1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lesechka [4]
2 years ago
13

Raul simplified the expression, as shown below.

Mathematics
2 answers:
Yuliya22 [10]2 years ago
7 0

Answer:

he should have  worked out 7h(2 - h) first before adding the 3h. (first step)

2nd step he multiplied the 2 by -10h  but he also should have multiplied the -h by the -10h ( Distributive law)

Step-by-step explanation:

Got it right on edge

Softa [21]2 years ago
4 0

Answer:

Raul's errors are in the application of the distributive property(he applied it wrongly), in not respecting the precedence of operations, and in the multiplication of two terms with the same base(we add the exponent).

Step-by-step explanation:

Distributive property:

The distributive property of multiplication is:

a*(b + c) = a*b + a*c

Precedence of operations:

First multiplication, then addition.

Multiplication of terms with the same base:

The multiplication of h*h = h², which Raul missed.

The correct simplification is given by:

-[3h + 7h(2-h)] = -[3h + 14h - 7h^2] = -[17h - 7h^2]=7h^2 - 17h

You might be interested in
Christine, Kareem, and Trey have a total of $133 in their wallets. Kareem has $5 more than Christine. Trey has 4 times
Nadusha1986 [10]

Answer:

Christine has $18, Kareem has $23, and Trey has $92.

Step-by-step explanation:

This can be solved by using variables to represent the unkown values.

x = Christine's money

x + 5 = Kareem's money.

4(x + 5) = Trey's money.

x + (x + 5) + 4(x + 5) = 133

2x + 5 + 4x + 20 = 133

6x = 108

x = $18

This means that Christine has $18, Kareem has $23, and Trey has $92.

Hope this helps

5 0
2 years ago
A rectangular piece of gift wrap is 5.5 inches by 2.1 inches. What is the area of the gift wrap? ( hint: use A = lw
mart [117]
You're given that the formula for area is lw, and you're given the l and w values. So just plug them in. They have the same unit of measurement (inches) so you can just multiply. 

A = lw
A = (5.5)(2.1)
A = 11.55 in²
5 0
3 years ago
Use change-of-base formula to find three significant digits log^6 120
Paladinen [302]
I suppose that  when you write "log^6" , you want to say log₆

Change of base formula:
loga b=logc b / logc a

log₆ 120=ln 120 / ln 6=2.67

Answer: log₆ 120=2.67
7 0
3 years ago
The measure of one angle is 130 which statement is true regarding the 130 angle and angle 3
Dafna11 [192]
According to Figure that is shown below, the correct answer for this problem is:

<span>B. They are alternate interior angles, so angle 3 also measures 130°. 

</span>The same happens with 7 and 11. This is an obtuse angle, that is, this kind of angles measures more than 90° but less than 180°. 

7 0
3 years ago
Read 2 more answers
COULD SOMONE PLZ PLZ HELP ME WITH THIS PROBLEM!!!
Jlenok [28]
1.b 2.a lines are parallel hope this helps =3

6 0
3 years ago
Other questions:
  • Madelyn hopped 12 times in 15 seconds. What's her speed hops per minute
    6·1 answer
  • A line contains the points (−26, −37) and (−32, −61) .
    9·2 answers
  • sam has five favorite football teams, and every week, he puts their flags on his flagpole in random order a. in a given week, ho
    14·1 answer
  • Solving Inequalities<br><br>Algebra 1​
    13·1 answer
  • Carlos swam to the bottom of a pool that is 12 feet deep. What is the opposite of Carlos elevation relative to the surface.
    13·2 answers
  • Need help finding the answer
    7·2 answers
  • Help!
    13·1 answer
  • Convert Decimal 98 to Binary<br> Pls help
    5·1 answer
  • What is 36 divided by 1/4 <br> PLS AWNSER ASAP
    9·2 answers
  • Coach Yamada is organizing community volleyball teams. He wants each team to have 8
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!