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REY [17]
3 years ago
6

Im desperate to find the answer please give an explanation to how you got the answer

Mathematics
2 answers:
Olin [163]3 years ago
4 0
Just draw the graphs, and you should find y = 10x² is the only graph narrower than the given one.
Ede4ka [16]3 years ago
4 0
In general the graph of ax^2  is the graph of x^2 wich is stretched by a factor a paralell to the y-axis. So the greater the value of a is the greater the stretch and the narrower the graph.

The answer :-  y = 10x^2 is the narrowest.
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1/2(7x-8)+2x =2-(10x+4
geniusboy [140]
<span>1/2(7x-8)+2x =2-(10x+4)
Distribute
(7x-8)/2 + 2x = 2 -10x -4
combine like terms
(7x - 8)/2 + 2x = -10x - 2
Multiply both sides by 2
7x - 8 + 4x = -20x -4
Combine like terms
11x - 8 = -20x - 4
add 8 to both sides
11x = -20x + 4
add 20x to both sides
11x + 20x = 4
combine like terms
31x = 4
divide both sides by 31
x = 4/31 or </span><span>0.129.

Hope this helps :)</span>
8 0
3 years ago
Find the magnitude and direction in degrees of the vector v=6i+2 seq31​
masha68 [24]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the vector

v = 6i + 2√3j

The Magnitude of a vector:

\mathrm{Computing\:the\:Euclidean\:Length\:of\:a\:vector}:\quad \left|\left(x_1\:,\:\:\ldots \:,\:\:x_n\right)\right|=\sqrt{\sum _{i=1}^n\left|x_i\right|^2}

=\sqrt{6^2+\left(2\sqrt{3}\right)^2}

=\sqrt{36+12}

=\sqrt{48}

\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b}

=\sqrt{3}\sqrt{2^4}

=4\sqrt{3}

The Direction of a vector:

tan Ф = y/x

y=2√3

x = 6

tan Ф = y/x

          = 2√3 / 6

           = √3 / 3                  

\theta \:=tan\:^{-1}\left(\frac{\sqrt{3}}{3}\right)

\:\theta \:=\frac{\pi \:}{6}=30^{\circ \:}

6 0
3 years ago
How does the precise nature of mathematics OR the imprecise nature of language sometimes get in the way of understanding problem
Degger [83]

Answer:

This is because mathematics uses some theories that helps to change words to equations. for example, a tree of height 50m makes a shadow on the ground. an observer standing at angle of 30 degrees, calculate the distance of the man to the tree. we use the the formula, tan (30)=opp/adj

1 \div  \sqrt{3 }   = 50 \div x

x = 50 \sqrt{3} m

7 0
3 years ago
The teacher never taught this please help it’s for a grade
34kurt

Answer: D 2/3

Step-by-step explanation:

8 0
3 years ago
8640 divided by40 long division
Tju [1.3M]
The answer is 216.
https://photomath.net/s/YLLqQX
7 0
3 years ago
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