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3 years ago

HELP ME PLEASE HURRY!!

Mathematics

1 answer:

Vikki [24]3 years ago

6 0

Answer:

1.81 meters

Step-by-step explanation:

You had them all up which comes out to 10.86

Then divide that by how many there is which is 6.

It come out to 1.81

Hope this helps

Brainliest would be appreciated

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Cindy works on the weekends at the local coffee shop. Last Saturday she worked 7.5 hours and

Arlecino [84]

Answer: H. 139.50

Step-by-step explanation:

Multiply 9 by 8 first and you get 72. Then multiply 9 by 7.5 and you get 67.5 then add 72 and 67.5 and you get 139.5 or 139.50

3 0

2 years ago

To prove :One plus cot square theta into tan theta by sec square theta = cot theta

pickupchik [31]

we are given

$\frac{(1+cot^2(\theta))*tan(\theta)}{sec^2(\theta)} =cot(\theta)$

We will simplify left side and make it equal to right side

Left side:

$\frac{(1+cot^2(\theta))*tan(\theta)}{sec^2(\theta)}$

we can use trigonometric identity

$1+cot^2(\theta)=csc^2(\theta)$

we can replace it

$\frac{(csc^2(\theta))*tan(\theta)}{sec^2(\theta)}$

we know that

csc=1/sin and sec=1/cos

so, we can replace it

and we get

$\frac{cos^2(\theta)tan(\theta)}{sin^2(\theta)}$

now, we know that

tan =sin/cos

$\frac{cos^2(\theta)*sin(\theta)}{sin^2(\theta)*cos(\theta)}$

we can simplify it

and we get

$\frac{cos(\theta)}{sin(\theta)}$

we can also write it as

$=cot(\theta)$

Right Side:

$cot(\theta)$

we can see that

left side = right side

so,

$\frac{(1+cot^2(\theta))*tan(\theta)}{sec^2(\theta)} =cot(\theta)$ ......Answer

6 0

3 years ago

3+[-(-8)]<br>simplified or evaluated

Semmy [17]

Answer:

Step-by-step explanation:

Double negative makes positive

6 0

3 years ago

Read 2 more answers

Find the area of the parallelogram.

Anit [1.1K]

Answer:

10 17/20 in ^2

Step-by-step explanation:

The area is

A = bh

= (7 3/4 ) * ( 1 2/5)

Changing to decimal form

7.75 * 1.4

10.85

Changing back to fraction form

10 85/100

10 17/20 in ^2

3 0

3 years ago

Read 2 more answers

Which set has the same mean, median, and mode?

Scilla [17]

Answer:

Step-by-step explanation:

Sets A and C have a mode of 12 and a median of 12.

Calculate the means:

Set A: Mean = (8+10+12+12+14+16 ) / 6 = 12

Set C: Mean = (6 + 6 +12+12+18+24 ) / 6 = 13

So the required set is A.

4 0

3 years ago