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S_A_V [24]
3 years ago
14

Given the following table, find the rate of change between f(-2) and f(0)

Mathematics
1 answer:
DiKsa [7]3 years ago
8 0

Answer:

-5

have a good day

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Can someone answer these questions ? thank you
Naya [18.7K]

Answer:

Step-by-step explanation:

12a)To rationalize the denominator, multiply the denominator and numerator by √5.

\frac{15}{\sqrt{5}}=\frac{15*\sqrt{5}}{\sqrt{5}*\sqrt{5}}\\\\=\frac{15\sqrt{5}}{5}\\\\=3\sqrt{5}

b) (a+b)² = a² + 2ab + b²

(1 +√3)² = 1² + 2*1*√3 + (√3)²

= 1 + 2√3 + 3

= 4 + 2√3

a = 4 ; b =2

13) (a + b)(a - b) = a² - b²

\frac{(6-\sqrt{5})(6+\sqrt{5})}{\sqrt{31}}=\frac{6^{2}-(\sqrt{5})^{2}}{\sqrt{31}}\\\\ =\frac{36-5}{\sqrt{31}}\\\\=\frac{31}{\sqrt{31}}\\\\=\frac{31*\sqrt{31}}{\sqrt{31}*\sqrt{31}}\\\\=\frac{31\sqrt{31}}{31}\\\\=\sqrt{31}

5 0
3 years ago
You are reducing a map of dimensions 2 ft by 3 ft to fit to a piece of paper 8 in. by 10 in. What are the dimensions of the larg
Alchen [17]

Answer:

6\frac{2}{3} in. by 10 in.

Step-by-step explanation:

2 ft by 3 ft, inches is:

2 * 12 = 24 inch

3 * 12 = 36 inch

24 * 36

Thus, to make 36 into 10, we divide 36 by 3.6 to get 10:

36/3.6 = 10

To keep ratio equal, we need to divide 24 by 3.6 to get:

24/3.6 = 6\frac{2}{3}

Thus, Third answer choice is right.

3 0
3 years ago
If 19 represents 228 gallons, what is the value of 6 units
levacccp [35]

Answer:

72 gallons

Step-by-step explanation:

we know that

19 units represent 228 gallons

so

using proportion

Find out how many gallons represent 6 units

Let

x ---> the number of gallons for 6 units

\frac{228}{19}\ \frac{gallons}{units} =\frac{x}{6}\ \frac{gallons}{units}\\\\x=228(6)/19\\\\x=72\ gallons

7 0
3 years ago
Evaluate the expression for x = 3, y = 1/3 , and z = 5.<br><br> 12x − 3y / 4x − z
bixtya [17]

Answer:

30.25 in decimal form

30 1/4 in fraction form

Step-by-step explanation:

12(3) − 3(1/3) / 4(3)− (5)  = 30.25 or 30 1/4  

8 0
2 years ago
Read 2 more answers
Here are two rectangles.
Drupady [299]
The two rectangles are similar and the scale factor is 3:4
3 0
3 years ago
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