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SpyIntel [72]
3 years ago
13

Somebody please help me!!!again

Mathematics
2 answers:
RUDIKE [14]3 years ago
5 0
X + 7 + 4x + 3 = 180
5x + 10 = 180
5x = 170
x = 34
zhenek [66]3 years ago
3 0

Answer: x = 34

4x + 3 + x + 7 = 180

5x + 10 = 180

5x = 170

x = 34

4x + 3 = ?

4 (34) + 3 = ?

136 + 3 = 139

x + 7 = ?

(34) + 7 = 41

139 + 41 = 180

It gives you the sum of 180 degrees if they are both combined

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Which pair of slopes show that line AD is perpendicular to line BC?
grigory [225]

Answer:

7,1/7

Step-by-step explanation:

6 0
3 years ago
How many square meters is the area of ​​a square field with a side of 400 cm?​
mr_godi [17]

Answer:

Easy think, a square has 4 equal sides and if each side is 400 just multiply 400 x 4 = 1600

Step-by-step explanation:

hope this helps

8 0
3 years ago
You're uncle is having a new roof installed in his house. The roof is a square pyramid. The side length of the base of the roof
Kaylis [27]

Answer:

The height of the roof in his house is 72.43 ft.

Step-by-step explanation:

The volume of square pyramid is :

V=\frac13 Bh

B= area of the base.

h= the height.

Given that,

The roof is a square pyramid in shape. The volume of the roof is 18929.333 cubic feet.

The side length of the base of the roof is 28 feet.

Since the base of the roof is square in shape.

The area of the square is = side²

The area of the base is =(28×28) square feet

                                       =784  square feet

Assume the height of the roof be h ft.

Then, the volume of the roof is = \frac13 Bh

                                                   =\frac13 \times 784 \times h square feet.

According to the problem,

\frac13 \times 784 \times h= 18929.3333

\Rightarrow h=\frac{18929.3333\times 3}{28}

\Rightarrow h\approx 72.43 ft.

The height of the roof in his roof is 72.43 ft.

8 0
3 years ago
Explain how the Quotient of Powers property was used to simplify this expression.
pav-90 [236]

We have been given the expression 2^5/8=2^2

8 can be rewritten as 2^3

Hence, the given expression becomes

2^5/2^3=2^2

After subtracting the exponents on left hand side of the equation we get:

2^2=2^2

we can do it by simplifying 8 to 2^3 to make both powers base two, and subtracting the exponents.

6 0
3 years ago
I need the real answer for this one plz?!!
Usimov [2.4K]

The answer is in the picture

5 0
3 years ago
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