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2 years ago

Mathematics!! Can anyone help me with this? ^^

Mathematics

2 answers:

Maru [420]2 years ago

7 0

5. I thinks it’s mistake there and teacher meant 6y-5=59

6y=59+5
6y=64
y= 32/3

6.
7y=35-7
7y=28
y=4

Lyrx [107]2 years ago

4 0

6. 4
Steps: subtract 7 from both sides / so basically subtract 7 by 35 and you will get 28, now divide 28 by 7 and your should get 4!!
Also i love ur pfp!

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Help! If you know this can you tell me how to do it?

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

Here's how this works:

Get everything together into one fraction by finding the LCD and doing the math. The LCD is sin(x) cos(x). Multiplying that in to each term looks like this:

$[sin(x)cos(x)]\frac{sin(x)}{cos(x)}+[sin(x)cos(x)]\frac{cos(x)}{sin(x)} =?$

In the first term, the cos(x)'s cancel out, and in the second term the sin(x)'s cancel out, leaving:

$\frac{sin^2(x)}{sin(x)cos(x)}+\frac{cos^2(x)}{sin(x)cos(x)}=?$

Put everything over the common denominator now:

$\frac{sin^2(x)+cos^2(x)}{sin(x)cos(x)}=?$

Since $sin^2(x)+cos^2(x)=1$ , we will make that substitution:

$\frac{1}{sin(x)cos(x)}$

We could separate that fraction into 2:

$\frac{1}{sin(x)}$ × $\frac{1}{cos(x)}$

$\frac{1}{sin(x)}=csc(x)$ and $\frac{1}{cos(x)}=sec(x)$

Therefore, the simplification is

sec(x)csc(x)

5 0

3 years ago

Which of the following is a solution of y> lXI - 6?

xeze [42]

Answer:

Step-by-step explanation:

if you plug the coordinates into the function it is correct unlike the other options

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3 years ago

3) Veronica traveled 126 miles on 3 gallons of gas. On another trip she traveled 210 miles on 5 gallons of gas. Find the unit ra

Goshia [24]

The answer is 42 mpg, all you need to do is divide 126/3 or 210/5 and they both equal 42.

8 0

3 years ago

The distance around the lake is 0.75 mile.derek ran 0.8 of the distance on monday . how far did he run? the answer is 0.75 * 0.8

Elanso [62]

$0.75*0.8= \frac{75}{100} * \frac{8}{10} = \frac{75*8}{100*10} = \frac{600}{1000} = \frac{6}{10}=0.6$

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3 years ago

Read 2 more answers

You are in charge of managing the advertising for a restaurant. You are able to buy up to 62 advertisements a month, and your da

erik [133]

Answer:

Greatest number of newspaper ads = 59

Greatest number of television ads = 23

Step-by-step explanation:

It is given that we should buy at least 5 newspapers for every 3 television ads.

So, after purchasing 3 television ads, we can buy any number of television ads but the number should be greater than 5.

Since, the maximum is 62, we can buy 59 newspaper ads. (Note that we have already bought 3 television ads).

For every 3 television ads, we should buy 5 newspaper ads. So,

For the purchase of 3 television ads, we should buy the minimum of 5 newspaper ads.

For the purchase of 2(3) television ads, we should buy the minimum of 2(5) newspaper ads.

For the purchase of 3(3) television ads, we should buy the minimum of 3(5) newspaper ads.

...

For the purchase of 7(3) = 21 television ads, we should buy the minimum of 7(5) = 35 newspaper ads.

So, totally 21+35 = 56 ads.

For the remaining 6 ads, if we buy 3 television ads, we should buy 5 newspaper ads.

So, we can buy 2 television ads and 4 newspaper ads.

Hence, we can buy the maximum of 21+2 = 23 television ads.

7 0

3 years ago

Read 2 more answers