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Maksim231197 [3]
3 years ago
6

Eric runs 7 miles in 47 minutes. How many miles does he run per minute? (b)Jane bought 25 pounds of flour for 10 . How many poun

ds of flour did she get per dollar?
Mathematics
1 answer:
Nadusha1986 [10]3 years ago
5 0
6minutes  and 2.5 pounds
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How to add the rational expression d^2/d-2+3/2x+4
Elden [556K]

\frac{d^2}{d} - 2 + \frac{3}{2}x + 4\\= d + \frac{3}{2} x + 2

7 0
3 years ago
I need help plz help me with this
cluponka [151]

Answer:

Okay you are asking for the area of a circle ( drum head ) to find that is. You get R (radious) by dividing 14 by 2 and get 7


Step-by-step explanation:

A= πr^2

so what is the R? Its 7

Plug the numbers in and

and your answer is 153.94



3 0
3 years ago
An ellipse has a co-vertex at (–8, 9) and a foci at (4, 4). If the center of the ellipse is located below the given co-vertex, t
vovikov84 [41]

Answer:

Step-by-step explanation:

“the center of the ellipse is located below the given co-vertex”

Co-vertex and center are vertically aligned, so the ellipse is horizontal.

Equation for horizontal ellipse:

(x-h)²/a² + (y-k)²/b² = 1

with

a² ≥ b²

center (h,k)

vertices (h±a, k)

co-vertices (h, k±b)

foci (h±c,k), c² = a² -b²

One co-vertex is (-8,9), so h = -8.

One focus is (4,4), so k = 4.

Center (h,k) = (-8,4)

c = distance between center and focus = |-8 - 4| = 12

b = |9-k| = 5

a² = c² + b² = 169

(x+8)²/169 + (y-4)²/25 = 1

7 0
3 years ago
PLEASE HELP NEED BY TOMORROW MORNING AND PLEASE SHOW WORK.
Lostsunrise [7]
-2/9 is -0.222....
-0.222... rounded is -0.22.
so it is -0.22.
when a decimal goes on, u can put a bar over(simpily draw a line on top the first few numbers) or round.

5 0
4 years ago
Why did I get it wrong ? I’m finding constant B and idk what’s wrong with my step.
Klio2033 [76]

Answer:

\large \boxed{\sf \ \ A=5, \ \ B=-13 \ \ }

Step-by-step explanation:

Hello,

What you did is correct...

(Ax-3)(x-2)=5x^2+Bx+6\\\\\text{*** we develop the left side ***}\\\\Ax^2+(-2A-3)x+6=5x^2+Bx+6

... and you found A by identifying the term in x^2 to get A = 5, right?

<u>What about the other terms?</u>

<u />

We can then identify the like terms:

>>> term in x^2\\

   A = 5

>>> term in x

   -2A+3=B

>>> constant term

   6 = 6

As we know that A=5 it means that B = -2*5-3=-13

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0
4 years ago
Read 2 more answers
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