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EleoNora [17]
2 years ago
8

What is the product of (-4)(7) and why?

Mathematics
1 answer:
Evgesh-ka [11]2 years ago
3 0

Answer:

The product of (-4)(7) is -28

Step-by-step explanation:

First you will multiply the number together.

This gets you -28.

The reason it is a negative number is because when you multiply a positive and a negative number together, you get a negative number.

Whereas, if it were two negative numbers, (-4)(-7), or two positive numbers,

(4)(7), the answer would have been positive, 28.

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Kite FGHK is shown. <br> What is the value of m?
Georgia [21]

For this case, the first thing to do is to observe that the figure is symmetrical with respect to the FH axis.

Therefore, the following lengths are the same:

GH = HK

So, by equalizing both sides we have:

5m + 1 = 3m + 7

From here, we clear the value of m.

We have then:

5m - 3m = 7 - 1\\2m = 6

m = \frac{6}{2}\\m = 3

Answer:

The value of m is given by:

m = 3

4 0
3 years ago
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Chatty made this square picture. She wants to glue yarn around the border to make a frame. How much yarn does she need?
Romashka [77]

Answer:

60 inches

Step-by-step explanation:

s = 15 in

Perimeter of a Square = 4 s

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                                     = 60 in

∴Chatty needs 60 inches of yarn.

Hope that helps!!

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7 0
3 years ago
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Solve −3x+5&lt;17 <br><br> If someone could do this fast it would really help!
miss Akunina [59]

Answer:

x>-4

Step-by-step explanation:

-3x<12

x>-4

8 0
2 years ago
Prove that the product of the second and third numbers out of four consecutive whole numbers is two greater than the product of
podryga [215]

Let the four consecutive numbers be x,x+1,x+2,x+3.

Now the product of second and third number=(x+1)(x+2)=x²+3x+2=k

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A.T.Q

product of second and third number= product of first and fourth number+2

Hence proved

6 0
3 years ago
Solve x + 3y = 9. 3x – 3y = –13
Sloan [31]
Question \ 1) \ x + 3y = 9 

&#10;x=9-3y&#10; &#10;  |Subtract \ 3y \ from \ both \ sides| 

Question \ 2) \ 3x - 3y = -13 

&#10;3(x-y)=-13&#10; &#10;   |Factor \ out \ the \ common \ term \ 3|

x-y= \dfrac{13}{3}   |Divide \ both \ sides \ by \ 3|

x=- \dfrac{13}{3}+y  |Add \ y \ to \ both \ sides|

x=y- \dfrac{13}{3}  |Regroup \ terms|

7 0
3 years ago
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