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lord [1]
4 years ago
9

Pre-cal I don’t understand much

Mathematics
2 answers:
antoniya [11.8K]4 years ago
5 0

Answer:

\Huge \boxed{{x=3}}

\rule[225]{225}{2}

Step-by-step explanation:

f(x) = 4x - 3

f(x) = 9

Substituting.

9 = 4x - 3

Adding 3 to both sides.

12 = 4x

Dividing both sides by 4.

3 = x

\rule[225]{225}{2}

SpyIntel [72]4 years ago
3 0

Answer:

33

Step-by-step explanation:

f(x) = 4x-3

Let x= 9

f(9) = 4*9 -3

     36-3

     33

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ILLL MARK YOU BRAINLIEST
notka56 [123]
Answer is the 3rd one
5 0
4 years ago
1000:300:750 simplified
atroni [7]

Answer: 40:12:30

Step-by-step explanation:

To simplify this, look for a common divisible number, which is 25

Then divide all through by 25

1000/25:300/25:750/25

=40:12:30

I hope this helps

8 0
4 years ago
The $299.99 of a cell phone Brittany purchesd was on sail for 10% off. What amount did Brittany save?
Oksi-84 [34.3K]

Answer:

10* 299.99=2999.9

2999.9/100=29.999

this would round up to 30, so Brittany saved $30. : )

6 0
3 years ago
An animal shelter spends $2.35 per day to care for each cat and $5.50 per day to care for each
lora16 [44]
Equation:
89.50=2.35c+5.50d

If theres 22 dogs and cats in total you can plug in number less than 22 for c(# of cats) and d(# of dogs).

So we try pats numbers 8 cats and 14 dogs so

89.50=2.35(8)+5.50(14)

89.50=18.8+77

89.50=95.8

So pats numbers were wrong so we try different numbers

So i started pluging in numbers from under 22 so i got c is 10 and d is 12 lets try it with the equation

89.50=2.35(10)+5.50(12)

89.50=23.5+66

89.50=89.50 so it works the answer to how many number of dogs and cats is 12 dogs and 10 cats




6 0
3 years ago
Instructions: Find the missing side lengths. Leave your answers as radicals in simplest form.
KengaRu [80]

Answer:

X=6 and Y=3

Step-by-step explanation:

Use SOHCAHTOA, SOH, Sin=Opposite/Hypotenuse, Therefore Sin60°=(3√3)/x ; Xsin60°=3√3 and Sin60° without using 4figuretable or calculator is √3/2, Now x=3√3 ÷√3/2 ;. therefore X=3√3×2/√3= 6. X=6 . Using Pythagoras theorem, 6²={(3√3)² +y²}. Y²= 36-27=9. Y=√9, Y=3. Therefore X=6 and Y=3.

7 0
3 years ago
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