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Nadya [2.5K]
2 years ago
9

Help me plssssssssss

Mathematics
1 answer:
Amanda [17]2 years ago
8 0

Answer:

Answer: <u> </u><u>y</u><u> </u><u>=</u><u> </u><u>x</u><u> </u><u>+</u><u> </u><u>1</u><u> </u>

Step-by-step explanation:

{ \tt{y =  - 3x + 5}}

» At point of intersection:

{ \tt{2 =  - 3x + 5}} \\ { \tt{ - 3x =  - 3}} \\ { \tt{x = 1}}

» Point of intersection is (1, 2)

• General equation of a line:

{ \tt{y = mx + c}}

  • m is slope
  • c is y-intercept

» Consider point (1, 2);

{ \tt{2 = (1 \times 1) + c}} \\ { \tt{c = 2 - 1}} \\ { \tt{c = 1}}

Equation:

{ \tt{y = x + 1}}

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The nicotine content in a single cigarette of a particular brand has a distribution with mean 0.4 mg and standard deviation 0.1
a_sh-v [17]

Answer:

Step-by-step explanation:

For this case we can define the random variable of interest as: "The nicotine content in a single cigarette " and for this case we know the following parameters:

\mu = 0.4, \sigma = 0.1

And for this case we select a sample size of n =100 and we want to find the following probability:

P(\bar X

And for this case we can use the z score formula given by:

z =\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And replacing we got:

z= \frac{0.38-0.4}{\frac{0.1}{\sqrt{100}}}= -2

And we can find the required probability with the normal standard table and we got:

P(z

8 0
3 years ago
Please help me on this
umka2103 [35]

Answer:

YZ = 8.5

Step-by-step explanation:

Since RY is an angle bisector then the ratio of the sides of the triangle are equal to the corresponding ratio of the base, that is

\frac{YX}{YZ} = \frac{XR}{ZR} , substitute values

\frac{11.9}{YZ} = \frac{7}{5} ( cross- multiply )

7YZ = 59.5 ( divide both sides by 7 )

YZ = 8.5

7 0
3 years ago
Which shows the best use of the associative and commutative to make simplifying 3/4-5+9-2/4+2 easier
ziro4ka [17]

Answer:

(not this)  3/4-5+9-2/4+2

Step-by-step explanation:

1 1/3 instead of 3/4 and 2/4

3 0
3 years ago
Consider the triangle reduction.
agasfer [191]

Answer:

10.8 Cm

.

.

.

ur welcome ♥️♥️♥️

3 0
3 years ago
PROBLEMA MATEMÁTICO:
Tema [17]

Answer:

Step-by-step explanation:

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3 years ago
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