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antoniya [11.8K]
3 years ago
7

(12) (13) Geometry Check Ans 12) x = 5 y = 2 13 x = 12 y = 13/3

Mathematics
1 answer:
brilliants [131]3 years ago
6 0
Problem 12)

You are correct. You solve the system
x+1 = 3y
3x-4 = 5y+1
for x and y to find that x = 5 and y = 2

As a check
x+1 = 3y
5+1 = 3*2
6 = 6 ... true equation
and
3x-4 = 5y+1
3*5-4 = 5*2+1
11 = 11 ... true equation
Both equations are true when (x,y) = (5,2) so the answer is confirmed

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

Problem 13)

Unfortunately the diagram is cut off so its impossible to say at the moment. Please repost this one. Thank you.
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6 less than 2 times a number​
marysya [2.9K]

Answer:

2x - 6  is 6 less than twice a number or 2(x-3) in factored form.

Hope this helps!

Mark me brainliest if I'm right :)

4 0
3 years ago
If I mix 53 grams of sugar and 22 grams of salt with 15 grams of water, what will my total mass of the product be? Be sure to in
salantis [7]

Answer:

90 grams

Step-by-step explanation:

53g+22g+15g=90grams

5 0
3 years ago
After collecting the data, Maria finds that the number of points per game for a certain basketball player is normally distribute
kolezko [41]

Answer:

Step-by-step explanation:

Since the number of points per game for a certain basketball player is normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = number of points per game

µ = mean

σ = standard deviation

From the information given,

µ = 14 points

σ = 2 points

The probability that in a randomly selected game, the player scored more than 8 points is expressed as

P(x > 8) = 1 - P(x ≤ 8

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z = (8 - 14)/2 = - 3

Looking at the normal distribution table, the probability corresponding to the z score is 0.00135

P(x > 8) = 1 - 0.00135 = 0.9987

Converting to percentage, it becomes

0.9987 × 100 = 99.87%

5 0
3 years ago
Find an equation of the line passing through the pair of points (2,3) and (5,9). Write the equation in the form Ax + By = C.
8090 [49]

Answer:

- 2x +  y  = - 1 , so the B is correct.

Step-by-step explanation:

+ Because of "the line passing through the pair of points (2,3) and (5,9)", that means the line has the equation y = ax + b where a = (9-3)/(5-2)= 6/3= 2

+ So the equation is y = 2x + b.

+ Then we replace x= 2 and y= 3 into y = 2x + b for finding  like:

3 = 2*2 + b or 3 = 4 + b, so we find b = 3 - 4 = - 1.

+ The equation of this line is y = 2x - 1 or in the form:

                                  2x - y - 1 = 0 (or -2x + y = -1)

Have a good day!

7 0
4 years ago
Given: Point K is between Points J and L. KL=9x+2, KJ=5x–8 and JL = 12x. Find KL.
Firlakuza [10]

Answer:

gfgyfhgj

Step-by-step explanation:

5 0
3 years ago
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