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3 years ago

Evaluate the expression when c= -4 and y= 3 c-5y

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

7 0

Answer:

-19

Step-by-step explanation:

If c = -4 and y = 3, replace c and y with their corresponding values in the expression, so that the expression will look like this: (-4) - (5 * 3).

Since multiplication comes before subtraction in PEMDAS, you would multiply 5 by 3, which gets you 15.

Now the expression is (-4) - (15). Then, you do the subtraction. -4 - 15 is equal to -19.

Does that help?

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W - 4c use w = 7 and c = 9 show work plz

Licemer1 [7]

Answer:

-29

Step-by-step explanation:

If we replace W with the number 7 and C with the number 9,

Then the task is given in this form:

7-4×9=

7-36=-29

3 0

3 years ago

15. (07.05 MC) What is the solution to the equation 5x + 2(x - 4) = 5x + X - 10?

svet-max [94.6K]

Answer:

x = -2

Step-by-step explanation:

5x + 2(x - 4) = 5x + x - 10

→ Expand the brackets

5x + 2x - 8 = 5x + x - 10

→ Collect the x terms

7x - 8 = 6x - 10

→ Minus 6x from both sides

x - 8 = -10

→ Add -8 to both sides

x = -2

5 0

3 years ago

What is the measure of angle C?

Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

The given is a right triangle.

Two sides are given as 120 and 122.

120 is adjacent

122 is hypotenuse

Using SOH CAH TOA

$cosC=\frac{adjacent}{hypotenuse}$

$cosC=\frac{120}{122}$

taking cos inverse on both sides

$C = cos^{-1}\frac{120}{122}$

Using calculator

C = 10.39 : Answer

Hope it will help :)

7 0

4 years ago

Help I’m stuck on this( I can’t remember how to do it)

mr_godi [17]

A squared +b squared= c squared
a squared+7 squared =10 squared
a squared + 49= 100
Then subtract 49 from 100 which is 51. Then your square root that number which is 7.14143

5 0

3 years ago

Can u plz help me thank u

rusak2 [61]

Answer:

the answer to the problem is -18

8 0

4 years ago