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2 years ago

SOMEONE PLEASEE HELP ME WITH THIS!!! I NEED TO GET DONE

Mathematics

1 answer:

klasskru [66]2 years ago

6 0

Answer:

B. 1

Step-by-step explanation:

$- \frac{1}{2} (10) + 6 = - 5 + 6 = 1$

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There are two non congruent triangles where B=55 degrees a=15 and b=13. Find the measures of the angles of the triangle with the

liq [111]

Answer:

The side c needs to be 12.85 for the triangle to have greatest perimeter

Step-by-step explanation:

We are given;

b = 13

a = 15

Angle at b: B = 55°

Let's find side c.

Using the law of cosines,we have;

b² = a² + c² - 2ac•cos(B)

13² = 15² + c² - 2•15•c•cos(55)

169 = 225 + c² - 30c•cos(55)

c² - 30c•cos(55) + 225 - 169 = 0

c² - 30c•cos(55) + 56 = 0

c² - 30c•(0.5736) + 56 = 0

c² - 17.208c + 56 = 0

Using quadratic formula;

c = [-(-17.208) ± √((-17.208)² - (4•1•56)]/2(1)

c = [17.208 ± √(296.115 - 224)]/2

c = 8.604 ± 4.246

To have the greater perimeter, we need the larger value of c, thus we will use the positive sign and ignore the negative one ;

Thus,

c = 8.604 + 4.246 = 12.85

5 0

3 years ago

HELP PLS I WILL MARK BRAINLYIiEST ASAP!!!!

kicyunya [14]

Answer: 50.84%

Step-by-step explanation:

(89-59) /59 = 0.5084/100 = 50.84%

8 0

3 years ago

Pls help I'm bad at math v.v<br><br> Lines m and n are parallel.

Eva8 [605]

Answer:

The measure of angle 1 is 55.

Step-by-step explanation:

The top angle= 75 because of the vertical angle theorem

The right angle= 50 because of the alternate exterior angle theorem

75+50=125

There are 180 degrees in a triangle so the angle has to equal 55

5 0

4 years ago

(7x10*5)x(3x10*2) in standerd form

marishachu [46]

Answer:

21,000

Step-by-step explanation:

This is more of straightforward multiplication, so I cannot explain much! If you want me to try to do more, then just comment.

(7 * 10 * 5) * (3 * 10 * 2)

= (70 * 5) * (30 * 2)

= (350) * (60)

= 21,000

Thusly, in standard form, the equation given is $\boxed{21,000}$ .

Hope this helps! (:

7 0

3 years ago

Find the surface area of the cylinder: Use 3.14 for

sleet_krkn [62]

Answer:

Well on my end i got 47.12, with pi included

Step-by-step explanation:

3 0

3 years ago