3 years ago

What is the awnser to this question (w2x−3)÷10·z when w=−4, x = 0.8, and z=−45 k12

Mathematics

1 answer:

inn [45]3 years ago

6 0

42.3
(-4x2x0.8-3)=-9.4
-9.4/10=-0.94
-0.94x-45=42.3

You might be interested in

According to the values in the table, do x and y have a proportional relationship?

Masteriza [31]

Answer:

Yes.

Step-by-step explanation:

0.4 x 100 = 40

0.5 x 100 = 50

0.6 x 100 = 60

1 x 100 = 100

Hope this helped!

6 0

3 years ago

Which shows the correct substitution of the values a, b, and c from the equation 1 = –2x + 3x2 + 1 into the quadratic formula? Q

Tanzania [10]

First of all, you have to manipulate the equation into the standard

$ax^2+bx+c=0$

form. You can simplify the 1's on both sides and you have

$3x^2-2x=0$

This means that your coefficients are

$a=3,\quad b=-2,\quad c=0$

And since the solving formula is

$x_{1,2}=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

Plugging your values yields

$x_{1,2}=\dfrac{-(-2)\pm\sqrt{(-2)^2-4\cdot 3\cdot 0}}{2\cdot 3}$

5 0

3 years ago

Read 2 more answers

Hi! does anyone know how to solve this problem?

masha68 [24]

Answer:-5

Step-by-step explanation:

3 0

2 years ago

A system of equations is shown.

siniylev [52]

4x+20=5y
Divide 5 on both sides
so your answer would be
4/5x+4=y

x+15=3y
Divide 3 on both sides
so your answer would be
3x+5=y

6 0

3 years ago

More help, im still confused

nevsk [136]

Answer:

a) $\frac{1}{3}$

b) $\frac{4}{5}$

Step-by-step explanation:

a) the exponent is 2, therefore the value of $\sqrt[2]{9}$ would go in the place of the base.

b) the exponent is 2, therefore the value of $\sqrt[2]{\frac{16}{25} }$ would go in the place of the base => $\frac{\sqrt{16}}{\sqrt{25}}$ = $\frac{4}{5}$

3 0

3 years ago

Read 2 more answers