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2 years ago

4=2/4u one step equation

Mathematics

1 answer:

docker41 [41]2 years ago

3 0

4 = 2/4u

Multiply both sides by 4u

16u = 2

Divide both sides by 16, and simplify.

u = 1/8

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Your family has a cable television package that costs $40.99 per month. Pay-per-view movies cost $3.95 each. Your family budgets

ELEN [110]

Answer:

3 movies

Step-by-step explanation:

55$-40.99$= 14.01$ left to spend on movies

$14.01/$3.95=3.54

Which means you can buy 3 movies.

5 0

3 years ago

A student is given that point P(a, b) lies on the terminal ray of angle Theta, which is between StartFraction 3 pi Over 2 EndFra

Harman [31]

Answer:

A.

The student made an error in step 3 because a is positive in Quadrant IV; therefore,

$cos\theta = \frac{a\sqrt{a^2 + b^2}}{a^2 + b^2}$

Step-by-step explanation:

Given

$P\ (a,b)$

$r = \± \sqrt{(a)^2 + (b)^2}$

$cos\theta = \frac{-a}{\sqrt{a^2 + b^2}} = -\frac{\sqrt{a^2 + b^2}}{a^2 + b^2}$

Required

Where and which error did the student make

Given that the angle is in the 4th quadrant;

The value of r is positive, a is positive but b is negative;

Hence;

$r = \sqrt{(a)^2 + (b)^2}$

Since a belongs to the x axis and b belongs to the y axis;

$cos\theta$ is calculated as thus

$cos\theta = \frac{a}{r}$

Substitute $r = \sqrt{(a)^2 + (b)^2}$

$cos\theta = \frac{a}{\sqrt{(a)^2 + (b)^2}}$

$cos\theta = \frac{a}{\sqrt{a^2 + b^2}}$

Rationalize the denominator

$cos\theta = \frac{a}{\sqrt{a^2 + b^2}} * \frac{\sqrt{a^2 + b^2}}{\sqrt{a^2 + b^2}}$

$cos\theta = \frac{a\sqrt{a^2 + b^2}}{a^2 + b^2}$

So, from the list of given options;

The student's mistake is that a is positive in quadrant iv and his error is in step 3

3 0

2 years ago

Find the value of x in the rectangle ABCD.

attashe74 [19]

Answer:

52°

Step-by-step explanation:

here's your solution

=> we know that the measure of angle of rectangle is 90°

=> 38° + X = 90°

=> X = 90° - 38°

=> X = 52°

hope it helps

3 0

2 years ago

Read 2 more answers

NEED HELP DUE TODAYY!!!

svetoff [14.1K]

Answer:

144

Step-by-step explanation:

5x + 4x = 7x + 32

9x = 7x + 32

2x = 32

x = 16

7(16) + 32 = 144

I think this is correct

pls mark brainliest if good

7 0

2 years ago

Which is greater 0.205 or 205/1000

Burka [1]

Neither...

205/1000 equals .205

So they are both the same.

Hope this helps -J

8 0

2 years ago