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shusha [124]
3 years ago
5

I don’t understand this

Mathematics
2 answers:
Alexandra [31]3 years ago
5 0

Answer:

-15.41

Step-by-step explanation:

big brain?

BartSMP [9]3 years ago
3 0

Answer:

-13.8

Step-by-step explanation:

6.7ₓ-2.3

Multiply 3 by 7

Multiply 3 by 6

Put a 0 in the ones place

Multiply 2 by 7

Multiply 2 by 6

Add the 2 answers

Add in the negative

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What is the perimeter of quadrilateral ABCD?
alex41 [277]

Answer:

Perimeter of quadrilateral ABCD will be  104

Step-by-step explanation:

Given quadrilateral A'B'C'D' is a reflection of quadrilateral ABCD over the line m.

So, all the corresponding sides of both the quadrilateral should be equal.

Also, we can see from the diagram that A'D'=32,\ A'B'=22,\ BC=20,\ and\ CD=30

As both image are reflection of same scale we can add corresponding sides.

So, the perimeter of ABCD will be

AB+BC+CD+DA

And we have AB=A'B'\ and\ AD=A'D'

Now, perimeter of  ABCD will be 22+20+30+32

Perimeter of quadrilateral ABCD is 104

5 0
3 years ago
Parker offers to pay for 5 of his friends to play laser tag, but 3 of them don’t want to play. Parker offers to pay for 5 of his
gtnhenbr [62]

Answer: B

Step-by-step explanation:

First, you have to find how many friends are playing. This can be found in the equation 5-3. Now you multiply by six to find the cost. If you chose C, that would be incorrect, because the () you would mltilply first (30) and then subtract 3 (27). You can also think of it as finding the cost of how much all of them want to play by using the distributive property, leaving you with 30 - 18, and subtract from there to get 12.

6 0
3 years ago
Twice the sum of four and x is three less than x.
aliya0001 [1]

Answer:

-11

Step-by-step explanation

Condition:

2(4+x)=x-3

8+2x=x-3

Combining similar terms

8+3=x-2x

11=-x

OR

x=-11

7 0
3 years ago
4x^2 -1= 6x<br> Use the quadratic formula
yanalaym [24]
2.  x =(6+√20)/-8=3/-4-1/4√ 5 = -1.309
7 0
2 years ago
Read 2 more answers
Write the point from of the equation for a line that passes through (6,—1) with a slope of 2
Paraphin [41]

Answer:

y = 2x-13

Step-by-step explanation:

The equation for a line is

y = mx+b where m is the slope and b is the y intercept

y = 2x+b

We know a point so we have a y and an x, so we can solve for b

-1 = 2(6) +b

-1 =12+b

Subtract 12 from each side

-1-12 = 12-12+b

-13 =b

Substitute this into y = 2x+b

y = 2x-13

7 0
3 years ago
Read 2 more answers
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