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Mice21 [21]
3 years ago
10

What is the solution of 3x + 5 = 2x – 7? the x-coordinates of the intersection point of the lines y = 3x + 5 and y = 2x – 7 the

x-coordinates of the x-intercepts of the lines y = 3x + 5 and y = 2x – 7 the y-coordinate of the intersection point of the lines y = 3x + 5 and y = 2x – 7 the y-coordinates of the y-intercepts of the lines y = 3x + 5 and y = 2x – 7
Mathematics
2 answers:
Nitella [24]3 years ago
8 0

What is the solution of 3x + 5 = 2x – 7?

the x-coordinates of the intersection point of the lines y = 3x + 5 and y = 2x – 7

the x-coordinates of the x-intercepts of the lines y = 3x + 5 and y = 2x – 7

the y-coordinate of the intersection point of the lines y = 3x + 5 and y = 2x – 7

the y-coordinates of the y-intercepts of the lines y = 3x + 5 and y = 2x – 7

It's the first choice.  If we solve the simultaneous system

y = 3x + 5

y = 2x – 7

the x coordinate (there's only one) of the meet of the two lines tells us the value of x which satisfies 3x+5=2x-7

Dafna1 [17]3 years ago
5 0

Answer:

a

Step-by-step explanation:

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vredina [299]

Answer:

i cant even see some of the question goodnight

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Help...please?? Thanks guys
vfiekz [6]

Answer:

x=20

Step-by-step explanation:

The Pythagorean theorem is

a^2 +b^2 = c^2

where a and b are the legs and c is the hypotenuse.

The legs are x and 15 and the hypotenuse is 25

x^2 + 15^2 = 25^2

x^2 +225 = 625

Subtract 225 from each side

x^2 +225-225 = 625-225

x^2 = 400

Take the square root of each side

sqrt(x^2) = sqrt(400)

x = 20

4 0
3 years ago
Read 2 more answers
…………………………………………………………………………………………………………………….…………………
ale4655 [162]
We can split this up into 3 rectangles.  2 vertical ones (8 x 3) and one horizontal one in the middle (5 x (8 - 5)

8 x 3 = 24
24 x 2 = 48

5 x (8-5) = 5 x 3 = 15

now add 48 + 15 = 63 cm^2
6 0
3 years ago
What interval notation represents the data graphed below?
Aliun [14]

Answer: Choice D

(-\infty, -2) \cup [4, \infty)

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

Explanation:

The left portion is the interval (-∞, -2)

This is a shorthand way of saying -\infty < x < -2

The curved parenthesis says "do not include this endpoint as part of the solution set". Note the open hole at x = -2 in the diagram.

In contrast, the value x = 4 is included (due to the filled in circle), so we use a square bracket for this endpoint. Therefore, the right-hand portion is represented by [4, ∞) which translates to 4 \le x < \infty

Negative and positive infinity will always use a parenthesis, and never a square bracket. This is because we can only approach infinity but never reach it, so we cannot include it as an endpoint.

All of this builds up to the full interval notation to be (-\infty, -2) \cup [4, \infty)

The only square bracket is near the 4; everything else is a curved parenthesis. This is why choice D is the final answer.

6 0
2 years ago
Someone who can do this help me please.
lianna [129]

Answer:

x= 2

Step-by-step explanation:

the shapes are 6 in apart

5 0
3 years ago
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