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3 years ago

Find y-intercept for 9x-5y=0.

Mathematics

2 answers:

Nastasia [14]3 years ago

6 0

Answer:

y=0

Step-by-step explanation:

9x-5y=0

9(0)-5y=0

-5y=0

-5y/-5=0/-5

y=0 (y intercept)

9x-5y=0

9x-5(0)= 0

9x=0

9x/9=0/9

x=0 (x intercept)

Hope this Helps :)

Have a good day :)

LUCKY_DIMON [66]3 years ago

3 0

Answer:

y=-9/5x+0 the y intercept would simply be 0

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Find the conjugate of 84 - 63i.

gizmo_the_mogwai [7]

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4 years ago

Find ML, JK=3x+11, ML=10x-12, NP=45

tigry1 [53]

Answer:

$ML = 58$

Step-by-step explanation:

Given

$JK=3x+11, ML=10x-12, NP=45$

See attachment

Required

Length ML

First, calculate x using the following equivalent ratios

$JK : NP = NP : ML$

Express as fraction

$\frac{JK }{ NP} = \frac{NP }{ ML}$

Cross Multiply

$JK * ML = NP * NP$

Substitute values:

$(3x +11) * (10x - 12) = 45 * 45$

Expand

$30x^2 - 36x + 110x - 132 = 2025$

$30x^2 +74x - 132 = 2025$

Collect like terms

$30x^2 +74x - 132 - 2025=0$

$30x^2 +74x -2157=0$

Using a calculator:

$x \approx -10$ and $x \approx 7$

Given that:

$ML=10x-12$

Substitute values for x

$ML=10*-10-12 = -100 - 12 = -112$

$ML=10*7-12 = 70 - 12 = 58$

ML cannot be negative; So:

$ML = 58$

5 0

3 years ago

Which is the best estimate of 90/7 divided by 1 3/4

Studentka2010 [4]

Answer:

1 3/4=7/4 since 1*4+3=7, so (90/7)/(7/4)=(90/7)(4/7)=360/49, mixed number form is 7 17/49 and in decimal form is 7.35.

Step-by-step explanation:

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3 years ago

According to the general equation for conditional probability, if (image attached)

katrin2010 [14]

Answer: Option A

$P(A|B) = \frac{40}{49}$

Step-by-step explanation:

In a probabilistic experiment, when two events A and B are dependent on each other, then the probability of occurrence A since B occurs is:

$P(A|B) = \frac{P(A\ and\ B)}{P(B)}$

Then if $P(A\ and\ B) = \frac{5}{7}$ and $P(B) = \frac{7}{8}$ then:

$P(A|B) = \frac{\frac{5}{7}}{\frac{7}{8}}\\\\P(A|B) = \frac{40}{49}$

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3 years ago

Read 2 more answers