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Phantasy [73]
3 years ago
7

3(2x + 1) = -5x -5 + 3x solve by algebraic expressions​

Mathematics
1 answer:
Svet_ta [14]3 years ago
8 0
Partial FOIL method for the first half
Then just add like terms
and put both half’s together
then have x on one side and numbers on the other
then you can work out X
X= -1

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For the rotation 1165°, find the coterminal angle from 0° ​
sertanlavr [38]

Answer:

85°

Step-by-step explanation: Hope it helps!

6 0
3 years ago
4 heyyyyyyy help me please
dolphi86 [110]

Answer:

16 runs

Step-by-step explanation:

16-6=10

3 0
3 years ago
Please help. I’ll mark you as brainliest if correct . Dave took an exam with 40 questions. He answered 26 correctly. What was hi
ValentinkaMS [17]

Answer:

65%

Step-by-step explanation:

26/40 = 0.65

0.65 X 100 =65

8 0
3 years ago
1. L(15. 1) is the midpoint of the straight line joining point (p. - 2) to point D(-1. q) find p and q.
kkurt [141]

1. The values of p and q are: p=31 and q= 4

2. B(11, 29/5)

Further explanation:

<u>1. L(15. 1) is the midpoint of the straight line joining point (p. - 2) to point D(-1. q) find p and q.</u>

Given:

M = (15. 1)

(x1, y1) = (p, -2)

(x2, y2) = (-1, q)

The formula for mid-point is:

(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2}) = M  \\Putting\ the\ values\\(\frac{p-1}{2} , \frac{-2+q}{2}) = (15,1)\\Putting\ realtive\ values\ equal\\\frac{p-1}{2} = 15\\p-1 = 15(2)\\p-1 = 30\\p = 30+1\\p = 31\\\frac{-2+q}{2} =1\\-2+q = 2(1) \\-2+q = 2\\q = 2+2 \\q =4

Hence,

p=31

q=4

<u>2. M is the midpoint of the straight line joining point A (3. 1/5) to point B.If m has coordinates (7. 3), find the coordinates of B.​</u>

Here,

(x1,y1) = (3, 1/5)

(x2, y2) = ?

M(x,y) = (7,3)

Putting values in the formula of mid-point

(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2}) = M\\(\frac{3+x_2}{2} , \frac{1/5+y_2}{2}) = (7,3)\\\frac{3+x_2}{2} = 7\\3+x_2 = 7*2\\3+x_2 = 14\\x_2 = 14-3\\x_2 = 11\\\frac{\frac{1}{5}+y_2}{2} = 3\\{\frac{1}{5}+y_2} = 3*2\\{\frac{1}{5}+y_2} = 6\\y_2 = 6 - \frac{1}{5}\\y_2 = \frac{30-1}{5}\\y_2 = \frac{29}{5}

So, the coordinates of point B are (11, 29/5) .

Keywords: Finding mid-point, Finding coordinates through mid-point

Learn more about coordinate geometry at:

  • brainly.com/question/7437053
  • brainly.com/question/9087716

#LearnwithBrainly

6 0
3 years ago
Reynaldo drew a rectangular design that was 6 in. wide and 8in. long. He used a copy machine to enlarge the design so that the w
son4ous [18]

Answer:

13\frac{1}{3}\ in

Step-by-step explanation:

we know that

The dilation is a non-rigid transformation that produces similar figures

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

step 1

Find the scale factor

Let

z ----> the scale factor

z=\frac{10}{6} ----> ratio of corresponding sides

simplify

z=\frac{5}{3}

step 2

Find the length of the enlarged design (L)

Multiply the length of the original design by the scale factor

so  

L=\frac{5}{3}(8)=\frac{40}{3}\ in

Convert to mixed number

\frac{40}{3}\ in=\frac{39}{3}+\frac{1}{3}=13\frac{1}{3}\ in

7 0
3 years ago
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