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3 years ago

3x + y = -4What's the slope and y-intercept of this equation?

2 answers:

5 0

The slope is -3 and the Y intercept is -4
This is because since the equation is in standard form you have to change it to slope intercept form. Like so;
3X + Y = -4
-3x -3x

Y- intercept
Y = -3X - 4
Slope

lesya [120]3 years ago

5 0

The slope would be 3x and your y-intercept would be -4. Why? Because remember the equation is y=mx + b(m-moves by, b-where your slope begins)

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Solve 3-²<br>I need work shown

skelet666 [1.2K]

$\huge\text{Hey there!}$

$\large\text{Equation: }\bold{3^{-2}}$

$\large\text{Lets convert }\bold{3^{-2}}\large\text{ into }\bold{3^2}\large\text{ temporarily...}$

$\large\text{Equation:} \bold{\dfrac{1}{3^2}}\\\\\bold{= \dfrac{1}{3\times3}}\\\\\bold{3\times3\rightarrow9\leftarrow\ solving\ for\ your\ DENOMINATOR\ (bottom\ number)}\\\\\bold{= \dfrac{1}{9}}\\\\\boxed{\boxed{\large\text{Answer: }\bold{\dfrac{1}{9}}}}\huge\checkmark$

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3 0

3 years ago

Please please help me

svetlana [45]

Answer:

here is the equation : y= 3x+10
table: o miles would be $10, 5 miles would be $25, 10 miles would be $40.

Step-by-step explanation:

for the second part you can use the equation above and substitute the value of x in the equation to find y.

explanation: 3 dollars per mile so 5 miles costs 15 dollars but since there is a flat fee of 10 dollars it would total to 25 dollars.

3 0

3 years ago

Can anyone simplify this??

Natali5045456 [20]

Answer:

$3^{12}$

Step-by-step explanation:

$($ $3^{5}$ $)^{2}$

You multiply the exponents to get:

$3^{10}$

Then you divide it by $3^{-2}$

When dividing exponents, you subtract.

10 - - 2 = 12 so the exponent is 12.

That leaves us with:

$3^{12}$

5 0

3 years ago

Two factories I and II produce phones for brand ABC. Factory I produces 60% of all ABC phones, and factory II produces 40%. 10%

denpristay [2]

Answer:

0.3721 or 37.21%

Step-by-step explanation:

P(I) = 0.60; P(II) = 0.40;

P(not defective I) = 0.90; P(not defective II) = 0.80

The probability that the phone came from factory II, given that is not defective, is determined by the probability of a phone from factory II not being defective divided by the probability of a phone not being defective.

$P(II|not) = \frac{P(II)*P(not_{II})}{P(II)*P(not_{II})+P(I)*P(not_{I})}\\P(II|not) = \frac{0.40*0.80}{0.40*0.80+0.60*0.90}\\ P(II|not) =0.3721 = 37.21\%$