Answer:
B
Step-by-step explanation:
Atomic number is equal to the number of protons in an atom.
-12x2 – 16x
Help me with this please
Answer:
-4x(3x+4)
Step-by-step explanation:
You have to undo the problem, I will show you how this problem looks if you solve it (the answer i guess? id.k it is hard to explain any other way)
So first we use distributive property-
-4x *3x=-12x^2
-4x*4=-16x
-12x^2-16x And now we have the problem we started with!
Answer:
its -4x(3x+4)
Step-by-step explanation:
What's the circumference of a
circle with a diameter of 31 inches?
Use 3.14 for pi.
Answer:
circumference = 97.34
Step-by-step explanation:
circumference = diameter x Pi
31 x 3.14 = 97.34 inches
The circumference of the circle with a diameter of 31 inches is approximately 97.34 inches.
The circumference of a circle can be calculated using the formula C = πd, where C represents the circumference and d represents the diameter of the circle.
Given that the diameter of the circle is 31 inches, we can substitute this value into the formula:
C = 3.14 * 31
C ≈ 97.34 inches
Therefore, the circumference of the circle with a diameter of 31 inches is approximately 97.34 inches.
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A piece of ribbon is 1 metre in length. Sasha cuts of some of the
ribbon. The ribbon is now 40 cm in length.
What is the percentage change of the ribbon?
Answer:
high jatdog
Step-by-step explanation:
napaka pogi ko ayieeeecan someone please help me
when the cube root of a positive number “n” is squared, the result is 5, what is the value of “n”?
A) 2.9
B) 3.8
C) 11.2
D) 25.0
E) 42.7
type out explanation for brainliest :)
Answer:
A)2.9 is the value of "n".
You are offered a job that pays $41,000 during the first year, with an annual increase of 7% per year beginning in the second year. That is, beginning in year 2, your salary will be 1.07 times what it was in the previous year. What can you expect to earn in your fourth year on the job? Round your answer to the nearest dollar.
Answer:
50227
Step-by-step explanation:
hey saben cuanto es -2x+2x es que me confundo mucho
find the measure of this angle in the triangle
PLEASE HELP this is the last question and im having trouble solving it!
I-ready
Answer:
85.....?................
help me 20 points, please
Hans opens a circular window that is 3.5 feet across at its widest point. What is the circumference of the window to the nearest whole number? Use 3.14 for π. help pls
Answer: 11
Step-by-step explanation:
i did 3.5 x 3.14 = 10.99 and rounded to the nearest whole number, 11.
The circumference of the circular window to the nearest whole number is 11 feet.
What is a circle?A circle is a two-dimensional figure with a radius and circumference of 2pir.
The area of a circle is pir^2.
We have,
To find the circumference of the circular window, we need to use the formula:
C = πd
where C is the circumference, π is the constant pi, and d is the diameter of the circle.
Since the window is 3.5 feet across at its widest point, the diameter of the circle is also 3.5 feet.
Plugging in the value of the diameter in the formula, we get:
C = πd
C = 3.14 x 3.5
C = 10.99
Rounding the result to the nearest whole number, we get:
C ≈ 11 feet
Therefore,
The circumference of the circular window to the nearest whole number is 11 feet.
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Function or not a function?
Answer:
Function
Step-by-step explanation:
(-2,2)(-1,2)(0,0)(1,-2)(2,1) the x does not repeat so it is a function
Q: Simplify.
1. 3^(n+1) - 3^n / 3^(n-1)
Answer:
3^(n+1) - 3^n / 3^(n-1) = 6
In a family expenditure on food and education are in the ratio3:5.If expenditure education is Rs7000, find the expenditure on food.
Answer:
3×7000:5×X
21000:5X
so X= 4200
So expenditure on food will be Rs4200
16. Jason purchased a used vehicle that depreciates under a straight-line method. The initial value of the car is $5000, and the salvage value is $500. If the car is expected to have a useful life of another 5 years, what will its value be in 1 year?
Answer
1,500? I think any way.
Step-by-step explanation:
5,000 divided by 5 = 1,000
1,000 + 500 = 1,500
Answer:
1,500
Step-by-step explanation:
and jeez the other kid was just having fun
simplify √-48
-4√3
4√-3
4i√3
4√3i
Answer:
√-48=4i√3
Step-by-step explanation:
because negative number never has a real root so 1st and 2nd option r out . i^2= -1 so root and Square cuts out eachother so i should be out of the root hence option 4th is also cut out. so 3 rd is correct.
Tom drives 200 miles in 4 hours, he drives the first 32 miles at an average speed of 64mph, work out his average speed for the rest of the journey.
Answer: Tom's average speed for the rest of the journey = 48mph
Step-by-step explanation:
Total distance driven = 200 miles
total time taken = 4hours
first 32 miles , he drove at an average speed of 64mph, To find the amount of time taken for the first 32 miles,
We Use the formulae
Speed = distance / time
Time = Distance / speed
=32/64 = 1/2 =0.5 hours
The remaining distance = Total distance covered - first 32 miles covered
= 200 -32= 168 miles
The remaining time for rest of journey = Total time taken - time covered in the first 32miles
4hours - 0.5 hours
=3.5 hours
Therefore Average speed for the rest of the journey = Distance for the remaining journey/ remaining time
168miles/ 3.5hours = 48mph
I can never understand these someone please help
Answer:
145) A
146) C
147) B
148) D
Step-by-step explanation:
_____________________145_____________________
Starting with number 145 it mentions that XY = 24 and XY:YZ = 1:2.
XY:YZ means ratio of XY over YZ so for each 1 XY there is 2 YZ.
Moving on and taking note that XY=24 so this means that,
[tex]\frac{XY}{YZ} =\frac{24}{YZ}= \frac{1}{2}[/tex]
Solving the above expression by cross multiplying 24x2 will give you YZ = 48. The same method applies to #146 and #148 the next questions.
_____________________146_____________________
YZ = 9 and XY:YZ=2:3
[tex]\frac{XY}{YZ} =\frac{XY}{9} =\frac{2}{3}[/tex]
XY= (2x9)/3 = 6
XY = 6
_____________________147_____________________
Given:
XZ = 2ft
YZ = 18in
In this question, you will have to refer to the proportion line given above the questions. It mentions that XZ = 2ft (which is the whole line) and YZ = 18in (which is from Y to Z). Take note that the units are not the same.
They're looking for XY which is the only unknown length in the given proportion line. To get XY you'll have to subtract XZ - YZ, but the units are not the same so you'll have to convert feet to inches since the answer options are given in inches.
Convert 2ft to inches:
To convert from feet to inches you'll have to multiply by 12 so 2x12 = 24.
Therefore, XZ = 24in
Now we subtract:
XZ - YZ = XY
24 - 18 = 6in
_____________________148_____________________
YZ = 1ft
XY: YZ = 1:4
YZ is given in feet and the answers are provided in inches so we'll have to convert.
1 x 12 = 12in
YZ = 12in
[tex]\frac{XY}{YZ} =\frac{XY}{12} =\frac{1}{4}[/tex]
XY = (1x12)/4 = 3in
I also really need help with this question.
Answer:
The answer would be -12
Step-by-step explanation:
I hope this helps! Have an awesome day.
Answer:
-12
Step-by-step explanation:
Conver mixed number fractions into inproper fractions
[tex]\frac{-11}{2} - \frac{37}{4} + \frac{11}{4}[/tex]
Set common dinominators
[tex]\frac{-22}{4} - \frac{37}{4} + \frac{11}{4}[/tex]
Simplify
[tex]\frac{-48}{4}[/tex] = -12
Two consecutive integers do the the square root 45 lies
Answer:
square root 45 lies between 6 and 7
Step-by-step explanation:
I hope it's helpful!
Answer:
6 and 7
Step-by-step explanation:
Consider the perfect squares on either side of 45, that is
36 < 45 < 49 , then
[tex]\sqrt{36}[/tex] < [tex]\sqrt{45}[/tex] < [tex]\sqrt{49}[/tex] , that is
6 < [tex]\sqrt{45}[/tex] < 7
Emily drinks 6 cups of water every day, while Jackie drinks 8 cups of water every day. Which graph represents the total amount of water consumed by Emily and Jackie over a 4-day period?
Answer:
6 12 18 24
___________
8 16 24 32
how many solutions does x=-2 have
Answer:
One solution
Step-by-step explanation:
In a one- variable equation has infinitely many solutions when solving results in a true statement, such as 2=2
In a one- variable equation has one solution when solving results in one value for the variable, such as x = 5
In a one - variable equation has no solution when solving results in an untrue statement, such as 2=3
So, in this case the result x = -2 belongs to the 2nd sentence where it says one solution.
Hope this helps :)
If MNOP is an isosceles trapezoid, MP = 16x - 13, NO = 9x + 8, PN = 5y + 19, and
MO = 12y - 37
What is the measure of segment NP?
Answer:
59
Step-by-step explanation:
The diagonals of an isosceles trapezoid are equal.
MO and NP are diagonals. Therefore MO = NP
12y - 37 = 5y + 19
7y = 56
y = 8
MO = 12(8) - 37 = 96 - 37 = 59
NP = 5(8) + 19 = 40 + 19 = 59
7 units are the measurement of the segment NP.
What is a polygon?In Mathematics, a polygon can be defined as a two-dimensional geometric figure that consists of straight line segments and a finite number of sides. Additionally, some examples of a polygon include the following:
• Triangle
• Quadrilateral
• Pentagon
• Hexagon
• Heptagon
• Octagon
• Nonagon
Generally speaking, the measure of the angle at the center of a regular polygon is equal to 360 degrees. Therefore, the smallest angle of rotation that maps (carries) a regular polygon onto itself can be calculated by using this formula:
α = 360/n
Since MNOP is an isosceles trapezoid, the non-parallel sides MN and OP have the same length. Therefore, we can set up an equation using the given lengths of the sides:
MP = NO
Substituting the given expressions for these lengths, we get:
16x - 13 = 9x + 8 + 5y + 19
Simplifying and rearranging terms, we get:
7x - 5y = 36 ........(1)
Similarly, we can set up another equation using the given lengths of the diagonals MO and PN:
MO + PN = MP + NO
Substituting the given expressions for these lengths, we get:
12y - 37 + 5y + 19 = 16x - 13 + 9x + 8
Simplifying and rearranging terms, we get:
17y - 16x = 42 ........(2)
Now, we have two equations (1) and (2) with two variables (x and y). Solving this system of equations, we get:
x = 7, y = 9
Substituting these values back into the given expressions for PN and NO, we get:
PN = 5y + 19 = 5(9) + 19 = 64
NO = 9x + 8 = 9(7) + 8 = 71
Therefore, the measure of segment NP is:
NP = NO - PN = 71 - 64 = 7
So, the measure of segment NP is 7 units.
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A map has a scale of
1.5 inches : 200 miles. If
Miami and Chicago are 9
inches apart on the map,
what is the actual distance
between the two cities?
Answer:
1200 miles apart for the two cities
Tamara feeds her cat 1/8cup canned food each day and the
rest dry. She also gives her cat one treat a day. How much
dry food does Tamara feed her cat in a week? 3/8 cup of per day
4. MP.2 Reasoning What quantities are given in the problem
and what do the numbers describe?
cup of food pes
5. MP.1 Make Sense and Persevere What do you need
to find?
Do not copy Faroquem9’s work I just used it to answer your question and also I just used it as a example and wrote it on my own way so don’t copy it use it as a example and write it on your own way or answer it on your own way
AND THIS IS NOT MY WORK IT IS Faroquem9’s work..
Plz help me I need a good person to help plz plz
Answer:
True
Step-by-step explanation:
Thhe answer to this is true
How do you write 8.0 as a percentage?
Answer:
8.0%
Step-by-step explanation:
Answer:
maybeeee 800%???
Step-by-step explanation:
-11 2/3 x (-4 1/5) HELPPPP!!!
Answer:
49
Step-by-step explanation:
(−11 2/3)(−4 1/5)
= (-35/3) (-21/5)
= 49
Hope I helped!!
...............................
Answer: Graphing is the best in this situation
Step-by-step explanation:
What is 11 divided by 5 as a fraction
11 divided by 5 is equal to the fraction 11/5, which can also be expressed as the mixed number [tex]2\frac{1}{5}[/tex] .
What is 11 divided by 5 as a fraction?To convert the division of 11 by 5 into a fraction, we can express it as a ratio of two integers. Here's how we can derive the fraction:
When we divide 11 by 5, we get a quotient of 2 with a remainder of 1. So, we can write the division as:
11 ÷ 5 = 2 + 1/5
Since 2 is a whole number, we can express it as a fraction with a denominator of 1:
2 = 2/1
Now, we can rewrite the division using the same denominator:
11/5 = 2/1 + 1/5
To combine the fractions, we need a common denominator. The least common multiple (LCM) of 1 and 5 is 5. Therefore, we can multiply the fractions by appropriate values to make their denominators equal to 5:
11/5 = (2/1) × (5/5) + (1/5) = 10/5 + 1/5
Now that the denominators are the same, we can add the fractions:
11/5 = (10 + 1)/5 = 11/5
Therefore, the division of 11 by 5 can be expressed as the fraction 11/5.
The fraction 11/5 represents the result of dividing 11 into 5 equal parts. Each part would be equal to 11/5. It can also be simplified to a mixed number as 2 1/5, where the whole number part is 2 and the fractional part is 1/5.
So, 11 divided by 5 is equal to the fraction 11/5, which can also be expressed as the mixed number 2 1/5.
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The sail on a souvenir boat is similar in shape to the sail on a sailboat. The sail on the sailboat is in the shape of a right triangle with a base of 9 feet and height of 24 feet. The height of the souvenir's sail is 3 inches. What is the base of the souvenir's sail
Answer:
1 1/8 inches.
Step-by-step explanation:
As the sails are similar, corresponding sides are in the same ratio, so we have the equation
:24/3 = 9/b where b = base of the souvenir boat.
Cross multiply:
24b = 9*3
b = 27/24
= 1 1/8 inches.
Based on the shape of the souvenir and dimensions of boat, the base of the souvenir's sail is 1.125 inches
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
WE need to find the base of the souvenir sail.
Given that sail on the souvenir boat has the same shape as the sail on the sailboat. Which means that; they can be used to find each other's dimensions based on a scale factor.
The height of the sailboat = 24 feet.
The height of the souvenir boat's sail = 3 inches.
The scale is:
= 24 / 3
= 8
Then for every inch on the souvenir boat's sail, the sailboat is 8 feet.
The base of the souvenir boat sail;
= 9 / 8
= 1.125 inches
Hence, Based on the shape of the souvenir and dimensions of boat, the base of the souvenir's sail is 1.125 inches
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