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3 years ago

Can you help me find the difference to (−2g+7)−(g+11)=

Mathematics

2 answers:

Mumz [18]3 years ago

7 0

Answer:

Step-by-step explanation:

we can use the distributive property and write it as

(-2g-g ) + (7-11)

-3g -4

natka813 [3]3 years ago

4 0

Answer:

-3g-4

Step-by-step explanation:

-2g-g = -3g and +7-(+11)= -4

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Question is show below.

WITCHER [35]

(1/4ab)^-2

Remove negative exponent by rewritten the equation as (4ab)^2

AUse Product rule to get:

4^2a^2b^2

Now raise 4 to the second power to get:

16a^2b^2

The last answer is correct.

7 0

3 years ago

Complete the following statement. Write sometimes, always, or never. A trapezoid____ has exactly one pair of parallel lines

AURORKA [14]

Answer:

always

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Helppp! I dont completly get the conceptttt

Sergio [31]

1/7 is a
0.2 is b
3/9 is c

Hope you find this helpful!
Brainliest and a like is much appreciated!

3 0

2 years ago

Four boys weighed themselves in different pairs and alone. The weights of the pairs were 110 kg, 112 kg, 113 kg, 118 kg, 121 kg,

brilliants [131]

The lost pair of weight can be found by subtracting the a known pair from

the total weight leaving the value of the lost pair.

The lost weight of a pair of boys is 120 kg

Reasons:

Let a, b, c, and d represent the weights of the four boys, we have;

The number of ways of selecting pairs (two boys) of boys from a group of

four is given using combination formula as follows;

$_nC_r = \dfrac{n!}{r! \cdot (n - r)!}$

Which gives;

$_4C_2 = \dfrac{4!}{2! \cdot (4 - 2)!} = 6$

₄C₂ = 6

Therefore, the weights of the pairs are;

a + b = 110

a + c = 112

a + d = 113

b + c = 118

b + d = 121

c + d = Lost weight

c + d = Lost weight

a + b + c + d = 230 (given)

Therefore;

The lost weight, c + d = 230 - (a + b)

Which gives;

c + d = 230 - (110) = 120

The lost weight = c + d = 120

The lost weight = 120 kg

Learn more here:

brainly.com/question/12974932

6 0

3 years ago

Read 2 more answers

There are 20 students in a math class. Thirty percent of the

Mekhanik [1.2K]

Answer:

Step-by-step explanation:

20% of 30 is 6 are randomly selected.

30 choose 6 = 30! / (30-6)! 6!

= 30! / 24!6!

= 30 * 29 * 28 * 27 * 26 * 25

--------------------------------- <-- 24! cancels

6 * 5 * 4 * 3 * 2 * 1

= 29 * 28 * 27 * 26 * 25

---------------------------------- <--- 30 = 6 * 5 cancels

4 * 3 * 2 * 1

= 29 * 7 * 9 * 13 * 25 <-- 4 cancels 28, 3 cancels 27, 2 cancels 26

= 593775

3 0

3 years ago