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2 years ago

Explain plssssssssssssssss

Mathematics

1 answer:

irina [24]2 years ago

7 0

So the problem is asking you to combine equations, in this case the Y factor will cancel out so you will be left with the X factor and the total after you add both of the totals together,
6x-4y=16
5x+4y=6
6x-5x=x
16+6=22
x=22

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Somebody please help ASAP!!!

Ad libitum [116K]

Answer:

2x+40 is what it simplifies down to

Step-by-step explanation:

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2 years ago

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Can someone please help me and explain. This is on my quiz today and she didn't explain

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Step-by-step explanation:

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2 years ago

Find the value of x° 40° 65° 70° 100°

Solnce55 [7]

Answer:

= 40°

Step-by-step explanation:

180-115=65°

65+75=140°

180-140=40°

=40°

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Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workfor

leva [86]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The confidence level interval is $0.016 \le C \le 0.404$

Step-by-step explanation:

The sample size is $n = 20$

The number planning to increase workforce is $x = 3$

The confidence level is $c = 98$ %

The value of proportion for a plus 4 method is

$p = \frac{x+2}{n+4}$

substituting values

$p = \frac{3+2}{20+4}$

$p =0.21$

The z-critical value at confidence level of 98% is

$z_{c}=z_{0.98} = 2.33$

This values is obtained from the standard normal table

The confidence level interval can be mathematically represented as

$C =p \ \pm z_{c} * \sqrt{\frac{p(1-p)}{n+4} }$

substituting values

$C = 0.21 \pm 2.33 * \sqrt{\frac{0.21(1- 0.21)}{20 +4} }$

$C = 0.21 \pm 0.194$

=> $0.016 \le C \le 0.404$

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2 years ago

Round your answer to the tenths place!!

zysi [14]

For this case we apply the Pythagorean theorem, clearing the height we have:

$h = \sqrt {d ^ 2-w ^ 2}$

According to the data we have:

$d = 13.3 \ in\\w = 11.3 \ in$

Substituting:

$h = \sqrt {(13.3) ^ 2- (11.3) ^ 2}\\h = \sqrt {176.89-127.69}\\h = \sqrt {49.2}\\h = 7.014$

We round and we have the height is $7.0 \ in$

Answer:

Option B

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2 years ago

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