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3 years ago

PLEASE ANSWER THIS FOR MEEEEE

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

6 0

Answer:

23°

Step-by-step explanation:

sin ∠N= OP/NO= 19/49

⇒∠N ≈ 23°

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Which of the following is the inverse of y=3* ? E OF y=log, y = logix

Rufina [12.5K]

Answer:

$y = log_{3}(x)$

Step-by-step explanation:

The given function is

$y = {3}^{x}$

To find the inverse, we interchange x and y to get:

$x = {3}^{y}$

We now solve for y by taking antilogarithm.

$y = log_{3}(x)$

Therefore the inverse of the given exponential equation is the logarithm function

$y = log_{3}(x)$

7 0

3 years ago

Can someone help me please?

kupik [55]

3/10=0.3=30%

725/1000=0.725=72.5%

4/10=0.4=40%

5 0

3 years ago

Given the equation y=2x-8, which statement is correct ? A.Y=2(x-4) has a y-intercept of 4 B. Y=2(x-4)has a y-intercept of -4 C.

kakasveta [241]

Answer:

Correct option: C -> Y=2(x-4) has a x- intercept of 4

Step-by-step explanation:

To find the y-intercept of the equation y = 2x - 8, we just need to find the value of y when x = 0:

$y = 2*0 - 8 = -8$

To find the x-intercept of the equation y = 2x - 8, we just need to find the value of x when y = 0:

$0 = 2*x - 8$

$2x = 8$

$x = 4$

So the y-intercept is -8 and the x-intercept is 4.

Correct option: C -> Y=2(x-4) has a x- intercept of 4

3 0

3 years ago

On parallelogram ABCD below, if A(1,1) B(8,5) C(5,-5) and D (-2,-9), what are the coordinates of point E?

viva [34]

Answer:

The coordinates of point E are (3,-2)

Step-by-step explanation:

we know that

The diagonals of a parallelogram bisect each other

That means ----> The coordinates of point E is the midpoint diagonal AC or the midpoint diagonal BD

The formula to calculate the midpoint between two points is equal to

$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

Verify both cases

Find the midpoint AC

we have the points

A(1,1) and C(5,-5)

substitute in the formula

$E=(\frac{1+5}{2},\frac{1-5}{2})$

$E=(3,-2)$

Find the midpoint BD

we have the points

B(8,5) and D (-2,-9)

substitute in the formula

$E=(\frac{8-2}{2},\frac{5-9}{2})$

$E=(3,-2)$

therefore

The coordinates of point E are (3,-2)

6 0

3 years ago

The number of chocolate chips in an 18-ounce bag of Chips Ahoy! chocolate chip cookies is approximately normally distributed wit

sineoko [7]

Answer:

a) 0.013

b) 0.7

c) 0.866

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 1262

Standard Deviation, σ = 118

We are given that the distribution of number of chocolate chips is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(fewer than 1000 chocolate chips)

P(x < 1000)

$P( x < 1000) = P( z < \displaystyle\frac{1000 - 1262}{118}) = P(z < -2.220)$

Calculation the value from standard normal z table, we have,

$P(x < 1000) = 0.013 = 1.3\%$

b) P(contains more than 1200 chocolate chips)

$P(x > 1200) = P(z > \displaystyle\frac{1200-1262}{118}) = P(z > -0.5254)\\\\P( z > -0.5254) = 1 - P(z \leq -0.5254)$

Calculating the value from the standard normal table we have,

$1 - 0.300 = 0.7 = 70\%\\P( x > 1200) = 0.7$

c)P(contains between 1000 and 1400 chocolate chips)

$P(1000 \leq x \leq 1400) = P(\displaystyle\frac{1000 - 1262}{118} \leq z \leq \displaystyle\frac{1400-1262}{118}) = P(-2.22 \leq z \leq 1.169)\\\\= P(z \leq 1.169) - P(z < -2.22)\\= 0.879 - 0.013 = 0.866 = 86.6\%$

$P(1000 \leq x \leq 1400) = 86.6\%$

6 0

3 years ago