All categories

3 years ago

Solve the equation. 2(3z-2)+8=34 A. z=3 B. z=-3 C. z=-4 D. z=5

Mathematics

2 answers:

levacccp [35]3 years ago

6 0

2(3z-2)+8=34
6z - 4 + 8 = 34
6z + 4 = 34
6z = 34 -4
6z = 30
z =30/6
z = 5

answer D. z=5

mario62 [17]3 years ago

4 0

Step 1: 2(3z-2)+8=34
Step 2: 6z - 4 + 8 = 34
Step 3: 6z + 4 = 34
Step 4: 6z = 34 -4
Step 5: 6z = 30
Step 6: z =30/6
Step 7: z = 5

D is your answer : )

You might be interested in

if an exterior angle of a regular polygon measures 15 degrees how many sides does it have ?a.23. b.24. c.25

dimaraw [331]

Answer:

B.24

Step-by-step explanation:

we know,

exterior angle = 360°/n(where 'n' is number of sides)

then,

15° = 360°/n

n = 360°/15°

n = 24

3 0

2 years ago

Why do you think you need to add zero pairs to get the -1- tiles to fit in the rectangle?

Olin [163]

You will need. 1- to fit the rectangle tile in

7 0

2 years ago

Hey! Can someone check my answers?

Andrew [12]

The greatest common factor is the biggest number taken from the values.

Q1. The answer is A. 5y^6

$20 y^{9} +5 y^{6}= 4*5 y^{9}+5 y^{6}$
Since $x^{a}* x^{b} =x^{a+b}$ , then $x^{9}= x^{3}* x^{6}$

Back to our expression:
$4*5 y^{9}+5 y^{6}=4*5 y^{3}*y^{6}+5 y^{6}=4 y^{3}*5y ^{6}+ 5y ^{6}*1=5 y^{6} (4y ^{3} +1)$
The greatest common factor is thus $5 y^{6}$

Q2. The answer is D. 12xy^2

$12x y^{5}+60 x^{4} y^{2} -24 x^{3} y^{3}=12x y^{5}+5*12 x^{4} y^{2} -2*12 x^{3} y^{3}$
We will use the rule $x^{a}* x^{b} =x^{a+b}$ to factorise the exponents:
$12x y^{5}+5*12 x^{4} y^{2} -2*12 x^{3} y^{3}= \\ =12x*y^{2}*y^{3}+5*12*x* x^{3} *y^{2}-2*12x* x^{2} *y*y^{2}= \\ =12xy^{2}*y^{3}+12xy^{2}*5 x^{3} -12xy^{2}*2 x^{2} y= \\ =12xy^{2}(y^{3}+5 x^{3}-2 x^{2} y)$
The greatest common factor is thus $12xy^{2}$

3 0

3 years ago

Is this true or false 276 times 13 = 276 times 7 + 276 times 6 = 1,932 + 1,656 and why?

DIA [1.3K]

Answer:

Step-by-step explanation:

13 = 6+7

276*13 = 276*(7+6)

= 276*7 + 276 *6 {distributive property upod addition}

= 1932 + 1656

= 3588

7 0

3 years ago

Read 2 more answers

You are adding air to a tire the air pressure in the tire should be 32 27/200 pounds per square inch. What decimal should you wa

Ilya [14]

Answer:

Step-by-step explanation:

5 0

3 years ago