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Vlad [161]
3 years ago
7

Which expression is equivalent to - 3(m+5) ? A m - 15 B - 3m + 5 C -3m - 15 D - 15m

Mathematics
1 answer:
mylen [45]3 years ago
5 0

Answer:

C) -3m - 15

Step-by-step explanation:

Distribute -3 to all terms within the parenthesis:

-3(m + 5)

Multiply:

-3 * m = -3m

-3 * 5 = -15

-3m - 15 is your answer, or C)

~

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Jackie has two new puppies. One weighs 5 pounds and the other weighs
Delicious77 [7]

Answer:

The difference in the two puppies weights is 56 pounds.

Hope this helps.

5 0
3 years ago
Classify the system as independent, dependent, or inconsistent.
Anastasy [175]
1. 4x + 8y = 12....divide by 4
     x + 2y = 3
     2y = -x + 3
     y = -1/2x + 3/2...slope is -1/2, y int is 3/2
 
     x + 2y = -3
     2y = -x - 3
     y = -1/2x - 3/2...slope is -1/2 and y int is -3/2

when the slopes are the same, and the y int are different, then the lines are parallel and never intersect...so they have no solution and are inconsistent
=================
2. y = 2x - 1...slope is 2 and y int is -1
    y = -2x + 5 ...slope is -2 and y int is 5
when the slopes are different and the y int are different, then there is 1 solution making it independent
=================
3. 4x - 12y = 8...divide by 4
     x - 3y = 2
same as other equation meaning the equations are the same line...meaning they have infinite solutions making them dependent
7 0
3 years ago
Help please ?<br> its for a quiz and i do not really understand the problem.
Margarita [4]

Answer: I'm not entirely sure but i think its the last one! How this helps!

Step-by-step explanation:

I followed the information on the graph and the one with a 7.2 circumference had a 22.66 cm diameter!

4 0
3 years ago
Can someone please solve this??
Gre4nikov [31]
V=pi*r^2*h/3
=> h=3V/(pi*r^2)
V=6pi^2 cm^3
r=3 cm

h=3V/(pi*r^2)=6*pi^2 / (pi*3^2) = 2pi  cm

Height = 2 pi cm

5 0
3 years ago
Bonita is testing prototype model rocket engines. To be considered a successful launch, the rocket must reach a height of at lea
lbvjy [14]

Answer:

(0, 33)   : Yes

(4.8,  30.5)  : Yes


Step-by-step explanation:

height of at least 24 ft :  y >= 24

horizontal distance of no more than 10 ft. : 0 <= x <= 10

The vertical height must be at least three times as high as the horizontal distance. No rocket should go higher than 33 ft.:

y >=  3x and y <= 33

So Constraints:

24 <= y <= 33

y >= 3x

0 <= x <= 10

Now check to see if those coordinate points meet all the constraints

(0, 33)   : Yes

(4.8, 30.5)  : Yes

(9, 26)  : No (because 26 is less than (3 * 9) = 27)

(4, 36) : No (because 36 > 33,  must be 24 <= y <= 33)

(2, 22): No (because 22 <24,  must be 24 <= y <= 33)

5 0
3 years ago
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