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goblinko [34]
3 years ago
10

Math Question - Will mark Brainiest!

Mathematics
1 answer:
Reika [66]3 years ago
5 0
A)  area is l x w
6 x 5 = 30.....30 x 2 = 60 for the two end sides
4 x 5 = 20......20 x 2 = 40 for the front and back sides
6 x 4 = 24 for the bottom

B)  Surface area is the same....
Front:  20
Back:  20
Bottom:  24
Left:  30
Right:  30
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9 (x-y)^2-9 (x+y)(x-y)
bazaltina [42]
<h2>Answer</h2>

This answer is 18y • (y - 1)

<h2>Explanation</h2>

Step by step solution:

Equation at the end of step 1:

9 (x - y) ^2 - 9 (x^{2} - y^{2})

Equation at the end of step 2:

9 (x^2 + y^2 - 2xy) - 9 (x^2 - y^2)

Equation at the end of step 3:

9x^2 + 9y^2 - 18xy - 9x^2 + 9y^2

Equation at the end of step 4:

After performing basic +, - operation we get:

18y^2 - 18xy

Answer is: 18y. (y – x)


3 0
3 years ago
Seven hundred new chairs were delivered to a school. If each class
Natalija [7]

Answer:

24 chairs in each class needed

25 classrooms

700 chairs total

how many extra chairs

chairs will be c

t is total

t= 25×c

opposite of multiplication is division( 25 is multiplying by c) c needs to be alone

25 classrooms times chairs equal total chairs

t is 700

700=25×c

700/25=25/25c

700/25=C

c is 28

so 28 chairs for 25 classrooms

they need 24 chairs per class

so there are 4 extra chairs per class

4×25 is 100

**or just multiply 25 classes and 24 chairs

25 times 24 is 600

there are 700 chairs

100 left over

so 100 extra chairs

4 0
3 years ago
Read 2 more answers
Simplify 8 over 56 fraction
Tom [10]

Answer:

Therefore, 8/56 simplified to lowest terms is 1/7.

Step-by-step explanation:

brainliest plzzzzzz

5 0
3 years ago
Which best describes the shape of the distribution
Nataliya [291]

Answer:

D

Step-by-step explanation:

because in the graph you can see that it is not tilting to one specific direction

5 0
3 years ago
Can someone help me thank you
mrs_skeptik [129]

Answer: y=20x +0

Step-by-step explanation: y=mx (slope) + b (y-intercept). You can search more about how to find the slope of a equation and y-intercept

6 0
3 years ago
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