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Lesechka [4]
3 years ago
14

Need help (4v-4)° (5v-5)°

Mathematics
2 answers:
Naddika [18.5K]3 years ago
7 0
20v2-40v+20 I think. Hope this helps
lys-0071 [83]3 years ago
4 0

Answer:

20v2−40v+20

Step-by-step explanation:

=(4v+−4)(5v+−5)

=(4v)(5v)+(4v)(−5)+(−4)(5v)+(−4)(−5)

=20v^2−20v−20v+20

= 20v^2-40v+20

You can easily do this by using the FOIL method.

F - first -  in this case, 4v and 5v

O - Outside - in this case, 4v and -5

I - Inside - in this case, -4 and 5v

L - Last - In this case, -4 and -5

Then you find the like terms and add them together and then you have your answer which is also in standard form.

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Haroldo, Xerxes, Regina, Murray, Norah, Stav, Zeke, Cam, and Georgia are invited to a dinner party. They arrive in a random orde
Scilla [17]

Answer:

1/9

Step-by-step explanation:

Becuase there are 9 people invited, so they all have a 1/9 chance

6 0
3 years ago
Convert the following to sq. cm or to sq. m, as required.<br> 920 000 sq. cm= ______ sq. m​
polet [3.4K]

Answer:

The answer is 92

Step-by-step explanation:

1 m = 10,000cm

920,000/10,000=92

7 0
2 years ago
Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. Assume
Sphinxa [80]

Answer: (1.55, 6.45)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\overline\ {x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Significance level : \alpha: 1-0.99=0.01

Critical value : z_{\alpha/2}=2.576

Sample size : n=41

Sample mean : \overline{x}=4.0\text{ kg}

Standard deviation : \sigma=6.1\text{ kg}

Then, 99% confidence interval for population mean will be :_

4\pm\ (2.576)\dfrac{6.1}{\sqrt{41}}\\\\\approx4\pm2.45\\\\=(4-2.45, 4+2.45)=(1.55, 6.45)

8 0
4 years ago
Identify the equation of the translated graph in general form x^2+y^2=7 for T(-8,4) A. x^2 + y^2 + 16x - 8y + 73 = 0 B. x^2 + y^
Lunna [17]

Answer:

The correct option is A

Step-by-step explanation:

The standard form of equation of circle is written as:

(x - a)² + (y - b)² = r²

Where centers is given as (a,b)

The equation of the circle given in the question is:

x² + y² = 7

If the circle is translated T(-8,4), it means that the centre of translated circle lies at (-8,4).

So standard form of equation of circle is:

(x + 8)² + (y - 4)² = 7

Simplifying the equation:

(x² + 64 + 2(x)(8)) + (y² + 16 - 2(y)(4)) = 7

x² + 64 + 16x + y² + 16 - 8y = 7

x² + y² + 16x - 8y + 80 = 7

x² + y² + 16x - 8y + 80 - 7 = 0

x² + y² + 16x - 8y + 73 = 0

which is the general form of the equation of circle

3 0
3 years ago
Please answer it please help me please answer it correctly if it’s correct I will mark you brainliest
mrs_skeptik [129]

Answer:

80

Step-by-step explanation:

To determine the tip, take the original amount and multiply by the tip percentage

500 * 16%

Change the percentage to a decimal

500 *.16

80

She tips 80

5 0
3 years ago
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