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3 years ago

A snail can crawl 8 inches in 40 minutes,

Mathematics

2 answers:

Mumz [18]3 years ago

7 0

Answer:

$13 \: inches$

inessss [21]3 years ago

3 0

Answer: C. 13

Steps:
8 / 40 = 0.2 inches per minute

65 * 0.2 = 13

I would appreciate the brainliest if this was correct and helpful! :)

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Solve the inequality and graph the solution on the line provided.<br> -7x + 8< -6

HACTEHA [7]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-7x+8<-6 Equation/Question

Step 2

-7x+8<-6 Simplify

-7x+8<-6

Step 3

-7x+8<-6 Subtract 8

-7x<-14

Step 4

-7x<-14 Divide sides by -7

answer

x>2

Hope this helps

7 0

2 years ago

a glass of jar contains 1 red, 3 green and 2 blue marbles. asingle marble is chosen at random from the jar and its color is reco

lubasha [3.4K]

hi,

first let's count the marbles : 1+3+2 = 6

so picking a red is 1/6

a green is : 3/6

a bleu is : 2/6

4 0

3 years ago

Simplify each equation <br> (x^4)(x^2)

BartSMP [9]

Ok, so remember the exponentioal law that says
$( x^{m} )(x^{n})=x^{m+n}$ so

$( x^{4} )(x^{2})=x^{4+2}= x^{6}$

answe ris x^6

5 0

3 years ago

Read 2 more answers

A bicycle store installs about 400 tires per day. Tires are installed Monday through Friday for 8 hours per day. The owner of th

dalvyx [7]

Dividing the number of tires that should be installed per day which is 400 by the number of working hours which is 8 will give us 50 tires per hour. Assuming that the same mistake will take toll on the workers such that they will have 1 tire mistakenly installed in an hour, they will have 8 erroneous tires in a day. Multiplying this by 5 to make the answer per week will give 40. Out of the 400 x 5 = 2000 tires. The answer would be 2000 - 40 which is equal to 1940. The assumption must be valid.

6 0

3 years ago

Read 2 more answers

A demographer wants to measure life expectancy in countries 1 and 2. Let μ1 and μ2 denote the mean life expectancy in countries

Art [367]

Answer:

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: $\mu_1 \leq \mu_2 -10$

Alternative hypothesis: $\mu_1 > \mu_2 -10$

Or equivalently:

Null hypothesis: $\mu_1 - \mu_2 \leq 10$

Alternative hypothesis: $\mu_1 - \mu_2 >10$

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: $\mu_1 \leq \mu_2 -10$

Alternative hypothesis: $\mu_1 > \mu_2 -10$

Or equivalently:

Null hypothesis: $\mu_1 - \mu_2 \leq 10$

Alternative hypothesis: $\mu_1 - \mu_2 >10$

7 0

3 years ago