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Cloud [144]
3 years ago
14

Send help please I am confused aaa According to the distributive law, what operation goes in the blank? -(8 - 7) = - 8 __ 7

Mathematics
1 answer:
Rina8888 [55]3 years ago
4 0

Two negative signs together change the sign to a positive sign.

Using the distributive property with the 7 you would have -(-7), the two negatives would make it +7

So you end up with -8 + 7

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What is the product of (-1/4)x(-3/7)
Oksana_A [137]

Answer:  Multiply from left to right.

(-3/4)(-4/7)(-2/3)

3/7(-2/3)

-2/7

Step-by-step explanation:

7 0
3 years ago
HERE IS SOME INFORMATION ABOUT THE GOALS SCORED IN SOME HOCKEY GAMES.EACH GAME HAS FOUR QUARTERS
Liono4ka [1.6K]

Answer:

a) 2nd

b) 4.8

c) 4

Step-by-step explanation:

Mode is the highest frequency.

"Away" has highest frequency in the second quarter

Mean = sum/n

Sum of Home goals:

5+4+8+9 = 26

Sum of Away goals:

2+9+7+4 = 22

Total goals = 26+22 = 48

Average = 48/10 = 4.8

No. of home goals - No. of away goals

26 - 22 = 4

4 0
3 years ago
The equation x + 10 = 10, has a solution which is an integer.
Irina-Kira [14]

Answer:

the correct answer is d) i.e the above statement has a solution which is neither positive nor negative

because X+10=10

or,X=10-10

X=0

and 0 is neither positive nor negative

3 0
3 years ago
Is it Y-axis or X-axis I need by 11:30
Savatey [412]
I believe it is y axis that it is reflected by
8 0
2 years ago
Read 2 more answers
PLEASEEE EXPLAIN AND HELP
Firdavs [7]

The length of the unknown sides of the triangles are as follows:

CD = 10√2

AC = 10√2

BC =  10

AB = 10

<h3>Triangle ACD</h3>

ΔACD is a right angle triangle. Therefore, Pythagoras theorem can be used to find the sides of the triangle.

  • c² = a² + b²

where

c = hypotenuse side = AD = 20

a and b are the other 2 legs

lets use trigonometric ratio to find CD,

cos 45 = adjacent / hypotenuse

cos 45 = CD / 20

CD = 1 / √2 × 20

CD = 20 / √2 = 20√2 / 2 = 10√2

20² - (10√2)² = AC²

400 - 100(2)  = AC²

AC² = 200

AC = √200 = 10√2

<h3>Triangle ABC</h3>

ΔABC is a right angle triangle too. Therefore,

  • AB² + BC² = AC²

Using trigonometric ratio,

cos 45 = BC / 10√2

BC = 10√2 × cos 45

BC = 10√2 × 1 / √2

BC = 10√2 / √2 =  10

(10√2)² - 10² = AB²

200 - 100 = AB²

AB² = 100

AB = 10

learn more on triangles here: brainly.com/question/24304623?referrer=searchResults

5 0
2 years ago
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