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Troyanec [42]
3 years ago
8

When 5 times a number is added to twice the number the result is 10. what is the number?

Mathematics
1 answer:
dlinn [17]3 years ago
8 0

Answer:

10/7

Step-by-step explanation:

5x+2x=10

7x=10

x=10/7

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Everyone at Jaylen's school wore either brown or blue for school spirit day. 90 students wore brown and 10 students wore blue. W
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90%

Step-by-step explanation:

90 + 10 is 100 total

90/100 is just 90%

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a 28 inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third pi
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Where x is the length of the first piece
x + 2x + 6x + 1 = 28 \\  \\ 9x = 27 \\  \\ x = 3
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A hawk can travel at a speed of 120 miles per hour. How long would it take to travel 840 miles without stopping?​
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Step-by-step explanation:

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Which statement correctly identifies a local minimum of the graphed function? Over the interval [–3, –2], the local minimum is 0
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C.

Step-by-step explanation:

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4 0
3 years ago
Math again yay!...Ew math
Sliva [168]

Answer:

The graph of g(x) is wider.

Step-by-step explanation:

Parent function:

f(x)=x^2

New function:

g(x)=\left(\dfrac{1}{2}x\right)^2=\dfrac{1}{4}x^2

<u>Transformations</u>:

For a > 0

f(x)+a \implies f(x) \: \textsf{translated}\:a\:\textsf{units up}

f(x)-a \implies f(x) \: \textsf{translated}\:a\:\textsf{units down}

\begin{aligned} y =a\:f(x) \implies & f(x) \: \textsf{stretched/compressed vertically by a factor of}\:a\\ & \textsf{If }a > 1 \textsf{ it is stretched by a factor of}\: a\\  & \textsf{If }0 < a < 1 \textsf{ it is compressed by a factor of}\: a\\\end{aligned}

\begin{aligned} y=f(ax) \implies & f(x) \: \textsf{stretched/compressed horizontally by a factor of} \: a\\& \textsf{If }a > 1 \textsf{ it is compressed by a factor of}\: a\\  & \textsf{If }0 < a < 1 \textsf{ it is stretched by a factor of}\: a\\\end{aligned}

If the parent function is <u>shifted ¹/₄ unit up</u>:

\implies g(x)=x^2+\dfrac{1}{4}

If the parent function is <u>shifted ¹/₄ unit down</u>:

\implies g(x)=x^2-\dfrac{1}{4}

If the parent function is <u>compressed vertically</u> by a factor of ¹/₄:

\implies g(x)=\dfrac{1}{4}x^2

If the parent function is <u>stretched horizontally</u> by a factor of ¹/₂:

\implies g(x)=\left(\dfrac{1}{2}x\right)^2

Therefore, a vertical compression and a horizontal stretch mean that the graph of g(x) is wider.

4 0
2 years ago
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