2 years ago

I will give brain whoever gives the best answer

Mathematics

1 answer:

miss Akunina [59]2 years ago

6 0

Answer:

1. 5

2. 16.2

3. 1/8

4. 28.2

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2 square root of negative 18

Karo-lina-s [1.5K]

Answer:

8.48528137 simplified is 8.49

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

the regular price of a t-shirt is $9.99. It is on sale for 15% off. sale tax is 6%. if u give the cashier a $10 bill,how much ch

rewona [7]

You would get back $1

$9.99-$1.50= $8.49 <--- 15% off

$8.49x.06= .51 cents <--- Taxes

$8.49+.51<--cents= $9 <--- Total cost of the T-shirt

4 0

3 years ago

How do i rearrange the formula w = x^2 - 2yz to make y the subject?

iogann1982 [59]

Solve for y by simplifying both sides of the equation, then isolating the variable.
y = x^2/2^z - w/2z

7 0

3 years ago

The original price for the shirt is $30.00. The shirt is on sale for 10% off. What is the sale price of the shirt?

Xelga [282]

Answer:

$3 off which is $27

Step-by-step explanation:

10% of 30 is 3 so you would subtract 30 - 3

and you get $27

8 0

2 years ago

Find the zeros of polynomial function and solve polynomials equations. f(x)=24x^3-64x^2-21x+56

8090 [49]

Since this polynomial has 4 terms, factoring by grouping should be the first thing we try here.

So, we have:

$8x^2(3x-8)-7(3x-8)=0 \implies\\ (8x^2-7)(3x-8)=0$

So, we can use ZPP to find out roots:

$3x-8 =0 \implies\\ x=\frac{8}{3}\\ 8x^2-7=0 \implies \\ 8x^2=7 \implies \\ x^2=\frac{7}{8} \implies \\ x=\pm\frac{\sqrt{7}}{\sqrt{{8}}}\\ \text{Rationalizing denominator:}\\ x=\pm\frac{\sqrt{56}}{8}$

So our three roots are:

$x \in \{\frac{8}{3},\frac{\sqrt{56}}{8},-\frac{\sqrt{56}}{8}\}$

8 0

3 years ago