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galben [10]
3 years ago
14

What is the value of xy over z if x =-2 y=-3 and z=4

Mathematics
2 answers:
Art [367]3 years ago
3 0

\dfrac{xy}{z};\ x=-2,\ y=-3,\ z=4

Substitute the values of x, y and z to the expression:

\dfrac{(-2)(-3)}{4}=\dfrac{6}{4}=\dfrac{6:2}{4:2}=\dfrac{3}{2}

Evgen [1.6K]3 years ago
3 0

Question:

What is the value of xy over z if x =-2 y=-3 and z=4

Solution:

\frac{-2 * -3}{4}  = \frac{6}{4}  = 1.5 = 1\frac {1}{2}

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Brenda mails a package to a grandson that weighs 210 grams. About how many ounces is the package? Use 1 ounce = 28.4 grams.
Lilit [14]
210 grams into ounces
210 / x = 28.4 / 1
cross multiply
210 = 28.4 x
divide both sides by 28.4
The answer is <span>7.39 ounces
That can be rounded to 7.4 ounces 

The package is 210 grams or 7.4 ounces.

Hope this helps :)</span>
3 0
3 years ago
What is the equation in point slope form of the line that goes through the points (-4,-2) and(-6,16)
Stels [109]

Answer:

16-(-2)/ -6-(-4)= 18/-2=   -9

Step-by-step explanation:

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6 0
3 years ago
Solve to find x and y in the diagram. HELP ASAP!!
Lapatulllka [165]
X=12, y=7.5

Here is an explanation if you want to know how to do it:

First, look at the diagram and think about what you know so far. Since the lines are parallel, 5x+4y and 12y must be equal. We also know that there is a right angle, so since both angles are equal, 12y=90 and 5x+4y=90.

Solve for y by dividing 90 by 12 to get 7.5, so y=7.5. Sub in this value to the equation on top and you should get 5x+4(7.5)=90 4(7.5)=30, so subtract that from 90 to get 60 and divide 60 by 5 to get 12, so x=12.
5 0
3 years ago
Diego paid $46.50 for 3 concert tickets while Andrea paid 139.50 for 9 tickets. Marisol states that Diego got the better deal be
Darina [25.2K]

Answer:

Marisol is incorrct Diego and Andrea paid the same amount for each ticket . This is because 46.5 times 3 equals to 139.50 so each ticket cost the same amount of money.Since Andrea paid for 9 tickets and Diego for 3 you multiply the cost by 3 so you get the answer and see if its less or greater than Andreas aount of money.

Step-by-step explanation:

7 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH THESE PEOPLE​
vazorg [7]

Inverse of f(x)=x+2 is f^{-1}(x)=x-2 because

f(x)=x+2\Rightarrow x=f^{-1}(x)+2\Rightarrow\boxed{f^{-1}(x)=x-2}

Now f^{-1}(-5)=-5-2=\boxed{-7}.

Hope this helps.

4 0
3 years ago
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