All categories

3 years ago

Is the ordered pair (4, -2) a solution to this system? Explain why or why not.

Mathematics

1 answer:

katrin [286]3 years ago

5 0

Answer:

is that all?

Step-by-step explanation:

You might be interested in

Fofino [41]

9514 1404 393

Answer:

1.1.1 sin(241°) = -√t

1.1.2 cos(61°) = √(1 -t)

Step-by-step explanation:

Given:

sin(61°) = √t

Find:

1.1.1 sin(241°)

1.1.2 cos(61°)

Solution:

1.1.1 sin(180° +x) = -sin(x)

sin(241°) = -sin(61°) = -√t

1.1.2 cos(x) = √(1-sin²(x))

cos(61°) = √(1 -(√t)²) = √(1 -t)

4 0

3 years ago

For a special sale, a mens tie buyer plans to promote a $39.99 tie. Consequently, the buyer purchases 450 ties and wants to achi

zlopas [31]

Answer:

The average cost of each tie is $56.350

Step-by-step explanation:

We are given that a men tie buyer plans to promote a $39.99 tie. Consequently, the buyer purchases 450 ties

So, Cost of 450 ties = $450 \times 39.99=17995.5$

An order for 100 ties that cost $20.00 each

Cost of 100 ties = $100 \times 20 = 2000$

Total cost price = 17995.5+2000 = 19995.5

Let the selling price of 1 tie be x

Total ties = 450+100 = 550

So, SP of 550 ties =550x

Now we are given that markup is 55%

So, Profit % = 55%

So, $CP = \frac{SP \times 100}{100+P\%}$

Substitute the values

$19995.5 = \frac{550x \times 100}{100+55}$

$19995.5 = \frac{550x \times 100}{155}$

$19995.5 \times 155 = 55000x$

$\frac{19995.5 \times 155}{55000}=x$

$56.350=x$

Hence The average cost of each tie is $56.350

7 0

3 years ago

How do you use trigonometric ratios to solve for a missing side or angle of a right triangle?

Kisachek [45]

Answer:

the sine of the angle of one corner equals the opposite side divided by the hypotenuse.

the cosine of the angle of one corner equals the adjacent side divided by the hypotenuse.

the tangent of the angle of one corner equals the opposite side divided by the adjacent side.

3 0

3 years ago

Read 2 more answers

Which of the following methods would be the easiest to use to solve 12x2 – 48 = 0?

Katarina [22]

$\bf \stackrel{\textit{solving for \underline{x}}}{12x^2-48=0\implies 12x^2=48\implies x^2=\cfrac{48}{12}\implies x^2=4} \\\\\\ x=\pm\sqrt{4}\implies x=\pm 2$

7 0

3 years ago

Read 2 more answers

A jewelry store sells necklaces in lengths that vary from 16 inches to 22 inches. Any necklaces outside of this criteria are rej

Art [367]

Answer:

16-22

Step-by-step explanation:

3 0

3 years ago