1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Katarina [22]
3 years ago
8

Evaluate Y=3x-5 when x=6

Mathematics
1 answer:
Harman [31]3 years ago
6 0
7 + (-3x^2) for x = 0 7 + [-3(0)^2]; = 7 + -3(0); = 7 - 0; = 7
You might be interested in
at a local fitness center, members pay a $12 membership fee and $5 for each aerobic class. Nonmembers pay $6 for each aerobic cl
Len [333]

Make an equation:

5x+12=6x

Use the subtraction property:

x=12

The final answer is that the cost for members and nonmembers will be the same when there have been 12 classes.

8 0
3 years ago
Read 2 more answers
HELP Use either law of sines or law of cosine. Need help on this problem! show work please!​
Marina86 [1]

Answer: x = 15.035677095729 approximately

Round this however you need to.

=================================================

Explanation:

I'm assuming you want to find the value of x, which your diagram is showing to be the length of segment QR.

If so, then we'll need to find the measure of angle Q first. Using the law of sines, we get the following:

sin(Q)/q = sin(R)/r

sin(Q)/PR = sin(R)/PQ

sin(Q)/13 = sin(85)/19

sin(Q) = 13*sin(85)/19

sin(Q) = 0.6816068987

Q = arcsin(0.6816068987) ... or ... Q = 180-arcsin(0.6816068987)

Q = 42.9693397461 ... or ... Q = 137.0306602539

These values are approximate.

----------------

Now if Q = 42.9693397461 approximately, then angle P is

P = 180-Q-R

P = 180-42.9693397461-85

P = 52.0306602539

Similarly, if Q = 137.0306602539 approximately, then,

P = 180-Q-R

P = 180-137.0306602539-85

P = -42.0306602539

A negative angle is not possible, so we'll ignore Q = 137.0306602539

----------------

The only possible value of angle P is approximately P = 52.0306602539

Let's apply the law of sines again to find side p, aka segment QR

sin(P)/p = sin(R)/r

sin(P)/QR = sin(R)/PQ

sin(52.0306602539)/x = sin(85)/19

19*sin(52.0306602539) = x*sin(85)

19*sin(52.0306602539)/sin(85) = x

x = 15.035677095729

This value is approximate.

Round this value however you need to.

4 0
2 years ago
Read 2 more answers
Mary went to the local market to purchase some fruit. Each box of
musickatia [10]

Answer:

11

Step-by-step explanation:

11 BOXES OF ORANGES IS $33

7 BOXES OF PEARS IS $35

WHICH EQUALS $68

MEANING THERE IS 11 BOXES OF ORANGES

5 0
3 years ago
Someone please help me with this question
Vladimir79 [104]
A will be the right answer
3 0
3 years ago
Read 2 more answers
What is the answer i cant solve it 6.4u-5.1u=-3.25?
Marta_Voda [28]
I hope this helps you




1,3 u = -3,25



1,3u ÷1,3 = -3,25 ÷ 1,3


u = -2,5
7 0
3 years ago
Other questions:
  • Pam likes to practice dancing while preparing for a math tournament. She spends 80 minutes every day practicing dance and math.
    10·1 answer
  • It takes 36 nails to weigh a pound. How many would it take to weigh 7 2/3 pounds
    12·2 answers
  • The graph of the function f (x) = StartFraction 10 Over x + 2 EndFraction is shown below. On a coordinate plane, a hyperbola is
    11·1 answer
  • You start driving north for 35 miles, turn right, and drive east for another 12 miles. At the end of driving, what is your strai
    6·1 answer
  • Your cell phone plan costs ​$ 34.99 per month plus ​$ 0.17 for each text message you send or receive. You have at most ​$ 42 to
    11·1 answer
  • Chris brought one gallon of punch to school. How many cups of punch could he serve?
    14·2 answers
  • PLEASE HELP ASAP!!!!!
    13·1 answer
  • HELPPP PLEASEEEEEEEEEEEEE
    13·2 answers
  • Help me with this question please!!ASAP
    12·1 answer
  • M is directly proportional to r³ when r=4, m=160.work out the value of r when m=20
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!