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AlladinOne [14]
3 years ago
13

Solve for me pls :)

Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0

Answer:

<h2>f(19) =  -  \frac{27}{7}  \\</h2>

Step-by-step explanation:

f(x) =  \frac{3}{x + 2}  -  \sqrt{x - 3}  \\

To find f(19) , substitute the value of x that's 19 into f(x). That is for every x in f (x) replace it with 19

We have

f(19) =  \frac{3}{19 + 2}  -  \sqrt{19  - 3}  \\  =  \frac{3}{21}  -  \sqrt{16}  \\  =   \frac{1}{7}  - 4 =  \frac{1 - 28}{7}

We have the final answer as

f(19) =  -  \frac{27}{7}  \\

Hope this helps you

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A
Serjik [45]

Answer

925 students brought their lunch.

Explanation

First let's rewrite the equation.

You know that "of" means multiply and "is" means equal.

Okay, so let's break it down.

The question says, "At your school, 74% of students brought their lunch at the cafeteria. There are 1250 students in the school."

This means that 74% of 1250 students brought their lunch at the cafeteria.

You are trying to find how many students brought their lunch. This will be x.

So the equation would be this.

74% × 1250 = x

74% is 0.74.

0.74 × 1250 = x

0.74 × 1250 = 925

So 925 students brought their lunch.

6 0
3 years ago
Michael is making a card for his dad's birthday. He's shaded a triangular section on the card where he wants to write his dad a
artcher [175]

Answer:

Option C (72)

Step-by-step explanation:

In the figure attached we can see a rectangle ABCD with length 12 cm and width 9 cm.

A  triangle PEF with height BE and base EF.

Since side AE = 3 cm, so side EB = EC = 9 - 3 = 6cm

and EF = AD = 12 cm

Now we will find the area of of the parts of the card that are not shaded.

Area of parts that are not shaded = Area of rectangle - area of shaded triangle

= (12×9) -

= 108 -

Option c) 72 cm² is the area of non shaded part.

Hope this helps!! -Mina

7 0
2 years ago
Read 2 more answers
Pleaseeeee please help me out.......
SIZIF [17.4K]
The answer is C hope this helps
4 0
3 years ago
Read 2 more answers
Anybody yooo plzzzzzz
Elena-2011 [213]

Answer:

what do you have to do this?

Step-by-step explanation:

what grade and type of math is this?

6 0
3 years ago
In circle O, what is mAE?<br> 84°<br> 96°<br> 120°<br> 168°
shutvik [7]
The answer is 120 degrees on edgenutiy<span />
7 0
3 years ago
Read 2 more answers
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