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notka56 [123]
3 years ago
14

Ms. Chin asked her students to use the properties of multiplication to rewrite the expression (negative 5) (Negative StartFracti

on 2 over 7 EndFraction) Left-bracket (StartFraction 4 over 11 EndFraction) (negative 9) Right-bracket. The table below shows the properties that each of four students used to rewrite the expression.
Expressions Generated by Students
Student
Properties used to rewrite the expression
Mitul
Commutative property
Stacy
Associative property
Tom
Associative property and then the commutative property
Walt
Commutative property and then the associative property

How many of the students created an expression that was equivalent to the original?
one
two
three
four
Mathematics
2 answers:
12345 [234]3 years ago
4 0

Answer:

Three

Step-by-step explanation: :)

natali 33 [55]3 years ago
3 0

Answer:

three

Step-by-step explanation:

hope it hlps

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A force of 56N is required to keep a spring stretched 4m from the equilibrium position. How much work in Joules is done to stret
Mariana [72]

Please check the attached images for the answer. Answer with full explanation is screenshoted. Plz refer.

Thanks ☺️

Hope it helps you.

8 0
3 years ago
A pile of coins, consisting of nickels, dimes, and quarters, is worth $4.55. There are 4 more dimes than nickels and 3 quarters
frozen [14]
Fun

n=number of nickles
q=number of quarters
d=number of dimes


4 more dmes than nickles, 3 more quarters than dimes
d+4=n
q=3+d

total value is 455 cents
10d+5n+25q=455
divide both sides by 5 to simplify
2d+n+5q=91

now we convert all to one coin
q=3+d and n+4=d
subsitute 3+d for q and n+4 for d

2(n+4)+n+5(3+d)=91
2(n+4)+n+5(3+n+4)=91
2(n+4)+n+5(n+7)=91
2n+8+n+5n+35=91
8n+43=91
minus 43 both sides
8n=48
divide both sides by 8
n=6

sub back
n+4=d
6+4=d
10=d

q=3+d
q=3+10
q=13


6 nickles
10 dimes
13 quarters
5 0
3 years ago
Laya has 8(3/4) packing peanuts. Each whole bag of packing peanuts weights 7(4/5) pounds. What Is the total weight of the paking
Korolek [52]

8  ( \frac{3}{4} ) \times 7( \frac{4}{5} ) = 33.6
5 0
3 years ago
Read 2 more answers
Pls help if you actually can
Setler79 [48]

The triangles that are similar would be ΔGCB and ΔPEB  due to Angle, Angle, Angle similarity theorem.

<h3>How to identify similar triangles?</h3>

From the image attached, we see that we are given the Parallelogram GRPC. Thus;

A.  The triangles that are similar would be ΔGCB and ΔPEB  due to Angle, Angle, Angle similarity theorem.

B. The proof of the fact that ΔGCB and ΔPEB are similar pairs of triangles is as follow;

∠CGB ≅ ∠PEB  (Alternate Interior Angles)

∠BPE ≅ ∠BCG  (Alternate Interior Angles)

∠GBC ≅ ∠EBP  (Vertical Angles)

C.  To find the distance from B to E and from P to E, we will first find PE and then BE by proportion;

225/325 = PE/375  

PE = 260 ft

BE/425 = 225/325  

BE = 294 ft

Read more about Similar Triangles at; brainly.com/question/14285697

#SPJ1

5 0
2 years ago
Pls can someone help me with math pls I’m this is my last points..
LiRa [457]

Answer:

Please read all of this! Underlined things are the answers. The area of the entire circle is 19.625

Step-by-step explanation:

(This is a circle so the middle line is the diameter. According to the attachment, the diameter is 5 cm. To find the area, we have to multiply π and the radius squared. The radius is half of the diameter.

5 ÷ 2 = 2.5

2.5² = 6.25

π = 3.14

3.14 x 6.25 = 19.625)

Ignore the top I just realized what I'm supposed to do but I left it there just in case you need help!

<u>The right and left shaded regions areas are 6.28 each.</u>

4 ÷ 2 = 2

2² = 4

3.14 x 4 = 12.56

Since this is a semi circle, we cut it in half.

12.56 ÷ 2 = 6.28

To find the top and bottom shaded region's areas, repeat the same steps.

3 ÷ 2 = 1.5

1.5² = 2.25

3.14 x 2.25 = 7.065

7.065 ÷ 2 = 3.5325

<u>The areas of the the top and bottom shaded regions are 3.5325 each.</u>

3 0
3 years ago
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