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3 years ago

Precalculus class questions

Mathematics

1 answer:

Delicious77 [7]3 years ago

7 0

This is an exponential function that moved 4 units down.

$y= 3^{x} - 4$

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Please help, Easy maths.

svetoff [14.1K]

Answer:

$x-5y$

Step-by-step explanation:

$6x-8y-5x+3y$

Add or subtract like terms.

$1x-5y$

8 0

2 years ago

Read 2 more answers

Can someone help me with this

SashulF [63]

Answer:

$\angle NRQ =85 \degree$

Given:

$\angle RPQ = 45 \degree \\ \angle PQR = (6x + 4)\degree \\ \angle NRQ = (15x - 5)\degree$

Step-by-step explanation:

Property used: An exterior angle of a triangle is equal to the sum of the opposite interior angles.

$= > \angle RPQ + \angle PQR = \angle NRQ \\ \\ = > 45 \degree + (6x + 4)\degree = (15x - 5)\degree \\ \\ = > 45\degree + 6x\degree + 4\degree = 15x\degree - 5\degree \\ \\ = > 49\degree + 5 \degree= 15x\degree - 6x\degree \\ \\ = > 54\degree = 9x\degree \\ \\ = > 9x\degree = 54\degree \\ \\ = > x\degree = (\frac{54}{9} )\degree \\ \\ = > x\degree = 6\degree \\ \\ Putting \: value \: of \: x \: in \: \angle NRQ \\ \\ = > \angle NRQ = (15x - 5)\degree \\ \\ = > \angle NRQ = (15 \times 6 - 5) \degree \\ \\ = > \angle NRQ =85 \degree$

4 0

2 years ago

Factorize <img src="https://tex.z-dn.net/?f=a%20%7B%7D%5E%7B2%7D%20%20-%209b%20%7B%7D%5E%7B2%7D%20" id="TexFormula1" title="

lakkis [162]

Answer:

(a - 3b)(a + 3b)

Step-by-step explanation:

a² - 9b²

(a)² - (3b)²

(a - 3b)(a + 3b)

3 0

3 years ago

Read 2 more answers

What is the y-intercept ?

joja [24]

The y-intercept is 2. The y-intercept occurs when x is 0. In the graph, y is 2 when x is 0.

6 0

2 years ago

Patty has 8 flowerpots, and she wants to plant a different type of flower in each pot. There are 11 types of flower available at

Dominik [7]

The combination formula is given by

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

C(11, 8) = $\frac{11!}{(11-8)!8!}$

C(11, 8) = 165

So, there are 165 ways of choosing 8 flowers out of 11 flowers

7 0

3 years ago