All categories

3 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

Mathematics

1 answer:

Artemon [7]3 years ago

8 0

Answer:

$\displaystyle 68$

Step-by-step explanation:

When plotted on the graph I showed you for the past few minutes, it will come out to approximately 68%.

I am joyous to assist you anytime.

You might be interested in

Which ones correct?

natima [27]

Answer:

Step-by-step explanation:

y = 4 is a horizontal line which would be parallel to the x axis

6 0

2 years ago

Derek owns a landscape business. He charges a fixed fee of $30 plus $1 per 1,000 square feet of lawn mowed. Derek's earnings (in

kodGreya [7K]

(174,000, 134,000, 420,000, 452,000, 474,000)

I don't know if i'm right for sure but I really hope this helps you! :)

7 0

2 years ago

Read 2 more answers

Which graph represents a linear function

valentina_108 [34]

Answer:

c on edge

Step-by-step explanation:

4 0

2 years ago

Given cosα = −3/5, 180 < α < 270, and sinβ = 12/13, 90 < β < 180

torisob [31]

I got

$- \frac{6 3}{65}$

What we know

cos a=-3/5.

sin b=12/13

Angle A interval are between 180 and 270 or third quadrant

Angle B quadrant is between 90 and 180 or second quadrant.

What we need to find

Cos(b)

Cos(a)

What we are going to apply

Sum and Difference Formulas

Basics Sine and Cosines Identies.

1. Let write out the cos(a-b) formula.

$\cos(a - b) = \cos(a) \cos(b) + \sin(a) \sin(b)$

2. Use the interval it gave us.

According to the given, Angle B must between in second quadrant.

Since sin is opposite/hypotenuse and we are given a sin b=12/13. We. are going to set up an equation using the pythagorean theorem.

${12}^{2} + {y}^{2} = {13}^{2}$

$144 + {y}^{2} = 169$

$25 = {y}^{2}$

$y = 5$

so our adjacent side is 5.

Cosine is adjacent/hypotenuse so our cos b=5/13.

Using the interval it gave us, Angle a must be in the third quadrant. Since cos is adjacent/hypotenuse and we are given cos a=-3/5. We are going to set up an equation using pythagorean theorem,

$( - 3) {}^{2} + {x}^{2} = {5}^{2}$

$9 + {x}^{2} = 25$

${x}^{2} = 16$

$x = 4$

so our opposite side is 4. sin =Opposite/Hypotenuse so our sin a =4/5.Sin is negative in the third quadrant so

sin a =-4/5.

Now use cosine difference formula

$- \frac{3}{5} \times \frac{5}{13} + - \frac {4}{5} \times \frac{12}{13}$

$- \frac{15}{65} + ( - \frac{48}{65} )$

$- \frac{63}{65}$

Hope this helps

6 0

2 years ago

Help me please!!!!!!!!!!!!!!!!!!!!!!!

strojnjashka [21]

Answer:

21 , 39
13 , 31
49 , 80
248 , 498
113 , 225

8 0

2 years ago

Read 2 more answers