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3 years ago

3^-2 as a fraction need help

Mathematics

2 answers:

RSB [31]3 years ago

8 0

Answer:

Step-by-step explanation:

Gnesinka [82]3 years ago

4 0

1/9 is the correct answer

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Plz look at the picture and line up the numbers and show your work on each equation! Thankyou!

Anton [14]

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5 0

3 years ago

12 of the students in a Geometry class passed a Geometry test. If these students are 80% of all the students in the class, how m

VikaD [51]

Answer:

Step-by-step explanation:

12/8 =1.5 * 10 =15

6 0

3 years ago

Where does the line cross in the equation y=2x=12

dlinn [17]

If you mean y=2x+12 then the line crosses at positive 12

3 0

3 years ago

Giselle has a catering business. There is a proportional

Vanyuwa [196]

Answer:

1) The graph labeled and the ordered pairs plotted are shown in the second picture.

2) To calculate the amount of meat (in pounds) needed for a party of 75 people:

Substitute the value of the Constant of proportionality and $x=75$ into the equation $y=kx$ and then evaluate (The result is 30 pounds).

Step-by-step explanation:

<h3> The missing graph is attached.</h3>

Proportional relationships have the following form:

$y=kx$

Where "k" is the Constant of proportionality.

1) You can observe in the graph shown in the first picture this point:

$(10,4)$

So you can subsitute the coordinates of this point into $y=kx$ and solve for "k":

$4=k(10)\\\\k=\frac{4}{10}\\\\k=\frac{2}{5}$

Now you can find the amount of meat needed for 20, 30, 40, and 50 people with this procedure:

For 20 people

Substituting $k=\frac{2}{5}$ and $x=20$ into the equation $y=kx$ and evaluating, you get:

$y=(\frac{2}{5})(20)=8$

The ordered pair is:

$(20,8)$

For 30 people

Substituting $k=\frac{2}{5}$ and $x=30$ into the equation $y=kx$ and evaluating, you get:

$y=(\frac{2}{5})(30)=12$

The ordered pair is:

$(30,12)$

For 40 people

Substituting $k=\frac{2}{5}$ and $x=40$ into the equation $y=kx$ and evaluating, you get:

$y=(\frac{2}{5})(40)=16$

The ordered pair is:

$(40,16)$

For 50 people

Substituting $k=\frac{2}{5}$ and $x=50$ into the equation $y=kx$ and evaluating, you get:

$y=(\frac{2}{5})(50)=20$

The ordered pair is:

$(50,20)$

Knowing those values of "y"and having the ordered pairs, you can finish labeling the graph an plotting the ordered pairs (See the second picture.).

2) Substituting $k=\frac{2}{5}$ and $x=75$ into the equation $y=kx$ and evaluating, you can calculate the amount of meat (in pounds) needed for a party of 75 people. This is:

$y=(\frac{2}{5})(75)=30$

6 0

3 years ago

Which values are solutions to the inequality below? Check all that apply. √x >8

lapo4ka [179]

Answer:

x > 64

therefore, 65 and 66 both apply

Step-by-step explanation:

$\sqrt{x}$ > 8

square each side to get:

x > 64

8 0

3 years ago