Add.
–13 + (–8)
A.
–21
B.
–5
C.
5
D.
21
Two students, Ann and Max, factored the trinomial 4x2 − 6x − 4. Ann factored it as 2(x − 2)(2x + 1) and Max factored it as (x − 2)(4x + 2). Indicate which student factored the trinomial completely and which student did not, and explain why.
Solve.
−1.5x−3.1<5.5
North America burned 4.5 x 1016 btu of petroleum in 1998. At this rate, how many BTU's will be burned in 9 year?
Follow below steps;
If North America burned 4.5 x 1016 BTU of petroleum in 1998, this rate of consumption can be used to calculate the amount of BTU burned over 9 years. To find the total BTU usage over 9 years, we simply multiply the annual consumption rate by 9.
Annual BTU consumption: 4.5 x 1016 BTU
Consumption over 9 years: 4.5 x 1016 BTU/year * 9 years = 40.5 x 1016 BTU
This calculation shows that North America would have burned a total of 40.5 x 1016 BTU of petroleum over a period of 9 years if the consumption rate remained consistent.
The temperature outside is 0 degrees F. If the temperature drops 14 degrees, what was the overnight low temperature?
The overnight low temperature was -14 degrees F, calculated by subtracting the temperature drop from the initial temperature.
Explanation:In the context of determining the overnight low temperature, it's essential to consider the initial temperature and the subsequent change. In this specific scenario, the starting point is a temperature of 0 degrees Fahrenheit. However, as the night progresses, the temperature experiences a decrease of 14 degrees.
To pinpoint the overnight low temperature, we employ a straightforward subtraction method. By subtracting the amount of change, which is 14 degrees, from the initial temperature of 0 degrees Fahrenheit, we arrive at the final result of -14 degrees Fahrenheit.
This calculation demonstrates the mathematical approach to determining temperature variations, which is especially pertinent in weather forecasting and climatology. It showcases how understanding temperature fluctuations and changes is crucial for assessing climatic conditions and their impact on various aspects of daily life and scientific research.
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can someone please help me
a newspaper has 80 Pages if 20 of the 80 pages are devoted to advertising what percent of the newspaper is advertising
choose the compatible numbers that will give the best estimate for 589/58
Answer:
what he said
Step-by-step explanation:
.6 is ten times as much as
Answer: 0.6 is ten times as much as 0.06
Step-by-step explanation:
We are given a statement:
0.6 is ten times as much as
Let the number be considered as 'x'
'Times' in the above statement means multiplication operation.
So, the equation for the given statement becomes:
[tex]0.6=10\times x[/tex]
To solve the value of 'x', we shift the number '10' to other side of the equation and operation applied will be division.
Solving the above equation, we get:
[tex]0.6=10\times x\\\\x=\frac{0.6}{10}=0.06[/tex]
Hence, 0.6 is ten times as much as 0.06
Two feet is what percent of one yard
Amultivitamin tablet contains 16.5 mg calcium.How much calcuim does a bottle of 20 tablet contain?
Jack is mixing a cleaning solution that is 12% bleach. After mixing the solution, Jack has 150 ounces of cleaning solution. How many ounces of bleach did Jack use.
Fencing costs $10.15/ft. A customer purchases 8 3/8 ft of fencing for his yard. How much did the customer pay for the fencing? Round to the nearest cent.
How are points graphed on a coordinate plane?
How long would it tak a bus traveling 50 km/h to travel 125 km?
Answer: It will take the bus 2.5 hours to travel 125km at 50km/h.
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given.
Speed: 50km/h Distance: 125kmSo, to find the time we have to divide the distance by the speed:
We have to apply: time = distance/speed
Replacing with the values given:
Time = 125 / 50 = 2.5 hours
It will take the bus 2.5 hours to travel 125km at 50km/h.
Feel free to ask for more if needed or if you did not understand something.
What is the axis of symmetry of h(x)=5x2+40x+64
Answer:
x = -4.
Step-by-step explanation:
As we have the standard form of a parabola, that is [tex]ax^2+bx+c[/tex] the axis of symetry will be the line [tex]x = \frac{-b}{2a}[/tex]. In this case we have that a = 5, b = 40 and c = 64. Then the axis of symtery is
[tex]x = \frac{-40}{10} = -4[/tex].
A paddle boat can move at a speed of 14 km/h in still water. The boat is paddled 4 km downstream in a river in the same time it takes to go 2 km upstream. What is the speed of the river?
We want to partition 100 mL into 10 equal parts. ow many milliliters should we pour in each cup?
If we want to divide 100 mL into 10 equal parts we have to pour 10 mL into each cup.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
We'll apply division by Splitting into equal halves or groups, the division may be used to decide how to distribute a dish of cookies evenly among a group.
It is given that we want to divide 100 mL into 10 equal parts,
Suppose x milliliters should we pour into each cup,
x = Total volume / Number of cups
x = 100 mL / 10
x =10 mL
Thus, if we want to divide 100 mL into 10 equal parts we have to pour 10 mL into each cup.
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∠C
and
∠D
are vertical angles with
m∠C=−2x+90
and
m∠D=x−30
.
What is
m∠D
?
m∠C=m∠Dx=−3x+804x=80x=20
m∠C=x∘=20∘
Can someone solve this fast , for 20 points
A supermarket had bags of red grapes for $27.09 for 7. They also had bags of green grapes priced at $14.96 for 4. Which type of grapes is most expensive
Round 12,909 to the nearest hundreds
Kendra and her horse completed barrel racing course in 15.839 seconds what is the number rounded to the nearest tenth
Answer:
The number rounded to the nearest tenth is 15.8.
Step-by-step explanation:
Kendra and her horse completed barrel racing course in 15.839 seconds.
So, the number rounded to the nearest tenth or 0.1 is 15.8 because the number next to 8 is 3, it will not make eight '9' .
Hence, the number rounded to the nearest tenth is 15.8.
strawberries cost $2 per pound and gets 20% discount on the total cost. How much does Kate pay for the strawberries?
0645 to 0800is how many minutes
A miner descended 1400 feet into a mine from the mine's entrance. While in the mine, he then rose 800 feet and then descended 450 feet. What was the miner's net gain or loss in altitude from the entrance of the mine?
descended would mean he was -1400 feet from the entrance
he then rose 800 feet so
-1400 + 800 = -600 feet
he then went down 450 feet
-600 - 450 = -1050 feet
net loss was 1050 feet
The opposite of three times a number is more than 48. What are the possible values of the missing number
Convert 4500 feet per second to miles per hour. 5280 ft = 1 mi Round to the nearest hundredth.
Answer: [tex]3068.18\text{ miles per hour}[/tex]
Step-by-step explanation:
We know that 1 hour = 60 minutes
1 minute = 60 seconds
Then by Unitary method , 1 hour=[tex]60\times60=3600\text{ seconds}[/tex]
Also, 5280 ft = 1 mi
Given speed = 4500 feet per second
To convert it into miles per hour. we divide it by 5280 and multiply it by 3600 we get
[tex]4500\times\dfrac{3600}{5280}\\\\=3068.18181818\approx3068.18\text{ miles per hour}[/tex]
Hence, the correct answer = [tex]3068.18\text{ miles per hour}[/tex]
Monyne created a map of her neighborhood.She colored in the distance from her school to her house and wrote on the map that the distance was 0.7 of a mile. Write the distance between Monyne's house and her school as a fraction.
how many groups are of sixty are in two hundred forty four