All categories

3 years ago

A garden snail traveled 1⁄40 of a mile in 1⁄2 an hour. What was the speed of the snail?

2 answers:

6 0

D = r* t
(1/40)= r * (1/2)
To solve multiply both sides by the reciprocal of (1/2) which is 2.
2(1/40) = r * (1/2)(2/1)
2/40 = r
1/20 mph = r

photoshop1234 [79]3 years ago

3 0

2/40 miles per hour.

Hoped I helped!

You might be interested in

WILL GIVE BRAINLIEST. please help

kondor19780726 [428]

Answer:

x = 11.4 m

y = 21 m

man's shadow = 9.6 m

Step-by-step explanation:

measure of third angle must be 50 degrees (180 - (40 + 90))

you can take tan50° = 15/y and 'y' will equal approx. 21

to find 'x' you can take tan21° = (21-x) /25 and 21 - x = 25 · tan21°

21 - x = 9.6

-x = -11.4

x = 11.4

man's shadow is the difference of 21 and 11.4, which is 9.6

4 0

2 years ago

Twenty years ago a small town in Texas had a population of 10,000. The population has increased 8% each year since then. What eq

andrezito [222]

Answer:

yea

Step-by-step explanation:

4 0

2 years ago

Using the distance formula, calculate how far Tre threw the ball. (4 points: 2 points for setup, 1 for calculation, 1 for the an

sergij07 [2.7K]

Answer:

$D = 63.717$

Step-by-step explanation:

The details that complete the question are:

$(x_1,y_1) = (0,42.78)$

and

$(x_2,y_1)=(90,42.78)$

Required

Determine how far the ball travelled

Distance is calculated using:

$D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Substitute values for x's and y's

$D = \sqrt{(42.78 - 0)^2+(42.78-90)^2}$

$D = \sqrt{42.78^2+(-47.22)^2$

$D = \sqrt{1830.1284+2229.7284$

$D = \sqrt{4059.8568$

$D = 63.717$

Hence, the ball travelled a distance of 63.717 units

6 0

2 years ago

An electrical rm manufactures light bulbs that have a life span that is approximately normally distributed. The population stand

stira [4]

Answer:

The 't' test statistic = 1.46 < 1.69

The test of hypothesis is H 0 :μ = 800 is accepted

A sample of 30 bulbs are found came from average µ= 800

Step-by-step explanation:

Step 1:-

Given population of mean μ = 800

given size of small sample n =30

sample standard deviation 'S' = 45

Mean value of the sample χ = 788

Null hypothesis $H_{0} =$ µ =800

alternative hypothesis $H_{1} =$ µ ≠ 800

Step 2:-

The 't' test statistic t = $\frac{x-μ}{\frac{sig}{\sqrt{n} } }$

$t = \frac{788-800}{\frac{45}{\sqrt{30} } }$

t = $\frac{12}{8.215}$ = 1.4607

Step 3:-

The degrees of freedom γ = n-1 = 30-1 =29

From "t" value from table at 0.05 level of significance ( t = 1.69)

The calculated value t = 1.4607 < 1.69

Therefore The null hypothesis H_{0} ' is accepted.

conclusion:-

A sample of 30 bulbs are came found from average µ= 800

7 0

3 years ago

The illustration below is of the circle (x + 6)2 + (y + 7)2 = 4. True False

mafiozo [28]

True true true true true

3 0

2 years ago

Read 2 more answers