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Sliva [168]
4 years ago
14

Simplify each expression -7x+4(1+x)

Mathematics
2 answers:
AysviL [449]4 years ago
8 0

Answer:

A. -3x+4

Step-by-step explanation:

nydimaria [60]4 years ago
3 0

Answer:

=-3x+4

Step-by-step explanation:

expand the brackets

=-7x+4+4x

then collect the like terms

=-3x+4

thats it

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Quadrilateral ABCD has vertices A(-2,4), B(-3.-3), C(-5,-2), D(-5,2). Which of the following are the coordinates of A’ after a d
Gala2k [10]
<h2>Answer:</h2>

\boxed{A'(-5,10)}

<h2>Step-by-step explanation:</h2>

Dilation is when you stretch something by the same amount in two perpendicular directions. In other words, dilation changes size, not overall shape. Dilation factors greater than one makes the shape greater while dilation factors less than one makes the shape smaller. The scale factor in this problem is:

2\frac{1}{2}

Which is a mixed fraction. This can be transformed into an improper fraction as follows:

2\frac{1}{2}=2+\frac{1}{2}=\frac{4+1}{2}=\frac{5}{2}

So the scale factor is \frac{5}{2}. Since the center of dilation is the origin, we just need to multiply each vertex of the quadrilateral by the scale factor. Thus, for A we have:

A'(-2\times \frac{5}{2},4\times \frac{5}{2})=\boxed{A'(-5,10)}

3 0
4 years ago
Please help asap, hghhfthbh
ANEK [815]

Answer:

90

Step-by-step explanation:

both sides are equal

both sides have to match

therefore y is 90 and x is 30

it is a symmetry thing

4 0
3 years ago
Read 2 more answers
Suppose that a function does have an inverse. The graph of its inverse will be the reflection of the graph of the function over
pishuonlain [190]
The Answer to this problem is (the line y=x). I'm positive that this is the right answer!!!
4 0
3 years ago
Read 2 more answers
After 5 throws in a game of darts, Brent's mean score was 32. Calculate his total score.
ehidna [41]

1.To know this answer, we need to know some vocabulary that's used in t. Most people don't know how to solve questions if they have hard Vocabulary and what the question is Asking

Mean=The average of all his throws

It's asking us to calculate his total score  

2. Find Clues to help you solve word problems

Finding clues in Word Problems is a very important part a lot of people skip but this helps you solve the question easier

5 throws and Mean Score is 32 are the clues

3. Guess and check

The method to this thingy is called guess and check. There is another method which is slightly harder and i just don't want to do it.

Let's just say his scores were... 5, 6, 4, 5,10Add them up and you get 30Then 30/5

Let's try bigger numbers

20+25+20+20

If you like this method, you may try it another method is called work Backwards

5x32=160

Then divide 160 by 5 to double check and you get 32!!

========================================

Therefore, the answer s 160 as his total score

hope this gives you a clue to what we are doing and when you have a question like this, I really hope you understand the concept

Hope this helped (:

5 0
3 years ago
Quadratic equations of the form _____ can be solved using square roots
icang [17]

Answer:

Step-by-step explanation:

Quadratic equations of the form (x - h)^2 + k = 0 can be solved using square roots:  Take the square root of both sides, prefacing the right side with " ± "

6 0
3 years ago
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