All categories

2 years ago

2m·4b−3a·2n−0.2b·5m+n·5a−5bm+8an

Mathematics

1 answer:

cupoosta [38]2 years ago

8 0

Answer:

2bm + 7an

Step-by-step explanation:

Multiply.

8bm - 6an - bm + 5an - 5bm + 8an

Combined like terms:

8bm - 6an - bm + 5an - 5bm + 8an

= 2bm + 7an

You might be interested in

Plssssss help me! What is the area of the shaded portion to the nearest hundredth?

Katarina [22]

Step-by-step explanation:

A1= area of the rectangle

A1= 4yd • 10yd

A1= 40 square yd

A2= area of the part of the circular section

A2= 180°• pi • 4 square yd/360°

A2= 180° • 16yd • pi/ 360°

A2= 16yd•pi/2

A2= 8yd•pi

A2= 25,12yd

A= areo of rhe shaded portion

A= A1-A2

A= 40yd-25,12yd

A= 14,88yd

7 0

3 years ago

HELP PLEASE!!!!!!!!!!!!!!!

sukhopar [10]

Answer:

Step-by-step explanation:

6 0

2 years ago

First year of high school heh need a little help

Luba_88 [7]

Answer:

(12 + 3x)x

Step-by-step explanation:

(12 + 3)x = 12x + 3x = 15x

(12 + 3x)x = 12x + 3x²

15x

12x + 3x = 15x

They all equal 15x except for (12 + 3x)x

7 0

2 years ago

Find the magnitude of the vector with (-7, -5) and write the vector as the sum of unit vectors.

Lesechka [4]

The magnitude of vector (-7,-5) =
= $\sqrt{ (-7)^{2} + (-5)^{2} } = \sqrt{74} = 8.6$

vector as the sum of unit vectors = -7 i - 5 j

4 0

2 years ago

Read 2 more answers

ASAP HELP!!! use the quadratic regression feature of a graphing calculator to find a quadratic model. round to the nearest thous

seropon [69]

Answer:

y = 0.008x^2 + 0.518x + 131.886

Step-by-step explanation:

Make sure your Plot 1 is ON. Select the Scatter Plots and the appropriate lists.
Clear all functions in [Y=]
Input data in L1 and L2. Go to [Stat] [Enter] to input data.
Graph data points. ...
Choose a regression from the list in [Stat] "CALC". ...
Go to [ZOOM] "9: ZoomSTat" to view the data with the regression curve.

(credit: CPM Educational Program)

3 0

2 years ago