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2 years ago

Are the ratios 7:11 and 9:13 equal?

Mathematics

2 answers:

Gemiola [76]2 years ago

7 0

No, because 7/11 = 0.63 repeating and 9/13 = 0.69

Shtirlitz [24]2 years ago

6 0

No because 7/11 is 0.(63) and 9/13 is 0.692

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What is the equation in point-slope form of the line that passes through the point (-1, -4) And has a slope of -3?

Reptile [31]

Point-slope form is $y- y_{1} =m(x- x_{1} )$ where y1 and x1 are your points from the coordinate and m is the slope. So yours would look like this: y-(-4)=-3(x-(-1)) or y + 4 = -3(x + 1)

5 0

2 years ago

Match each of the trigonometric expressions below with the equivalent non-trigonometric function from the following list. Enter

andreev551 [17]

Answer:

Step-by-step explanation:

In each case, draw the right triangle which produces the inverse trig value. That is, label the two sides as needed, and calculate the third side.

It should be clear that

$tan(sin^{-1} x/4) = x/\sqrt{16-x^{2} }$

$sin(tan^{-1} x/4) = x/\sqrt{16+x^{2} }$

sin(2α) = 2 sinα cosα

So,

$1/2 sin(2sin^{-1} x/4) = (1/2)(x/4) * x/\sqrt{16-x^2} = x^{2} /(8\sqrt{16-x^2})$

See what you can do with the others.

6 0

3 years ago

I need help with 10,11,12

pshichka [43]

10. 50 is roughly around ~16% of 300. (16% is 50.1)

11. 35% of 150 would be 52.5

12. 80 is 200% of 40

3 0

3 years ago

Read 2 more answers

6+7=10 13+8=18 32+21=32 11+34=0 31+03=? process please

Stella [2.4K]

Answer:

6+7=13

13+8=21

32+21=52

11+34=46

31+03=34

Step-by-step explanation:

im not sure in the 31+03

4 0

2 years ago

If 55% people in a city like Cricket, 30% like Football and the remaining like nother games, then what per cent of the people li

labwork [276]

$\large{\dag\:{\underline{\underline{\frak{\pmb{\red{Answer:-}}}}}}}$

Cricket = 55%
Football = 30%
Other games = Remaining (?)

So, the percent of people who like other games equals:

= 100 – (55 + 30)

= 100 – 85

= 15%

If the total no. of. people is 60,00,000:

★ Cricket

= 60,00,000 × 55/100

= 33,00,000

★ Football

= 60,00,000 × 30/100

= 18,00,000

★ Other sports

= 60,00,000 × 15/100

= 9,00,000

6 0

2 years ago