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2 years ago

Subtact: (9x + 5) - (4x + 3)

Mathematics

1 answer:

jek_recluse [69]2 years ago

8 0

Answer:

5x+2

Step-by-step explanation:

(9x+5)-(4x+3)

5x+2

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From a point 114 m away from a building, Serena measures the angle between the

irga5000 [103]

Answer:

4900

Step-by-step explanation:

so what you're going to do first is you're going to do 114* 43 which equals 4902 then you round that and you're going to have 4900I am not a hundred percent sure

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2 years ago

What is the exact length of the missing side of the triangle if the legs are 12 cm and 13 cm?

xxTIMURxx [149]

Answer:

25 cm

Step-by-step explanation:

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1 year ago

In a group of people, some are in favor of a tax increase on rich people to reduce the federal deficit and others are against it

jek_recluse [69]

Answer:

There will be 8 possible outcomes.

Step-by-step explanation:

(Assume that there is no other outcome such as "no opinion" and "do not know.")

3 persons are selected at random from this group and their opinions in favor or against raising such taxes are noted.

So, the number of possible outcomes are = $2\times2\times2=8$

YYY, YYN, YNY, NYY, YNN, NNY, NYN, NNN

Y = Yes and N = No

Therefore, there will be 8 possible outcomes.

4 0

2 years ago

Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f

STALIN [3.7K]

Answer: b) 84

Step-by-step explanation:

Let p be the prior estimate of the required proportion.

As per given , we have

p =0.5 (The probability of getting heads on a fair coin is 0.5)

Significance level : $\alpha: 1-0.90=0.10\\$

Critical z-value (using z-value table ) : $z_{\alpha/2}=1.645$

Confidence interval width : w= 0.18

Thus , the margin of error : $E=\dfrac{w}{2}=0.09$

Formula to find the sample size ( if prior estimate of proportion is known.):-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

Substitute the values , we get

$n=0.5(1-0.5)(\dfrac{1.645}{0.09})^2$

Simplify ,

$n=83.5192901235\approx84$ [Round of to the next whole number.]

Hence, the number of times we would have to flip the coin =<u>84</u>

hence, the correct answer is b) 84

8 0

2 years ago

If you do 2+2 does it equal 22? or am i dum?

VMariaS [17]

I thought it was eight bro;;-;

8 0

2 years ago

Read 2 more answers

Subtact: (9x + 5) - (4x + 3)​

Subtact: (9x + 5) - (4x + 3)