Answer:
see below
Step-by-step explanation:
(3x + 8) units by (6x + 5) units.
A = l*w
= (3x+8)(6x+5)
Distribute
3x*(6x+5) + 8(6x+5)
18x^2 +15x + 48x +40
Combine terms
18x^2+63x+40 units^2
The degree is 2 ( the highest power of x)
This is a trinomial ( it has 3 terms)
Multiplication is closed for polynomial multiplication
We started with polynomials and we ended up with a polynomial.
find the missing number in the factor tree
for 20 points
i hope you will help
Answer:
see below
Step-by-step explanation:
80 = 4* 20
2*2 2 * 10
2 *5
We are breaking the numbers into primes
2*2*2*2*5
A 40 foot ladder is set against the side of a house so that it reaches up 24 feet. If Lily
grabs the ladder at its base and pulls it 4 feet farther from the house, how far up the
side of the house will the ladder reach now? (The answer is not 20 ft.) Round to the
nearest tenth of a foot.
Answer:
17.4
Step-by-step explanation:
got it wrong on delta
a^{2}+(36)^{2}=
a
2
+(36)
2
=
\,\,40^{2}
40
2
Use the Pythagorean Theorem.
a^{2}+1296=
a
2
+1296=
\,\,1600
1600
Simplify.
-1296\phantom{=}
−1296=
\,\,-1296
−1296
Subtract 1296 from both sides.
a^{2}=
a
2
=
\,\,304
304
\sqrt{a^{2}}=
a
2
=
\,\,\pm\sqrt{304}
±
304
Square root both sides.
a=
a=
\,\,17.435595...
17.435595...
Simplify. Ignore negative root, as length must be positive.
a\approx
a≈
\,\,17.4
17.4
The distance far up the side of the house will the ladder reach now will be 15.2 feet.
The distance far up the side of the house will the ladder reach now will be 15.2 feet.
A 40 foot ladder is set against the side of a house so that it reaches up 24 feet.
What is the Pythagoras theorem?The Pythagoras theorem which is also referred to as the Pythagorean theorem explains the relationship between the three sides of a right-angled triangle. According to the Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.
Let the distance between the base of house and ladder foot is x feet.
By using Pythagoras theorem;
40² = 24² + x²
⇒ 1600 - 576 = x²
⇒ x² = 1024
⇒ x = 32 feet
If Lily grabs the ladder at its base and pulls it 4 feet farther from the house.
Then, the distance between the base of house and ladder foot = x + 5
Height of house is h feet
40² = h² + (x + 5)²
⇒ 1600 = h² + (32 + 5)²
⇒ 1600 = h² + 1369
⇒ h² = 1600 - 1369
⇒ h² = 231
⇒ h = √231
⇒ h = 15.19 feet
Therefore, the distance far up the side of the house will the ladder reach now will be 15.2 feet.
To learn more about the Pythagoras theorem visit:
brainly.com/question/21926466.
#SPJ2
finding the axis of symmetry of its graph y=3x^2-18x+1
Answer:
x=3
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
Given a quadratic in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the axis of symmetry is
x = - [tex]\frac{b}{2a}[/tex]
y = 3x² - 18x + 1 ← is in standard form
with a = 3, b = - 18
x = - [tex]\frac{-18}{6}[/tex] = 3
Axis of symmetry is x = 3
Which statement is not true?
Answer:
top right
Step-by-step explanation:
expanded notation for 209.36
Answer:
2.0936 * [tex]10^{2}[/tex]
Hope that this helps!
Find (from (3)
f(x) = x^2 - x
Answer:
I think the answer is 6.......
Line l and line m are straight lines. What is the measure of angle y?
43°
47°
137°
147°
Answer: 190
Step-by-step explanation:
Answer:
C. 137
Step-by-step explanation:
The table shows the time a patient spends at the dentist and the amount of the bill.
A 2-column table with 4 rows. The first column is labeled time spent at the dentist (in hours) with entries 1.4, 2.7, 0.75, 1.6. The second column is labeled bill amount (in dollars) with entries 235, 867, 156, 215.
What is the correlation coefficient for the data in the table?
–0.93
–0.27
0.27
0.93
Answer:
Correlation coefficient for the data in the table was found to be 0.93
Step-by-step explanation:
The correlation coefficient for the data in the table is 0.93.
What is the correlation coefficient?The correlation coefficient is used to measure the relationship that exists between two or more variables. If two variables have a positive correlation, as one of the variable increases, the other variable increases. If one of the variable decreases, the other variable decreases.
When calculated on a financial calculator, the correlation coefficient is 0.93.
To learn more about correlation, please check: https://brainly.com/question/27246345
#SPJ2
3 x 12b = 180 Find the value of b, then add.
Anwser:
180/3=60
60/12=5
3x(12x5)=180
b=5
Step-by-step explanation:
The wheely fast co. Makes custom skateboards for professional riders. They model their profit with the relation P=-2b^2 + 14b - 20, where b is the number of skateboards they produce(in thousands) and P is the company's profit in hundred thousands of dollars. When does wheely fast break even?
Answer:
The answer is below
Step-by-step explanation:
Breakeven point is the point of balance where their is neither a loss or a profit. At the breakeven point, the revenue gotten from the sell of goods is equal to the cost of production of the goods, hence the profit is zero.
Given the profit function:
P=-2b² + 14b - 20
At breakeven P = 0, hence:
0 = -2b² + 14b - 20
-2b² + 14b - 20 = 0
-2b² + 10b + 4b - 20 = 0
-2b (b - 5) + 4(b - 5) = 0
(b - 5)(-2b + 4) = 0
b - 5 = 0; or -2b + 4 = 0
b = 5; or b = 2
Since b is in thousands, hence the company breaks even when the number of skateboards produced is either 2000 or 5000
The members of a golf team contributed a total of $14.30 for a party to be held after their practice. Each member contributed the same amount of money in dimes only. How many members are in the team and how much money did everyone contribute? Give all possible answers.
Answer:
each teammate contributed 1.43 sorry but i do not know how many members they have because my head hurts
PLEASE HELPPPPPPPPPPPPPPPPPPPp
Answer:
I think its 30 meters. The bottom rectangle is 21 Meters and the top square is 9 Meters
Tracey paid $374.25 for a new iPad. What was the original cost if the iPad was on sale for 25% off
Answer:
$467.8125
Step-by-step explanation:
Percentage increase = 25% × 374.25
New value = 374.25 + Percentage increase
New value =
374.25 + Percentage increase =
374.25 + (25% × 374.25) =
374.25 + 25% × 374.25 =
(1 + 25%) × 374.25 =
(100% + 25%) × 374.25 =
125% × 374.25 =
125 ÷ 100 × 374.25 =
125 × 374.25 ÷ 100 =
46,781.25 ÷ 100 =
467.8125 ≈
467.81
What is the measure of angle 8?
Answer:
C. 107°
Step-by-step explanation:
Angles 4 and 8 measures the same since they're congruent.
A straight line measures 180°
180° - 73° = 107°
Helppppppppppppppppppp I’ll mark you brainlist don’t respond if you’re going to put something random I will report you :)
Answer:
55
Step-by-step explanation:
You're looking at a right triangle, with both legs being complementary forming 90
Since you know one measurement, 35, substract that from 90 and you get your missing angle.
90-35 = 55
Answer:
measure of the missing angle=55°
Step-by-step explanation:
Hi there!
We're given a right angle (as indicated by the red marking) being split into a 35° angle and another angle of unknown degree. Let's call the value of this angle x.
Because the given angle is 90° being split apart by the 35° angle and x, x+35° will equal to 90° (this is called parts whole postulate, where a whole (the 90° angle) is equal to the sum of its parts (the 35° angle and the x° angle))
so we can solve the equation as:
x+35°=90°
subtract 35 from both sides
x=55°
so the measure of the missing angle is 55°
Hope this helps! :)
PLS HELP! 20 POINTS!
write an equation for a line passing through (-4, 3) and (0, 6)
Answer:
y = 3/4x + 6
Step-by-step explanation:
6-3 3
------- = ------
0--4 4
y = mx + b
take coordinates for y and x out of (-4, 3) or (0,6)
6= 3/4 * 0 + b
6 = 0 + b
b = 6
Emma says the length of her favorite movie is 120120120 minutes, but she has rounded the time to the nearest ten.
Which could be the number of minutes of Emma's favorite movie before she rounded it?
Answer:
17
Step-by-step explanation:
How much more does Rasheed need to earn before he can buy the video games?
$3.85
$13.25
$15.25
$17.00
Find missing angleeeeeeeeeeeeeeeeeeeeeeee
Answer:
C) 80
Step-by-step explanation:
triangles always add up to 180 degrees, so 80+20=100 the missing angle is 80 degrees
HELPP WILL GIVE BRAINLEST !!!!!!!!
Answer:
8.06
Step-by-step explanation:
please help asap!!!! will mark brainliest
Answer:
A 9x--12 i hope this helps
Answer:
a. 9x-12
Step-by-step explanation:
Perimeter means total length of sides.
So, add (2x-7)+(5x-3)+(2x-2)
9x-12
Select the correct answer.
Consider the explicit formulas for two sequences.
f(n) = 2(1 – 1) - 1
g(n) = 3n + 6
Which mathematical statement is correct?
O A. 96) > 6)
O B. (7) > g(10)
OC. F(5) < g(3)
O D.g(8) = f(5)
Answer:
[tex](c)\ f(5) < g(3)[/tex]
Step-by-step explanation:
Given
[tex]f(n) = 2(n-1) -1[/tex]
[tex]g(n) = 3n + 6[/tex]
Required
Which is correct
[tex](a)\ g(6) < f(6)[/tex]
Calculate g(6) and f(6)
[tex]f(n) = 2(n-1) -1[/tex]
[tex]f(6) = 2(6 - 1) -1 = 2*5-1=9[/tex]
[tex]g(n) = 3n + 6[/tex]
[tex]g(6) =3*6 +6 =24[/tex]
(a) is false, because g(6) > f(6) i.e. 24 > 9
[tex](b)\ f(7) > g(10)[/tex]
Calculate f(7) and g(10)
[tex]f(n) = 2(n-1) -1[/tex]
[tex]f(7) = 2*(7-1)-1=2*6-1=11[/tex]
[tex]g(n) = 3n + 6[/tex]
[tex]g(10) =3*10+6=36[/tex]
(b) is false, because f(7) < g(10) i.e. 11 <36
[tex](c)\ f(5) < g(3)[/tex]
Calculate f(5) and g(3)
[tex]f(n) = 2(n-1) -1[/tex]
[tex]f(5) =2 *(5-1)-1 = 2*4-1=7[/tex]
[tex]g(n) = 3n + 6[/tex]
[tex]g(3) = 3*3+6=9+6=15[/tex]
(c) is true, because f(5) < g(3) i.e. 7 <15
Answer:
the answer is f(7) > g(10) because 63 > 36.
Step-by-step explanation:
A carpenter has two pieces of wood. He wants to find the density of each piece.
The first piece came from a birch tree. The piece of birch wood measures 2 meters by 4 meters by 3 meters and weighs (mass) 16 kilograms.
The second piece came from a cypress tree. The piece of cypress wood measures 3 meters by 5 meters by 2 meters and weighs (mass) 15.3 kilograms.
Which piece of wood has a greater density?
Answer:
The wood from the birch tree has a greater density than the wood that came from the cypress tree.
Step-by-step explanation:
Density formula: mass/volume
2 times 4 times 3=24 meters for the volume
Birch tree: 16/24 is the density
3 times 5 times 2=30 meters for the volume
Cypress tree: 15.3/30 is the density
If we convert the densities of each piece of wood to decimal it will be easier to determine which has a greater density.
So birch tree: 0.6 repeating is the density
Cypress tree: 0.51 is the density
Therefore the wood that came from the birch tree has a greater density than the wood that came from the cypress tree.
Hope I helped, have a nice day :)
Help please asap tysm! 10 brainly points! Will mark brainliest if you put in a random answer you will be reported! Tysm! <3 Need this asap please tysm!
Answer:
B
Step-by-step explanation:
Dividing by a number is the same as multiplying by the reciprocal (one over that number)
so z/144 is equal to z * 1/144
1/4 - (-3/4)
anyone please, and thanks
Answer:
1
Step-by-step explanation:
1/4 - ( - 3/4)
{Multiplying two negative signs gives us positive sign}
1/4 + 3/4
Add both of them:
1/4 + 3/4 = 1
Answer:
1
Step-by-step explanation:
note that - (- ) = +
[tex]\frac{1}{4}[/tex] - (- [tex]\frac{3}{4}[/tex] )
= [tex]\frac{1}{4}[/tex] + [tex]\frac{3}{4}[/tex]
= 1
System of equations, please help.
Answer:
3.75*A + 2.50*D = 35
A + D = 12
A = 12 - D
3.75*(12-D) +2.5*D= 35
45 - 3.75D + 2.5D = 35
45 - 1.25D = 35 |-35
10 - 1.25D = 0 |+1.25D
10 = 1.25D | /1.25
8 = D
A+D=12
A+8=12 |-8
A=4
If you like it, brainliest would be cool
What is the quotient?
t+3/t+4
Answer:
[tex] \frac{t + 3}{t + 4} = 1 - \frac{1}{t + 4} [/tex]
f(x) = 3x² + 7x; g(x) = 6x +3; f(x) - g(x) =
Answer:
[tex] = 3x {}^{2} + x - 3[/tex]
Who answered the most questions correctly