of bacteria triples by the end of each hour, if there were initially 40 bacteria, how many bacteria should there be after 8 hours?
Answer:
262, 440
Step-by-step explanation:
40 x 3^8
40 x 6561
262, 440
firewood is usually sold by a measure known as a cord. A full cord may be a stack 8*4
Hailey cuts a 7-inch square piece of plywood for a birdhouse. She rotates the piece 90° counterclockwise. What is the length in inches of each side of the piece of plywood after the rotation?
Can someone please help me ASAP!!
Answer:
[tex]\huge\boxed{7\ \text{inches}}[/tex]
Step-by-step explanation:
As I mentioned earlier with a single side (line), rotations do not change the size of something. Only dilations do that. This goes for both lines AND shapes.
However, if the question said she dilated the piece, then yes, the length in inches would be different. However, rotation just changes the position and nothing happens to the length.
Hope this helped!
Whole numbers greater than zero are
Answer:
Natural numbers, because they consist of 1, 2, 3, etc...
Answer:
integers
Step-by-step explanation:
integers is what it is called
What is the slope of the following equation? -3y - x= 0
Answer:
-1/3
Step-by-step explanation:
Add x to both sides and then divide both sides by -3. The slope is the number next to the x value which is -1/3
1.4 has 2 significant digits as a result of which rule? a. All nonzero numbers are significant. b. Zeros between nonzero digits are significant. c. Final zeros after the decimal point are significant. d. Zeros used solely for spacing the decimal point are not significant.
Answer:
All non zero digits count in significant digits.
(a) is correct option.
Step-by-step explanation:
Given that,
1.4 has 2 significant digits.
We know that,
Significant digits :
All non zero digits count in significant digits.
All zero which is present in between two significant digits it is also significant.
Leading zero is not count as significant.
Trailing zero is count as significant.
We need to find 1.4 has 2 significant digits as a result of which rule
Using given rules
1.4 has 2 significant digits it is follows the rule of all non zero digits count in significant digits.
Hence, All non zero digits count in significant digits.
(a) is correct option.
If the direct variation equation representing the proportional relationship y=5x contains the data set of (8, ?). What would the y value be?
Answer:
y=40
Step-by-step explanation:
Plug in the 8 for the value of x so 5×8=40
If a football player passes a football from 4 feet off the ground with an initial velocity of 36 feet per second, how long will it take the football to hit the ground? Use the equation h = −16t2 + 6t + 4. Round your answer to the nearest hundredth.
0.72
0.65
0.35
0.27
Given:
The height of ball is represented by the equation is
[tex]h=-16t^2+6t+4[/tex]
To find:
The time taken by ball to hit the ground.
Solution:
First we need to find the zeroes of the given equation. So, for zeroes h=0.
[tex]-16t^2+6t+4=0[/tex]
Here, [tex]a=-16,b=6,c=4[/tex]. Usingquadratic formula, we get
[tex]t=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
[tex]t=\dfrac{-6\pm \sqrt{6^2-4(-16)(4)}}{2(-16)}[/tex]
[tex]t=\dfrac{-6\pm \sqrt{36+256}}{-32}[/tex]
[tex]t=\dfrac{-6\pm \sqrt{292}}{-32}[/tex]
[tex]t=-\dfrac{-6+ 17.088}{-32},\dfrac{-6+ 17.088}{-32}[/tex]
[tex]t=0.7215,-0.3465[/tex]
Time cannon be negative. So, at t=0.7215 the ball will hit the ground. Time taken by ball to hit the ground is
[tex]t=0.7215-0[/tex]
[tex]t=0.7215[/tex]
Round your answer to the nearest hundredth.
[tex]t\approx 0.72[/tex]
So, the ball will hit the ground after 0.72 seconds.
Therefore, the correct option is A.
Answer:
0.72
Step-by-step explanation:
I took the quiz
Solve and Check for Extraneous solutions
10) VX + 4 = x - 8
Answer:
x=XV+12
Step-by-step explanation:
Solve for a.
1. all real numbers
2. -1
3. 0
4. no solution
A boat can hold at most 1,000 pounds. If there is 300 pounds of equipment plus 25-pound boxes, what is the maximum number of boxes the ship can carry? Write as an inequality.
Answer:
28 boxes maximumStep-by-step explanation:
Given
Capacity of a boat = 1000 poundsEquipment = 300 poundsBoxes = 25 pounds eachNumber of boxes = xRequired inequality
300 + 25x ≤ 100025x ≤ 700x ≤ 700/25x ≤ 28 boxesDoes anyone know this?? Pls help!
Answer: x^3 -12x^2+31x-96+ 292/x+3
The remainder is 292
Step-by-step explanation: I used synthetic division to get the answer and got the answer above. I hope this helped :)
Members of the theater club sold tickets for the spring
musical. On Friday night, they made $125 in presales a
sold 120 tickets at the door. For the Saturday night sho
they earned $180 in presales and sold 110 tickets at the
door, If the theater club earned the same amount each
night, what is t, the cost per ticket?
Answer:
C. 125 + 120x = 180 + 110x
t = $5.5
Step-by-step explanation:
A.125t + 120 = 180t + 110
B. 120t + 110t = 125 + 180
C. 125 + 120t = 180 + 110t
D. 125 - 120t = 180 - 110t
Friday
$125 + 120t
Saturday
110t + 180
equate Friday and Saturday
125 + 120t = 110t + 180
Collect like terms
125 - 180 = 110t - 120t
-55 = -10t
Divide both sides by -10
t = -55 / -10
= 5.5
t = $5.5
Help me in Geometry!!!
I don’t know nothing about this help.
PHOTO ABOVE
Answer:
m<1 = 39
m<2 = 51
Step-by-step explanation:
For this problem, you need to understand that a little square in the bottom of two connecting lines represents a right-angle (an angle this 90 degrees). This problem, gives you two relationships for angle 1 and angle 2 within a right-angle. Using this information, we can solve for the measures of the two angles.
Let's write the two relations:
m< 1 = 3x
m< 2 = x + 38
And now let's right an equation that represents the two angles to the picture:
m<1 + m<2 = 90
Using this information, let's substitute the expressions we have for the two angles and solve for x. Once we have the value of x, we can find the measure of the two angles.
m< 1 + m< 2 = 90
(3x) + (x + 38) = 90
3x + x + 38 = 90
x ( 3 + 1 ) + 38 = 90
x ( 4 ) + 38 = 90
4x + 38 = 90
4x + 38 - 38 = 90 - 38
4x = 90 - 38
4x = 52
4x * (1/4) = 52 * (1/4)
x = 52 * (1/4)
x = 13
Now that we have the value of x, we simply plug it back into our expressions for the m<1 and m<2.
m<1 = 3x = 3(13) = 39
m<2 = x + 38 = 13 + 38 = 51
And we can verify this is correct with the relational equation:
m<1 + m<2 = 90
39 + 51 ?= 90
90 == 90
Hence, we have found the values of m<1 and m<2.
Cheers.
CAN SOMEONE HELP ME WITH MY QUESTION PLS?
Answer:
?????????
Step-by-step explanation:
???????????
is -3 a solution to the equation 3x-5=4+2x explain PLZ HELP!
Answer:
No, the answer is 9Step-by-step explanation:
Solve equation
3x - 5 = 4 + 2x3x - 5 - 2x + 5 = 4 + 2x - 2x + 5x = 9by completing the square
1. x2 + 5x + 6= 0
cing
Answer:
x=-3 and x=-2
Step-by-step explanation:
I wrote the math down