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3 years ago

Which number is a solution to

Mathematics

1 answer:

charle [14.2K]3 years ago

3 0

Answer:

B. -10

Step-by-step explanation:

$4x + 5 > 7x + 35 \\ - 3x > 30 \\ 3x < - 30 \\ x < - \frac{30}{3} \\ x < - 10$

The first one has got a result different from -12 or -10

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How do you solve x/-11 >= -9?

marta [7]

You can cross multiply
-11(-9) x *( 1)
99=1x
99=x
the answer is 99=x

3 0

3 years ago

A golfer hits an errant tee shot that lands in the rough. A marker in the center of the fairway is 150 yards from the center of

Gwar [14]

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

<h3>Given :-</h3>

A marker in the center of the fairway is 150 yards away from the centre of the green
While standing on the marker and facing the green, the golfer turns 100° towards his ball
Then he peces off 30 yards to his ball

We have to find the distance between the golf ball and the center of the green .

<h3>Let's Begin :-</h3>

Let assume that the distance between the golf ball and central of green is x

Here, 

Distance between marker and centre of green is 150 yards
That is, Height = 150 yards
For facing the green , The golfer turns 100° towards his ball
That is, Angle = 100°
The golfer peces off 30 yards to his ball
That is, Base = 30 yards

According to the law of cosine :-

$\bold{\red{ a^{2} = b^{2} + c^{2} - 2ABcos}}{\bold{\red{\theta}}}$

Here, a = perpendicular height
b = base
c = hypotenuse
cos theta = Angle of cosine

So, For Hypotenuse law of cosine will be :-

$\sf{ c^{2} = a^{2} + b^{2} - 2ABcos}{\sf{\theta}}$

Subsitute the required values,

$\sf{ x^{2} = (150)^{2} + (30)^{2} - 2(150)(30)cos}{\sf{100°}}$

$\sf{ x^{2} = 22500 + 900 - 900cos}{\sf{\times{\dfrac{5π}{9}}}}$

$\sf{ x^{2} = 22500 + 900 - 900( - 0.174)}$

$\sf{ x^{2} = 22500 + 900 + 156.6}$

$\sf{ x^{2} = 23556.6}$

$\bold{ x = 153.48\: yards }$

Hence, The distance between the ball and the center of green is 153.48 or 153.5 yards

5 0

2 years ago

PLEASE HELP 20 Points and BRainliest Consider the function. f(x) = x2 + 3 Which answer pairs a possible domain restriction for f

puteri [66]

Answer:

It’s domain

y>0

x>0

(so basically d)

Step-by-step explanation:

I got it right on a test

6 0

3 years ago

Toby is n years old and Adrian is d years younger than Toby. Write down a formula for S where S years is the sum of their ages.

Airida [17]

I don’t see any of the problems so I’m guessing you would have to rewrite it

7 0

3 years ago

Read 2 more answers

Find an equation of the line that bisects the acute angles formed by the lines with equations 2x+y-5=0 and 3x-2y+6=0

Neko [114]

The solving for the first one should be like this

$2x+y-5/sqrt 2^2 1^2=2x+y-5/sqrt5$
And the next part $3x-2y+6/sqrt 3^2 -2^2=3x-2y+6/sqrt13$

After these manipulations just multiply them
$
(2sqrt13-3sqrt5)x+(sqrt13+2sqrt5) y-5sqrt13-6sqrt5=0 
$
And finally you need to square and simplify for the completed answer

5 0

3 years ago