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2 years ago

Convert 3cis 180° to rectangular form.

Mathematics

1 answer:

Alexus [3.1K]2 years ago

8 0

$3\mathrm{cis}180^\circ=3(\cos180^\circ+i\sin180^\circ)=3(-1+i\times0)=-3$

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Problem 1

KonstantinChe [14]

Answer:

The hypotenuse measures 8.48 meters.

Step-by-step explanation:

Given that a right isosceles triangle has legs of 6 meters long each, to find the length of the hypotenuse to the nearest tenth of a meter the following calculation must be performed, through the application of the Pythagorean theorem:

6 ^ 2 + 6 ^ 2 = X ^ 2

36 + 36 = X ^ 2

√ 72 = X

8.48 = X

Therefore, the hypotenuse measures 8.48 meters.

7 0

2 years ago

If fix)=x2-2 and g(x) = x-3, what is(f•g)(x)?

borishaifa [10]

Answer:

The last option is correct. (f*g)(x) = x² - 5

Step-by-step explanation:

Since is f * g you have to multiply them together.

x² - 2 * x - 3 (x)

Next ust simplify.

x² -5x

6 0

2 years ago

What is the answer to 7^3 x 7^-5? I need it for an important test that I can’t fail. Please help.

Vilka [71]

The answer fir sure is 1/49

4 0

1 year ago

One day last week, 6 teachers joined 5/7 of the members of the running club in an after-school run. Priya counted a total of 31

Blababa [14]

Answer:

The running club has 35 members

Step-by-step explanation:

Let

x ----> the total members of the running club

we know that

The total members of the running club multiplied by 5/7 plus 6 must be equal to 31 people

$\frac{5}{7}x+6=31$

Solve for x

$\frac{5}{7}x=31-6$

$\frac{5}{7}x=25$

$x=25(7)/5$

$x=35\ members$

therefore

The running club has 35 members

5 0

2 years ago

Use a table to multiply (x – 1)(3x + 2)

Naily [24]

Hello,

The answer is 3x² - x - 2

<h3>Step-by-step explanation:-</h3>

Step 1 : Apply distributive property by multiplying each term of " x - 1 " by each term of 3x + 2 :-

→ 3x² + 2x - 3x - 2

Step 2 : Combine 2x and -3x to get -x :-

→ 3x² - x - 2

✍️ By Benjemin ☺️

7 0

1 year ago