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Liula [17]
2 years ago
11

How to solve this problem and the answer.

Mathematics
2 answers:
weqwewe [10]2 years ago
8 0
I’m not sure sorry cau
mart [117]2 years ago
3 0
3(-5) = -15
n^5+n^3 = n^8
z^9+z^6 = z^15

= -15n^8z^15
----------------------
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Julli [10]

1) 15 + 70 - 25/36-6

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= 60/30

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8 0
3 years ago
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The picture shows a triangular island:
sergiy2304 [10]

Answer:

The expressions that show the value of q are

1) q=\sqrt{r^{2}+s^{2}}

2) q=\frac{s}{cos(55\°)}

3) q=\frac{r}{sin(55\°)}

4) q=\frac{s}{sin(35\°)}

5) q=\frac{r}{cos(35\°)}

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

case A)

In the right triangle of the figure

Applying the Pythagoras Theorem

q^{2}=r^{2}+s^{2}

q=\sqrt{r^{2}+s^{2}}

case B)

In the right triangle of the figure

cos(55\°)=\frac{s}{q}

solve for q

q=\frac{s}{cos(55\°)}

case C)

In the right triangle of the figure

sin(55\°)=\frac{r}{q}

solve for q

q=\frac{r}{sin(55\°)}

case D)

In a right triangle

if A+B=90\°

then

cos(A)=sin(B)

therefore

q=\frac{s}{cos(55\°)}------> q=\frac{s}{sin(35\°)}

q=\frac{r}{sin(55\°)} ------>  q=\frac{r}{cos(35\°)}

4 0
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Answer:

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Step-by-step explanation:

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