Ask question

Ask question

All categories

3 years ago

5

The expression 7 + 2(x – 3) + 5x is simplified correctly in the correct order. Which of the steps has an incorrect justification

?
step a
step c
step d
step b

2 answers:

galben [10]3 years ago

6 0

step c should be the right answer i think

larisa86 [58]3 years ago

4 0

Answer:

it is step c

Step-by-step explanation:

7 + 2(x - 3) + 5x

= 7 + 2x - 6 + 5x

= 7 - 6 + 2x + 5x

= 1 + 7x

You might be interested in

A jewelry shop is offering a percent discount on the original price of a jade pendant. The original price of the pendant was $20

AleksAgata [21]

Answer:

u dont explane the question

Step-by-step explanation:

5 0

3 years ago

Simplify the expression. 64 7/12<br> 16<br> 8 √2<br> 4√2<br> 32

mezya [45]

Answer:

$8\sqrt2$

Second option is correct.

Step-by-step explanation:

We have been given the expression $(64)^{\frac{7}{12}}$

We can write the term 64 as $64=2^6$

Thus, we have

$(2^6)^{\frac{7}{12}}$

Now, use the exponent law $(x^m)^n=x^{mn}$

$(2)^{6\cdot\frac{7}{12}}$

On simplifying, we get

$(2)^{\frac{7}{2}}$

This expression can be further simplified as

$\sqrt{2^7}\\\\=\sqrt{2^6\cdot2}\\\\=2^3\sqrt{2}\\\\=8\sqrt2$

Second option is correct.

8 0

3 years ago

In a 45-45 right triangle, the two legs have the same length. in the figure(figure 4) both are given lengths of 1 . what is the

motikmotik

The hypotenuse formula is a^2+b^2=c^2
so each side a=1
b=1
1^2 +1^2=c^2
1+1= c^2 so the hypotenuse equals 2

7 0

3 years ago

The diameter of the base of a cone measures 8 units. The height of the cone is 6 units. What is the volume of the cone in terms

Mekhanik [1.2K]

Answer:

V = 32 pi

Step-by-step explanation:

The volume of a cone is

V = 1/3 pi r^2 h

The radius is d/2 = 8/2 = 4

V = 1/3 pi (4)^2 * 6

V = 32 pi

5 0

3 years ago

A)distributive property of multiplication over subtraction

alina1380 [7]

Answer: sup brendalys it’s me Timotheus

Step-by-step explanation:

The answer is c I think

5 0

3 years ago