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Novosadov [1.4K]
3 years ago
5

Can someone help me with a, b, c, and d I would really appreciate it

Mathematics
1 answer:
dsp733 years ago
6 0

Step-by-step explanation:

a. Area = 121 ft²

s² = 121

s = √121

Therefore s = 11 ft

b. Area = 81 yd²

s² = 81

s = √81

Therefore s = 9 yd

c. Area = 324 cm²

s² = 324

s = √324

Therefore s = 18 cm

d. Area = 361 mi²

s² = 361

s = √361

Therefore s = 19 MI

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Two less than thrice a number is 2 more than two third of
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Step-by-step explanation:

Let the two numbers be x and y.

\therefore \: 3x - 2 =  \frac{2}{3} y + 2 \\  \\  \therefore \: 3x - \frac{2}{3} y = 2 + 2\\  \\  \therefore \: 3x - \frac{2}{3} y = 4 \\  \\  \therefore \: 9x - 2y = 12

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3 years ago
Karen grew a pumpkin that weighed 18.9 pounds for the competition at the
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oee [108]

Answer: (assuming the first three terms are -6, -2, 2)

(a) f(n) = 4n - 10

(b) 30

Step-by-step explanation:

(So, just as a preface, I made this answer assuming the first three terms are -6, -2, and 2 since I couldn't find a provided fourth term as the problem said)

(a) In order to create an equation for an arithmetic sequence, you need to find the common difference(d) and the 0th term. You can find the common difference by finding the difference between two consecutive terms:

2 - (-2) = 4 (or (-2) - (-6) = 4), so d = 4

Now, you need to find the 0th term. To do this, you can just subtract the d from the first term, -6:

-6 - 4 = -10.

At this point, you can write the equation:

f(n) = -10 + 4n (this is the 0th term plus the common difference, 4, times the nth term)

f(n) = 4n - 10 (reorganize by value of exponents)

(b) In order to find the 10th term, you just need to plug it into the previous equation:

where n = 10, and f(n) = 4n - 10,

f(n) = 4(10) - 10 (substitute n into the equation)

f(n) = 40 - 10 (multiply the term in the parenthesis by the constant)

f(n) = 30 (subtract)

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3 years ago
Given the following triangle, solve for angle X
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Cos(Angle) = Adjacent leg / Hypotenuse

Cos(X) = 3.5/4.6

X = arccos(3.5/4.6)

X = 40.46 degrees.

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3 years ago
Can some one hekp me please☝
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#1 slope will equal 2/3
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3 years ago
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