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2 years ago

3 root 5c*root 15c^3

Mathematics

1 answer:

DIA [1.3K]2 years ago

6 0

$15c^{2} \sqrt{3}$ is the answer

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What is<br> -1 5/6 - (-3 1/4) ?

lions [1.4K]

Answer:

$1\frac{5}{12}$

Step-by-step explanation:

Eliminating a negative and changing our operation

$1\frac{5}{6} +3\frac{1}{4}$

Rewriting our equation with parts separated

$-1-\frac{5}{6} +3+\frac{1}{4}$

Solving the whole number parts

$-1+3=2$

Solving the fraction parts

$-\frac{5}{6} +\frac{1}{4} =[?]$

Find the LCD of 5/6 and 1/4 and rewrite to solve with the equivalent fractions.

LCD = 12

$-\frac{10}{12} +\frac{3}{12}=-\frac{7}{12}$

Combining the whole and fraction parts

$2-\frac{7}{12} =1\frac{5}{12}$

[RevyBreeze]

8 0

2 years ago

-8x^2+4x+5=0 using quadratic formula

daser333 [38]

So you want to solve for x?

It would be nice if this would easily factor:
(-4x + 5)(2x +1) = 0    This will not work!

So you need to use the quadratic formula:
a = -8, b = 4, c = 5

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

x = (-4 +/- $\sqrt{16-4(-8)(5)}$ )/2(-8)
   = (-4 +/- $\sqrt{16 + 160}$ )/-16
   = (-4 + $\sqrt{176}$ )/-16
   = 1/4 - $\sqrt{11}$ /4

6 0

2 years ago

One-third of a number is 12<br> Work out one-half of the number

marshall27 [118]

If 1/3 = 12, then multiply 12 by 3 to get the number, which is 36

then split 36 in half, and you get 18.

hope this helps!

4 0

2 years ago

Read 2 more answers

PLEASE HELP ASAP 50 PTS + BRAINLIEST TO RIGHT/BEST ANSWER

Nonamiya [84]

Answer:

Step-by-step explanation:

Using the coefficients of each term and evaluating for h = - 4

- 4 | 1 - 7 - 7 20

↓ - 4 44 - 148

---------------------------

1 - 11 37 - 128 ← remainder

Quotient = x² - 11x + 37 , R - 128

8 0

2 years ago

Read 2 more answers

Determine which equation is written in function form:

Mila [183]

<em>Greetings from Brasil... </em>

A 1st degree function can be written in two ways:

F(X) = AX + B

Y = AX + B

note that F(X) = Y

So, looking at the alternatives in the question, only Y = 7X/3 - 8 is equivalent to Y = AX + B, where:

A = 7/3

B = - 8

then

$\large{\boldsymbol{\mathbf{Y = \frac{7X}{3}-8\Leftrightarrow Y=AX+B}}}$ <em>a function of the 1st degree</em>

answer:

7 0

3 years ago