3 years ago

(8,9); x+3y=2 in y=mx+b form

Mathematics

1 answer:

n200080 [17]3 years ago

7 0

Answer:

use photo math. it will help

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1. Determine the value of y, if x is 5 for the function y = x2 -9.

user100 [1]

Sub in 5 for x
y=(5)2 -9
y= 10-9
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A spinner has 10 10 equal-sized sections. Six Six of the sections are purple purple. a. What is the probability that the spinne

borishaifa [10]

Answer:

P(Spinner lands on purple section) = 0.6 = 60%

Step-by-step explanation:

We are given the following in the question:

Number of sections = 10

Number of purple sections = 6

$\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}$

a) probability that the spinner will land on purple purple

P(purple) =

$=\dfrac{6}{10} = 0.6$

0.6 is the probability that the spinner will land on purple purple.

b) Interpretation of probability

$0.6\times 100\% = 60\%$

There is a 60% chance that the spinner will land on purple color.

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3 years ago

What is the sum of the first 7 terms of the series −4+8−16+32−... ?

pochemuha

we have that

−4+8−16+32−.....

a1=-2*(-2)-----> -4

a2=-4*(-2)-----> +8

a3=+8*(-2)-----> -16

a4=-16*(-2)----> +32

a5=+32*(-2)----> -64

a6=-64*(-2)-----> +128

a7=+128*(-2)-----> -256

The sum of the first 7 terms of the series is

<span>
the answer is -172</span>

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