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muminat
3 years ago
10

Simplify 4a – 7b + 2ab – a + b. -ab 15ab 4a – 7b + 2ab 3a – 6b + 2ab

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
5 0

The answer is 3a-6b+2ab

Romashka-Z-Leto [24]3 years ago
3 0

Answer:

Option D.

Step-by-step explanation:

The given expression is

4a-7b+2ab-a+b

We need to find the simplified form of the given expression.

In this expression 4a and -a are like terms, and -7b and b are like terms.

Combined like terms in the given expression to find the simplified form of the given expression.

(4a-a)+(-7b+b)+2ab

(3a)+(-6b)+2ab

3a-6b+2ab

Therefore, the correct option is D.

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If a:b=5:6and b:c=3:8 find a:b:c?
mr_godi [17]

Answer:

(a x b ) : (b x b ) : (b x c)

5x3 : 6x3 : 6 x 8

Step-by-step explanation:

15:18:48

5 0
2 years ago
How many yards has a mile
stiv31 [10]
He's correct 
there is exactly 1760 yards in a mile

3 0
3 years ago
- Olivia skates twice as far as Stephanie. This sum of their distances is 96 miles per month. How many
kotegsom [21]

Answer:

B.64 miles

Step-by-step explanation:

Let Oliver's be x

Let Stephanie's be y

x = 2y -  -  - (a) \\ x + y = 96 -  -  - (b)

substitute for x in (b):

2y + y = 96 \\ 3y = 96 \\ y = 32

find x in (a):

x = (2 \times 32) \\ x = 64

5 0
3 years ago
Read 2 more answers
Isaiah decides to launch a model rocket to demonstrate parabolic motion. Given x stands for time and y stands for height in feet
mina [271]

The parabolic motion is an illustration of a quadratic function

The equation that models that path of the rocket is y = -16/31x^2 + 256/31x - 880/31

<h3>How to model the function?</h3>

Given that:

x stands for time and y stands for height in feet

So, we have the following coordinate points

(x,y) = (5,0), (11,0) and (10,80)

A parabolic motion is represented as:

y =ax^2 + bx + c

At (5,0), we have:

25a + 5b + c = 0

c= -25a - 5b

At (11,0), we have:

121a + 11b + c = 0

Substitute c= -25a - 5b

121a + 11b -25a - 5b = 0

Simpify

96a + 6b = 0

At (10,80), we have:

100a + 10b + c = 80

Substitute c= -25a - 5b

100a + 10b - 25a -5b = 80

75a -5b = 80

Divide through by 5

15a -b = 16

Make b the subject

b = 15a + 16

Substitute b = 15a + 16 in 96a + 6b = 0

96a + 6(15a + 16) = 0

Expand

96a + 90a + 96 = 0

This gives

186a = -96

Solve for a

a = -16/31

Recall that:

b = 15a + 16

So, we have:

b = -15 * 16/31 + 16

b =-240/31 + 16

Take LCM

b =(-240 + 31 * 16)/31

[tex]b =256/31

Also, we have:

c= -25a - 5b

This gives

c= 25*16/31 - 5 * 256/31

Take LCM

c= -880/31

Recall that:

y =ax^2 + bx + c

This gives

y = -16/31x^2 + 256/31x - 880/31

Hence, the equation that models that path of the rocket is y = -16/31x^2 + 256/31x - 880/31

Read more about parabolic motion at:

brainly.com/question/1130127

7 0
2 years ago
5 equally sized boxes of cake mix fell off the back of jake's truck. Together they wight 925.97 pounds. How much does each box w
Nikitich [7]
925.97/5= 185.194
A: 185.194 pounds
4 0
3 years ago
Read 2 more answers
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