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3 years ago

Biological factors that may influence the onset of a personality disorder include all of the following except

Mathematics

2 answers:

viva [34]3 years ago

6 0

Answer:

Not D or B

Step-by-step explanation:

Genetic influences play a part in many mental and personality disorders. Reduce frontal-lobe activity is a characteristic of many disorders such as alcohol dependence.

frez [133]3 years ago

5 0

Answer: A

Step-by-step explanation:

Just took the test and the obv answer that makes the most sense is a

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Find the sum of the first 30 multiples of 8.

Anna11 [10]

Step-by-step explanation:

sum of the arithmetic sequence

a1 = 8

a2 = a1 + 8 = 8+8 = 16

...

an = 8×n

the sum of the first n elements of such a series is

n/2 × (2×a1 + (n - 1)×d]

with d being the difference between 2 consecutive elements (= the added constant).

so,

s30 = 30/2 × (2×8 + 29×8) = 15×(31×8) = 3720

3 0

2 years ago

What is the value of x (x+2)(x-3)=0

wolverine [178]

Answer:

x = 3 or x = -2

Step-by-step explanation:

Solve for x over the real numbers:

(x + 2) (x - 3) = 0

Hint: | Find the roots of each term in the product separately.

Split into two equations:

x - 3 = 0 or x + 2 = 0

Hint: | Look at the first equation: Solve for x.

Add 3 to both sides:

x = 3 or x + 2 = 0

Hint: | Look at the second equation: Solve for x.

Subtract 2 from both sides:

Answer: x = 3 or x = -2

8 0

3 years ago

When servicing a heating boiler and radiators, a plumer knows that the time he will take is given by the formula

Allushta [10]

Answer:

£110

Step-by-step explanation:

We know how much time it takes for a boiler and a radiator, and we need to know how much it will cost for 1 boiler and 4 radiators. We have an initial cost of £30, and since hes doing a boiler - which we know takes an hour - we can already add £20 for a start of £50.

Now, there are 4 radiators, that take 45 minutes each. We need to use this equation:

$(45*4)/60$

We divide by 60 because there are 60 minutes in an hour, and he charges by hour. So:

$180/60=3$

Now, to find out how much to charge, we need to figure out how much to add to the £50. Since it's £20 an hour, and it takes 3 hours to do the 4 radiators, we need to multiply:

$3*20=60$

Now we add our totals for a grand total of...

$50+60=110$

6 0

3 years ago

How many solutions can be found for the linear equation?<br><br> 4(x + 5) - 5 = <br> 8x + 18<br> 2

Elena L [17]

Answer:

$4x + 20 - 5 = 0 \\ 4x + 15 = 0 \\ 4x = - 15 \\ x = - \frac{15}{4}$

Step-by-step explanation:

$8x + 18 = 0 \\ 8x = - 18 \\ x = - \frac{18}{8} \\ x = - \frac{9}{4}$

7 0

2 years ago

Evaluate log12 - log4 + log5 and can you explain it to me?

mario62 [17]

Remember some simple log rules

$log(a)+log(b)=log(ab)$
and
$log(a)-log(b)=log(\frac{a}{b})$

work from left to right

$log(12)-log(4)+log(5)=$
$log(\frac{12}{4})+log(5)=$
$log(3)+log(5)=$
$log(3*5)=$
$log(15)$

7 0

2 years ago