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Deffense [45]
4 years ago
6

Help me please I need help

Mathematics
1 answer:
cluponka [151]4 years ago
3 0

Answer:

A=5, B=3y

Step-by-step explanation:

Please see attached picture for full solution

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A true-false examination was constructed with the answers running in the following sequence: T F F T F T F T T F T F F T F T F T
julia-pushkina [17]

Answer:

yes

Step-by-step explanation:

lets use a significance level of = 0.1

<u> Determine if the sequence indicates randomness </u>

First step :

H0 : pattern is random

H1 : pattern not random

n1 ( number of true answers ) = 10

n2 ( number of false answers ) = 10

also number of runs for T = 5

       number of runs for F = 5

Total number of runs = 5+ 5 = 10

Given that critical value at 0.05 = 23

we will reject the null hypothesis ( i.e the sequence departs from randomness )

3 0
3 years ago
if karen was 27 and her oldest brother was 29 years older and and there dad was 22 when Karen was born how old is the dad?
g100num [7]

Answer:

49

Step-by-step explanation:

When Karen was born, the dad is 22 so Karen is now 27 which means the dad is 22+27= 49

8 0
3 years ago
Read 2 more answers
Is line 1 (1,5) (3,-2) and like 2 (-3,2) (4,0) perpendicular of parallel?
Lera25 [3.4K]
  • Slope Formula: \frac{y_2-y_1}{x_2-x_1}

So remember that <u>perpendicular lines have slopes that are negative reciprocals to each other</u> and <u>parallel lines have the same slope.</u> To find out if they are either parallel or perpendicular, plug the pair of points into the slope formula to find their slopes:

\textsf{Line 1}\\\\\frac{5-(-2)}{1-3}=-\frac{7}{2}\\\\\textsf{Line 2}\\\\\frac{0-2}{4-(-3)}=-\frac{2}{7}

Since these slopes aren't the same nor are they negative reciprocals to each other, <u>the lines are neither parallel nor perpendicular.</u>

7 0
3 years ago
Expand and simplify (x+3)(x-4)
Vinvika [58]

Answer:

the following term =

x { }^{2}  - x - 12

Step-by-step explanation:

here's the explanation in attached image.

i hope it helped

4 0
3 years ago
Read 2 more answers
Please someone help me on these 3 questions!! HELP ME I NEED HELP!!!!!
puteri [66]

Answer:

See below.

Step-by-step explanation:

1.) 5√6

2.) 6√2

3.) 3√7

To solve this without the use of a calculator, split the given number into a series of products (numbers multiplied) and look for pairs.

Look at the attached example of Problem 1 to get a better idea of what I mean.

3 0
3 years ago
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