Answer:
(ab - 6)(2ab + 5)
Step-by-step explanation:
Assuming you require the expression factorised.
2a²b² - 7ab - 30
Consider the factors of the product of the coefficient of the a²b² term and the constant term which sum to give the coefficient of the ab- term
product = 2 × - 30 = - 60 and sum = - 7
The factors are - 12 and + 5
Use these factors to split the ab- term
= 2a²b² - 12ab + 5ab - 30 ( factor the first/second and third/fourth terms )
= 2ab(ab - 6) + 5(ab - 6) ← factor out (ab - 6) from each term
= (ab - 6)(2ab + 5) ← in factored form
A scale model of a building has a height of 1/5 meter. The scale of the model is 1 cm = 0.5m. What is the height of the building?
Answer:
2000 meters
Step-by-step explanation:
first you have to convert the meters into centimeters so then 1cm=100 cm
1/5 meter=20 cm
20*100=2000
2000 centimeters or 20 meters
hope this helps
brainliest?
Q
100%
What is 110 divide 2?
Answer: 55
110 ÷ 2 = 55 110 in half is 55 because 10 in half is 5 and 100 in half is 50 so 55 +5 = 55
110÷2=55
Step-by-step explanation:
Divide line segments
What are the coordinates of point Bon AC such that AB
BC?
Given Options
A (-3,1.5)
B (-3,1.6)
C (3,-5.3)
D (3,-5.26)
Answer:
I think its B.
Step-by-step explanation:
5|2x - 3| + 4 = 9
How do you solve this
Answer:
x = 2, or x = -1
Step-by-step explanation:
If 2x - 3 is inside the parenthesis (), then the value of x is 2.
If 2x - 3 is inside the absolute value sign, then the value of x will probably be -1.
Solution 1
(10x-15) + 4 = 9
10x -11 = 9
10x = 20 -> x = 2
Solution 2 (Not 100% sure)
|10x -15| +4 = 9
10x + 15 +4 = 9
10x + 19 = 9
10x = -10 -> x = -1
Please correct me if I'm wrong.
In which situation is the distance traveled proportional to time?
A. An airplane landing
B. A soccer ball you kick across a field
C. A person running on a treadmill at 3 mph for 6 minutes
D. A 3-minute ride on a roller coaster
Answer:
c
Step-by-step explanation:
What is the inverse operation of a power or exponent?
Answer:
The inverse of a power function of exponent n is a nth root radical function. For example, the inverse of y = 10x^2 is y = √(x/10) (at least for positive values of x and y).
The value of a collectible coin can be represented by the equation y = 2 x + 15, where x represents its age in years and y represents its total value in dollars. What is the value of the coin after 19 years?
Answer:
y = 53
Step-by-step explanation:
To get the answer, first put 19 in place of the x, and then times that iwth two, getting 38, you add that to 15. The answer is 53.
Answer:The Value of the coin after 19 years is $53.
Step-by-step explanation:If x=age, then simply substitute the x in “2x+15” for 19.After you do that you should get y=2(19)+15.Do the math to get y=38+15. Y=53.
In 1819, the United States purchased Florida from Spain for
$5 X 106. The area of Florida is about 6.6 x 104 square miles.
Which key strokes on a calculator will give the cost the
United States paid for each square mile of Florida?
A) 6.6EE4×5EE(-)6
B) 6.6EE4÷5EE6
C)5EE6×6.6EE4
D)5EE6÷6.6EE4
Answer:
D. 5 x 10⁶ ÷ 6.6 x 10⁴Step-by-step explanation:
If 6.6 x 10^4 square miles of florida costs $5 X 10^6, then to get one square miles we will follow the given steps below;
6.6 x 10^4 mi² = $5 X 10^6
1mi² = $x
Cross multiply;
$5 X 10^6 * 1 = 6.6 x 10^4 * x
6.6 x 10⁴ x = 5 X 10⁶
Divide both sides by 6.6 x 10⁴ to get x;
6.6 x 10⁴ x /6.6 x 10⁴ = 5 x 10⁶/6.6 x 10⁴
x = 5 x 10⁶ ÷ 6.6 x 10⁴
x = 0.76*10⁶⁻⁴
x = $0.76*10²
Hence the key strokes on a calculator will give the cost the United States paid for each square mile of Florida is 5 x 10⁶ ÷ 6.6 x 10⁴
Please help me with this!! 18 points!!
Answer:
Step-by-step explanation:
20 is 8x8^5=262144 (8x8)^5= 1073741824 so they are not the same
21 is (3^2)^-3 = 0.001372 (3^3)^-2=0.001372 THEY ARE NOT THE SAME
okay thats
all i got its a bit hard to read for me sorry
Which expression has a value of 2/3
1. 8 + 24 : 12 x 4
2. 8 + 24 = (12 x 4)
3. 8+ (24 = 12) x4
4. (8 +24) + (12 x 4)
Find the difference.
24 - 48
-100 points
Answer:
24-48=-24
Step-by-step explanation:
24-48-100
=- 24-100
= -124
Lol
Help me guys I suck at this :(
Answer:
D.
Step-by-step explanation:
Breianliest?
f(x)=2/3x+3 what is the value of f(12)
Answer:
f(12) = 11
Step-by-step explanation:
Step 1: Define
f(x) = 2/3x + 3
f(12) is x = 12
Step 2: Substitute and Evaluate
f(12) = 2/3(12) + 3
f(12) = 8 + 3
f(12) = 11
Find the value of k. Then find the angle measures of the polygon
Answer:
45° + 2k + k = 180°
=> 45 + 3k = 180
=> 3k = 180 – 45
=> k = 135/3
=> k = 45
other two angles :-
2k = 2×45 = 90°
k = 45°
Can someone really help me please!!!!!!!!
Answer: 1/2
Step-by-step explanation: The line goes up one and over two. That is how you find your slope from a graph.
what is the value of 5 in 7,156,489
Answer:
The value of 5 is 50,000
Step-by-step explanation:
what is a line graph
Answer:
A graph with points connected by lines to show how something changes in value:
• as time goes by,
• or as something else changes.
Step-by-step explanation:
Answer:
This is a line graph
Step-by-step explanation:
Complete the expression so it forms a perfect-square trinomial.
x² - 5x +
✔ 25/4
x² +
x + 49
Answer:
Second question in Assignment = A) 14
Step-by-step explanation:
x^2 = 14x +49
Answer: 14
Step-by-step explanation:
The first one is 25/4 then 14
The table represents a function.
What is f(5)?
A. -8
B. -1
C. 1
D. 8
Answer:
A. -8
Step-by-step explanation:
We can look at the table and figure out how we get f(5)
really its just the x value pugged into the x value for the function
after that we look on the table, f(5) is -8 because at the bottum of the table it shows 5 and -8
High Hopes^^
Barry-
Jackie plays football for the New England Patriots. During the second quarter, Jackie carried the ball 2 times. He gained four yards during the first carry and lost seven yards during the second. HOw many total yards did he gain during the second quarter?
Answer:
Actually he lost 3 yards.
It means he gained -3 yards.
Step-by-step explanation:
During second quarter, Jackie carried the ball 2 times. He gained 4 yards during first carry.
He lost 7 on second carry.
He gained = 4-7 =-3 yards
solve 3(3+3) + 3(3+3)
Answer:
3×6 + 3×6 =36
Step-by-step explanation:
3 multiply 3+3 = 3*6 =18×2 =36
Answer:
Step-by-step explanation:
=3(3+3)+3(3+3)
=3x6+3x6
=18+18
=36
I hope this helps
Pls mark as Brainliest
What are the factors of 42
Answer:
Step-by-step explanation:
42
/ \
6 7
/ \ \
2 3 7
−7 + 3(8n − 8) = 8(7 + 3n) please show work
Answer:
Step 1: Simplify both sides of the equation.
−7+3(8n−8)=8(7+3n)
−7+(3)(8n)+(3)(−8)=(8)(7)+(8)(3n)(Distribute)
−7+24n+−24=56+24n
(24n)+(−7+−24)=24n+56(Combine Like Terms)
24n+−31=24n+56
24n−31=24n+56
Step 2: Subtract 24n from both sides.
24n−31−24n=24n+56−24n
−31=56
Step 3: Add 31 to both sides.
−31+31=56+31
0=87
Answer:
There are no solutions.
Step-by-step explanation:
Quick I need help!!!
Answer:
-19
Step-by-step explanation:
Solve for x: 3x + 11 = 41
Answer:
x=10
Step-by-step explanation:
move all terms that don't contain x to the right side and solve.
What’s -4•3-6•5
And the dot is multiplication!
Answer:
-42
Step-by-step explanation:
I put it in a calculator
Answer:
-42
Step-by-step explanation:
the answer should use PEMDAS so it is -42
Which describes the role of oxygen in photosynthesis? A. It is a reactant, so it is released by the plant. B. It is a product, so it is released by the plant. C. It is a reactant so it enters the plant. D. It is a product, so it enters the plant.
Answer:
B) It is a product, so it is released by the plant.
Step-by-step explanation:
- Plants release oxygen for humans and humans give carbon dioxide to plants.
- The role of oxygen in photosynthesis is a waste product.
Answer: The oxygen gas is a product, so it is released by the plant.
Explanation:
Photosynthesis is defined as the process by which the producers make glucose with the help of carbon dioxide and water in the presence of sunlight.
The chemical equation representing this reaction follows:
In the above reaction, oxygen gas is written on the product side. So, it is formed by the plant and is released.
Hence, the oxygen gas is a product, so it is released by the plan.
1,500,000,000 in standard notation
What is the range & domain of the set
{(−6, 14), (10, 19), (4, -9), (3, 2), (6, −13)}
Answer:
The domain is {-6, 3, 4, 6, 10}
The range is {-13, -9, 2, 14, 19}
Step-by-step explanation:
Any set of ordered pairs has a domain and a range
The domain is the values of x-coordinates of all ordered pairs
The range is the values of y-coordinates of all ordered pairs
∵ The set is {(-6, 14), (10, 19), (4, -9), (3, 2), (6, -13)}
∵ x-coordinates of all points are -6, 10, 4, 3, 6
→ These values are the domain of the set
∴ The domain is {-6, 3, 4, 6, 10}
∵ y-coordinates of all points are 14, 19, -9, 2, -13
→ These values are the range of the set
∴ The range is {-13, -9, 2, 14, 19}
Sara can drive 240 miles in 6 hours. How many miles can she drive in 1 hour?
Answer:
40 miles in an hour
Step-by-step explanation:
240/6 = 40/1