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2 years ago

Please help anyone PLSSSSS with my questions anyone can help me and plsss no links and pls with whole procedure pls

Mathematics

1 answer:

mart [117]2 years ago

3 0

Answer:

In my sketch the angle between their flights is 135°

So wouldn't we just have the cosine law??

x^2 = 120^2 + 150^2 - 2(120)(150)cos135°

carry on, take care with the cos135, since it will be negative

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What is the length of MN? 52 units 6 units 4 units 10 units PLEASE HELP

Sladkaya [172]

Answer:

√52 units

Step-by-step explanation:

The segment MN is the hypotenuse of a right triangle that is 6 units wide and 4 units high. The Pythagorean theorem tells you its length is ...

MN = √(6² +4²) = √(36 +16)

MN = √52

6 0

2 years ago

Find the pattern and identify the next 3 terms in the sequence 5, -10, 20...

Marta_Voda [28]

Answer:

-40, 80, -160

Step-by-step explanation:

5(-2)^n-1

where n is the position

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2 years ago

How many solutions does this problem have Y=-2x -4 Y= 3x plus 3

S_A_V [24]

Answer:

There is one possible solution

Step-by-step explanation:

Here, we want to get the number of solutions

We can proceed to solve the equation

we have two y values so we can directly equate the x parts

-2x - 4 = 3x + 3

3x + 2x = -3-4

5x = -7

x = -7/5

To get y, we substitute

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So we have a point (x,y) as the solution to the system of equations

7 0

2 years ago

Suppose that we are testing a coin to see if it is fair, so our hypotheses are: H0: p = 0.5 vs Ha: p ≠ 0.5. In each of (a) and (

aleksley [76]

Answer:

$H_0: p = 0.5\\H_a: p \neq 0.5$

a. We get 56 heads out of 100 tosses.

We will use one sample proportion test

x = 56

n = 100

$\widehat{p}=\frac{x}{n}$

$\widehat{p}=\frac{56}{100}$

$\widehat{p}=0.56$

Formula of test statistic = $\frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

= $\frac{0.56-0.5}{\sqrt{\frac{0.5(1-0.5)}{100}}}$

= $1.2$

refer the z table for p value

p value = 0.8849

a. We get 560 heads out of 1000 tosses.

We will use one sample proportion test

x = 560

n = 1000

$\widehat{p}=\frac{x}{n}$

$\widehat{p}=\frac{560}{1000}$

$\widehat{p}=0.56$

Formula of test statistic = $\frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

= $\frac{0.56-0.5}{\sqrt{\frac{0.5(1-0.5)}{1000}}}$

= $3.794$

refer the z table for p value

p value = .000148

p value of part B is less than Part A because part B have 10 times the number the tosses.

6 0

2 years ago

What is the time that is 4 hours and 45 minutes after 4:25am

spayn [35]

4:25
60 mins in 1 hour
4 hours after 4:25=8:25
45 mins+8:25
45+25=70
70=60+10
60=1 hour
add 1 to 8
9
9:10 am is the answer

4 0

2 years ago