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julsineya [31]
3 years ago
6

It costs $50 to join a gym plus $28 per month define the variable

Mathematics
1 answer:
horrorfan [7]3 years ago
3 0

Answer:

28

Step-by-step explanation:

because it's value increases by 28 every month

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What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?
Radda [10]

Answer:

y = 2x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (0, 2) ← coordinates of intercepts

m = \frac{2-0}{0+1} = 2

Note the line crosses the y- axis at (0, 2) ⇒ c = 2

y = 2x + 2 ← equation of line

7 0
3 years ago
The Christmas Bird Count (CBC) is an annual tradition in Lexington, Massachusetts. A group of volunteers counts the number of bi
Lerok [7]

Answer:

(5.216) mean = 61.71

(5.217) standard deviation = 8.88

(5.218) P(X>=60) = 0.9238

(5.129) L = 79, U = 69

(5.130) P(X> or = U) = 0.7058

Step-by-step explanation:

The table of the statistic is set up as shown in attachment.

(5.216) mean = summation of all X ÷ no of data.

mean = 432/7 = 61.71 birds

(5.217)Standard deviation = √ sum of the absolute value of difference of X from mean ÷ number of data

S = √ /X - mean/ ÷ 7

= √551.428/7

S = 8.88

(5.218) P (X> or = 60)

= P(Z> or =60 - 61.71/8.8 )

= P(Z>or= - 0.192)

= 1 - P(Z< or = 0.192)

= 1- 0.0762

= 0.9238

(5.219)the 15th percentile=15/100 × 7

15th percentile = 1.05

The value is the number in the first position and that is 79,

L= 79

85th percentile = 85/100 × 7 = 5.95

The value is the number in the 6th position, and that is 69

U = 69

5.130) P(X>or = 60)

= P(Z>or= 69 - 61.71/8.8)

= P(Z> or = 0.8208)

= 1 - P(Z< or = 0.8209)

= 1 - 0.2942

= 0.7058

3 0
3 years ago
4x+5x=63 <br> Solving linear equations
Rudik [331]

Answer:

x = 7

Step-by-step explanation:

4x+5x=63

Combine like terms

9x = 63

Divide by 9

9x/9 =63/9

x = 7

3 0
3 years ago
Kelly collected $15, $15, $25, and $29 in the last four donations. What is the
Helga [31]

Step-by-step explanation:

15 may be

<em>HOPE</em><em> </em><em>IT</em><em> </em><em>HELP</em><em> </em><em>U</em><em> </em><em>.</em><em>.</em><em>.</em>

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2 years ago
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Can someone help me with this question please
Tanya [424]
39 feet is the answer i think
7 0
3 years ago
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