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3 years ago

Solve the equation. 6n + n + n - 3 = 4 + 3n + n + 1

2 answers:

7 0

1. Combine like terms.
$8n - 3 = 5 + 4n \\ (8n - 3) + 3 = (5 + 4n) + 3 \\ (8n) - 4n = (8 + 4n) - 4n \\ 4n = 8$
Now divide both sides by 4 to get:
$n = 2$

Alborosie3 years ago

4 0

So first add the common terms
13n
And then add 3,4and 1 equals 8
And then divide 8 by 13 and u get 0.615

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A trapezoid has an area of 20 cm2 and a height z cm. The lengths of the parallel sides are (2z + 3) cm and (6z – 1) cm. Find the

Brums [2.3K]

Answer: 2.11cm

Step-by-step explanation:

Given the following :

The lengths of the parallel sides are (2z + 3) cm and (6z – 1) cm

The area of trapezoid is calculated using the formula:

1/2(a + b) × h

Where ;

a = Length of side 1

b = length of side 2

h = height

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Therefore ;

1/2 (2z + 3 + 6z - 1) × z

Opening the bracket

(z + 1.5 + 3z - 0.5) × z

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Using Quadratic formula:

4z^2 + z - 20 = 0

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(-b±√b^2 -4ac) / 2a

Z = 2.11 or - 2.364

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3 years ago

What will happen to the measures of central tendency if the outlier is removed

frosja888 [35]

It decreases the number of data by one.

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2 years ago

Please HELP ASAP!!! The dot plot show the number of hours teenagers spent on two different websites last week. Which statement i

Delvig [45]

Answer:

(F.) the mode of the data for website K is greater than the mode of the data from website L

Step-by-step explanation:

Mode simply means the parameter that occurs the most.

In website K, the one that occurs the most is 8 hours while in website L, the one that occurs the most is 2 hours.

This means that mode of website K is greater than that of website L.

Thus,statement F is correct

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For website K, Range = 14 - 1 = 13

For website L, Range = 13 - 1 = 12

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Skewed to the left means that more o

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For website L, more dot points are located to the left while for website K, it's not the case. Thus, statement J is not correct

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3 years ago

Read 2 more answers

Hi everyone I was wondering if someone could please help me out with this problem and explain it to me

PSYCHO15rus [73]

Join the centre O to the chord (let it be MN) & let OH be the perpendicular to the chord

OH bisects MN into 2 equal parts (each one is x/2)
OMH is a right triangle with one side =8, the second leg =x/2 & the hypotenuse = 12 (Radius)
Apply Pythagoras:

12² = 8² +(x/2)² ==>144=64 + x²/4 ==> x²=4(144-64) =320

x²=320==> x=√320 =17.88 ≈17.9

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