1 year ago

Does this graph represent a function? Why

Mathematics

1 answer:

Sladkaya [172]1 year ago

3 0

C. Yes because it passes the vertical line test

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I have some questions that need to be answered fast. 1. 42/j = 35/55

Novay_Z [31]

$\frac{42}{j} = \frac{35}{55}$

to solve for j first you need to cross multiply;

j × 35 = 42 × 55

35j = 2,310

j = 2,310 ÷ 35 (did the inverse operation)

j = 66

Hope that helps :D

6 0

2 years ago

A grocer wants to mix a type of spice which costs £22 per kilogram with another type

AfilCa [17]

Answer:

Step-by-step explanation:

let a = 22 / kg, and b = 12 / kg

a + b = 20 kg

22a + 12b = 15 * 20

12a + 12b = 240

10a = 60

8 0

2 years ago

A building's construction cost was $625,000. the building is 80 feet long, 45 feet wide and 12 feet high. what was the cost of t

Alborosie

Volume = Length x Width x Height
Volume = 80 x 45 x 12
Volume = 43200 ft³

Cost per cubic foot = $625 000 ÷ 43200
Cost per cubic foot = $14.47

----------------------------------------------
Answer: $14.47 per cubic foot.
----------------------------------------------

8 0

3 years ago

While testing a new vaccine, a lab technician noticed that the number of bacteria reduced by half every minute. How long does it

ANTONII [103]

As we know that
x=x0*[1/2]n
putting the values
375=3000*[1/2]n
375/3000=[1/2]n
1/8=[1/2]n
simplify
[1/2]3=[1/2]n
by cancelling them
so n=3
so it will take 3 minutes
hope it helps

7 0

2 years ago

1. Multiply 5x by (3x+2) *

Umnica [9.8K]

Answer:

5x (3x +2)

15x² + 10X

7 0

2 years ago