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3 years ago

PLEASE HELP!!

Mathematics

2 answers:

Galina-37 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

We can check if it works:

7+(-6) is the same as saying 7-6 which is equal to 1. Therefore, we are correct. Hope I could help!

Vesnalui [34]3 years ago

5 0

It would be 7.

Here's why:

7 + - 6 = 1

1 = 1

It's a TRUE statement!

Hope this helps you!!!! :)

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-2- 3(7-k) =-4(2k-1)

Ivan

Answer:

k=27/11

Step-by-step explanation:

7 0

3 years ago

This table shows the number of miles that Sharon rode her bicycle in six weeks. If the mean number of miles she rode is 30, find

Nastasia [14]

(21 + 34 + x + 25 + 37 + 22) / 6 = 30
(139 + x) / 6 = 30 .....multiply both sides by 6
139 + x = 30 * 6
139 + x = 180
x = 180 - 139
x = 41......so during week 3, she rode her bike 41 miles

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3 years ago

PLEASE HELP THANK YOU Emma also wonders how long it will take her balance of $300 to reach $450, assuming she doesn't make

IgorLugansk [536]

Answer:4 years

Step-by-step explanation:

8 0

3 years ago

Help!! 20points! thank you need by tomorrow.

Yakvenalex [24]

Answer:

1. f(x,y) = (x, -y) 2. f(x,y) = (-x,y).

Step-by-step explanation:

I hope that helps

6 0

3 years ago

Theorem: A line parallel to one side of a triangle divides the other two proportionately.

Kisachek [45]

Answer:

Segment BF = 16

Step-by-step explanation:

The given theorem states that a line parallel to one side of a triangle divides the other two sides proportionately

The given theorem is the Triangle Proportionality Theorem

According to the theorem, given that segment DE is parallel to segment BC, we have;

$\dfrac{AD}{BD} = \dfrac{AE}{EC}$

Therefore;

$BD = \dfrac{AD}{\left(\dfrac{AE}{EC} \right) } = AD \times \dfrac{EC}{AE}$

Which gives;

$BD = 6 \times \dfrac{18}{12}= 9$

Similarly, given that EF is parallel to AB, we get;

$\dfrac{AE}{EC} = \dfrac{BF}{FC}$

Therefore;

$BF = FC \times \dfrac{AE}{EC}$

Which gives;

$BF = 24 \times \dfrac{12}{18} = 16$

Therefore, the statement that can be proved using the given theorem is segment BF = 16.

8 0

3 years ago