Answers
Answer:
5.5
Step-by-step explanation:
2x+7=16
-7 -7
2x=11
2x/2=11/2
x=5.5
Related Questions
What is the product of a+3 and −2a2+15a+6b2?
−2a3+9a2+45a+24b2
−2a3+21a2+45a+24b2
−2a3+9a2+45a+6ab2+18b2
−2a3+21a2+45a+6ab2+18b2
Answers
Answer:
-2a³ + 9a² + 6ab² + 45a + 18b²Step-by-step explanation:
(a + 3)×(−2a² + 15a + 6b²) =
= a×(−2a² + 15a + 6b²) + 3×(−2a² + 15a + 6b²) =
= -2a³ + 15a² + 6ab² - 6a² + 45a + 18b² =
= -2a³ + 9a² + 6ab² + 45a + 18b²
The product [tex](a+3) * (-2a^2+15a+6b^2)[/tex] is [tex]-2a^3+9a^2+ 45a +6ab^2 + 18b^2[/tex]
What is product?The product of numbers or expressions is gotten by multiplying them
The product expression is represented as:
[tex](a+3) * (-2a^2+15a+6b^2)[/tex]
Expand the expression
[tex]-2a^3+15a^2+6ab^2 -6a^2 + 45a + 18b^2[/tex]
Collect like terms
[tex]-2a^3+15a^2 -6a^2+ 45a +6ab^2 + 18b^2[/tex]
Evaluate the like terms
[tex]-2a^3+9a^2+ 45a +6ab^2 + 18b^2[/tex]
Hence, the product [tex](a+3) * (-2a^2+15a+6b^2)[/tex] is [tex]-2a^3+9a^2+ 45a +6ab^2 + 18b^2[/tex]
Read more about products at:
https://brainly.com/question/4344214
subtract 8xy+3 from 15xy +9
Answers
Answer:
7xy + 6
Step-by-step explanation:
=> here's your solution
=>. we need to subtract (8xy + 3) from
( 15xy +9 )
=> (15xy + 9) - ( 8xy + 3)
=>. 15xy + 9 - 8xy - 3
=> 15xy - 8xy + 9 - 3
=>. 7xy + 6
hope it helps
On a 24 hour digital clock displaying hours, minutes and seconds, how
many times in each 24-hour period do all six digits change
simultaneously?
Answers
Answer:
23 times. Last second of every hour.
On 24 hours, a digital clock displaying hours, minutes, and seconds all six digits change 23 times simultaneously.
Change of digits:The digits representing the seconds on the clock change for every second.
The minute digits change for each minute that is for every 60 seconds.
Similarly, the digits representing the hours on the clock change every 60 minutes.
This means that for all the six digits to change simultaneously, the last second must be such that it completes a minute, and the last minute should be such that it completes an hour.
This means that at the end of every hour, all the six digits change.
Which will happen 23 times for a 24 hours clock.
Learn more about digital clock:
https://brainly.com/question/12073969?referrer=searchResults
On a map of Arizona 2 inches represents 54 miles. The map distance from Yuma to Sentinel is 3 inches. What is the actual distance in miles between the cities?
Answers
Answer: 81 miles
Step-by-step explanation:
if 2 inches = 54miles then 1 inch is 27 miles because 54/2=27
so 3 inches means 3(27)=81 miles from yuma to sentinel
Find the solution set of the inequality
8x−8≤−72.
Answers
Answer:
x≤-8
Step-by-step explanation:
When solving 8x-8≤-72, first add 8 to both sides of the inequality.
This leaves you with 8x≤-64.
Divide both sides by 8: 8x/8 and -64/8
This leaves you with x≤-8 as your solution.
The time t required to do a job varies inversely as the number of people working. It takes 4 hr for 7 cooks to prepare the food for a wedding rehearsal dinner. How long will it take 8 cooks to prepare the dinner?
Answers
9514 1404 393
Answer:
3 1/2 hours
Step-by-step explanation:
If there are 8/7 times as many cooks, it will take 7/8 the amount of time. (That's what "inversely proportional" means.)
(7/8)(4 h) = 28/8 h = 3 1/2 h
It will take 8 cooks 3 1/2 hours to prepare the dinner.
If anyone can help and could you put the work as well
Answers
Answer:
there ya go bud hope this helps
Please tell me the answer!! I NEED IT NOW ILL GIVE 20 points PLEASE!!
Answers
Answer:
i pretty sure its the last one
Step-by-step explanation:
Answer:
what chu say?
Step-by-step explanation:
Product Rule states: keep the base the same and do this to the exponents. Your
A). answer
B). multiply
C). subtract
Answers
Answer: B multiply
Step-by-step explanation:
Dr. Howser recently purchased two new fish tanks (Tank A and Tank B) to place in the waiting area of his office. Each fish tank holds exactly 120 gallons of water. Tank A will hold small fish and Tank B will hold large fish. Dr. Howser plans on buying 3 small fish for every 10 gallons of water in Tank A. He plans on buying 6 large fish for every 40 gallons of water in Tank B.
Answers
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
A department store purchases screen-printed t-shirts at a cost of $5 per shirt. The store marks up the price 150% and puts them on the sales floor. Every month that a t-shirt doesn’t sell, the store reduces the selling price by 25%. What is the selling price of a t-shirt after one monthly markdown?
Answers
How many edge does the following shape have
Answers
Answer:
8
Step-by-step explanation:
Answer:
12 edges
Step-by-step explanation:
It might help to drag your finger along the edges in the image. Think about it as if you had to make this image out of sticks. How many sticks would you need to make a standing frame like this one?
12 sticks
what is x/4 -5> -4 .asdfasdfasdfa
Answers
Answer:
x/4 -5> -4
add 5 on both sides
x/4 > 1
multiply by 4 on both sides
x > 4
Step-by-step explanation:
LN
and
OQ
are parallel lines.
Which angles are corresponding angles?
Answers
sin x =
cos x =
tan x =
Answers
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
so Sin(x) = d/f
Cos(x) = e/f
Tan(x) = d/e
got it? :)
Answer: sin= d/f
cos= e/f
tan= d/e
Step-by-step explanation:
Which could be an appropriate description? (A. the circumference of a circle in square inches) (B. the lateral area of a cylinder in meters) (C. the rate of gasoline consumption in gallons) (D. the volume of a cone in cubic feet)
Answers
Answer:
(D. the volume of a cone in cubic feet)
Step-by-step explanation:
A should be inches, not square inches
B should be square meters, not meters
C should be miles per gallon (or KM per gallon), not just gallons
At Bike Shop X it costs $2.75 per hour plus a $3.00 deposit to rent a bike. At Bike Shop Z
it costs $1.75 per hour plus a $7 deposit to rent a bike. When would it cost less to rent a bike
from Bike Shop X? Explain.
Answers
Answer:
ok so you see that right away bike shop x is more cost than bike shop z so if you add 2.75 and 3 dollars it would cost 5.75 dollars of course the cost of 2.75 dollars is per hour so you would need to count 2.75 per hour and as you bike shop z the amount of cost per hour is 1.75 but the deposit fee is 7 dollars so the cost would be 8.75.
Step-by-step explanation:
Ok why it is lower cost because as you see each hour on shop x it is 2.75 and each hour in z shop it is 1.75 why z shop is lower because x shop have bigger cost per hour and that can add up more than z shop.
82% of what number is 492?
Answers
answer
600
Step-by-step explanation:
Step 1: If 82% of a number is 492, then what is 100% of that number? Setup the equation.
492/82%=Y/100%
Step 2: Solve for Y
Using cross multiplication of two fractions, we get
82Y = 492 x 100
82Y = 49200
Y=49200100=600
Find cos 0, where 0 is the angle shown.
Give an exact value, not a decimal approximation.
Answers
Answer:
8/17
Step-by-step explanation:
4) A dozen cookies cost $18.75. Twenty cookies cost $25.50. Which has the lower unit price?
ROUND YOUR ANSWER TO THE NEAREST HUNDREDTHS. *
Answers
Answer:
Twenty cookies deal
Step-by-step explanation:
A dozen cookies cost 18.75. A dozen is exactly 12. If you divide 18.75 by 12 you should get the unit price which is about $1.56 for each cookie. For 25.50 you just divide it by 20 and you should get about 1.20 which makes it a better deal.
3 in = 25 miles how far is 7.5 in
Answers
Answer:
62.5
Step-by-step explanation:
Answer:
75
Step-by-step explanation:
what is the volume of the prism
Answers
Answer:
36 unit cubed
Step-by-step explanation:
V = b * h * l
V = 6 * 3 * 2
V = 36
Kristy rides 6 miles on her bicycle in 40 minutes. Jax rides 4 miles on his bicycle in 30 minutes?
Answers
Which one of these represents the graph in this picture right here ? A,B,C,D,E or F?
PLEASE HELP
Answers
Answer:
A) y=3x+1
Step-by-step explanation:
Use the formula y=mx+b
m is the slope and b is the y intercept
the graph starts on 1 on the y axis so you replace 1 for b
the slope goes up 3 and over one, giving the fraction 3/1 or just 3. so you replace 3 for m.
Solve for X and represent solution graphically 5x+2<x+7
Answers
Answer:
x< 5/4
Step-by-step explanation:
Find the distance d between 21 = (-7 - 6i) and Z2 = (-15 – 12i). Express your answer in exact terms and simplify, if needed.
Answers
Answer:
10
Step-by-step explanation:
The distance is equal to the modulus of Z1-Z2.
[tex]Z_1 - Z_2 = -7 - 6i - (-15 - 12i) = 8 + 6i\\|8 + 6i| = \sqrt{8^2 + 6^2} = \sqrt{64 + 36} = \sqrt{100} = 10[/tex]
Which of the following ordered pair could NOT be included in this set if it is a function?
{(-4, 2), (3, 6), (4,3), (x, y) }
A (x, y) = (-3, 6)
B (x, y) = (1, 2)
C (x, y) = (3,6)
D (x, y) = (4, -3)
Answers
Answer:
B is the right answer and if you add
could someone give me the equation? no need to solve
Answers
Answer:
I think the equation would be 345 = 121 + p
A search and rescue drone can scan 0.5 hectare in 2 minutes. How many hectares per minute can the drone scan? 5/10 ha | 2 min = 5/10×2/1 yes or no
Answers
Answer:
Drone will take 0.25 hectare per minute to scan the area.
Step-by-step explanation:
By using unitary method,
A search and rescue drone takes 2 minutes to scan the area = 0.5 hectare.
Area scanned by the drone in 1 minute = [tex]\frac{\text{Total area scanned}}{\text{Total time taken}}[/tex]
= [tex]\frac{0.5}{2}[/tex]
= 0.25 hectare per minute
Therefore, drone will take 0.25 hectare per minute to scan the area.
pls help !!
For the triangle shown below, complete the following table.
Note: Use slash (/) to separate numerator and denominator
sin A
sin C
cos A
cos C
Answers
Answer:
Cos=C
Step-by-step explanation:
Fax cause triangle=45 angle so 45/5=8