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nadya68 [22]
3 years ago
10

Please help. don’t understand :((

Mathematics
2 answers:
Greeley [361]3 years ago
8 0

Answer:

Step-by-step explanation:

place x = 19

f(19) = 3 / 19 + 2 - Sqrt 21 - 3

= 3/21 - 4

= - 81/21

= - 27/7

nalin [4]3 years ago
8 0

Answer:

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

Step-by-step explanation:

Given

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

To evaluate f(19), substitute x = 19 into f(x) , that is

f(19) = \frac{3}{19+2} - \sqrt{19-3}

       = \frac{3}{21} - \sqrt{16}

       = \frac{1}{7} - 4

       = \frac{1}{7} - \frac{28}{7}

       = - \frac{27}{7}

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Mrs. Taylor bought 16⅓ yards of material. She used 5¾ yards. How much material does she have left? *
raketka [301]

Answer:

10\frac{7}{12}

Step-by-step explanation:

First thing you want to do is find the common denominator for \frac{1}{3} and \frac{3}{4}. You do this by multiplying to denominators together, so 3*4=12.

Next, multiple the numerators with the opposite denominator. 1*4=4 and 3*3=9.

Now you are left with \frac{4][12] and \frac{9}{12}.

Add those back to your numbers

16\frac{4}{12} - 5\frac{9}{12} = 10\frac{7}{12}

8 0
3 years ago
2/3y + v = s solve for y
DanielleElmas [232]

Answer:

y = \frac{3s-3v}{2}

Step-by-step explanation:

Given

\frac{2}{3} y + v = s ( subtract v from both sides )

\frac{2}{3} y = s - v

Multiply through by 3 to clear the fraction

2y = 3s - 3v ( divide both sides by 2 )

y = \frac{3s-3v}{2}

3 0
4 years ago
Someone please help I don’t understand sad face
Bess [88]
-1 cus its -1 becus u -1 so u get -1
6 0
3 years ago
Read 2 more answers
(X+5)/2 = (2x-1)/3 what’s x?
labwork [276]

Answer:

x=  3x=17/4

Step-by-step explanation:

6 0
3 years ago
How much would a computer system cost if you pay $200 down and made 12 monthly payments of only $98.95?
jonny [76]

Answer:

$1387.4

Step-by-step explanation:

Total cost for the computer will be sum of down payments and monthly installments.

____________________________________

Given

down payment = $200

monthly installment value = $98.85

no. of installments = 12

total value of monthly installments = 12*98.95 = $1187.4

Total cost of computer system = $200+  $1187.4 = $1387.4

8 0
4 years ago
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