Answer:
3(3x-1)(3x+1)
Step-by-step explanation:
27x²-3
You can factor out a 3
3(9x²-1)
Now we can use the difference of perfect squares formula
x²-y²=(x+y)(x-y) which means that 9x²-1=
(3x-1)(3x+1)
put it all together and get
3(3x-1)(3x+1)
A rectangle has length of 80cm and a width 50cm. And a scale factor of 3.5 what is the area in square cm of the dilated rectangle
Answer:
49,000 square cm
Step-by-step explanation:
To get the area of the dilated rectangle, we need the dilated dimensions
We simply multiply the scale factor by the dimensions
we have this as;
3.5 * 50 = 175 cm
and
3.5 * 80 = 280 cm
The area of the dilated rectangle is thus;
280 * 175 = 49,000 cm^2
Simone is buying tomatoes at a farmers' market. The total cost
is directly proportional to the weight of the tomatoes purchased.
A sign reads "8 pounds for $15." How much will Simone have to
pay for 10 pounds of tomatoes?
PLZ HURRY
Start by dividing the 8 pounds and $15, you will get 1.875 in currency form $1.87. Multiply by 10 leaving you with $18.70!
What is the ratio of the number
of sides of a square to the number
of edges of a cube.
Answer:
1:2
Step-by-step explanation:
The ratio of the number of sides of a square to the number of edges of a cube is- A)1:2.
2) A group of students were surveyed about their opinions on Snowmobiles and
Skateboards. Some data is recorded below.
Likes
Skateboards
Do not like Skateboards
Likes
Snowmobiles
80
Do not like Snowmobiles
42
13
Q2.1) How many people would need to be in the like snowmobiles and do not like
skateboards" category to show no association between these two categories.
A2.1) Put how many people like snowmobiles and do not like skateboards here
Q2.2) Explain how you got your answer for question 2.1
AZ 2) Explain how you arrived at your answer using complete sentences and
be sure to include any calculation that you did
Answer:
so 109 people likes skateboard and 80 people like skateboard and 11 people dont
Step-by-step explanation:
80+11=122 122-13=109 so its 109
The total cost of sand to fill the sandbox is $59.48. Lauren and 3 friends divide the cost equally. How much does each person pay?
Answer:
$19.80
Step-by-step explanation:
Do the math
Two more than 11 times a number is equal to 24. What is the number?
Answer:
2
Step-by-step explanation:
Brainliest?!?!?!?
The answer to this would be 2.
Step by Step Explanation
Equation: 11x+2=24
Variable for the missing number: x
To do this, I suggest writing out an equation with the variable X to represent the missing number that we are trying to find. The equation would look something like this: 11x+2=24.
From here, to solve the equation, subtract 2 from both sides, which would then get the equation to be 11x=22. From here, you would then divide both sides by 11 to get the variable on it's own, which would be x=2. Since x is the variable that we are using to represent the missing number, the missing number would be 2.
A middle school student reads 48 books in 31/3 years. Find the students reading rate in books per year
Answer: 14 2/5 books per year
Step-by-step explanation:
From the question, we are informed that a middle school student reads 48 books in 31/3 years. The students reading rate in books per year will be calculated as:
= Total books read / Number of years
= 48 ÷ 3 1/3
= 48 ÷ 10/3
= 48 × 3/10
= 144/10
= 14 2/5 books per year
Hal earns $5 a week doing chores for his parents. He also earns $10 a week for each dog.d, he walks,
Write an equation to find m, the total amount of money Hal earns in one week. Which variable in the equation is the dependent variable and which variable is the independent variable? Tell how you know
Answer:
grpuirpfs better luck next time
Step-by-step explanation:
Answer:
M=10d+5
Step-by-step explanation:
Can someone help me with this please?
9514 1404 393
Answer:
see below
Step-by-step explanation:
The applicable properties of exponents are ...
(a^b)^c = a^(bc)
(a^b)(a^c) = a^(b+c)
(a^b)/(a^c) = a^(b-c)
__
[tex](-2^2)^{-6}\div(2^{-5})^{-4}=2^{-12}\div2^{20}=2^{-12-20}=\boxed{2^{-32}}\\\\2^4\cdot(2^2)^{-2}=2^{4+2(-2)}=2^0=\boxed{1}\\\\(2^2)^2\cdot (2^3)^{-3}=2^{2(2)+3(-3)}=2^{4-9}= \boxed{2^{-5}}\\\\(-2^{-4})^{-2}\cdot(2^2)^0=2^{(-4)(-2)}\cdot 1= \boxed{2^8}[/tex]
__
Please note that ...
[tex](-2^2)^{-6}=\dfrac{1}{(-4)^6}=\dfrac{1}{4096}=2^{-12}[/tex]
That is, since the outside exponent is even, the sign is immaterial. This is also true for the other expression containing -2. The result is positive.
Please I need answers for these two asap! Please explain your answer I will mark brainliest!!!
Answer:
1.) Triangle ABC is congruent to triangle DCB
Step-by-step explanation:
For the first one, the first 3 steps proved that all 3 sides in the 2 triangles formed by the diagonal are congruent to each other, meaning triangle ABC is congruent to triangle DCB (I named it like that specifically because the way you name the triangles has to be the exact same way you named the other triangle).
For the second one, the congruency statement should be GL ≅ AD, because the HL congruence theorem states that if a hypotenuse and leg of one right triangle is congruent to the hypotenuse and leg of another right triangle, those triangles are congruent.
Answer:
choice 4) Triangle ABC is congruent to triangle DCB because of the Side-Side-Side theorem
Step-by-step explanation:
Work out the size of angle x.
Not drawn accurately
132°
X Х
54°
Answer:
x = 84
Step-by-step explanation:
The sum of the angles around a point = 360°
sum the given angles and equate to 360
x + 132 + 54 + 90 = 360
x + 276 = 360 ( subtract 276 from both sides )
x = 84
Answer:
x = 84°
Step-by-step explanation:
→ Recall the fact that angles around a point add up to 360°
360 - (90 + 54 + 132 ) = x
→ Simplify
360 - 276 = x
→ Simplify again
84 = x ∴ x = 84°
Write a negative story using all four operations ( add, subtract, multiply, divide ) of integers as a part of the plot.
Answer:
BODMAS rule
Step-by-step explanation:
There are four basic rules in mathematics, Addition, subtraction, Multiplication and Division. All these operations can be used together or separately depending on the problem. When all the operation are required in the problem then BODMAS rule is applied to simplify the problem. BODMAS rule determines that operation will be performed according to the rule : Division, Multiplication, Addition and Subtraction. First operation which will be performed is division and last will be subtraction. This rule is same for all types of problems.
Last year Anna read 20 books. 5 were non-fiction, 7 were graphic novels and 8 were mystery novels. What is the ratio of graphic novels to total books?
Answer:
7/20 or 7 out of 20 could be graphic novels
Step-by-step explanation:
4 divided by 2 (2/5) ???
Answer:
as decimal = 2
as fraction = 1/2
(2) Need help ASAP -BRAINLIEST
Answer:
B
Step-by-step explanation:
I just took the test and teacher said it
Answer:
b
Step-by-step explanation:
/////////////////////////////////////////////
which mathematical process could be used to find the length of the side of a square, given it's area
Answer:
[tex] \sqrt{x} [/tex]
Step-by-step explanation:
the square root of what ever the area is. Area is length times width, but if all sides are the same then you just have to find the square root.
A
B
C
D
I need help
AnswerB
Step-by-step explanation:
hii pls help me if u can tysm
Answer:
she hit the flo'
next thing yk
shawdy got
low
low
low
low
low
low
low
Step-by-step explanation:
whats the equation 128 = p + 89 if p= 39
Formas de encontrar el numero de triángulos en un polígono
Answer:
n-2
Step-by-step explanation:
N sides polygon has n-2 triangles
2(2w+8)+2w=96 please help with steps
Answer:
w=[tex]\frac{40}{3}[/tex]
Step-by-step explanation:
2(2w+8)+2w=96
Distribute the 2.
4w+16+2w=96
Combine like terms.
6w+16=96
Subtract 16
6w=80
Divide 80 by 6.
w= 13.333333 or [tex]\frac{40}{3}[/tex]
Decimals
Percentages
Fractions
1/10
Answer:
0.1
Step-by-step explanation:
its out of 10
Answer:
Fraction: 1/10
Decimal: 0.1
Percentage: 10%
Step-by-step explanation:
I think this is what you meant if i'm wrong just correct me
please help me i need it
Answer: im bad at math sowwy
Step-by-step explanation:
PLEASE ONLY ANSWER IF YOU KNOW ABT IREADY
IS THIS GOOD FOR 7TH GRADE!?!
Answer: YES VERY GOOD KEEP UP THE GOOD WORK
Step-by-step explanation:
Use the distributive property to write an equivalent expression.
6(6f + 10g - 6)
Answer:
36f + 60g -36
Step-by-step explanation:
Multiply each term within the parentheses by 6
What will make 3/10 n= 4/5?
Answer:
put 8/3
Step-by-step explanation:
Given
[tex] \frac{3}{10} n \: = \frac{4}{5} \\ inserting \: n \: = \frac{8}{3} \: we \: get \: \\ \frac{3}{10} \times \frac{8}{3} = \frac{4}{5} \\ cancel \: 3 \: an d \: divide \: 8 \: and \: 10 \: by \: 2 \\ we \: get \\ \frac{4}{5} = \frac{4}{5} [/tex]
write an equation in slope-intercepet form (9,-2) and (-3,2)
Answer:
Step-by-step explanation:
slope=(2-(-2))/(-3-9)=4/(-12)=-1/3
eq . Of line is y-(-2)=-1/3(x-9)
or y+2=-1/3 x+3
y=-1/3x+3-2
y=-1/3 x+1
will give brainliest Pleaseeee HELP asap no guessing please
Answer:
S, T & R
Step-by-step explanation:
T is 1/2 of S and R is 1/2 of T
good luck, i hope this helps :)
Factor.
x2+14x+48
Enter your answer in the box.
Answer:
(x+6)(x+8)
Step by step explanation:
Because 6 + 8 is the 14 in the middle and 48 is 6 x 8 and you thats all you need just put the x's at the beginning
Answer:
For those who were looking for x^2+14x+48
The answer is:
A number, y, subtracted from 10
Answer:
y subtracted from 10 is
10 - y
Hope it will help :)
Answer: D: 10 - y
Step-by-step explanation:
we can rule out option B and C since there isn't a subtraction sign
so now we have A and D
The answer isn't A because thats 10 being subtracted from y