2 years ago

Geometry!!!!!!!!!!!!!!!

Mathematics

1 answer:

Nimfa-mama [501]2 years ago

6 0

Answer:

x=4

Step-by-step explanation:

1. 7x+56=14x+28 using distributive property (with the number of stes you need to have, this may count as 2)

2. 56=7x+28 by subtracting 7x from each side

3. 28=7x by subtracting 28 from both sides

4. x=4 by dividng by 7

5. plug back into equation

7(4)+56=14(4+2)

28+56=14(6)

84=84

You might be interested in

Find the product. enter your answer in simplest form. 6x2/3 = _=_

Ivenika [448]

Answer: 4

Step-by-step explanation:

6 • 2/3 =
12/3 =
4

6 0

2 years ago

Each leg of 45 degree -45 degree -90 degree triangle measure 12 cm what is the length of the hypotenuse

Yuri [45]

A = b = 12 cm

Pythagorean theorem

$a^2+b^2=c^2\\\\ c^2=a^2+a^2\\\\ c^2=2a^2\\\\ c=\sqrt{2a^2}$

$c=a\sqrt2$ formula

$c=12\sqrt{2} \ (cm)$ <-- Answer

3 0

3 years ago

Is y=x^3 a solution of the differential equation yy'=x^5+y

shepuryov [24]

No; we have $y=x^3\implies y'=3x^2$ . Substituting these into the DE gives

$3x^5=x^5+x^3$

which reduces to $x^3=0$ , true only for $x=0$ .

3 0

2 years ago

When can u add and subtract fractions

adelina 88 [10]

Before you can add or subtract fractions with different denominators, you must first find equivalent fractions with the same denominator, like this: Find the smallest multiple (LCM) of both numbers. Rewrite the fractions as equivalent fractions with the LCM as the denominator.

8 0

2 years ago

A total of 133 million square miles of the Earth's surface are covered in water. The ratio of the area covered in water to the a

Anni [7]

Answer:

57 million square miles

Step-by-step explanation:

Let the area of water is w and area of land is l.

Their ratio is:

w/l = 7/3

133 / l = 7/3

Find the value of l

l = 133*3/7
l = 57 million square miles

6 0

1 year ago