3 years ago

3(2x + 1) - 5(x + 2) = ANSWER: x - 7 True Or False?

Mathematics

1 answer:

zhuklara [117]3 years ago

8 0

I think the answer is true

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Na figura, r//s. O valor, em graus, de a+b é: a)180 b) 196 c) 216 d) 240

Nastasia [14]

216. hope this helps you.

4 0

3 years ago

keith is an independent filmmaker . hes planning to serve pizza and sub sandwiches at his first film debut . the number of sandw

tamaranim1 [39]

Answer:

35 sandwiches

Step-by-step explanation:

62÷2=31

31+4=35

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3 years ago

One of the giraffes, Bernard, is sick. Last week he weighed 2,490 pounds. This week he weighs 2,312 pounds. If w represents the

victus00 [196]

Answer:

$w+2,312=2,490$

$w=178\ pounds$

Step-by-step explanation:

Let

w ----> the amount of weight lost in pounds

we know that

The amount of weight Bernard lost plus the weight of this week must be equal to the weight of the last week

The linear equation that represent this situation is

$w+2,312=2,490$

solve for w

subtract 2,312 both sides

$w=2,490- 2,312=178\ pounds$

4 0

2 years ago

Read 2 more answers

a player gets to throw 4 darts at the target shown. Assuming the player will always hit the target, the probability of hitting a

padilas [110]

Answer:

3.375

Step-by-step explanation:

(3/5)^3 / (2/5)^3 = 3.375

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3 years ago

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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

3 years ago