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3 years ago

Is this answer right?

Mathematics

2 answers:

Maksim231197 [3]3 years ago

6 0

Answer:

Your answer is correct! Good Job :)

Step-by-step explanation:

Klio2033 [76]3 years ago

3 0

Answer:

yes

Step-by-step explanation:

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I need help with all of these. I’m bad at them. Tell me how you solved for this please

Greeley [361]

1) online has the lower unit price

27.25 / 5 = 5.45

32.16 / 6 = 5.3583333.... rounded it would be

5.35

2) The cost of 7 pounds would be 103.18

73.70 / 5 = 14.74 (cost of one pound)

14.74 x 7 = 103.18

3) The scarf in October costed more

13.35 / 3 = 4.45 (one scarf)

22.65 / 5 = 4.53

hope this helps

3 0

4 years ago

Express the square root of -8 in i notation

Ray Of Light [21]

Answer:

2iroot2

Step-by-step explanation:

8 0

3 years ago

Given that θ = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Cpi%7D%7B4%7D" id="TexFormula1" title="\frac{\pi}{4}" alt="\frac{\p

salantis [7]

$cos(\frac{\pi }{4}) = \frac{\sqrt{2}}{2}$ <em>per Unit Circle</em>

$sec(\frac{\pi }{4}) = \frac{1 }{cos(\frac{\pi }{4})} = \frac{1}{\frac{\sqrt{2}}{2}} = \frac{2}{\sqrt{2}} = \frac{2\sqrt{2}}{2}$ = $\sqrt{2}$

cosθ * secθ = 1

$\frac{\sqrt{2} }{2}$ * $\sqrt{2}$ = 1

1 = 1

Answer: A

5 0

4 years ago

Read 2 more answers

Which equation represents a circle with the same center as the circle shown but with a radius of 2 units? (x – 4)2 (y – 5)2 = 2

Vladimir79 [104]

You can use the equation of the circle with center at (h,k) and the radius of f units.

The correct option for the given condition is

Option C: $(x-4)^2 + (y-5)^2 = 4\\$

<h3>What is the equation of the circle with the center at (h,k) and radius of r units?</h3>

If a circle has center at (h,k) and radius is of r units, then its equation is given as

$(x-h)^2 + (y-k)^2 = r^2$

<h3>How to form the equation of the circle with given conditions?</h3>

Since the graphed circle has center at x = 4 and y = 5, thus we have

(h,k) = (x coordinate of center, y coordinate of center ) = (4,5)

And since the radius of the needed circle is needed to be of 2 units, thus,

r = 2 units

Using the above specified formula, we get the equation of the needed circle as

$(x-h)^2 + (y-k)^2 = r^2\\(x-4)^2 + (y-5)^2 = 2^2 = 4\\\\(x-4)^2 + (y-5)^2 = 4\\$

Thus,

The correct option for the given condition is

Option C: $(x-4)^2 + (y-5)^2 = 4\\$

Learn more about equation of circles here:

brainly.com/question/15848342

3 0

3 years ago

Where y=5x-7 and -3x-2y=-12 Write your answer as x,y

Mariulka [41]

Answer:

(x,y) = (2,3)

Step-by-step explanation:

y=5x-7 (i)

-3x-2y= -12

-(3x+2y)= -12

3x+2y= 12 (ii)

By putting the value of y from (i) in (ii)

3x+2(5x-7)=12

3x+10x-14=12

13x=12+14

13x= 26

x = $\frac{26}{13}$

x= 2

By putting the value of x in (i)

y= 5(2)-7

y= 10-7

y= 3

(x,y) = (2,3)

5 0

3 years ago