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ad-work [718]
3 years ago
11

Ax + 3b = 2f <br />Solve for x.<br />

Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0
Ax+3b=2f
minus 3b both sides
Ax=2x-3b
divide both sides by A
x= \frac{2x-3b}{A}
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(worth a lot of points)<br> Please help! my whole grade DEPENDS on you!
mylen [45]

Answer:

1 ) 49,062.5 feet square

2) 64 π inch square .

3) 9 π meter square .

4)  289 π ft square.

5) 225 π cm square .

Step-by-step explanation:

1) From the above figure we can see that diameter of pond is given as 250 ft.

So we easily calculate the area of circular pond by using the area formula of circle.

AREA = \frac{\pi }{4}  * diameter^{2}

           = 0.785 × 250 × 250 ft square

            = 49,062.5 ft square .

2) In the second figure diameter is given  as 16 inches .

   AREA = \frac{\pi }{4}  * diameter^{2}

                = \frac{\pi }{4}  * 16^{2}

                 = 64 π inch square .

3) Here the diameter is given as 6 m .

   AREA = \frac{\pi }{4}  * diameter^{2}

               = 9 π meter square .

4) Here the radius is 17 ft .

   AREA = π × radius ×radius

               = π × 17 × 17 ft. square .

               = 289 π ft square.

5) Here the radius is give as 15 cm.

AREA = π × radius ×radius .

             = π × 15 × 15 cm square .

              = 225 π cm square .

3 0
3 years ago
[HELP!! GIVING 40 POINTS]Consider the function f(x)=2x+6, create a situation that would model this function.
Rashid [163]
(Above is the graph for the line)
Situation:
You are signing up for a book club. The get-in price is 6. Every month, you have to pay 2 dollars.

How This Works:
y=mx+b
M=Slope
B=y intercept.

Y intercept is the starting point. The beginning out. In this case, the y intercept is 6. So, in our situation, 6 is the joining fee. The beginning amount. Slope is the the rate of change. The slope in this problem is 2. Since the monthly fee is 2, that would make it the slope

3 0
3 years ago
A scientist mixes water (containing no salt) with a solution that contains 35% salt. She wants to obtain 105 ounces of a mixture
Naya [18.7K]

Answer:

60 oz of water to add

45 oz of 35% salt solution should be used

Step-by-step explanation:

Let x = amt no. ounces in the first solution

and  105 - x = amt no. of ounces in the second solution

Ist solution contains 0% salt

2nd solution contains .35(105 - x) salt

.15(105= amt of salt in mix

So.

amt of salt in 1st solution + amt of salt in 2nd solution = amt of salt in the mix

0 + .35(105 - x) = .15(105)

Let's get rid of the fractions by multipying thru the equation by 100

35(105 - x) = 15(105)

3675 - 35x = 1575

-35x = -2100

x = 60 oz of water to add

105 - 60 = 45 oz of 35% salt solution should be used

7 0
3 years ago
Triangle PQR IS SIMILAR TO Triangle KLM.
barxatty [35]
D. 168 in.

15/72 = 35/168
5 0
3 years ago
Find the value of c that completes the square. m2 - 26m + c​
kotegsom [21]

Answer:

c = 169

Step-by-step explanation:

Given

m² - 26m

To complete the square

add ( half the coefficient of the m- term)² to m² - 26m

m² + 2(- 13)m + (- 13)²

= m² - 26m + 169 ( with c = 169 )

= (m - 13)² ← perfect square

3 0
3 years ago
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