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2 years ago

Solve for x I need help again :/

Mathematics

1 answer:

Nostrana [21]2 years ago

7 0

The Angles depicted 38° and (6x + 2)° are equal because they form vertical opposite Angle pair.

so,

6x + 2 = 38

6x = 38 - 2

6x = 36

x = 36 ÷ 6

x = 6

You might be interested in

kati45 [8]

Answer:

Step-by-step explanation:

F ∝ a

72 ∝ 9 write this using = :

72 = k9 find k

72/9 = 8

so: if a is 7

7 x 8 = 56

5 0

3 years ago

Peter cycles for 1/4 hours at a speed of 20 km/h

yKpoI14uk [10]

Answer:

His average speed is

12 km/hr

Step-by-step explanation:

Remember the triangle of Speed, Distance and Time. If you remember it, you'll ace these kinda questions.

I had trouble with these formulas but the triangle helped me a LOT! Anyways, let's get back to the question. The formula for average speed is pretty much the same as the formula for just speed. The average speed formula is

Average speed

Total Distance

Total Time

So......

48 km

4 hr

12 km/hr

My source

I hope this explanation helps you!

5 0

2 years ago

Any line with no slope is parllel to the<br>A) X-axis <br>B) Y-axis <br>C) Line y=x

ziro4ka [17]

Answer:

I think it could be the X-axis

6 0

2 years ago

In an analysis of healthcare data, ages have been rounded to the nearest multiple of 5 years. The difference between the true ag

Mashcka [7]

Answer:

The correct answer is D. 0.77

Step-by-step explanation:

$X_i \text{ is the difference between true and reported age. where i = 1,2,3......48 }\\\text{The rounded age are uniformly distributed. So, }X_i = 0\\\\and,\thinspace O_{X_i}^2=\frac{\text{(Upper Bound - Lower Bound})^2}{5\times 2.5\text{ ( Rounded value )}}\\\\O_{X_i}^2=\frac{(2.5 + 2.5)^2}{12}\approx 2.083\\\\O_X_i=1.443$

$\bar{X_{48}}=\frac{X_1+X_2+.......+X_{48}}{48}\\\\\bar{X_{48}}=\frac{\frac{48}{X_i}}{48}=0\\\\O_{\bar{X}_{48}}^2=\frac{48\cdot O_{X_i}^2}{48^2}=\frac{O_{X_i}^2}{48}\\\\\text{So, }\bar{X_i}\text{is approximately normal with mean 0 and standard deviation = }\\\\\frac{1.443}{\sqrt{48}}\approx 0.2083$

$=Pr[\frac{-1}{4}\leq \bar{X}_{48}\leq \frac{1}{4}]\\\\=Pr[\frac{-0.25}{0.2083}\leq Z\leq \frac{0.25}{0.2083}]\\\\=Pr[-1.2\leq Z\leq 1.2]\\=Pr(Z\leq 1.2)-Pr(Z\leq -1.2)\\=Pr(Z\leq 1.2)-(1-Pr(Z\leq 1.2))\\=2\times 0.8849 -1\text{ ( Z value for 1.2 is 0.8849 )}\\\approx 0.77$

Hence, the correct answer is 0.77

7 0

2 years ago

Find the final balance in an account with $820 invested at 4% annual simple interest for three years

aniked [119]

I = PRT
I = 820 x .04 x 3
Interest = 98.40

Final Balance = 820 + 98.40 = 918.40

6 0

2 years ago

Read 2 more answers