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2 years ago

Someone help me please

Mathematics

1 answer:

Zinaida [17]2 years ago

5 0

Step 1. Isolate the variable x:

$3x-11 > 7x+9$

$-4x > 20$

$x > -5$

Step 2. Use the simplified inequality to graph:

Select an OPEN point on x = -5
Select a ray extending from -5 to positive infinity (GREATER than -5)

I hope this helps!

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7/16 in decimal form

neonofarm [45]

Answer:

0.4375

Step-by-step explanation:

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3 years ago

The triangles indicated are similar. Solve for x.

sergejj [24]

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2 years ago

If f(x)=x^2-7 and h(x)=7x-5, then f(h(2))=

zaharov [31]

We are given 3 equations. Using these equations we can find f(h(2)).

h(x)=7x-5
h(2)=7(2)-5
h(2)=14-5
h(2)=9

f(x)=x^2-7
f(h(2))=(7x-5)^2-7
we know the answer for h(2) by now, so we can substitute for that.
f(9)=9^2-7
f(9)=81-7
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so f(h(2))=74

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3 years ago

A student pushes a 51.5 kilogram bookshelf across a smooth floor with a net force of 67 N.

iren [92.7K]

The acceleration of the bookshelf is equal to 1.30 $m/s^2$

<u>Given the following data:</u>

Mass of bookshelf = 51.5 kilogram

Net force = 67 Newton

To determine the acceleration of the bookshelf, we would apply Newton's Second Law of Motion:

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on the object while being inversely proportional to its mass.

Mathematically, Newton's Second Law of Motion is given by this formula;

$Acceleration = \frac{Net\;force}{Mass}$

Substituting the given parameters into the formula, we have;

$Acceleration = \frac{67}{51.5}$

Acceleration = 1.30 $m/s^2$

Read more on net force here: brainly.com/question/1121817

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2 years ago

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nekit [7.7K]

Answer: correct trigonometric ratios

SinB, tanA and cos A.

Step-by-step explanation:

The right triangle has two sides 5 and 12 , by Pythagoras it's hypotenuse is 13.

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Sin A =12/13

5 0

3 years ago