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3 years ago

14

to determine whether the inverse of a function is a function you can perform the horizontal line test, true or false

2 answers:

Maurinko [17]3 years ago

8 0

You can do a horizontal line test and if the line touches the lawn more than once and versus not a function and if a function passes the vertical line test is inverse is also a function

Svet_ta [14]3 years ago

3 0

You can perform the horizontal line test on the original to see if the inverse will be a function. You will not perform the horizontal line test on the inverse.

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25% of what number is 329? Round to one decimal place.

natka813 [3]

Answer:

<h3>The number is 1316</h3>

Step-by-step explanation:

Let the unknown number be x

$25\% \times x = 329\\\\\frac{25}{100} \times x =329\\\\\frac{25x}{100} =329\\\\Cross\:Multiply\\25x = 32900\\\\Divide\:both\:sides\:by\:25\\\\\frac{25x}{25} =\frac{32900}{25} \\\\x =1316$

5 0

3 years ago

Estimate the quotient using compatible numbers.<br><br> 340 ÷ 5

prisoha [69]

Answer:

70

Step-by-step explanation:

round 340 to 350 because 5 goes into 35,

7 times

then add the 0 to the end.

350 ÷ 5 = 70

4 0

3 years ago

the area of a square whose sides have length x cm is increasing at the rate of 12cm²/s. how fast is the length of a side increas

katovenus [111]

Answer:

0.67 cm/s

Step-by-step explanation:

The area of a square is given by :

$A=x^2$ ....(1)

Where

x is the side of a square

$\dfrac{dA}{dt}=12\ cm^2/s$

Differentiating equation (1) wrt t.

$\dfrac{dA}{dt}=2x\times \dfrac{dx}{dt}$

When A = 81cm², the side of the square, x = 9 cm

Put all the values,

$12=2\times 9\times \dfrac{dx}{dt}\\\\\dfrac{dx}{dt}=\dfrac{2}{3}\\\\\dfrac{dx}{dt}=0.67\ cm/s$

So, the length of the side of a square is changing at the rate of 0.67 cm/s.

4 0

3 years ago

A jet travels 560 miles in 5 hours at this rate how far could the jet fly in 8 hours? What is the rate of speed of the jet?

Andrews [41]

Let's first figure out how much it flies in a hour,

560/5 = 112

8 x 112 = 896

(112 mph)

5 0

4 years ago

Solve for (x^2+9x+15/x^2+x-2)/(x+4/3x^2+18x+24)

Taya2010 [7]

Answer:=

3x4+30x3−6x2+45

4x4+57x3+72x2

Step-by-step explanation:

5 0

4 years ago