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evablogger [386]
3 years ago
9

If ABC is a straight line and angle CBD=119 work out the value of x

Mathematics
1 answer:
pickupchik [31]3 years ago
8 0

Answer:

provide the diagram

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Find the area of the triangle that has a base of 16 yd and a height of 9yd
soldi70 [24.7K]

Answer:

144 yds.

Step-by-step explanation:


6 0
3 years ago
Graph the system below and write its solution<br><br>(2x+y=-4<br>(y=-1/2x+2​
Travka [436]
The solution is (-4,4)

Explanation: just plug both equations into desmos; the solution is found by looking at where the graphs of 2x+y=-4 and y=-1/2x+2 intersect.
7 0
3 years ago
A consumer products company is formulating a new shampoo and is interested in foam height (in millimeters). Foam height is appro
Pavel [41]

Answer:

The answers to the questions are

(a) P = 0.0176

(b)  P = 0.5

(c)  P = 0.0571

Step-by-step explanation:

The P value is the calculated probability of obtaining extreme reults which are as extreme as observed res ult when the study null hypothesis H₀ is true

The p value is given by

P (\overline{\rm x} = 185 when μ = 175)

z =  \frac{ \overline { \rm x} -\mu}{\sigma /\sqrt{n} }

z(\overline { \rm x} = 185)  = \frac{ 185 -175}{20/\sqrt{10} } = 1.5811

Therefore the P (\overline{\rm x} = 185 when μ = 175) =  P(z = 1.5811)  

    0.94295

The probability density function is

f(x) = \frac{1}{\sigma\sqrt{2\pi } } e^{-\frac{1}{2}(\frac{x-\mu}{\sigma} )^2 } Therefore the probability is

f(x) = \frac{1}{20\sqrt{2\pi } } e^{-\frac{1}{2}(\frac{185-175}{20} )^2 } = 0.0176  

b) The type II error is given by

β = P(type II error) = P(Fail to reject the null hypothesis when it is false)

Therefore

β = P (\overline { \rm x} < 185 when μ = 185)

P(\frac{ \overline { \rm x} -\mu}{\sigma /\sqrt{n} }, which gives

P(z<0) and β = 0.5

(c) For true mean foam height of 195 mm we have

β = P (\overline { \rm x} < 185 when μ = 195)

and P(\frac{ \overline { \rm x} -\mu}{\sigma /\sqrt{n} }

Which gives P(z < -1.58)

From z table the probability is       β = 0.0571

3 0
3 years ago
Here is the other question i was gonna mention, Ace =.= i would put it in the comments but i dont want to deal with brainly bein
navik [9.2K]

Answer:

a.) 9, -9

b.) 2(sqrt)15, -2(sqrt)15

c.) 4, -2+2i(sqrt)3, -2-2i(sqrt)3

d.) 3(sqrt)75

(some of the numbers are placed differently than I wrote them so here are screenshots- pls look at them rather than what I wrote ;w;)

3 0
2 years ago
What's the answer to this question because we haven't yet went over this in class but I'm trying to be ahead and figure out how
eimsori [14]
When two parallel lines are intersected by another straight line, the inner angles are = 180

so (20x+5) + (24x-1) = 180

solve from there
4 0
4 years ago
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