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3 years ago

Which system of inequalities is graphed below

Mathematics

2 answers:

Zielflug [23.3K]3 years ago

8 0

I think the answer is b. i'm not completely sure...

bonufazy [111]3 years ago

4 0

Answer:

y > x² - 6

y < x² + 2 Option A

Step-by-step explanation:

Given that,

Two parabolic inequality's graph is given.

If we graph inequality y > x² - 6

it shaded the upper part of graph because greater than sign is given.

If we graph inequality y < x² + 2

it shaded the lower part of graph because less than sign is given.

So, common shaded part is mid of both the graph.

Final answer is:

y > x² - 6

y < x² + 2

That's the final answer.

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how long will it take 14 machines to complete the task, given that 8 machines can complete the same task in 7 days?

torisob [31]

Answer:

4 days

Step-by-step explanation:

If 8 machines can complete a task in 7 days, how long will 14 machines take?

So, it is obvious that if the number of machines increases, the number of days taken to complete the task decreases; thus proving that this is an indirect / inverse proportion.

Let's take <em>x</em> as the number of days we need to find out.

8 machines : 7 days

14 machines : <em>x</em> days

14 × <em>x </em>= 8 × 7

14<em>x </em>= 56

x = $\frac{56}{14}$

x = 4

4 0

3 years ago

A shopkeeper bought 50 kg of sugar and sold 1/4th of the sugar. find the mass of sugar that was left

soldi70 [24.7K]

Answer:

12.5 kg

Step-by-step explanation:

50 divided by 4 = 12.5

6 0

3 years ago

Read 2 more answers

The cost of labor for servicing cars at B&B Automotive is $50 for each whole hour or for any fraction of an hour. There is a

Masja [62]

Answer:

Step-by-step explanation:

We can use the equation of a straight line to model the cost of servicing the car.

let the cost be y and the number of hours be x

and the charge per hour is m

y=mx+c

y=50x+25

given that the time is 3.45 hours it is assumed that the charge is for 4 hours since for a fraction of 0.45 hours we are charged $50

y=50(4)+25

y=200+25

y=$225

4 0

4 years ago

Need help with inscribed angles If M

Bogdan [553]

Given:

In the given circle O, BC is diameter, OA is radius, DC is a chord parallel to chord BA and $m\angle BCD=30^\circ$ .

To find:

The $m\angle AOB$ .

Solution:

If a transversal line intersect two parallel lines, then the alternate interior angles are congruent.

We have, DC is parallel to BA and BC is the transversal line.

$\angle OBA\cong \angle BCD$ [Alternate interior angles]

$m\angle OBA=m\angle BCD$

$m\angle OBA=30^\circ$

In triangle AOB, OA and OB are radii of the circle O. It means OA=OB and triangle AOB is an isosceles triangle.

We know that base angles of an isosceles triangle are congruent.

$\angle OAB\cong \angle OBA$ [Base angles of an isosceles triangle]

$m\angle OAB=m\angle OBA$

$m\angle OAB=30^\circ$

In triangle AOB,

$m\angle OAB+m\angle OBA+m\angle AOB=180^\circ$

$30^\circ+30^\circ+m\angle AOB=180^\circ$

$60^\circ+m\angle AOB=180^\circ$

$m\angle AOB=180^\circ-60^\circ$

$m\angle AOB=120^\circ$

Therefore, the measure of angle AOB is 120 degrees.

6 0

3 years ago

Anybody...Help!!!!!!!!!!!

Sloan [31]

Simple...

when they ask for the rate of change they ask for slope -->>

Using $\frac{ y_{1} - y_{2} }{ x_{1} - x_{2} }$ to find the rate of change for (-3,0) and (-2,-5)

$\frac{0--5}{-3--2}$

$\frac{0+5}{-3+2}$

$\frac{5}{-1}$

m=-5

Thus, your answer.

4 0

3 years ago