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3 years ago

Math question (working too, if possible)

Mathematics

1 answer:

Alecsey [184]3 years ago

7 0

0.015 x 600 =9 so more than expected

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Simplify sin^2y/sec^2 y−1 to a single trigonometric function

liubo4ka [24]

Answer:

$\frac{ { \sin}^{2} y}{ { \sec}^{2}y - 1 } = { \cos }^{2} y$

Step-by-step explanation:

We know that ${ \tan }^{2} y = { \sec }^{2} y - 1$

Also , ${ \tan}^{2} y = \frac{ { \sin }^{2} y}{ { \cos }^{2}y }$

So ,

$\frac{ { \sin }^{2}y }{ { \sec }^{2}y - 1 } = \frac{ { \sin}^{2} y}{ { \tan }^{2} y} = \frac{ { \sin }^{2}y }{ \frac{ { \sin}^{2} y}{ { \cos}^{2}y } } = { \cos }^{2} y$

6 0

2 years ago

Que costaría más comprar una vaca o comprar hamburguesas de 1€ hasta igualar a una vaca.

butalik [34]

Answer:

haha pues cuesta mas las hamburgesas porque toca ir al doctor despues

Step-by-step explanation:

8 0

2 years ago

Can someone pls help me with this.

Elodia [21]

Answer:

[A] It will take 24 minutes for Joe and Charmaine to meet again at the starting line.

[B] Joe will complete 2 laps

[C] Charmaine will complete 3 laps.

Step-by-step explanation:

Factor two numbers 12 and 8:

12 = 2×2×3

8 = 2×2×2

Find LCM of 12 and 8:

Lcm of 12 and 8 - 2×2×3×2 = 24

Therefore,

[A] How much time does it take for them to meet again at the starting line?

It will take 24 minutes for Joe and Charmaine to meet again at the starting line.

[B] How many laps does Joe complete

Joe will complete 2 laps

[C] How many laps does Charmaine complete?

Charmaine will complete 3 laps.

~lenvy~

6 0

2 years ago

What is the missing step in this proof?

Arada [10]

1. AD/DB=CE/EB

given

2. AD/DB+1=CE/EB+1

Addition Property of Equality

3. AD+DB/DB=CE+EB/EB

using common denominators

4. AB = AD + DB

CB = CE + EB

segment addition

5. AB/DB=CB/EB

Substitution Property of Equality

6.ABC DBE

Reflexive Property of Congruence

7. ABC ~ DBE

SAS similarity criterion

8. 

Corresponding angles of similar triangles are congruent.

9. DE|| AC

If the corresponding angles formed by

3 0

3 years ago

Read 2 more answers

The graph shows the altitude of a helicopter over time. A graph measuring altitude and time. A line runs through coordinates (0,

TiliK225 [7]

We can calculate for the slope of the line using the formula:

m = (y2 – y1) / (x2 – x1)

From the given values:

m = (4,000 – 10,000) ft / (15 – 0) min

m = -400 ft/min

This means that the altitude is decreasing by 400 ft per minute.

> The slope is –400 . This means that the helicopter descends 400 ft each minute.

4 0

3 years ago