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3 years ago

Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Mathematics

1 answer:

Jobisdone [24]3 years ago

5 0

Answer:

2000 ft x 2= 4000 ft

So the answer is 4000 ft

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What should be done so that the expression 4+4 to the power of 2 - 5×2 will have a value of 10?

Olin [163]

Answer: 8 x 8 = 64 - 10 = 64 so you need add the another times operation 64 - 54 x 1 = 10

3 0

3 years ago

A circle has a diameter with endpoints at (6, 5) and (8, 5). Write the equation for the circle.

mario62 [17]

Answer:

$(x-7)^2+(y-5)^2=1$

Step-by-step explanation:

The two things that are required to formulate the equation of the circle is the center coordinate and the radius of the circle!

Center of the circle:

The center of the circle always lies at the midpoint of the endpoints of its diameter: Let's call the endpoints A(6,5) and B(8,5).

Using the midpoint formula we'll get:

$(x_m, y_m) = \left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$(x_m, y_m) = \left(\dfrac{6+8}{2},\dfrac{5+5}{2}\right)$

$(x_m, y_m) = (7,5)$

This is the center coordinate of our circle.

Radius:

The radius of the circle is the distance from the center of the circle to any of the endpoints of the diameter (A or B)

We can use the distance formula:

$r = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

$r = \sqrt{(x_1-x_m)^2+(y_1-y_m)^2}$

$r = \sqrt{(6-7)^2+(5-5)^2}$

$r = \sqrt{1^2}$

$r = 1$

Equation of the circle:

The equation is written as:

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

here, (a,b) are the center points of the circle

in our case this is $(a,b)=(x_m,y_m)=(7,5)$

and r = 1

$(x-7)^2+(y-5)^2=1^2$

$(x-7)^2+(y-5)^2=1$

This is the equation of the circle!

3 0

3 years ago

A police officer estimated the distance from one side of a street to the other to be 14m . The actual distance was 13.4.

Oksi-84 [34.3K]

The absolute error is 0.2 and the percent error is 1.45 I hope this helps

7 0

3 years ago

Round 681,858 to the nearest hundred thousand

jeka94

Answer:

700,000

Step-by-step explanation:

So really, in this question, all you care about is the 10,000ths place

The 10,000ths place in this number is 8. Since 8 is greater that four, round up to 700,000

6 0

3 years ago

Read 2 more answers

Determine the slope of a line that goes through (2,7) and (11,10)

tia_tia [17]

Answer:

1/3

Use the slope formula and simply the fraction.

4 0

3 years ago