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
dimaraw [331]
3 years ago
11

Andrew is showing his work in simplifying (−5.7 + 2.2) − 1.1.

Mathematics
2 answers:
Leviafan [203]3 years ago
6 0
Answer: In step 1, Andrew used the commutative property

Explanation:
In step 1 he used commutative, which is a + b = b + a
(- 5.7 + 2.2) = 2.2 + (- 5.7)

Step 2, he used associative property, not the distributive.

Step 3, he just added5.7 + 1.1 = 6.8

Step 4, he distributed the negative sign:
- (6.8) = - 6.8
valkas [14]3 years ago
4 0

In step 2, Andrew used the distributive property

Thus is because a -1 was taken out of both -5.7 and -1.1

You might be interested in
5. 2x + 5 - 7x = 15<br> 6.<br> X=<br><br> Help me
Andreyy89

Answer:

-2

Step-by-step explanation:

2x+5-7x=15

Combine like terms

-5x+5=15

Subtract 5 from both sides

-5x=10

Divide -5 from both sides

x=-2

4 0
4 years ago
Read 2 more answers
Work out the height of the triangle with base, b = 2.4mm and area, A = 34.68mm squared​
nikdorinn [45]
2.4*x/2=34.68
2.4*x=69.36
x=28.9
(x is the height)
7 0
3 years ago
Geometry Special Quadrilaterals show work please
Charra [1.4K]

Answer:

a = 16

w = 125

x = 120

y = 55

Step-by-step explanation:

<u>FINDING 'a'</u>

31 = a + 46 / 2

62 = a + 46

16 = a

<u>FINDING 'w'</u>

* This section looks Non-Isosceles trapezoid so I will be following the rule according it

w + 55 = 180

w = 125

<u>FINDING 'y'</u>

y = 55

- Because of corresponding angles

<u>FINDING 'x'</u>

* In this case it looks like we are still dealing w/ an non-isosceles trapezoid.

x + 60 = 180

x = 120

Hope this helped ^^

(Please inform me of any mistakes or misunderstandings!)

6 0
3 years ago
Two trains travel at right angles to each other after leaving the same train station at the same time. Two hours later they are
hjlf

Answer:1547.9 miles per hour

Step-by-step explanation:

Let the two trains leave in x direction and y direction

Velocity of train in x direction be v

therefore velocity of train in Y direction is v+29

because one train is 29 miles per hour slower than other.

Distance travel by train in x direction is(x) v(2)

Distance travel by train in y direction is(y) 2(v+29)

distance between them after 2 hours is 4420 miles

Now using pythagoras theorem

x^2+y^2=\left ( 4420\right )^2

\left ( 2v\right )^2+\left ( 2\left ( v+29\right )\right )^2=\left ( 4420\right )

on solving

2v^2+58v-4881699=0

v=\frac{-58\pm \sqrt{\left ( 58 \right )^2+4\cdot 2\cdot4881699}}{2\cdot 2}

v=1547.889 miles per hour

7 0
3 years ago
In 300 people 60% liked to visit Pokhara, 35% liked chitwan and 20%
ryzh [129]
<h2><em>Answer:</em></h2><h2><em>4</em><em>5</em></h2>

<em>Please </em><em>see</em><em> the</em><em> attached</em><em> picture</em><em> for</em><em> full</em><em> solution</em>

<em>hope </em><em>it</em><em> helps</em><em>.</em><em>.</em><em>.</em><em>.</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

3 0
3 years ago
Other questions:
  • The diameter of a certain bacterium is about 0.0000004 meters. How would I rewrite this using scientific notation?
    9·2 answers
  • A cashier always starts the day with $60 in pennies, nickels, dimes, and quarters. She begins with five times as many pennies as
    8·2 answers
  • The area of a triangle is 16 square units. The base of the triangle is four more than the height of the triangle. What is the ba
    12·1 answer
  • Biologists studying the healing of skin wounds measured the rate at which new cells closed a cut made in the skin of an anesthet
    10·1 answer
  • What is the value of b? I'll mark the first correct answer brainliest.
    15·2 answers
  • HELPPPPPP<br> I need to know if those questions are true or false! Please helpppp
    7·1 answer
  • What is the length of AC?
    6·1 answer
  • If the temperature at 7am was (-4) degrees celcius and the temperature rose 17 degrees celcius during the morning, what was the
    7·2 answers
  • PLS HELP MEEEEEEE IM CRYING RN IM GONNA FAIL
    12·1 answer
  • Pls help!! given: angles 1 and 2 are a linear pair prove that x=11
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!