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
Anastaziya [24]
3 years ago
15

Pls help brainiest to the correct answer!

Mathematics
2 answers:
Nataly_w [17]3 years ago
8 0

Answer:

  • a) 9, b) 87, c) - 2, d) - 9

Step-by-step explanation:

  • a) - 2 * (- 4.5) = 9
  • b) (- 8.7) * (- 10) = 87
  • c) (- 7) * (-2) = 14
  • d) (- 9) * (- 10) = 90
nataly862011 [7]3 years ago
4 0

#a

\\ \sf{:}\dashrightarrow -2(-4.5)=9.0

#b

\\ \sf{:}\dashrightarrow (-8.7)(-10)=8.7

#c

\\ \sf{:}\dashrightarrow (-7)(-2)=14

#d

\\ \sf{:}\dashrightarrow (-9)(-10)=90

You might be interested in
I need helping with dis
avanturin [10]

10.


0.3 r = 2.1


r = 2.1/0.3 = 21/3 = 7


Answer: 7


11.


8 \textrm{ hours} \times \dfrac{ 5 \textrm{ dollars}}{\textrm{car}} \times \dfrac{ 12 \textrm{ cars}}{3 \textrm{ hours}} = 160 \textrm{ dollars}


Answer: $160


12.


\dfrac{5 \textrm{ dollars}}{\textrm{week}} \times w \textrm{ weeks} = 5w


Answer: 5w





7 0
4 years ago
(5x - 2y)^3<br> Expand using Bionomial Theorum. Show steps, please.
tatyana61 [14]

Answer:

125x³ − 150x²y + 60xy² − 8y³

Step-by-step explanation:

(5x − 2y)³

₃C₀ (5x)³ (-2y)⁰ + ₃C₁ (5x)² (-2y)¹ + ₃C₂ (5x)¹ (-2y)² + ₃C₃ (5x)⁰ (-2y)³

(1) (125x³) (1) + (3) (25x²) (-2y) + (3) (5x) (4y²) + (1) (1) (-8y³)

125x³ − 150x²y + 60xy² − 8y³

7 0
4 years ago
Please help what is this help
Arte-miy333 [17]
24,5:10,5=2,33
I think this
3 0
3 years ago
Read 2 more answers
7. If P = [5,6,7,8). Q = (2,4,6,8) and<br>R=2, 3, 7, 9), then P nQnR=​
Setler [38]

Answer:

pnQnR= {}

Step-by-step explanation:

there is no number common in set P, set Q and set R.

So the answer is null

{}

7 0
3 years ago
Read 2 more answers
PLEASE HELP, WILL GIVE BRAINLIST TO BEST ASNWER GOOD EASY POINTS!<br><br> right answers only please
worty [1.4K]

The line of the best fit is y = 2100x -4166040 and the number of bottles is, 86460 which expect to sell in 2025

<h3>What is the line of best fit?</h3>

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

We have data shown in the table:

To find the line of best fit, we will calculate its slope and y-intercept.

We know the slope is given by:

\rm m = \dfrac{n\sum xy-\sum x \sum y}{n \sum x^2 - (\sum x)^2}   where n = 5

After calculating, we get,

\rm n\sum xy-\sum x \sum y = 105000  and

\rm n \sum x^2 - (\sum x)^2 = 50

m = 105000/50 = 2100

For y-intercept b:

\rm b = \dfrac{\sum y -m \sum x}{n}

After calculating:

b = -4166040

The line becomes:

y = 2100x -4166040

If x = 2025 put this value in the line, we get:

y = 86460

Thus, the line of the best fit is y = 2100x -4166040 and the number of bottles is, 86460 which expect to sell in 2025

Learn more about the line of best fit here:

brainly.com/question/14279419

#SPJ1

4 0
2 years ago
Other questions:
  • What is the definition of point of tangency? in Geometry
    15·2 answers
  • ASAP.right now will be nice
    13·1 answer
  • 2+3x7-32x64-8+764x33398x986+12
    13·1 answer
  • Which inequality is true when x = 4?
    10·1 answer
  • What is the slope of the line through the points (-4, 2) and (-16, -6)?
    10·2 answers
  • Simplify the expression. -5/8(-3/8-1/4) ​
    11·1 answer
  • Find the radius of the circle which has the same area
    13·1 answer
  • What is the value for y
    10·2 answers
  • Supose that the half-life of a cesium is 30 years. If there were initially 1000g of the substance,
    11·1 answer
  • GEOMETRY HELP ASAP PLEASE
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!