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julia-pushkina [17]
3 years ago
11

9. Simplify the expression: 4a + 8 - 2a – 4 + 7b.

Mathematics
1 answer:
nikdorinn [45]3 years ago
8 0

Answer:

2a + 7b + 4

Step-by-step explanation:

4a + 8 - 2a - 4 + 7b

<u><em>Group like terms</em></u>

4a - 2a + 7b + 8 - 4

<u><em>Add similar elements (4a - 2a)</em></u>

2a + 7b + 8 - 4

<u><em>Add/Subtract (8 - 4)</em></u>

2a + 7b + 4

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Which statement is true about the expression 4ab+2a−1?
Valentin [98]

Answer:

<h2>Make the points more Appealing</h2>

Step-by-step explanation:

B. The expression has 4 factors and 0 constants.

The factors separately are:

4

a

b

(c+3)

Factors are numbers or expressions that produce a givens product.

Looking at the expression we can rewrite it as:

4 x a x b x (c+3)

The overall value with be the product of all the factors.

8 0
2 years ago
Read 2 more answers
A right triangle has a base of 11 yards and a height of 7 yards . If you were to construct a similar but not congruent right tri
Dimas [21]

Answer:

bae of 44 yds and a height of 28 yds

Step-by-step explanation:

11x7 = 88 yd^2 = area of small triangle

616/88 = 16 so the larger triangle area is 16 times larger than the smaller triangle.

The area of a triangle is not proportional to it's dimensions. An increase of 16 times the area only increases the dimensions by 4 times.

larger triangle dimensions are 11 x 4 = 44 and 7 x 4 = 28

5 0
3 years ago
What is the vertical asymptote of this function?
liraira [26]

Answer:

D

Step-by-step explanation:

If y = log x is the basic function, let's see the transformation rule(s):

Then,

1. y = log (x-a) is the original shifted a units to the right.

2. y = log x + b is the original shifted b units up

Hence, from the equation, we can say that this graph is:

** 2 units shifted right (with respect to original), and

** 10 units shifted up (with respect to original)

<u><em>only, left or right shift affects vertical asymptotes.</em></u>

Since, the graph of y = log x has x = 0 as the vertical asymptote and the transformed graph is shifted 2 units right (to x = 2), x = 2 is the new vertical asymptote.

Answer choice D is right.

7 0
3 years ago
If w= the weight of a trout, which algebraic expression represents the phrase
RoseWind [281]

Answer:

it would be w7

Step-by-step explanation:

because to get w you mulitply w with 7

so all that you need to do is put the 7 next to the w

because mathematicians are known to be lazzy so they do not put the multiplication sign, instead the put it next to each other meaning that it is mulitplied

simple awnser for the simple question

6 0
3 years ago
A biker travels the 120 mi from New York , NY to Wilmington, DE in 8 hours. A bus, a truck, and a rider on a horse take the same
pickupchik [31]

Answer:

First, remember the relation:

Distance = Speed*Time.

We know that the distance is 120mi.

A) For the biker we know that:

Time  = 8hours.

Speed = Distance/Time = 120mi/8h = 15 mi/h.

B) For the bus we know that:

Time = 2 hours.

Speed = Distance/Time = 120mi/2h = 60 mi/h.

C) For the truck we know that:

Time = 2.5 hours.

Speed = Distance/Time = 120mi/2.5h = 48 mi/h.

D) For the rider on a horse we know that:

Time = 18.75 hours.

Speed = Distance/Time = 120mi/18.75h = 6.4 mi/h.

E) The equation for the speed is:

Speed = Distance/Time.

You can see that time is in the denominator, this means that if for a fixed distance, the time increases, then the denominator increases, which would imply that the speed decreases.

Then the speed is inversely proportional to the time when the distance is fixed.

4 0
3 years ago
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