Answer:7.956
Have a good day
Step-by-step explanation:
Answer:
7.956
Step-by-step explanation:
10.2*0.78 can be rewritten as 102*78*0.001. I'd split this even further, since I'm doing it in my head, into (100*78+2*78)*0.001. One step at a time.
100*78=7800
2*78=140+16=156
7800+156=7856+100=7956
7956*0.001=7.956, which is the answer, and is confirmed by a calculator
What is the value of x in the equation x*3 = 27 512 ?
Which of the following is a trinomial with a constant term?
Evaluate the expression 2c-4d if c = 8 and d - -5
-4
16
36
3
Answer:
The answer is 36
Step-by-step explanation:
=16-4(-5)
=16-(-20)
=36
8.) Henry's MP3 player has 512MB of memory.
He has already downloaded 287MB and will
continue to download m more megabytes.
Write and solve an inequality that shows how
many more megabytes he can download.
Answer:
Henry can download at most 225 MB more.
Step-by-step explanation:
The capacity of Henry's MP3 player is 512MB. He has downloaded 287MB and will continue to download m more megabytes.
Since the capacity of the player is 512MB. The used memory plus 287MB cannot be greater than 512MB, thus the inequality that shows how many more megabytes he can download are:
m + 287 ≤ 512
Solving:
m ≤ 512 - 287
m ≤ 225
Henry can download at most 225 MB more.
Select the correct answer from each drop-down menu.
50°
45°
52
In the figure, x=, y=, and z=
Answer: The answer is actually non of the above, y and z are not acute, they are higher that 90 degree angles. x is an 90 degree angle. so x=90 y=142 z=128
Step-by-step explanation:
Answer:
x=95 y=118 z=147
Step-by-step explanation:
Which is NOT a common denominator for 23 and 12 ?
A. 18
B. 12
C. 6
D. 3
Answer:
All of the choices are not a common denominator…
Step-by-step explanation:
23 can be divided into all of the choices, but it does not come out even. If there is a choice that is all of them, that's the answer!!
Good luck and have an amazing day! C:
The bar graph shows the elevations (in feet) of several lakes in North America. (Note: The Salton Sea is actually a lake located in California.) Michelle claims that Lake Pontchartrain and Lake Okeechobee are the two lakes closest to sea level. Explain why Michelle’s reasoning is incorrect? Provide the correct answer. Use appropriate mathematical language to justify your response. *
Answer:
c
Step-by-step explanation:
c because its c
Which equation correctly applies the distributive property?
−1.5⋅(6⋅1.25)=(−1.5⋅6)⋅1.25
70+2.028=(70⋅2)+(70⋅0.02)+(70⋅0.008)
(0.7⋅0.7)+(0.7⋅0.9)+(0.7⋅0.2)=0.7⋅(0.7+0.9+0.2)
−2.5⋅0.6⋅5.8=−2.5⋅5.8⋅0.6
i dont know ethrreer
Step-by-step explanation:
Answer:
Step-by-step explanation:The distributive property dictates that:
a(b + c) = ab + ac
Thus,
(0.7 x 0.7) + (0.7 x 0.9) + (0.7 x 0.2)
= 0.7(0.7 + 0.9 + 0.2)
follows the distributive property. The third option is correct.
in grade six class, of the pupils are boys and the number of pupils are 180.Find the number girls?
Answer:
i could of work it but u didnt put how much pupils are boys ,i dont know if your not suppouse to put it .
Step-by-step explanation:
but if there was a number for boys .
subbtract 180 by the amount of boys and the remaining are the girls
The graph represents the relationship between the cost of renting a trailer y for x hours,, please help
Answer:
The relationship is not proportion because the value of [tex]\frac{y}{x}[/tex] is not equivalent for each point in the relationship ⇒ C
Step-by-step explanation:
The relationship between x and y are proportional if [tex]\frac{y}{x}[/tex] = k, where k is a constantThe proportional relation represented graphically by a line passes through the origin pointLet us use the information, above to solve the question
→ From the given graph
∵ The coordinates of the points are (1, 10), (2, 20), (4, 25), (6, 40)
∵ The equation of proportion is [tex]\frac{y}{x}[/tex] = k
→ Let us check if all the points satisfy the equation or not
∵ x = 1 and y = 10
∴ [tex]\frac{10}{1}[/tex] = k
∴ 10 = k
→ Check the other points if they give the same value of k or not
∵ x = 2 and y = 20
∴ [tex]\frac{20}{2}[/tex] = k
∴ 10 = k
∵ x = 4 and y = 25
∴ [tex]\frac{25}{4}[/tex] = k
∴ [tex]\frac{25}{4}[/tex] = k
∵ x = 6 and y = 40
∴ [tex]\frac{40}{6}[/tex] = k
∴ [tex]\frac{20}{3}[/tex] = k
∵ Not all points satisfy the same value of k
∴ The relation does not represent a proportional relation
The relationship is not proportion because the value of [tex]\frac{y}{x}[/tex] is not equivalent for each point in the relationship.
Suppose the function E(c) represents the earnings of a volleyball team from selling cupcakes. Describe an appropriate domain of this function. Include a description of the kinds of numbers in the domain as well as any limitations on their values.
Answer:
When we have a function y = f(x) we define the domain as the set of the values of x, and the range as the set of the values of y.
In this case we have the function:
E(c) where c represents the number of cupcakes sold by the team.
In this case, the domain will be the possible values that c can take.
The restrictions are:
c ≥ 0.
They can not sell a negative number of cupcakes.
c must be an integer because they can not sell a 0.342 of a cupcake, so the domain is discrete.
c may have an upper limit (for example, if they made 500 cupcakes, they can not sell more than 500) But we do not know any upper limit, so we can ignore this restriction.
Then we can define the domain as:
D = {0, 1, 2, 3, ...}
1/3 (1/2x -9) = 1/2 ( x + 18)
1/6x -3 = 1/2 +9
1/4x -3 =9
1/4x =12
x=48
What mistake was made in the problem ?
Answer:
1/6x - 1/2x does not equal 1/4. They made a mistake in the second to third line.
Step-by-step explanation:
It should have been -1/3x - 3 = 9, which gives you x = -36.
1/6 - 1/2 = 1/6 - 3/6 = -2/6 = -1/3
The mistake is in the third step, the subtraction was done without taking LCM. The value of x is -36.
What is simplification?The numerical expression having two or more operations can be simplified by using ‘BODMAS’ rule, where the letters B, O, D, M, A, S stand for Brackets , orders (powers/indices or roots) , Division, Multiplication, Addition and Subtraction respectively.
For the given situation,
The expression is 1/3 (1/2x -9) = 1/2 ( x + 18).
We need to simplify the expression to find the mistake done by them.
⇒ [tex]\frac{1}{3}(\frac{1}{2}x-9 ) = \frac{1}{2}(x+18)[/tex]
⇒ [tex]\frac{1}{6}x-3 = \frac{1}{2}x+9[/tex]
⇒ [tex]\frac{1}{6}x-\frac{1}{2}x = 9+3[/tex]
⇒ [tex]\frac{-2x}{6}=12[/tex]
⇒[tex]\frac{-1}{3}x=12[/tex]
⇒ [tex]x=-36[/tex]
Hence we can conclude that the mistake is in the third step, the subtraction was done without taking LCM. The value of x is -36.
Learn more about simplification here
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The distance from El Paso Texas to Houston
Texas is approximately 746 miles. If you
have already traveled 296 miles and you plan
on driving at a constant rate of 75 miles per
hour, how long will it take to get to Houston?
Answer:
It will take 6 hours to get to Houston.
Step-by-step explanation:
We have a total distance:
[tex] d_{T} = 746 mi [/tex]
And, the distance traveled is:
[tex] d = 296 mi [/tex]
The plan is driving at a constant rate of 75 mi/h, so the time to get to Houston is:
[tex]t = \frac{x}{v}[/tex]
Where:
[tex] x = d_{T} - d = 746 mi - 296 mi = 450 mi [/tex]
[tex]t = \frac{x}{v} = \frac{450 mi}{75 mi/h} = 6 h[/tex]
Therefore, it will take 6 hours to get to Houston.
I hope it helps you!
y2 +4y+1
; y = -2 .
y2-1
Step-by-step explanation:
y2+4y+1=0. where, y=-2
(-2)2+4(-2)+1
-4-8+1=0
-12+1=0
-11=0
The side lengths of the square (4ft) are enlarged by a scale factor of 3. What will be the area of the new square?
Answer:
144 ft
Step-by-step explanation:
start with the sides and multiply by 3. that is 12. and to find the area of a square is to multiply 2 of it's sides meaning 12×12=144
Write a function in any form that would match the graph shown below.
Answer:
f(x) = -(x+3)(x-4)
f(x) = -[tex]x^{2}[/tex]+x+12
Step-by-step explanation:
The equation of the parabola is y = -(x + 3) (x - 4).
What is parabola?In mathematics, a parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped.
Given that a graph of a parabola, we need to find the equation of the parabola,
Intercept form equation of the parabola:
y = a(x - p) (x - q), x-intercepts are (-3, 0) and (4, 0).
x = -3 ------ x + 3 = 0
x = 4 ------- x - 4 = 0
y = a(x + 3) (x - 4)
It passes through (0, 12). Substitute (x, y) = (0, 12)
12 = a(0+3)(0-4)
12 = -12a
a = -1
Intercept form equation of the parabola:
y = -(x + 3) (x - 4)
Hence, the equation of the parabola is y = -(x + 3) (x - 4).
Learn more about parabola, click;
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Line k is parallel to line l /which angle is congruent to <4?
Answer:it’s A
Step-by-step explanation: Ik it’s A
Solve s = n(a + 1) for a
Answer:
s/n -1= a
Step-by-step explanation:
s= n(a+1) (Given)
s/n = a+1 (Division)
s/n -1 = a (Subtraction)
s/n -1 = a - Answer
Answer:
Step-by-step explanation:
Please help, which expression is equivalent to....
Answer:
a
Step-by-step explanation:
Explain! For reward!
Answer:
32 times
Step-by-step explanation:
If you can go around 54 times for $12, then you multiply the amount of money you pay by four to get the number of times you can go around the track.
Hope this helps! Please mark Brainliest!
Answer:
I would say 36 because 54 times 8 is 432 and if you divide that by 12 you get 36.
Step-by-step explanation:
Este plzzz.
Encuentra el area superficial de un cubo si la media de cada lado es 5.7cm. Da la respuesta al centimetro cuadrado mas cercano.
Answer:
La superficie es 194.94cm cuadrados
Step-by-step explanation:
¡Espero que esto ayude!
¡Por favor marque el más inteligente!
What is the value of x
Answer:
Do you have a picture of it?
Step-by-step explanation:
please help me
Solve for x.
a) 30
b) 27
c) 33
Answer:
x = 27
Step-by-step explanation:
The angle at any point on a straight line is 180 degrees.
The middle line over there is creating a right angle which is 90 degrees.
This must mean that both sides are 90 degrees.
3x+9 = 90
3x = 81
x = 27
You practice playing your guitar every day. You spend 15 minutes practicing chords and the rest of the time practicing a new song. So the total number of minutes y you practice for the week is given by y=7(15+x), where x is the number of minutes you spend on practicing a new song. Solve the equation for x.
Answer:
x=(y-105)/7Step-by-step explanation:
Given that the total time taken to practice is given by the expression as
y=7(15+x)
Simplifying the expression we have
y=105+7x
Solving for x (that is making x subject of formula we have)
7x=y-105
Divide both sides by 7 we have
x=(y-105)/7
Therefore the expression is
x=(y-105)/7
Rhianna was doing research for a report about the highest mountains in the United States. She read that the Grand Teton in Wyoming is about 1.37 × 104 feet high. How should Rhianna write the height of the Grand Teton in standard form on her report?
Answer:
1.37 × 10⁴ feet
Step-by-step explanation:
Standard form is a way or method used in mathematics to write very large or very small numbers in a compact form by raising them to the power of 10 (exponents)
She read that the Grand Teton in Wyoming is about 1.37 × 10⁴ feet high.
The standard form of writing this height = 1.37 × 10⁴ feet.
Answer:
the short answer would be A
Step-by-step explanation:
A drop of water leaks from a faucet at a rate of 5-5 liters per second
Answer:
what's the question??zz
2(−2x+1)−5x+2=
\,\,-23
−23
Answer:
y = 4/9
Step-by-step explanation:
2(−2x+1)−5x+2 = 0
2*(−2x) +2*(1)−5x+2 = 0
-4x +2 -5x +2 = 0
-9y +4 = 0
-9y = -4
9y = 4
y = 4/9
What is an equation of the line that passes throuogh the points( -6,-5) and( 2-,3)
Answer:
y = 2 x + 7
Step-by-step explanation:
Use the slope formula and slope-intercept form y=mx+b to find the equation.
What goes in the blank?
A always
B sometimes
C never
D rarely
Answer:
B
Step-by-step explanation:
How many number of terms does 5x^3 have
Answer:
Step-by-step explanation:
5[tex]x^{3}[/tex] has only one term and that is 5[tex]x^{3}[/tex]
Hope this helps
plz mark as brainliest!!!!!
