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3 years ago

When you divide a whole number by a fraction with a numerator of one explain how you can find the cuotient?

Mathematics

1 answer:

zmey [24]3 years ago

4 0

Hint : turn the whole number into a fraction too.

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Solve the equation for solutions over the interval [0°, 360°).

olchik [2.2K]

Answer:

$x=98.13^\circ,135^\circ,278.13^\circ,315^\circ$

Step-by-step explanation:

$tan^2x+7tanx+8=0,[0^{\circ},360^\circ)$

$tan^2x+7tanx+8=0$

$u=tanx$ <-- U-substitution

$u^2+7u+8=0$

$(u+7)(u+1)=0$

$(tanx+7)(tanx+1)=0$ <-- Replace u with tanx

$tanx+7=0$

$tanx=-7$

$x=98.13^\circ,278.13^\circ$

$tanx+1=0$

$tanx=-1$

$x=135^\circ,315^\circ$

Therefore, $x=98.13^\circ,135^\circ,278.13^\circ,315^\circ$

6 0

3 years ago

A serviceman charges ₱450 per hour for doing mechanical jobs. How much does he get for 6.75 hours of doing the job?

vredina [299]

Answer:

450×6.75 = 2 956.5

So the serviceman will get 2 956.5 after 6.75 hours of doing the job

7 0

2 years ago

Which of the following is the definition for permutation?

Kamila [148]

Answer:

The answer is D. Selections of objects in which the order of the objects matters.

Step-by-step explanation:

Permutation is an arrangement of all or part of a set of objects, with regard to the order of the arrangement.

The formula for permutation: A permutation is the choice of (r) things from a set of (n) things without replacement and where the order matters. Formula-

$nPr= \frac{n!}{(n-r)!}$

Permutation can be classified in three different categories:

Permutation of (n) different objects (when repetition is not allowed)

Repetition, where repetition is allowed

Permutation when the objects are not distinct (Permutation of multi sets)

8 0

3 years ago

Explain the difference between a vertical angle, the vertical angle theorem and the proof for vertical angle theorem

Pepsi [2]

Vertical angles are angles that are across each other

Vertical angle theorem is that all vertical angles are congruent.

You can do basic angle chasing, naming the angles x and the others y. 180-x=y and 360=2x+2y. Then x=x, proving they are vertical angles.

3 0

3 years ago

The label on the car's antifreeze container claims to protect the car between −40°C and 140°C. To covert Celsius temperature to

sattari [20]

Answer:

THE ANSWER IS D

-40<5/9(F-32)<140

SEMOGA MEMBANTU

3 0

3 years ago

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