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oee [108]
3 years ago
5

Helppppppppppplszzzz

Mathematics
2 answers:
pshichka [43]3 years ago
8 0

Answer:

3x=15

Step-by-step explanation:

3(5)=15 it's the only one where x can be 5

Slav-nsk [51]3 years ago
4 0
Plug x = 5 into all the equations
A: 2 + 5 = 3 (false)
B: 3(5) = 15 (true)
C: 5/2 = 10 (false)
D: 5 - 7 = 12 (false)

Solution: B
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(6e−3f−4)⋅2=<br> otay otay
Dmitry [639]

Answer:

Step-by-step explanation:

if you need to evaluate the expression:

multiply 2 with the parenthesis

12e-6f-8

8 0
3 years ago
Read 2 more answers
Can someone please help me find the area of this polygon, thank you!
Amanda [17]

Answer:

<h2>270 ft²</h2>

Step-by-step explanation:

<h3>METHOD 1:</h3>

<em>Look at the picture</em>

We can divide a given polygon into three rectangles:

21ft\ \times\ 10ft,\ 4ft\ \times\ 6ft,\ 6ft\ \times\ 6ft

The formula of an area of a rectangle <em>l × w </em>:

A=l\cdot w

Calculate the area of ​​each of the rectangles:

A_1=(21)(10)=210\ ft^2\\\\A_2=(4)(6)=24\ ft^2\\\\A_3=(6)(6)=36\ ft^2

The area of the given polygon:

A=A_1+A_2+A_3\\\\A=210+24+36=270\ ft^2

<h3 /><h3>METHOD 2:</h3>

<em>Look at the second picture</em>.

We subtract the field of the smaller rectangle (<em>11ft × 6ft</em>) from the field of the large rectangle (<em>21ft × 16ft</em>):

A_S=(11)(6)=66\ ft^2\\\\A_L=(21)(16)=336\ ft^2\\\\A=A_L-A_S\to A=336-66=270\ ft^2

7 0
3 years ago
What is 3 3/5 + 4 11/15=?
Vitek1552 [10]
Equal to 4.73 repeating, rounded is 4.7
3 0
3 years ago
Read 2 more answers
3W - 8 + 3W = -4 + 5W - 5<br> can someone do it and show the work / how you did it
andrew11 [14]

Answer:

W = -1

Step-by-step explanation:

3W - 8 + 3W = -4 + 5W - 5

combine like terms

6W - 8 = -9 + 5W

subtract 5w on both sides

W - 8 = -9

add 8 on both sides

W = -1

7 0
3 years ago
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What is 15/16 simplafyed?
borishaifa [10]
It can not be simplified because the numerator and denominator can not be divided between the same number, so that each results an integer number.
5 0
3 years ago
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