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anzhelika [568]
3 years ago
11

Taliyah was scuba diving at 29 feet below sea level (–29). Then she swam up to 13 feet below sea level (–13). Solve the number s

entences to find Taliyah’s new location. (–29) – (–13)
Mathematics
1 answer:
kap26 [50]3 years ago
3 0

Answer:

-16

Step-by-step explanation:

So you want to change the - into a + and the negative sign before the 13 also into a plus. So it is -29 + 13 and that would be -16 ^.^ Hope this helped!!

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Tanx-cotx / sinxcosx =sec^2-csc^2x. Please show all steps. 
Katarina [22]
\bf \cfrac{tan(x)-cot(x)}{sin(x)cos(x)}\implies \cfrac{\frac{sin(x)}{cos(x)}-\frac{cos(x)}{sin(x)}}{sin(x)cos(x)}\implies \cfrac{\frac{sin^2(x)-cos^2(x)}{cos(x)sin(x)}}{\frac{sin(x)cos(x)}{1}}
\\\\\\
\cfrac{sin^2(x)-cos^2(x)}{cos(x)sin(x)}\cdot \cfrac{1}{sin(x)cos(x)}\implies \cfrac{sin^2(x)-cos^2(x)}{cos^2(x)sin^2(x)}
\\\\\\
\textit{and now, we distribute the denominator}
\\\\\\
\cfrac{sin^2(x)}{cos^2(x)sin^2(x)}-\cfrac{cos^2(x)}{cos^2(x)sin^2(x)}\implies 
\cfrac{1}{cos^2(x)}-\cfrac{1}{sin^2(x)}

and surely you know what that is

3 0
3 years ago
Simply the expression 3(2x+y)
Damm [24]

Answer:

6x + 3y

Step-by-step explanation:

3(2x + y)

6x + 3y

Bet of Luck!

4 0
3 years ago
Find the surface area of the prism​
3241004551 [841]

Answer:

<h2>SA = 5645cm²</h2>

Step-by-step explanation:

We have three pairs of congruent rectangles

9cm × 4m; 9cm × 5cm and 4m × 5cm

We know 1m = 100cm, therefore 4m = 400cm

The formula of an area of a rectangle l × w:

A = l · w

Substitute:

A₁ = 9cm · 4m = 9cm · 400cm = 3600cm²

A₂ = 9cm · 5cm = 45cm²

A₃ = 4m · 5cm = 400cm · 5cm = 2000cm²

Calculate the surface area:

SA = A₁ + A₂  + A₃

SA = 3600cm² + 45cm² + 2000cm² = 5645cm²

5 0
3 years ago
Read 2 more answers
R(x) = (500 + ax) (50 - bx)
o-na [289]

Answer:

x

=

−

500

b

−

50

a

+

R

±

√

250000

b

2

+

2500

a

2

−

100

a

R

+

1000

b

R

+

R

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50000

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Step-by-step explanation:

4 0
3 years ago
Please show your work
Vikentia [17]

next time, include pictures so people know what the other values of the problem is

5 0
3 years ago
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