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Rainbow [258]
3 years ago
13

alt="0.7x^{2} - 4.3x + 3.9 " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Ostrovityanka [42]3 years ago
4 0
Use the quadratic formula to get 
x= -11.24188336 or -15.17240236

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Anna buys 6 bottles of pineapple juice at the corner store for a total cost of $4.50.
makkiz [27]

Answer:

c = 0.75j

Step-by-step explanation:

divide $4.50 by 6 to find the price of one bottle of pineapple juice

4.50/6 = 0.75

each bottle of pineapple juice is 75 cents each

c = 0.75j

4 0
3 years ago
A new television set was recently purchased for the common room in a Residence Hall for $408.00 including tax. If the tax rate i
Mumz [18]

Answer:

399.84

Step-by-step explanation:

408.00 x .98 (2% reduction from 100) = 399.84

6 0
3 years ago
AB is tangent to the circle at B. M∠A=40 and mBC=130. <br> a. Find x <br> b. Find y
soldi70 [24.7K]

The values for x and y are respectively given as

  • x = 50
  • y= 90

This is further explained below.

<h3>What is the values for x and y ?</h3>

Generally, the equation for secent  is  mathematically given as

secent = \frac{big arc - small arc}{2}

Therefore

40 = \frac{130-x}{2}

80 = 130-x

x = 50

b) To Solve for y Now we find a measure of arc CD

ArcCD = 360-130-50

ArcCD = 180

In conclusion,(1/2) of the arc measure is equal to the angle that is on and inside a circle.

y = 180/2

y= 90

Read more about circle

brainly.com/question/11833983

#SPJ1

3 0
2 years ago
In Ms Barclay's classroom 2/5 students play chess. 5/6 of the students play Sudoku. If there are 30 students, in her class how m
Nonamiya [84]

Answer:

12 students play chess

and 25 students play Sudoku

Step-by-step explanation:

There are 30 students in Ms Barclay's classroom.

2/5 students play chess.

i.e. \dfrac{2}{5}\times 30  play chess

i.e. 12 students play chess

5/6 of the students play Sudoku.

i.e. \dfrac{5}{6}\times 30  play Sudoku

i.e. 25 students play Sudoku

Hence, 12 students play chess

and 25 students play Sudoku

6 0
3 years ago
Convert 7 to rational number
Anna [14]
A rational number is one that u can turn into a fraction.

Anytime u have a whole number and u want to turn it into a rational number, put it over 1.

7 to a rational number would be 7/1
7 0
3 years ago
Read 2 more answers
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