3 years ago

Describe fully the graph which has equation x2 + y2 = 9

Mathematics

1 answer:

zmey [24]3 years ago

3 0

Answer:

The graph is a circle with a radius of 3 and a center of (0,0).

Step-by-step explanation:

Graph

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Evaluate the expression when x=2, y=5, and z=3 (y+z2 ) •x

Kitty [74]

(y + z2) * x
(5 + 3(2)) * 2
(5 + 6) * 2
11 * 2
Your answer is 22

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3 years ago

Find each function value 1. f(7) if (x)=5x 2. f(4) if f(x)=3x-1

Inessa [10]

ANSWER

$1. \: \: f(7) = 35$

$2. \: f(4) = 11$

EXPLANATION

To find the value of a function, f(x) at a given value x=a, we plug in x=a into f(x) to obtain f(a) in simplified form.

The first function is

$f(x) = 5x$

To find f(7), we substitute x=7, into the function.

$\implies f(7) =5(7) = 5 \times 7 = 35$

The second function is

$f(x) = 3x - 1$

To find f(4), we replace x with 4 to obtain,

$f(4) = 3(4) - 1$

$f(4) = 12 - 1 = 11$

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3 years ago

Myra takes 2hours to plant 50 flower bulbs. Francis takes 3 hours to plant 45 flower bulbs. Working together, how long should it

crimeas [40]

Answer:37 and half hrs

Step-by-step explanation:

This is what I get

Myra: 50/2= 25 bulbs/hr.

Francis: 45/3= 15 bulbs/ hr

25+15= 40/hr. Together per hr

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40/1=150/t

40t=150

T= 150/4

T= 37.5

37hrs and 1/2

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3 years ago

Find the value of 26/45 times 5/53 times 28/13 please show fingures and work

hjlf

$\bf \cfrac{\stackrel{2}{~~\begin{matrix} 26 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{\underset{9}{~~\begin{matrix} 45 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\cdot \cfrac{~~\begin{matrix} 5 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{53}\cdot \cfrac{28}{~~\begin{matrix} 13 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies \cfrac{2\cdot 28}{9\cdot 53}\implies \cfrac{56}{477}$

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3 years ago

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klemol [59]

Answer:

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