Answer:
-2x^2 +6x +4
Step-by-step explanation:
3x^2+8x-7 - (5x^2+2x-11)
Distribute the minus sign
3x^2+8x-7 - 5x^2-2x+11
Combine like terms
3x^2 - 5x^2+8x -2x+11-7
-2x^2 +6x +4
PLS ANSWER ASAP FASTTT
Answer:
26.9 i think
Step-by-step explanation:
Answer:
26.9
Step-by-step explanation:
I have attached the work to your problem.
Please see the attachment below.
I hope this helps!
Write each as a percent. Round to the nearest tenth of a percent
Answer:
[tex]10.7\%[/tex]
Step by step explanation
hope this helps
brainliest appreciated
good luck! have a nice day!
Step-by-step explanation:
0.107
= 0.107/100 × 100 = 0.107 %
what is the volume of the cone to the nearest whole unit ?
A square has a side length of 12 cm. Which of the following is closest to the length of its diagonal Your answer: 9 cm 12 cm 12 square root of 2 cm 24 square root of 3 c m
Answer:
[tex]12\sqrt{2}[/tex]
Step-by-step explanation:
The formula for diagonal of the square:
[tex]d=\sqrt{2} a[/tex]
[tex]d=\sqrt{2} \times 12[/tex]
There are three colors of marbles in a bag: green, red, and blue.
The probability of getting a green marble is 5/12
The probability of getting a red marble is 1/4
What is the probability of getting a blue marble?
B
A
1/3
3/8
D
2/3
С
5/8
Answer:
A 1/3
Step-by-step explanation:
5/12+1/4= 8/12= 2/3
1-2/3=1/3
Find the slope of the line that contains the points named.
A (0, d), B(d, 0)
undefined
0
-1
Answer:
-1
0-d/d-0 = -d/d=-1
Answer:
-1
Step-by-step explanation:
Hope this helps.
Brad is putting an eight foot diameter circular garden
in his yard. He will put plastic edging around the
flowerbed. How many feet of edging will Brad need?
Answer:
Step-by-step explanation:
The Formula for finding the circumference is C = πd
C = π(8)
Brad will need 25.13 feet of plastic edging to complete his garden.
Please answerr giving brainliest to correct answer
Answer:
[tex]$\text{P(Choose Cab Once)}=\frac{4}{9} $[/tex]
Step-by-step explanation:
In the morning Elizabeth has three transportation options to work.
It is [tex]$\frac{1}{3} $[/tex] :
In the evening Elizabeth has the same three transportation options to go home.
It is [tex]$\frac{1}{3} $[/tex] again.
But if we consider that she will take the cab once, the options will change to [tex]$\frac{2}{3} $[/tex] because now she can choose 2 options out of 3.
[tex]$\text{P(no cab) }= \frac{2}{3} $[/tex]
In order to use the cab once, we have two options:
She will use the cab in the morning or she will use the cab in the evening:
First route (cab in the morning):
[tex]$\text{Route 1}=\text{P(Choose Cab) } \cdot \text{P(Choose another one)} $[/tex]
[tex]$\frac{1}{3} \cdot \frac{2}{3} $[/tex]
Second route (cab in the evening):
[tex]$\text{Rote 2}=\text{P(Choose another one) } \cdot \text{P(Choose Cab)} $[/tex]
[tex]$\frac{1}{3} \cdot \frac{2}{3} $[/tex]
We have two routes, so
[tex]\text{P(Choose Cab Once)}=\text{Route 1}+\text{Route 2}[/tex]
[tex]$\text{P(Choose Cab Once)}=\frac{1}{3} \cdot \frac{2}{3} +\frac{1}{3} \cdot \frac{2}{3} $[/tex]
[tex]$\text{P(Choose Cab Once)}=\frac{2}{9} \cdot \frac{2}{9} $[/tex]
[tex]$\text{P(Choose Cab Once)}=\frac{4}{9} $[/tex]
What are the coordinates of the image of L for a dilation with center (0, 0) and scale factor 4?
Answer:
The vertices of ABCD:
A ( - 3, 1 )
B ( 4 , - 3 )
C ( 1, 3 )
D ( - 1 , 4 )
∴ ( 4 x, 4 y ):
A ` ( - 12, 4 )
B ` ( 16, - 12 )
C ` ( 4, 12 )
D ` ( - 4 , 16 )
Step-by-step explanation: I hope this helps! ™(*/ω＼*)
1. A breakfast cereal is made of oats, nuts, and raisins. The advertisements boast that 25% of the cereal in each box is almonds. What portion of each box is not almonds?
2. A breakfast cereal is made of oats, nuts, and raisins. The advertisements boast that 25% of the cereal in each box is almonds. If each box contains 12 cups of cereal, how many cups of almonds are in each box?
3. A breakfast cereal is made of oats, nuts, and raisins. Each box contains 12 cups of cereal, and 4 cups are oats. What percentage of each box is oats?
Answer:
Step-by-step explanation:
1) The advertisements boast that 25% of the cereal in each box is almonds. It means that the percentage of the other cereals in the box is 100 - 25= 75%
Therefore, the portion of each box that is not almonds is 75/100 = 0.75
2) The advertisements boast that 25% of the cereal in each box is almonds. If each box contains 12 cups of cereal, then the number of cups of almonds in each box is
25/100 × 12 = 3 cups
3) if each box contains 12 cups of cereal, and 4 cups are oats, then the percentage of each box that is oats is
4/12 × 100 = 33.33%
I need help
Explain your answer please
Answer:
For a the answer is 1/20 or 5%. For b the answer is 6/20 or 30%.
Step-by-step explanation:
a) There are 20 spots the dart can land on. To land on one specific spot, it would be 1/20. 1 spot out of 20 spots.
b) There are 20 spots the dart can land on. To land on any of the 6 spots, it would be 6/20. 6 spots out of 20 spots.
Write the equation of a line that passes through (4,-10) and has a slope of 2, please!
Answer:
y = 2x - 18
Step-by-step explanation:
There are lots of different methods to do these types of questions, but this is the way i like to do it.
Coordinate (x1, y1) : (4, -10) and Gradient (m): 2
Start with this generic equation:
y- y1 = m(x-x1)
Substitute in the values they have given you:
y - (-10) = 2(x-4)
This becomes:
y + 10 = 2x - 8
Keep solving by moving the 10 over to the other side:
y = 2x -8-10
y = 2x - 18
An easy way to double check:
1) the coefficient of x is the slope. We got 2x, and the slope is 2, so that's correct.
2) Substitute x=4 into the equation, and we get -10, which is the exact coordinate that they gave us. This is also right.
Hope this helped : )
solve for x. 2x^2=2x-3
30% of blank equals 12
Answer:
40
Step-by-step explanation:
If you divide 30 by three, you get the 10%, which is 4, you multiply the 10% by ten to get the 100%, and you get 40. Hope this helps:)
What is the measure of xº?
Answer:
X would be 48 degrees
Step-by-step explanation:
If you would like an explanation just comment it
Your initial investment of $20,000 doubles after 10 years. If
the bank compounds interest quarterly, what is your interest
rate?
Answer:
2,000
20,000 *10 /100
this is the answer and this is how to solve it
The area of a square is 81cm squared . What is the perimeter of the square?
Answer:
36 cm
Step-by-step explanation:
The area of a square is given by
A = s^2
81 = s^2
Take the square root of each side
9 =s
We want the perimeter
P =4s
P= 4*9
P = 36
Alvin is 15 years younger than Elga. The sum of their ages is 25. What is Elga’s age
steve has scored the following points in his last five basketball games: 14,8,8,13,5. How many points must be score in the next game to average 11 points per game
Answer:
18
Step-by-step explanation:
14 + 8 + 8 + 13 + 5 = 48. 48 + 18 = 66. 66 / 6 = 11.
im just doing this for the points lol / / / pay back
I need help ASAP!!!!!
70% of a school budget is spent on teachers, 10% on other staff, and the rest on energy and resources. A Write the ratio of the amount spent on teachers to other staff to energy and resources in its simplest form. B What fraction of the budget is spent on energy and resources? Write your fraction in its simplest form.
Please help! Ty :D WILL GIVE BRAINLIEST
Kevin spends $11.25 on lunch every week during the school year. If there are 35.5 weeks during the school year,
how much does Kevin spend on lunch over the entire school year? Remember to round to the nearest penny.
Answer:
$376.88
Step-by-step explanation:
11.25 x 33.5= 376.875. So round up 376.88
One month Mr. Moore made 3 withdrawals of $20 and 1 withdrawal for $80 from his account. How did the withdrawals change the amount in his account?
Answer:
65 :)
Step-by-step explanation:
What is m/B and m/ABC? A. m/B=50, m/ABC=40 B. m/B=60, m/ABC=30 C. m/B=40, m/ABC=50 D. m/B=20, m/ABC=70
Answer:
D. m/B=20, m/ABC=70
Step-by-step explanation:
20. In the figures below, the cube-shaped box is 6 inches wide and the rectangular box is 10 inches long, 4 inches wide, and 4 inches high. How much
of the cube-shaped box than the rectangular box?
A. 50 cubic inches
B. 60 cubic inches
C. 66 cubic inches
D. 56 cubic inches
Answer:
56 cubic inches
Step-by-step explanation:
Volume of cube box = 6^3 = 6 *6*6 = 216 , Volume of rectangular box = 10*4*4 = 160 . Difference = 216 - 160 = 56 cubic inches. 56 cubic inches greater is the volume of the cube-shaped box than the rectangular box.
Answer:
Step-by-step explanation:
cube volume=side^3
given that the side is 6, the volume is 6^3 or 216 cubic inches
volume regular rectangular prism=length times width times height
given that length=10, width is 4 and height is 4, volume=10*4*4=160 cubic inches
how much greater
216-160=56
it is 56 cubic inches greater
this is ur answer buddy]
Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted: rectangle with a length of x plus 15 and width of x plus 10 with a rectangle in the bottom right corner labeled bench that has a length of 5 and width of 1
a=(x+20)(x+11)
a=(x+15)(x+10) + 5
a=(x+15)(x+10) - 5
a=(x+9)(x+10)
Answer:
C
Step-by-step explanation:
A patio=(x+15)*(x+10)
A bench=5*1=5
A painted=A patio-A bench
A painted=(x+15)*(x+10)-5
thus, the answer is C
The painted area is [tex]a=(x+15)(x+10)-5[/tex]. So, option C is correct.
Important information:
Length of rectangular patio is (x+15).Width of rectangular patio is (x+10).Length of bench is 5.Width of bench is 1.Area of rectangle:Area of a rectangle is:
[tex]A=Length \times Width[/tex]
Area of rectangular patio is:
[tex]A_1=(x+15)(x+10)[/tex]
Area of bench is:
[tex]A_2=5\times 1[/tex]
[tex]A_2=5[/tex]
The painting area is:
[tex]a=A_1-A_2[/tex]
[tex]a=(x+15)(x+10)-5[/tex]
Therefore, the correct option is C.
Find out more about 'Area of rectangle' here:
https://brainly.com/question/3133832
Mike makes a commission of 10% on each TV set sold at store. Each TV costs $120. How much
money will he make as commission if store sells 25 TV sets?
Answer:
$300
Step-by-step explanation:
10% = .1 and each TV costs 120 so .1*120=12 then you take 12*25 since 12 is the money he makes for seeling the tv multiplied by the total TV's sold and you get 300 so Mike makes $300
Answer:
300 just cross multiply to get the answer.
A square rug has an area of 100 square feet. What is the length of one side of the rug?
Answer:
10 ft
Step-by-step explanation:
Square root of 100 = 10
Answer:
10 feet
Step-by-step explanation:
To find the length of a square side using the area, what you need to do is find the square root of the area because a square area is the side length squared soooo.
[tex]\sqrt{100} =10[/tex]
If we are given x such that 25^x-9^y=18 and 5^x-3^y=3, compute 5^x+3^y.
25 = 5*5 and 9 = 3*3, which we can exploit to write
[tex]25^x-9^y=(5^2)^x-(3^2)^y=5^{2x}-3^{2y}=(5^x)^2-(3^y)^2[/tex]
so that this expression is actually a difference of squares. We can factorize this to get
[tex](5^x-3^y)(5^x+3^y)=18[/tex]
and given that [tex]5^x-3^y=3[/tex], we divide both sides by this to get
[tex]5^x+3^y=\dfrac{18}3=\boxed{6}[/tex]
PLEASE HELP ME IN GEOMETRY
Answer:
5 units
Step-by-step explanation:
I used the pythagorean theorem (a^2 + b^2 = c^2) to find the answer. I put 3 in a and 4 in b. I squared them and got 9 + 16 = 25. I found the square root of 25 which is 5 and that is my answer.
