3 years ago

Площа паралелограма дорівнює 98 см“, а одна з його ви-

Mathematics

1 answer:

netineya [11]3 years ago

5 0

Sorry I don’t know the answer and the question to

You might be interested in

Solve the quadratic equation by completing the square. 3x2 - 6x - 4 = 0

lakkis [162]

Answer:

The solutions are

$x=1+\sqrt{\frac{7}{3}}$

$x=1-\sqrt{\frac{7}{3}}$

Step-by-step explanation:

we have

$3x^{2}-6x-4=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$3x^{2}-6x=4$

Factor the leading coefficient

$3(x^{2}-2x)=4$

Complete the square. Remember to balance the equation by adding the same constants to each side

$3(x^{2}-2x+1)=4+3$

$3(x^{2}-2x+1)=7$

Rewrite as perfect squares

$3(x-1)^{2}=7$

$(x-1)^{2}=\frac{7}{3}$

square root both sides

$x-1=(+/-)\sqrt{\frac{7}{3}}$

$x=1(+/-)\sqrt{\frac{7}{3}}$

$x=1+\sqrt{\frac{7}{3}}$

$x=1-\sqrt{\frac{7}{3}}$

4 0

3 years ago

What is the value of x in the figure? Enter your answer in the box.<br> HELP IMMEDIATELY!

Anit [1.1K]

Answer:

Step-by-step explanation:

145 = 2x + 15

2x = 130

x = 65 (ANS)

7 0

3 years ago

Read 2 more answers

Find the value of x in the triangle shown below.<br> X°<br> 27°<br> 45°

drek231 [11]

Answer:

So the sum of a triangle is 180° so 45°+27°= 72°

180° - 72°= 108°

X = 108°

4 0

3 years ago

Graph the following systems of equations and determine the solution of the system .

Zanzabum

Answer:

We can find the solution to a system of equations by graphing the equations. Let's do this with the following systems of equations:

8 0

3 years ago

a class has a ratio of boys to girls of 3/4 each for each statement below decide whether it is the fraction of boys in the class

Yanka [14]

Answer:

Step-by-step explanation:

Ratio of boys to girls = 3:4

Total ratio = 7

Fraction for boys = 3/7

5 0

3 years ago