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2 years ago

2x-9 x=3 ..............................

Mathematics

2 answers:

AlexFokin [52]2 years ago

5 0

Answer:

Step-by-step explanation:

2x - 9

If x = 3

Then,

2·(3) - 9 = 6 - 9 = <u>(-3)</u>

WINSTONCH [101]2 years ago

4 0

Answer:

Step-by-step explanation:

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Find the third side in simplest radical form:<br> 25

Gre4nikov [31]

Answer:

<h3> $\boxed{ \bold{24}}$ </h3>

Step-by-step explanation:

$\mathsf{given}$

$\mathsf{hypotenuse(h) = 25}$

$\sf{perpendicular (p) = 7}$

$\sf{base(b) = }$ ?

Now, Using Pythagoras theorem

$\sf{{h}^{2} = {p}^{2} + {b}^{2} }$

plug the values

⇒ $\sf{ {25}^{2} = {7}^{2} + {b}^{2} }$

Evaluate the power

⇒ $\sf{625 = 49 + {b}^{2} }$

Swap the sides of the equation

⇒ $\sf{49 + {b}^{2} = 625}$

Move constant to right hand side and change it's sign

⇒ $\sf{ {b}^{2} = 625 - 49}$

Calculate the difference

⇒ $\sf{ {b}^{2} = 576}$

Squaring on both sides

⇒ $\sf{b = 24}$

Hope I helped!

Best regards!

8 0

3 years ago

I need to know all the angles that are congruent

Alinara [238K]

Congruent to angle 1: 3, 5, 10, 8, and 6
congruent to angle 2: 4, 9, and 7

6 0

3 years ago

Read 2 more answers

Find the value of each expression. Show your work.

Verdich [7]

Answer:

$A) (1.2)^{2} = 1.44$

$B)2^ 3+17-(3\times 4) = 13$

$C)\frac{(9)^2}{(3)^3} = 3$

Step-by-step explanation:

Here, the given expressions are:

A) $(1.2)^{2}$

Solving this, we get

$(1.2)^{2} = 1.2 \times 1.2 = 1.44$

⇒ $(1.2)^{2} = 1.44$

B) $2^ 3+17-(3\times 4)$

Now, solving this, we get

$2^ 3+17-(3\times 4) = (2 \times 2 \times2) + (17 -12)\\=8 + 5 = 13$

⇒ $2^ 3+17-(3\times 4) = 13$

C) $\frac{(9)^2}{(3)^3}$

Simplifying this, we get

$\frac{(9)^2}{(3)^3} = \frac{(9\times9)}{(3 \times 3\times3)} = 3$

⇒ $\frac{(9)^2}{(3)^3} = 3$

4 0

3 years ago

Write the equation of the line that passes through the points (0,2) and (-1,-1):

slava [35]

Answer:

m = (2 - (-1)) / (0 - (-1)) = 3/1 = 3

y = 3 * (x - 0) + 2

y = 3 * x + 2

6 0

3 years ago

A. 3 <br>B. 10<br>C. 20<br>D. 30

Dahasolnce [82]

<u>Answer:</u>

<u>Explanation:</u>

292/100×9.9 = 2.92×9.9 = <u>28.908</u>

30 is closest to 28.908

3 0

2 years ago