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3 years ago

Please helppppppppp idk know it

Mathematics

2 answers:

7nadin3 [17]3 years ago

7 0

Answer:

6.56- 6.6
6.723- 6.7
6.538- 6.5
6.647- 6.6
6.49- 6.5
6.687- 6.7

<em>Hope this helps and would appreciate if you would add me as brainiest</em>

VladimirAG [237]3 years ago

6 0

Answer:

hijimihi himinioj gun

Step-by-step explanation:

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Victor has 200 Hot<br>Cheetos and eats 3 a<br>minute. How long until<br>there are only 20 left?

12345 [234]

Answer:

1 hour

Step-by-step explanation:

If he eats 3 Cheetos a minute, then by the first hour he would have eaten 180.

60 x 3= 180

6 0

3 years ago

Write the expression as either the sine, cosine, or tangent of a single angle.

lana66690 [7]

The expression is:
cos (π / 5) cos (π/7) + sin (π/5) sin(π/7)

This expression can be reduced into a trigonometric function with one angle if we make use of the trigonometric identities. The appropriate identity is:
cos (A - B) = cos A cos B + sin A sin B

If we let
A = π / 5
B = π / 7

Therefore,
cos (π / 5) cos (π/7) + sin (π/5) sin(π/7) = cos (π/5 - π/7) = cos (2π/35)

4 0

4 years ago

Read 2 more answers

What is the volume of a cone with a height of 27 cm and a radius of 13 cm? Round your answer to the nearest tenth

Viefleur [7K]

Answer:

$\huge\boxed{\sf V = 4778.4\ cm\³}$

Step-by-step explanation:

<u>Given:</u>

Height = 27 cm

Radius = 13 cm

<u>Formula:</u>

$Volume \ of \ cone \ V = \frac{1}{3} \pi r^2h$

<u>Solution:</u>

V = 1/3 (3.14)(13)²(27)

V = (3.14)(169)(9)

V = 4778.4 cm³

$\rule[225]{225}{2}$

Hope this helped!

<h3>~AH1807</h3><h3>Peace!</h3>

5 0

3 years ago

Four less than the product of 2 and a number is the same as negative eightteen. Find the number

dolphi86 [110]

Answer:

Step-by-step explanation:

4-2x=-18

-4 -4

-2x=-24

-2 -2

x=12

6 0

3 years ago

The amount of time people spend exercising in a given week follows a normal distribution with a mean of 3.8 hours per week and a

Travka [436]

Answer:

i and iii) In the figure attached part a we have the illustration for the area required for the probability of less than 2 hours and in b the illustration for the probability that X would be between 2 and 4

ii) $P(X$

And using the normal standard table or excel we got:

$P(z$

iv) $P(2$

And we can find the probability with the following difference and usint the normal standard distirbution or excel and we got:

$P(-2.25$

Step-by-step explanation:

Let X the random variable that represent amount of time people spend exercising in a given week, and for this case we know the distribution for X is given by:

$X \sim N(3.8,0.8)$

Where $\mu=3.8$ and $\sigma=0.8$

Part i and iii

In the figure attached part a we have the illustration for the area required for the probability of less than 2 hours and in b the illustration for the probability that X would be between 2 and 4

Part ii

We are interested on this probability:

$P(X$

We can use the z score formula given by:

$z=\frac{x-\mu}{\sigma}$

Using this formula we have:

$P(X$

And using the normal standard table or excel we got:

$P(z$

Part iv

We want this probability:

$P(2$

Using the z score formula we got:

$P(2$

And we can find the probability with the following difference and usint the normal standard distirbution or excel and we got:

$P(-2.25$

3 0

4 years ago