The range of f(x) = 7 4x is all positive real numbers. true or false

1 answer:

6 0

Please explain what the gap between the 7 and the 4 is, because I'm sure it's not 74x?

Either way, it looks like a linear graph, in which case yes, the range is going to be y∈ℝ. Therefore, it's false, as it's for ALL real values of y, including negative values.

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Ria can paint a room in 4 hours. Destiny can paint the same room in 6 hours. How long would it take Ria and Destiny to paint the

Lerok [7]

Time taken by Ria to paint a room = 4 hours

Time taken by Destiny to paint a room = 6 hours

If they work together, they complete 1 job. So,

$\frac{1x}{4}+\frac{1x}{6}=1$

The LCD of 4 and 6 is 12

$\frac{3x+2x}{12}=1$

$\frac{5x}{12}=1$

$5x=12$

$x=\frac{12}{5}$

Hence, both of them can paint the room in $\frac{12}{5}$ hours or 2.4 hours.

4 0

3 years ago

Read 2 more answers

I really need help anybody

Brut [27]

- 4(8x-3)/4 =76/4

-8x+3=76/4

-8x+3=19

-8x=16

X=2

I hope this helps.

7 0

3 years ago

I need help on number 4. Please help me!

Andreas93 [3]

S= R- 1/3R

The first problem s=18 r-= 6
This is how it works

Use S-= R-1/3R
12= 18-1/3(18)
12= 18-6
12=12

8 0

2 years ago

What is 575% written as a mixed number?

pav-90 [236]

Answer:

575% as a mixed number is $5\frac{3}{4}$

Explanation:

575% is equivalent to $\frac{575}{100}$ which is equal to 5.75

5.75 = 5 + 0.75

0.75 can be written as $\frac{75}{100}$ . This value can be simplified by dividing both the numerator and the denominator by 25. This would give us $\frac{3}{4}$