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3 years ago

For the Henry question how can u write ur answer as a decimal

Mathematics

2 answers:

kvasek [131]3 years ago

7 0

You cannot turn whole numbers into decimals, unless you add zeroes at the end like this- 500.00. You can only turn fractions into decimals

Pie3 years ago

7 0

Answer:

put it into a higher amount like from cups to gallons

Step-by-step explanation:

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Solve the equation by using the quadratic formula. 3 x squared minus 1 = 7 x

Paladinen [302]

Answer:

b. $\frac{7+\sqrt{61} }{6} ,\frac{7-\sqrt{61} }{6}$

Step-by-step explanation:

$3x^{2} -1=7x$

Quadratic equations are suppose to be written as: $ax^2+bx+c=0$

so the new quadratic equation for this problem will be: $3x^{2} -1-7x=0$

Now rearrange the terms: $3x^{2} -7x-1=0$

Then use the Quadratic Formula to Solve for the Quadratic Equation

Quadratic Formula = $x=\frac{-b±}{} \frac{\sqrt{b^2-4ac} }{2a}$

Note: Ignore the A in the quadratic formula

Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.

$3x^{2} -7x-1=0$

a = 3

b = -7

c = -1

$x=-(-7)±\frac{\sqrt{(-7)^2-4(3)(-1)} }{2(3)}$

Evaluate The Exponent

$x=\frac{7±\sqrt{(49)-4(3)(-1)} }{2(3)}$

Multiply The Numbers

$x=\frac{7±\sqrt{49+12} }{2(3)}$

Add The Numbers

$x=\frac{7±\sqrt{61} }{2(3)}$

Multiply The Numbers

$x=\frac{7±\sqrt{61} }{6}$

4 0

3 years ago

1. Evaluate 6x/y when x=10 and y=5 (the slash means to divide) 10 12 50

Nikolay [14]

Answer:

(6*10)/5

= 60/5

= 12

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

You need 200 mL of a 10% alcohol solution. On hand, you have a 25% alcohol mixture. How much of the 25%

Anastasy [175]

so yull do math I'm guna do different number just plug these in for.your numbers 225/(375+x)=25

cross multiply land solve900-375 x=525 then cheak

225/(375+525) = .25

4 0

2 years ago

Find the volume of the composite solid.

Andreas93 [3]

Answer:

The answer would be c

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

-5√112 I have to solve this using perfect square factors, is anyone familiar with those?

svp [43]

Answer:

-20√7

Step-by-step explanation:

Here. we want to write this in the simpler form

we can have 112 as; 16 * 7

√112 = √(16*7)

√112 = 4 √7

so, we have

-5 * 4 √(7 = -20 √7

5 0

3 years ago