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3 years ago

Graph y=sec(x+pi/4)

Mathematics

1 answer:

Nana76 [90]3 years ago

3 0

Answer:

HERE IS THE ANSWER HOPE IT HELPS

Step-by-step explanation:

Brainliest?

Use math papa

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-4(x+5)=-4x-20 how do you answer it

eduard

Answer:

Step-by-step explanation:

-4x-20=-4(x+5)

-4x-20=-4x-20

0=0

7 0

3 years ago

The hypothesis H0: \mu=350H 0 : μ = 350 versus H_a:\mu<350H a : μ < 350 are examined using a sample of size n = 20. The on

Zolol [24]

Answer:

The statistic for this case is given $t =-1.68$

The degrees of freedom are given by:

$df =n-1= 20-1=19$

Since is a one-side lower test the p value would given by:

$p_v =P(t_{19}$

Step-by-step explanation:

Data given and notation

$\bar X$ represent the sample mean

$s$ represent the sample standard deviation

$n=20$ sample size

$\mu_o =350$ represent the value that we want to test

$\alpha$ represent the significance level for the hypothesis test.

z would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the mean is lower than 350, the system of hypothesis are :

Null hypothesis: $\mu \geq 350$

Alternative hypothesis: $\mu < 350$

Since we don't know the population deviation, is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

Calculate the statistic

The statistic for this case is given $t =-1.68$

P-value

The degrees of freedom are given by:

$df =n-1= 20-1=19$

Since is a one-side lower test the p value would given by:

$p_v =P(t_{19}$

5 0

3 years ago

A sequence of transformations maps ABC to AA'B'C. The sequence of transformations that maps A’B’C’ is a __ followed by a __

m_a_m_a [10]

A sequence of transformations maps ABC to AA'B'C. The sequence of transformations that maps A’B’C’ is

A (4,-4)
B (2, -8); and
C (6, -6)

followed by

A' (-2, 4)
B' (-2, 2)
C' (0, 6).

<h3>What is Transformation?</h3>

A transformation is a broad phrase that encompasses four distinct methods for changing the shape and/or position of a point, a line, or a geometric figure.

Hence, the sequence of transformations maps ABC to AA'B'C. The sequence of transformations that maps A’B’C’ is

A (4,-4)
B (2, -8); and
C (6, -6)

followed by

A' (-2, 4)
B' (-2, 2)
C' (0, 6).

Learn more about transformation at:
brainly.com/question/2689696
#SPJ1

8 0

2 years ago

The circumference of a circle is 15n cm what is the area of the circle in terms of n

Mice21 [21]

Answer:

Area of circle is $\dfrac{225n^{2}}{4\pi} cm^{2}$

Step-by-step explanation:

Formula for circumference of circle is given as,

$C=2\pi r$

Given that C = 15 n cm,

Substituting the value,

$15n=2\pi r$

Solving above equation for r, divide both side by $2\pi$

$\dfrac{15n}{2\pi}=\dfrac{2\pi r}{2\pi}$

Simplifying,

$\dfrac{15n}{2\pi}=r$

Formula for area of circle is given as,

$A=\pi r^{2}$

Substituting the value of r,

$A=\pi \left(\dfrac{15n}{2\pi}\right)^{2}$

Squaring the parenthesis,

$A=\pi \left(\dfrac{225n^{2}}{4\pi^{2}}\right)$

Cancelling out the common term,

$A=\dfrac{225n^{2}}{4\pi}$

Therefore, area of circle in terms of n is $A=\dfrac{225n^{2}}{4\pi} cm^{2}$

5 0

4 years ago

Have a great wonderful fantastic amazingggg dayyyy!!!

SCORPION-xisa [38]

Answer: 176m^2

Step-by-step explanation:

The smaller rectangle is taking up space among the larger one. So in order to find the area of this shaded region, you need to subtract that smaller one from the larger one.

12 x 15 = 180

1 x 4 = 4

180 - 4 = 176m^2

6 0

4 years ago

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