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faltersainse [42]
3 years ago
14

HELP PLEASE..............

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
5 0
The answer is D. Every half an hour it goes up by 30, so every hour is 60
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Square root 2 • square of root 200
pantera1 [17]
The correct answer is 20. 
square root 2 times square root of 200 = square root of 400 ans since 400 is a perfect square, then I'll calculate to 20. 
8 0
3 years ago
I need to find how many solutions does the system have. ​
REY [17]
From what I got there is one real solution :)

Rearrange the second equation to give y=2-2x, substitute into the first equation to give you a value for x and then using that you can work out y for the exact coordinates of intersection :)

Also they are both straight line graphs so they will either have one or no solutions

Hope this helped :)
4 0
3 years ago
Add 4 to the sum of K and 8
Katarina [22]

Answer:

12 can u pls give me brainliest so i can lvl up

Step-by-step explanation:

5 0
3 years ago
A polygon will be dilated on a coordinate grid to create a smaller polygon. The polygon is dilated usi X
Reika [66]

Answer:

D). (x, y) --> (0.9x, 0.9y).

Step-by-step explanation:

You multiply each coordinate to create a dilation . To get a smaller image the cinstant of multiplication is less than 1.

So it is D

6 0
3 years ago
Point A is the midpoint of side XZ and point B is the
Katyanochek1 [597]

Answer:

Option (2)

Step-by-step explanation:

Given question is incomplete; here is the complete question.

Point A is the midpoint of side XZ and point B is the  midpoint of side YZ.

Triangle XYZ is cut by line segment AB. Point A is the midpoint of side XZ and point B is the midpoint of side YZ. The length of XY is (5x - 7), the length of AB is (x + 1), and the lengths of XA and ZA are (2x - 2). The lengths of YB and BZ are congruent.

What is AX ?

2 units

4 units

6 units

8 units

From the figure attached,

XYZ is a triangle having A and B as the midpoints of the sides XZ and YZ.

By the theorem of midpoints,

AB = \frac{1}{2}\text{(XY)}

Since AB = (x + 1) and XY = (5x - 7)

(x + 1) = \frac{1}{2}(5x-7)

2x + 2 = 5x - 7

5x - 2x = 2 + 7

3x = 9

x = 3

Therefore, side AB = 3 + 1 = 4 units

Side XY = (5x - 7)

             = 15 - 7

             = 8 units

Side XA = 2(x - 1)

              = 4 units

Therefore, Option (2) will be the answer.

6 0
3 years ago
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