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2 years ago

Please answer these questions! i’ll give brainliest to the first person who finishes!!

Mathematics

1 answer:

denis23 [38]2 years ago

8 0

9Answer:

1. √25 = 5, √100 = 10

2. 5² = 25

3. 11² = 121

4. 9² = 81

5. √100 = 10

6. √144 = 12

7. √49 = 7

8. 1

9. 144

10. 4

11. 5

12. 35² = 1225

13. 56² = 3136

14. 64² = 4096

15. √289 = 17

16. √400 = 20

17. √500 = 22.36067977

18. 28

19. 10

20. 49

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A packed box that is being shipped will be weighed in order to calculate the correct postage needed. The total weight of a packe

ivolga24 [154]

Answer:

Step-by-step explanation:

Total Weight of the package = weight of product + weight of box

Weight of empty box =0.88lb

Total weight of the box is =7.24lb

Let Weight of product inside box=w

Let wet of empty box =y

Total weight = F

Then,

F=y+w

Since F=7.24lb. y=0.88

Then, w=F-y

w=7.24-0.88

w=6.36lb

The weight of the product is 6.36lb

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2 years ago

What is the solution to 9x−6<21?

OverLord2011 [107]

Answer:

x < 3

Step-by-step explanation:

Solve it like a normal equation

Isolate the variable along with its constant

9x - 6 + 6< 21 + 6

9x < 27

Isolate the variable its self

9x/9 < 27/9

x < 3

<h2>REMEMBER : ONLY FLIP THE INEQUALITY SIGN WHEN <u>MULTIPLYING</u> OR <u>DIVIDING</u> BY A <u>NEGATIVE NUMBER</u></h2>

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2 years ago

Please help i have so many timed quizzes

barxatty [35]

5.5x+9

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5 0

3 years ago

Read 2 more answers

What is 1/6x=4 in solving equations with rational coefficients

Debora [2.8K]

To solve an equation with a rational (fraction) coefficient you need to multiply both sides of the equation by the reciprocal (invert the fraction - flip it).

$\frac{1}{6}x =4$ The reciprocal of 1/6 is 6/1 or 6
$6( \frac{1}{6} x)= 6(4)$ The product of reciprocals equals 1
1x = 24
x = 24

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3 years ago

A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the followin

maks197457 [2]

Answer:

(a) $\sum x_i=56.68$ and $\sum x_i^2=197.46$

(b) The sample variance is $s^2=0.530$ and the sample standard deviation is $s=0.728$

Step-by-step explanation:

(a)

The sum of these 17 sample observations is

$\sum x_i=2.79\:+2.57+\:2.73\:+3.75\:+2.27+\:2.75+\:4.00+\:4.22+\:3.88+\:4.35+\:3.41+\:4.57+\:2.38+\:3.73\:+2.75+\:3.47+\:3.06\\\\\sum x_i=56.68$

and the sum of their squares is

$\sum x_i^2=2.79^2\:+2.57^2+\:2.73^2\:+3.75^2\:+2.27^2+\:2.75^2+\:4.00^2+\:4.22^2+\:3.88^2+\:4.35^2+\:3.41^2+\:4.57^2+\:2.38^2+\:3.73^2\:+2.75^2+\:3.47^2+\:3.06^2\\\\\sum x_i^2=197.46$