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3 years ago

10r2 - 6= 0 solve in quadratic formula

Mathematics

1 answer:

3241004551 [841]3 years ago

5 0

Answer:

Exact form - r = +square root 15/6

Decimal form - r = 0.77459666... , -0.77459666...

Step-by-step explanation: Solve the equation for r by finding a,b, and c of the quadric then applying the quadric formula.

Hope this helps you out! ☺

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Which expression is modeled by this arrangement of tiles? 40 positive tiles are broken up into 10 groups of 4 positive tiles. 40

Dafna1 [17]

An expression is defined as a set of numbers, variables, and mathematical operations. The correct option is B.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

Given 40 positive tiles are broken up into 10 groups of 4 positive tiles. The expression that represents this situation is 40 divided by 10.

Hence, the correct option is B.

Learn more about Expression:

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2 years ago

(3/5)^2+4X3-2 what is the value of the expression

Sliva [168]

Answer:

10.36

Step-by-step explanation:

So your solution would be:

$(\frac{3}{5})^{2} + 4 \times 3 - 2$

$=(\frac{3}{5})^{2} + 4 \times 3 - 2$

$=\dfrac{3^{2}}{5^{2}} + 4 \times 3 - 2$

$=\dfrac{9}{25} + 4 \times 3 - 2$

$=0.36 + 4 \times 3 - 2$

$=0.36 + 12 - 2$

$=12.36 - 2$

$=10.36$

Just try to remember PEMDAS.

Parenthesis, Exponent, Multiplication/Division, Addition/Subtraction.

This is the order we follow when going about expressions with many operations.

Let's start with the parenthesis part. Notice that there is an exponent beside the parenthesis enclosing the fraction. Here we use the quotient to a power rule. We distribute the exponent to the numerator and the denominator.

$=(\frac{3}{5})^{2} + 4 \times 3 - 2\\$

$=\dfrac{3^{2}}{5^{2}} + 4 \times 3 - 2$

$=\dfrac{9}{25} + 4 \times 3 - 2$

Now that we got the parenthesis and exponent out of the way, let's move on to the next. Multiplication/Division. Whichever comes first, you do it first.

We have a fraction so we do that first. Then we do the multiplication after.

$=0.36 + 4 \times 3 - 2$

$=0.36 + 12 - 2$

Next we do the addition/subtraction. Again, whichever comes first.

$=12.36 - 2$

$=10.36$

7 0

4 years ago

Which expression is equal to 4(2a plus b)

arlik [135]

Answer:

8a + 4b

Step-by-step explanation:

4(2a+b) = 8a+4b

6 0

4 years ago

Read 2 more answers

The square root for 160

ivann1987 [24]

Answer:

12.6 maybe? Thats what it most likely is

3 0

2 years ago

+22 + +14 + -10 + +10 + -22 + +14 = n

professor190 [17]

Answer:

Solve for n:

28 = n

Hint: | Reverse the equality in 28 = n in order to isolate n to the left hand side.

28 = n is equivalent to n = 28:

Answer: n = 28

Step-by-step explanation:

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3 years ago