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3 years ago

Can someone check if this is correct please

Mathematics

1 answer:

xenn [34]3 years ago

3 0

Answer:

it is correct you are right

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Solve the following system for all solutions:

Burka [1]

Answer:

then

−

and

Step-by-step explanation:

7 0

3 years ago

The product of 8 and a number algebraic expression

dybincka [34]

Answer: 8x

Step-by-step explanation:

Product stands for multiplication, so we need to use (×)

Let x = the number.

----------------------------------------------

The product of 8 and a number

8 × x=8x

3 0

4 years ago

Read 2 more answers

Write the equation of circle b with center B(-2,3) that passes through (1,2)

professor190 [17]

Answer:

$(x+2)^2 + (y-3)^2 = 10$

Step-by-step explanation:

The standard equation for circle is

$(x-a)^2 + (y-b)^2 = r^2$

where point (a,b) is coordinate of center of circle and r is the radius.

______________________________________________________

Given

center of circle =((-2,3)

let r be the radius of circle

Plugging in this value of center in standard equation for circle given above we have

$(x-a)^2 + (y-b)^2 = r^2 \ substitute (a,b) \ with (-2,3) \\=>(x-(-2))^2 + (y-3)^2 = r^2 \\=>(x+2)^2 + (y-3)^2 = r^2 (1)$

Given that point (1,2 ) passes through circle. Hence this point will satisfy the above equation of circle.

Plugging in the point (1,2 ) in equation 1 we have

$\\=>(x+2)^2 + (y-3)^2 = r^2 \\=> (1+2)^2 + (2-3)^2 = r^2\\=> 3^2 + (-1)^2 = r^2\\=> 9 + 1 = r^2\\=> 10 = r^2\\=> r^2 = 10\\$

now we have value of r^2 = 10, substituting this in equation 1 we have

Thus complete equation of circle is $=>(x+2)^2 + (y-3)^2 = r^2\\=>(x+2)^2 + (y-3)^2 = 10$

7 0

3 years ago

The entry fee to an Amusement Park is $125 and the cost of each ride is $ 7.25 ( Mon - Thurs) and $ 8.50 ( Fri - Sun). Ava's mom

icang [17]

Answer:

Step-by-step explanation:

Well it is Friday so its 8.5 each ride.

8.5r which is basically how many rides she can go on after spending 125 on the admission

8 0

3 years ago

If you travel at a rate of 45 mph how many minutes will you will it take you to travel 1 mile

stiks02 [169]

It'd take you<span>, 1 minute and 33 secounds.
45 miles = 60 minutes
1 mile = 60/45 = 4/3 = 1.33 minutes </span>

7 0

3 years ago