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Nataliya [291]
3 years ago
15

Solve by the square root method 2(5x-7)^2-1=15

Mathematics
1 answer:
Ainat [17]3 years ago
8 0
X=11/5 x=2.2 is slicing for x
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7(x+3)=-2(x-5) <br> Help pls?
olganol [36]

Answer:

x = -11/9

Step-by-step explanation:

7(x+3)=-2(x-5)

Distribute

7x+21 = -2x+10

Add 2x to each side

7x+21 +2x = -2x+10+2x

9x +21 = 10

Subtract 21 from each side

9x +21-21 = 10-21

9x = -11

Divide each side by 9

9x/9 = -11/9

x = -11/9

3 0
3 years ago
Read 2 more answers
What is the slope intercept form of the equation for the line that has a slope of -2 and a y-intercept of 3?
Misha Larkins [42]

Answer:

y = - 2x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = - 2 and c = 3, hence

y = - 2x + 3 ← equation in slope- intercept form

7 0
3 years ago
Hailey cuts a 7-inch square piece of plywood for a birdhouse. She rotates the piece 90° counterclockwise. What is the length in
Readme [11.4K]

Answer:

\huge\boxed{7\  \text{inches}}

Step-by-step explanation:

As I mentioned earlier with a single side (line), rotations do not change the size of something. Only dilations do that. This goes for both lines AND shapes.

However, if the question said she dilated the piece, then yes, the length in inches would be different. However, rotation just changes the position and nothing happens to the length.

Hope this helped!

3 0
3 years ago
There are 20 students on the School Leadership Council. They need to form a committee of 4 in order to plan the upcoming school
yarga [219]

Answer:

um I did the math and I got 5, so i dont really understand

6 0
3 years ago
A triangle has a base length of 12 inches and a height of 14 inches. From that
Paladinen [302]
A= bh(1/2)
a=12(14)(1/2)
a= 168(1/2)
a= 84inches
3 0
2 years ago
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