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3 years ago

Evaluate the expression 3(2-1)+2+ -- 7 for x= 3

Mathematics

1 answer:

Aleks04 [339]3 years ago

3 0

Answer:-2

Step-by-step explanation:

3(2-1)+2+--7

3(1)+2+--7

3+2+--7

5+--7

-2

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A rectangle with dimensions of 3 units by 5 units is enlarged by a scale factor of 1.4 By what percent does its area increase?

vodomira [7]

$A_1=3*5=15\\
3.5*1.4=4.9\\
5*1.4=7\\
A_2=4.9*7=34.3\\
\frac{34.3}{15}*100\%=228.(6)\%\\
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3 years ago

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DiKsa [7]

The graph is falling on the left hand side and rising on the right hand side.

Since the two ends of graph are in opposite direction, the exponent of variable has to be odd. For an even exponent of leading term, the two ends are in same direction.

Since the graph is falling on left and rising on right, this indicates that the coefficient of leading term is positive.

So, the leading term must have:
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Thus, option Fourth is the correct answer

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4 years ago

A watering can dispenses water at the rate of 0.20 gallon per minute. The original volume of water in the can was 8 gallons. Whi

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4 years ago

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Find the inverse function in slope-intercept form (mx+b):<br> f(x)=-x+12

Ostrovityanka [42]

Answer:

12 - x

Step-by-step explanation:

y = -x + 12

Replace x with y.

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3 years ago

if you vertically compress the absolute value parent function f(x)=|x| by a factor of 3 what is the equation of the new function

Sphinxa [80]

Answer:

The equation for new function is $y=\frac{1}{3}|x|$

Step-by-step explanation:

We have been given the absolute value parent function f(x) = |x| and this function is vertically compressed by a factor 3.

If we multiply the function with a constant (say a) then the parent function will get stretch/compressed vertically.

We have below conditions for vertical stretch and compression.

a > 1 => vertically stretch

0 < a < 1 => vertically compression

Hence, in order to vertical compression by a factor 3, we have to multiply the whole function by 1/3

Therefore, the equation for new function is $y=\frac{1}{3}|x|$

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4 years ago