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Naddik [55]
3 years ago
9

What value of C makes the equation true? -3 - 3/4(c - 4) = 5/4

Mathematics
1 answer:
stiks02 [169]3 years ago
6 0
To make the equation true the value of c has to equal -5/3
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C,DB

Step-by-step explanation:

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13x + 6y = -30
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The answer is d, (-2.5,0.75)
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if you're at the state fair with some friends and deciding between buying a jumbo pack of 50 ride tickets for $45 or medium pack
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2 years ago
The sum of the arithmetic progression 4, ..., 76 is 1920. Find the number of terms and the common difference.​
valkas [14]

<u>Number of terms = 48</u>

<u>common difference = 1.5</u>

This question involves the concept of Arithmetic Progression.

  • The formula for sum of an arithmetic progression series with first and last term given is;

S_{n} = \frac{n}{2}(a + l)

where;

a = first term

l = last term

n = number of terms

  • From the given sequence, we see that;

first term; a = 4

last term; l = 76

Sum of A.P; S_{n} = 1920

  • Plugging in relevant values into the sum of an AP formula, we have;

1920 = \frac{n}{2}(4 + 76)

simplifying this gives;

1920 = 40n

n = 1920/40

n = 48

  • Formula for nth term of an AP is;

t_{n} = a_{1} + (n - 1)d

where;

a_{1} is first term

d is common difference

n is number of term

t_{n} is the nth term in question

the 48th term is 76

Thus;

76 = 4 + (48 - 1)d

76 - 4 = 47d

72 = 47d

d = 72/47

d ≈ 1.5

Thus;

Number of terms = 48

common difference = 1.5

Read more at; brainly.com/question/16935540

4 0
3 years ago
Use trigonometric substitution to verify that
photoshop1234 [79]
T = 0
=> Q = 0
 t = x
=> Q = arcsin(x/a)
 rest it just simple integration of trigonometric function
8 0
3 years ago
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