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Degger [83]
4 years ago
14

Drag the correct steps into order to solve the equation 4x – 9 = 11 for x.

Mathematics
1 answer:
aleksandrvk [35]4 years ago
4 0

4x−9=11

Step 1: Add 9 to both sides.

4x−9+9=11+9

4x=20

Step 2: Divide both sides by 4.

4x

4

=

20

4

x=5

Answer: x=5

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2. There are 20 marbles in a bag. 8 are blue, 3 are red, and 9 are green. What is the probability of pulling
Paraphin [41]

Answer:2/5

Step-by-step explanation:8 out of 20 marbles reduces down to 2/5.

5 0
3 years ago
Read 2 more answers
On a coordinates plane, a line passes through ( - 2 , 3 ) and ( 2 , 6 ). Which of the followings lies on the same line.
Dahasolnce [82]

By direct comparison and definition of <em>line</em> segment  we notice that the point (x, y) = (- 6, 0) lies on the <em>line</em> segment <u>AB</u> as each <u>AP</u> is a multiple of former. (Correct choice: C)

<h3>What point lies on a line segment?</h3>

According to linear algebra, a point lies in a <em>line</em> segment if its vector is a multiple of the vector that generates the <em>line</em> segment itself, that is:

<u>AB</u> = k · <u>AP</u>        (1)

The vector that generates the <em>line</em> segment is:

<u>AB</u> = (2, 6) - (- 2, 3)

<u>AB</u> = (4, 3)

And the vectors related to each point are:

Case A

<u>AP</u> = (- 2, 12) - (- 2, 3)

<u>AP</u> = (0, 9)

Case B

<u>AP</u> = (6, 12) - (- 2, 3)

<u>AP</u> = (8, 9)

Case C

<u>AP</u> = (- 6, 0) - (- 2, 3)

<u>AP</u> = (- 4, - 3)

Case D

<u>AP</u> = (- 6, 6) - (- 2, 3)

<u>AP</u> = (- 4, 3)

By direct comparison and definition of <em>line</em> segment  we notice that the point (x, y) = (- 6, 0) lies on the <em>line</em> segment <u>AB</u> as each <u>AP</u> is a multiple of former. (Correct choice: C)

To learn more more on line segments: brainly.com/question/25727583

#SPJ1

4 0
2 years ago
Please help quick on quiz
emmainna [20.7K]

Answer:

D. y=\frac{1}{x-5} +2

Step-by-step explanation:

Graph

Pls give Brainliest

3 0
3 years ago
What is the solution set of x^2+y^2=26 and x-y=6
Strike441 [17]
x^{2} + y^{2} =26  x-y=6  x=y+6&#10; Replacing in equation;  (y+6[tex] )^{2}+y^{2}=26
y^{2} +12x+36+ y^{2} =36
=2y^{2} +12x+36-26=0
=2y^{2} +12x+10=0
Product = 12
Sum= 10
factoring;
2y^{2}+2y+10y+10=0
2y(y+1)+10(y+1)=0
(2y+10)(y+1)=0
y=-1 or 2y=-10
y=-5
x=y+6
When y =-1
x=-1+6
x=5
when y =-5
x=-5+6
x=+1

4 0
4 years ago
Read 2 more answers
The equation yˆ=24.387x + 328.182 models Math SAT scores, y, where x is the number of hours spent studying.
Feliz [49]

Answer:

Without any studying, the score would be about 328

Step-by-step explanation:

The y-intercept of an equation represents the point where its graph crosses the y-axis. At this point the value of x is always equal to 0.

The y-intercept of the equation in this context would represent the Math SAT score of a student who did not do any studying, that is the number of hours spent studying, x = 0.

Substitute x = 0 in the given equation and solve for y;

y = 24.387(0) + 328.182

y = 328.182

Therefore, Without any studying, the score would be about 328

6 0
4 years ago
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