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makkiz [27]
4 years ago
7

13=2x-3 (v +4) Answers

Mathematics
2 answers:
Anton [14]4 years ago
7 0

Answer:

25 = 2x - 3v

Step-by-step explanation:

13 = 2x - 3v - 12

+12 +12

---- ----

25 = 2x - 3v

Naddik [55]4 years ago
4 0

Answer:

25=2x-3v

Step-by-step explanation:

13=2x-3v-12

13+12=25

25=2x-3v

25-2x=-3v

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Is there any admins i can talk to please
ch4aika [34]

Answer:

brainly.com/contact/index

Step-by-step explanation:

link to contact admins!

hope i helped

3 0
3 years ago
Mathematics achievement test scores for 300 students had a mean and a variance equal to 550 and 3,600, respectively. If the dist
blondinia [14]

Answer:

number of scores between 490 and 610 is = 0.68 x 300 = 204

Step-by-step explanation:

The concept of Probability distribution is applied as it relates to the Z-scores.

Z = X - Mean /Standard deviation

The detailed steps and appropriate substitution is as shown in the attached file.

6 0
3 years ago
Linear Equation
Snezhnost [94]

Answer:

See Below

Step-by-step explanation:

It's a lot easier to get a linear equation in slope-intercept form (y = mx + b, where m and b are the line's slope and y-intercept, respectively) if you want to graph it, so let's do that here.

Rewriting the given equation gives us:

5x - y = 12

-y = -5x + 12

y = 5x - 12

We see here that m = 5 and b = -12, so the line has a slope of 5 and a y-intercept of (0, -12). Using this information, we can graph the line, as shown below. Hope this helps!

5 0
3 years ago
So there’s two cell phones the length on first is 8.4 inches the width on the first cell phone is 5.6 inches. On the second cell
Olin [163]

Answer:

The width, in inches of the larger cell phone is 6.14 inches.

Step-by-step explanation:

To solve we must set up a ratio.

\frac{8.4}{5.6} = \frac{9.21}{y}

After setting this ratio up, we can cross multiply to solve for y.

8.4(y) = 5.6(9.21)

8.4(y) = 51. 576

To get y alone we divide by 8.4 on both sides.

y = 6.14

The width, in inches of the larger cell phone is 6.14 inches.

7 0
3 years ago
5) Find the area of a rectangle<br> with points at (-8,5), (2,5),<br> (2,-3) and (-8,-3).
Lady bird [3.3K]

Answer:

80 units²

Step-by-step explanation:

Given <u>vertices</u> of a rectangle:

  • A = (-8, 5)
  • B = (2, 5)
  • C = (2, -3)
  • D = (-8, -3)

As points A and D share the <u>same x-coordinate</u>, and points B and C share the <u>same x-coordinate</u>, the difference between the different <u>x-coordinates</u> is the length of the rectangle:

\begin{aligned}\implies \textsf{Length} & = x_B-x_A\\& = 2-(-8)\\& = 2+8\\& = 10\; \sf units\end{aligned}

As points A and B share the <u>same y-coordinate</u>, and points C and D share the <u>same y-coordinate</u>, the difference between the different <u>y-coordinates</u> is the width of the rectangle:

\begin{aligned}\implies \textsf{Width} & = y_A-y_D\\& = 5-(-3)\\& = 5+3\\& = 8\; \sf units\end{aligned}

Therefore:

\begin{aligned}\textsf{Area of a rectangle} & = \sf width \times length\\&=8 \times 10\\&=80 \sf \; units^2\end{aligned}

7 0
2 years ago
Read 2 more answers
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