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andrew11 [14]
3 years ago
13

Simplify (7x)- (-2x). A 5x B-5x C9x D-9x

Mathematics
2 answers:
Scrat [10]3 years ago
7 0

Answer:  The correct option is

(C) 9x.

Step-by-step explanation:  We are given to simplify the following expression :

E=(7x)-(-2x)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We will be using the following rule in simplifying the given expression :

a-(-b)=a+b.

From expression (i), we get

E\\\\=(7x)-(-2x)\\\\=7x+2x\\\\=(7+2)x\\\\=9x.

Thus, the required simplified form is 9x.

Option (C) is CORRECT.

WITCHER [35]3 years ago
6 0
You answer is C because 7-(-2) is 9 and then u just had an X at the end .

Hope this helps:)
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Find the 17th term in the sequence for which a1 = 10 and d = -3.
yKpoI14uk [10]

Answer:

d. -38

Step-by-step explanation:

Arithmetic sequence concepts:

The general rule of an arithmetic sequence is as follows:

a_{n+1} = a_{n} + d

In which d is the common diference between each term.

We can expand the general equation to find the nth term from the first, by the following equation:

a_{n} = a_{1} + (n-1)*d

In this question:

a_{1} = 10, d = -3

17th term:

a_{17} = a_{1} + (17-1)*d = 10 + 16*(-3) = -38

So the correct answer is:

d. -38

6 0
3 years ago
LOTS OF POINTS + BRAINLIEST
Gekata [30.6K]

Answer:

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5 0
2 years ago
Which of the given shapes has a larger area?
Simora [160]

Answer:

Rectangle

Step-by-step explanation:

Count the units. For the triangle, A=0.5bh. 0.5(4)(6)=A. A=12

Now, for the rectangle, A=bh. A=(3)(5). A=15. The rectangle is larger

5 0
3 years ago
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denis-greek [22]
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5 0
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Consider Z1= 4-4 radical 3i and Z2= -16 i. What is Z1-Z2?
goldfiish [28.3K]

Answer:

Option (3)

Step-by-step explanation:

Z_1=4-4\sqrt{3}i

Z_2=-16i

Z_1-Z_2=(4-4\sqrt{3}i)-(-16i)

            =4-4\sqrt{3}i+16i

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Therefore, Option (3) will be the correct option.

8 0
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