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3 years ago

Which of these equations have no solution? Check all that apply.

1 answer:

6 0

First one simplifies to 2x + 6 = 2x + 7 which can't be true so this one has No Solution.
Same applies to the second equation ( 5x + 15 = 5x - 15) No solution

also the last one has no solution because it simplifies to 4x + 20 = 4x + 19

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Hey guys can anyone help me find the missing side length pls and ty

Tcecarenko [31]

$\bold{\huge{\green{\underline{ Solution}}}}$

$\bold{\underline{ Given :- }}$

We have given a right angled triangle whose values are m, n and 2

$\bold{\underline{ To \: Find :- }}$

We have to find the value of m and n

$\bold{\underline{ Let's \: Begin :- }}$

In the given right angled triangle, we have

Perpendicular height = n units
Base = 2 units
Hypotenuse = m units

Now, By using trigonometric ratios 

$\bold{\pink{ Sin Φ = }}{\bold{\pink{\frac{Perpendicular }{Hypotenuse}}}}$

$\bold{\red{ Cos Φ = }}{\bold{\red{\frac{Base}{Hypotenuse }}}}$

$\bold{\blue { tan Φ = }}{\bold{\blue{\frac{Perpendicular }{Base }}}}$

According to the question :-

$\bold{ Cos \: 45° = }{\bold{\frac{2}{m}}}$

$\bold{ 1/√2= }{\bold{\frac{2}{m}}}$

$\bold{\red{ m = 2√2 \: units }}$

We know that , Sum of Angles of triangle is 180° .

Therefore, 

Let the unknown angle be x

$\sf{ 45° + x + 90° = 180° }$

$\sf{ x = 180° - 135 ° }$

$\sf{ x = 45° }$

Now, 

$\bold{ Cos \: x° = }{\bold{\frac{n}{2√2}}}$

$\bold{ Cos \: 45° = }{\bold{\frac{n}{2√2}}}$

$\bold{ 1/√2= }{\bold{\frac{n}{2√2}}}$

$\bold { n = 2√2/√2 }$

$\bold{\red{ n = 2\: units }}$

Thus, The value of m = 2√2 and n = 2

$\sf{\blue{ Hence, \: option \: D \: is \: Correct }}$

5 0

1 year ago

Read 2 more answers

Find the area of the parallelogram.

ArbitrLikvidat [17]

Answer:

$160 {ft}^{2}$

Step-by-step explanation:

Area of parallelogram =base x height

Area=20 x 8=160

Units=

$ft {}^{2}$

6 0

2 years ago

Read 2 more answers

I need help with is problem.

ad-work [718]

Step-by-step explanation:

A function f(x) can be scaled by a factor of "a" and translated by (h,k) by the relation:

f(x) -> a f(x-h)+k

substitute f(x) by sqrt(x), then

sqrt(x) -> a*sqrt(x-h) + k

So the given equation is derived from f(x) = sqrt(x), hence a radical function.

8 0

3 years ago

Read 2 more answers

What is the equation of the line in slope-intercept form?

Mekhanik [1.2K]

Answer:

It's the second option -> y = 1/2x -1

7 0

2 years ago

How many times does 5 go in to 47

Feliz [49]

47/5=9.40
9*5=45
47/5= 9 2/5

6 0

2 years ago