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3 years ago

3+ 5x = 3 Slove for x

Mathematics

1 answer:

Flura [38]3 years ago

6 0

Answer:

x=0

Step-by-step explanation:

3+ 5x = 3

Subtract 3 from each side

3-3+ 5x = 3-3

5x = 0

divide each side by 5

5x/5 = 0/5

x = 0

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Can someone pleaseeee help if you’re correct I’ll give u brainlist

zhenek [66]

Answer:

y = 43, z = 16

Step-by-step explanation:

congruent essentially means they're the same. If you mentally map one triangle onto the other, you'll see that 43, the hypotenuse, lines up with y, and 16 lines up with z.

3 0

3 years ago

48 divided by four fifths

Fed [463]

Answer:

The answer is 60.

Step-by-step explanation:

$\frac{48}{1}$ ÷ $\frac{4}{5}$

Now, apply the fraction rule(\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}):

$\frac{48}{1}$ × $\frac{5}{4}$

Cross-cancel(common factor of 4):

$\frac{12}{1}$ × $\frac{5}{1}$

Multiply:

$\frac{12 x 5}{1 x 1}$

Simplify:

12 x 5=60

The answer is 60

hope this helps :)

4 0

3 years ago

State the value of the discriminant for the equation,<br> 3x^2 + 7x + 3 = 0

Irina-Kira [14]

Answer: 13

Step-by-step explanation:

If you remember the quadratic equation formula;

$x=\frac{-b\frac{+}{}\sqrt{b^2-4ac} }{2a}$

You can easily extract what is under the root to find the discriminant.

$b^2-4ac=?\\$

a = 3

b = 7

c = 3

$(7)^2-4(3)(3)\\49-36=13$

7 0

3 years ago

X^2+y^2-4y-15=6

myrzilka [38]

Answer:

x^2 + y^2 - 4y - 15 = 6

x^2 + y^2 - 4y = 21

x^2 + y^2 - 4y + 4 = 25

x^2 + (y - 2)^2 = 5^2

r = 5

8 0

3 years ago

Which expressions simplify to a rational answer? Select each correct answer. 29√⋅4√ 3√⋅16−−√ 73⋅−√3√ 5√⋅5√

PolarNik [594]

Answer:

The correct options are 1, 3 and 4.

Step-by-step explanation:

We need to find the expressions whose simplified form is a rational number.

Rational number: If a number is defined in the form of p/q where p and q are integers and q≠0, then it is called a rational number.

For example: 0,2, 4.3 etc.

Irrational number: If a number can not defined in the form of p/q, where p and q are integers and q≠0, then it is called an irrational number.

First expression is

$2\sqrt{9}\cdot \sqrt{4}=2(3)\cdot (2)\Rightarrow 6\cdot 2=12$

12 is a rational number.

Second expression is

$\sqrt{3}\cdot \sqrt{16}=\sqrt{3}\cdot 4\Rightarrow 4\sqrt{3}$

$4\sqrt{3}$ is an irrational number.

Third expression is

$7\sqrt{3}\cdot \sqrt{3}\Rightarrow 7\cdot 3=21$

21 is a rational number.

Fourth expression is

$\sqrt{5}\cdot \sqrt{5}=5$

5 is a rational number.

Therefore, the correct options are 1, 3 and 4.

4 0

3 years ago