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2 years ago

Plsssssssssssssss i need help

Mathematics

1 answer:

sp2606 [1]2 years ago

5 0

When looking at the angle, the sides adjacent and hypotenuse are given. This means we use the cos function. Since we are solving for an angle, we inverse the cos.

In calculator, type: cos^-1(6/8)

Answer is A 41.4°

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Select the correct answer from each drop-down menu. If u = 5 − 2i and v = 2 − 5i, u + v = and u− v = .

Alex Ar [27]

Answer:

u+v=7-7i

u-v=3+3i

Step-by-step explanation:

u+v

(5-2i)+(2-5i)

Put like terms together:

(5+2)+(-2i-5i)

Simplify:

7+-7i

7-7i

u-v

(5-2i)-(2-5i)

Distribute:

(5-2i)+(-2+5i)

Put like terms together:

(5-2)+(-2i+5i)

3+3i

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3 years ago

90:2=2x-10+ 3x-90<br> Solve for X plz

Vlad1618 [11]

20.4
Or for fraction form: 20 2/5

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4 years ago

What is the value of the expression 6<br> ( -11.5)?

telo118 [61]

Answer:

-69

Step-by-step explanation:

6(-11.5) looks like 6*-11.5 to me which is -69.

4 0

3 years ago

Read 2 more answers

Laurie and Maya sold at most $50 worth of get-well and friendship cards. The friendship cards, x, were sold for $2 each and the

stellarik [79]

Answer:

The point is (15,10)

Step-by-step explanation:

Given data:

cost of card $50

x card sold for $2

y card sold for $1.50

from the above information given above we have following relation

2x + 1.50y = 50

the above equation is linear, therefore to find the point to point out the number of card sold, hit and try method should be used. select the proper point (x, y) so that after putting in above equation there result must not be greater than 50

Try for (15,10)

$2 \times 15 + 1.50\times 10 \geq 50$

$45 \geq 50$

4 0

4 years ago

Please help, I'm stuck

nikdorinn [45]

I know you're looking for an answer but i'm doing a challenge where i have to answer 10 questions by the end of today, I'm sorry! :(

8 0

3 years ago