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fomenos
3 years ago
15

Which equation does the graph below represent?

Mathematics
2 answers:
vredina [299]3 years ago
6 0

Answer:

4. y=-4x

Step-by-step explanation:

your rise (up and down) is negative as it goes 4 down and your run (left and right) is positive and it goes 1 to the right

- \frac{4}{1}  =  - 4

Delicious77 [7]3 years ago
3 0
The answer is y= -4x
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3 sailboats to 5 fan boatsHow many fan boats if therewere 54 sailboats?
prisoha [69]

we can use cross multiplication

\begin{gathered} 3\text{sail}\longrightarrow5\text{fan} \\ 54\text{sail}\longrightarrow\text{xfan} \end{gathered}

where x is the number of fan boats

\begin{gathered} x=\frac{54\times5}{3} \\  \\ x=90 \end{gathered}

the number of fan boats to 54 sailboats is 90

7 0
1 year ago
Given that the two of the three lines 3x+4y=5,5x+By=13, and 7x=2425 are perpendicular, compute B. Express your answer as a fract
valentina_108 [34]

Answer:

B = -¹⁵/₄  

Step-by-step explanation:

The slope of 7x = 2425 is 0, and the other two lines have non-zero slopes, so they must be the ones that are perpendicular.

(1)  3x + 4y  = 5

(2) 5x + By = 13

1. Calculate the slope of Line (1)

3x + 4y = 5

Subtract 3x from each side:     4y = -3x + 5

Divide each side by 4:                y = -¾x + ⁵/₄

The slope m₁ = -¾.

2. Calculate the slope of the perpendicular line

m₂ = -1/m₁

m₂ =  ⁴/₃

3. Calculate the slope of Line (2)

5x + By = 13

Subtract 5x from each side:     By = -5x + 13

Divide each side by B:                y = (-5/B)x + 13/B

The slope m = -5/B.

4. Calculate the value of B

If Line (2) is the perpendicular line, then

⁴/₃ = -5/B

Multiply each side by B:     (⁴/₃)B = -5

Multiply each side by 3:         4B = -15

Divide each side by 4:             B = -¹⁵/₄

So, the value of B = -¹⁵/₄, and the equation of Line (2) is

5x - (¹⁵/₄)y = 13

The Figure below shows the graph of Line (1) in purple, and the graph of its perpendicular Line (2) in black.

4 0
2 years ago
Theo had a balance of -4 in his savings account. After making the deposit, he has 25 in his account. What is the overall change
Maru [420]
$29

It took $4 to get to Zero, then $25 to get to $25. 4+25=29
5 0
3 years ago
You have just been notified that you are the only living descendent of a math-loving eccentric, who put $10 in a bank account in
Elden [556K]

Answer:

\$532,166.99 \text{  (to the nearest penny)}

Step-by-step explanation:

Amount \: at \: Compound \: Interest= P(1+\frac{r}{k} )^{nk}

Principal, P=$10

Rate,r =5%

Compounding Period,K=4 (Quarterly)

Number of Years, n=2019-1800=219 Years

\text{Balance as at April 30th 2019}= 10(1+\frac{0.05}{4} )^{219*4}\\=10(1+0.0125 )^{876}\\=10(1.0125 )^{876}\\\approx\$532166.99 \text{  (to the nearest penny)}

7 0
3 years ago
Write 4/10 and 3/5 as a pair of fractions with common denominator and Write 2/7 and 1/3 as a pair of fractions with common denom
Salsk061 [2.6K]
4/10 and 3/5 = 4/10 and 6/10
2/7 and 1/3 = 6/21 and 7/21
5 0
3 years ago
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