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luda_lava [24]
3 years ago
12

14 - 2xy when x = -6 and y = 2.

Mathematics
2 answers:
alex41 [277]3 years ago
8 0

Answer:38

Step-by-step explanation:

Variables come first. So you plug in -6 and 2, the new expression would be

14 - 2(-6)(2).  Then you do the multiplication, so 2(-6)(2) becomes -24,

14 - (-24) is 38.

Paraphin [41]3 years ago
3 0

Answer:

38

Step-by-step explanation:

14 - 2xy when x = -6 and y = 2.

14 - 2( - 6)(2) \\ 14  - 2 \times ( - 12) \\ 14  + 24  = 38

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a car traveling at a constant speed travels 175 miles in 4 hours? How many minutes will it take for the car to travel 1000 feet?
liubo4ka [24]

Answer:

0.26 minutes

Step-by-step explanation:

So if you want to solve this, you need to make all the units the same first. What you first need to work on is the rate, since what it is asking is minutes given distance in feet.

We know that there are:

5280 ft in a mile

60 minutes in an hour

We then convert the rate knowing this:

\dfrac{174\:miles}{4\:hours}\times\dfrac{5280ft}{1\:mile}\times\dfrac{1hour}{60\:minutes} = \dfrac{918,720ft}{240\:minutes} = \dfrac{3828\:feet}{1 minute}

In short, the car is traveling 3,828 ft every minute.

To determine how many minutes it will take for the car to travel just remember that:

speed=\dfrac{distance\:travelled}{time}\;\rightarrow\;time=\dfrac{distance\;travelled}{speed}

Now we plug in what we know and solve what we don't know:

time=\dfrac{1000feet}{\dfrac{3828ft}{1minute}}\;\rightarrow\;1000ft\times\dfrac{1\:minute}{3828ft}=0.26\:minutes

3 0
3 years ago
M + m = 36<br><br> I need help to show the work please
wariber [46]

Answer:

m + m = 36

18 + 18 = 36


Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
HELP PLZ I AM STUCK!!!!!!!
raketka [301]
So -2 is the domain so it is 2 left.

Then -3 is the range so you go 3 down.

so line M is the answer
3 0
3 years ago
Read 2 more answers
Find the solutions of the quadratic equation -9c² +2 +3 = 0.
Tresset [83]

Given that,

An equation : -9c² +2c +3 = 0

To find,

Find the value of x.

Solution,

We have, -9c² +2c +3 = 0

We can solve it using the formula as follows :

x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

Here, a = -9, b = 2 and c =3

Put the values,

c=\dfrac{-2\pm \sqrt{(2)^2-4(-9)(3)}}{2(-9)}\\\\c=\dfrac{-2+\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}, \dfrac{-2-\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}\\\\c=-0.47, 0.69

So, the solution are -0.47 and 0.69.

8 0
3 years ago
SUBSTITUTING INGREDIENTS
tatiyna

Answer:

1.      1 tablespoon Dijon mustard

2.     Combine six Tablespoons of cocoa powder and two Tablespoon of vegetable oil, butter or shortening

3.     2 cups of all-purpose flour, 3 teaspoons baking powder, and ½ teaspoon salt

3.      One teaspoon of dried basil leaves

4.      Combine 1 3/4 cups all-purpose flour with 1/4 cup cornstarch

Step-by-step explanation:

CAn I have brainliest? TYSMMMMMMMMMM

3 0
3 years ago
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