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Crank
3 years ago
11

Help me find the value of the missing variable

Mathematics
2 answers:
aleksley [76]3 years ago
8 0

Answer:

Its isosceles, so the the 2 sides other than st are equal. 2x+6=3x-6

Moves to one side. 12=x

x=12

Step-by-step explanation:

Flauer [41]3 years ago
3 0

x=12

Step-by-step explanation:

You know that angles T and S are equal, meaning the lengths of the lines TV and SV are also equal. That means 2x+6=3x-6. You transfer the xs and get 6=x-6. You undo the negative 6, receiving 12=x.

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Write the equation of the line, in standard form that has an x intercept at (3,0) and y
Nataly [62]
  • x intercept=a=3
  • y intercept=b=-2

We need the normal form first

\\ \rm\bull\rightarrowtail \dfrac{x}{a}+\dfrac{y}{b}=1

\\ \rm\bull\rightarrowtail \dfrac{x}{3}-\dfrac{y}{2}=1

Multiply by 6to bring standard form

\\ \rm\bull\rightarrowtail 2x-3y=1

6 0
3 years ago
Because of variability in the manufacturing process, the actual yielding point of a sample of mild steel subjected to increasing
photoshop1234 [79]

Answer:

P-value ≈ 0.3463

Step-by-step explanation:

Hypothesis test would be

H_{0}:p=0.20

H_{a}:p>0.20

We need to calculate the z-score of sample proportion and then the corresponding P-value.

z-score can be calculated as:

z=\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } } where

  • p(s) is the sample proportion of specimens yield before the theoretical point (\frac{9}{40}=0.225)
  • p is the proportion assumed under null hypothesis. (0.20)
  • N is the sample size (40)

Using the numbers

z=\frac{0.225-0.2}{\sqrt{\frac{0.2*0.8}{40} } } =0.3953

and the P-value is then P(z)≈0.3463

4 0
4 years ago
What is an equation for the line with slope 2/3 and 7-intercept 9? 30 points to whoever answers this correctly and gets brainlie
Annette [7]

The equation of the line is y = \frac{2}{3} x + 9

Step-by-step explanation:

The equation of a line in slope-intercept form is y = m x + b, where

  • m is the slope of the line
  • b is the y-intercept ⇒ the value of y when x = 0

∵ The line has a slope \frac{2}{3}

∴ m = \frac{2}{3}

∵ The y-intercept is 9

∴ b = 9

- Substitute the values of m and b in the form of the equation below

∵ y = m x + b

∴ y = \frac{2}{3} x + 9

The equation of the line is y = \frac{2}{3} x + 9

Learn more:

You can learn more about the linear equations in brainly.com/question/12941985

#LearnwithBrainly

4 0
4 years ago
1. You make a compound word, such as houseboat, by joining two words together. Why do you think -4 < x < 7 is called a com
sattari [20]

Answer:

because it has two parts

Step-by-step explanation:

thats what the first one is

8 0
3 years ago
Distance between (1,5) (4,1)
Ahat [919]

Answer:

4  units right - 4 units left

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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