All categories

2 years ago

X + y = 3 4x + 4y = -12

Mathematics

1 answer:

Stolb23 [73]2 years ago

6 0

Answer:

oop

Step-by-step explanation:

4x+4y-4=-12-4

then you get the answer for x

You might be interested in

Solve the equation (5p-8)/2=(7p+4)/6

ohaa [14]

Answer:

p=7/2=3.5

Step-by-step explanation:

(5p-8)/2=(7p+4)/6

cross product

2(7p+4)=6(5p-8)

14p+8=30p-48

8=30p-14p-48

8=16p-48

16p=8+48

16p=56

p=56/16

p=7/2=3.5

4 0

3 years ago

Find the length of the unknown side. 25 cm 15 cm

AleksandrR [38]

Answer:

b = 20 cm.

Step-by-step explanation:

Define and explain:

This is a right triangle, so the Pythagorean Theorem applies.

The Pythagorean Theorem states that the sum of the squared legs will equal the squared length of the hypotenuse.

The legs of a triangle are the sides that form the right angle.

The hypotenuse is the longest side; the hypotenuse is always diagonal from the small square indicating a right angle.

Solve:

$a^2+b^2=c^2$

$a,b-legs$

$c-hypotenuse$

$15^2+b^2=25^2$

$225+b^2=625$

$625-225=400$

$b^2=400$

$b=20$

Conclude:

Therefore, the length of the unknown side is 20 centimeters.

3 0

2 years ago

A radio station plays 3 commercials for every 8 songs it plays. If they played 72 songs during the morning segment, how many com

andriy [413]

Answer:

Step-by-step explanation:

7 0

3 years ago

Each side of a rectangular prism measures 2 inches, and the height is 10 inches. What is the volume?

Diano4ka-milaya [45]

V=lwh
evidently, l=w=2

so
h=10
l=2
w=2

v=2*2*10=40

answer is 40 in^3

6 0

3 years ago

Which of the following expressions is equal to 5^6/5^2

Natali5045456 [20]

Answer:

$\dfrac{5^6}{5^2}$ = $5{\cdot}5{\cdot}5{\cdot}5$

Step-by-step explanation:

The given expression is :

$\dfrac{5^6}{5^2}$

We need to find this expression is equal to what.

$\dfrac{5^6}{5^2}=\dfrac{5^4\times 5^2}{5^2}\\\\=5^4\\\\=5\times 5\times 5\times 5\\\\\text{or}\\\\=5{\cdot}5{\cdot}5{\cdot}5$

Hence, $\dfrac{5^6}{5^2}$ is equal to $5{\cdot}5{\cdot}5{\cdot}5$ . Hence, the correct option is (c).

5 0

2 years ago