3 years ago

What is this equation factored49x²-1

Mathematics

1 answer:

Natali [406]3 years ago

5 0

The answer should be (7x+1)(7x-1)

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Solve for x: X^2 = 4/16

Rainbow [258]

We know that

x = $\sqrt{\frac{4}{16}}$

So:

x = $\frac{2}{4}$

6 0

3 years ago

Using Euler’s formula, how many edges does a polyhedron with 20 faces and 12 vertices have?

astra-53 [7]

Euler's formula for a polyhedron is given by:

$\begin{gathered} F+V=E+2 \\ \text{where,} \\ F=\text{faces} \\ V=\text{vertices} \\ E=\text{edges} \end{gathered}$

Make E, the subject of the formula:

$\begin{gathered} F+V=E+2 \\ E=F+V-2 \end{gathered}$

Put F = 20, V = 12, to obtain E,

$\begin{gathered} E=20+12-2 \\ E=30 \end{gathered}$

Therefore, there are 30 edges

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1 year ago

Solve for the rational equation 1/x = x/x+1

babymother [125]

Answer:

the answer is x=1/2

Step-by-step explanation:

hope this helps if not let me know have a blessed day

8 0

1 year ago

Solve for x. <br> A) 11<br> B) 9<br> C) 6<br> D) 7

DIA [1.3K]

Answer:

Step-by-step explanation:

Angle BCA is inscribed in that circle. The rule is that the inscribed angle is half the measure of the arc it intercepts. The arc it intercepts is arc AB which measures 96 degrees. That means that

$4x+4=\frac{1}{2}(96)$ and

4x + 4 = 48 and

4x = 44 so

x = 11

Choice A is the one you want.

8 0

3 years ago

Need help solve for x

Alenkinab [10]

$30 dollars i thinks cause 40 minus 30 is ten

4 0

3 years ago

What is this equation factored49x²-1​

What is this equation factored49x²-1