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3 years ago

For which equation does it make the most sense to solve by using the square root property?

Mathematics

2 answers:

Lerok [7]3 years ago

6 0

The answer is B. I know this for a fact. (just took the test)

VARVARA [1.3K]3 years ago

4 0

The answer 4x^2-5=20 i just took the test

You might be interested in

a car decreased in value from $980 to $720 in one year what was the per cent of decrease to the nearest whole per cent ?

kolezko [41]

The decrease was 27%.

Step-by-step explanation:

Old value = $980

New value = $720

Decrease = Old value - New value

$Decrease=980-720=\$260$

Percent decrease = $\frac{Decreased/ amount}{Old value}*100$

$Percent\ decrease=\frac{260}{980}*100\\Percent\ decrease=0.265*100\\Percent\ decrease= 26.5\%$

Rounding off to near whole percent

Percent decrease = 27%

The decrease was 27%.

Keywords: Percentage, subtraction

Learn more about subtraction at:

#LearnwithBrainly

6 0

2 years ago

A circle has a radius of 13in . find the radian measure of the central angle ? that intercepts an arc of length 15in

steposvetlana [31]

Find the circumference which is 2*3.14*13 and then usethe central angle formula

7 0

3 years ago

The length of the diameter, d, of the circle is 16cm. Find the length of the radius, r, of the circle.

Anna71 [15]

The radius would be 8cm.

8 0

3 years ago

Is it possible for any angle A, sinA=7/5Explain.

Sedaia [141]

Answer:

Step-by-step explanation:

note $\frac{7}{5}$ = 1.4

and sinA is defined for - 1 ≤ sinA ≤ 1

Thus sinA ≠ $\frac{7}{5}$

4 0

3 years ago

Scientists are examining two different strains of a particular bacteria. The length of one strain of the bacteria measures 0.000

vesna_86 [32]

Scientists are examining two different strains of a particular bacteria. The length of one strain of the bacteria measures 0.000000368

mm, while the length of the second strain measures 0.000000064 mm. How much larger is the first strain than the second?

We can figure this out using scientific notation.

$0.000000368 - 0.000000064$

$= 3.04e-7$

Put 3.04e-7 in standard notation.

$0.00000304$

Put 0.00000304 back into scientific notation, instead with a multiply sign.

Move the dot back, making the number in between 1-10.

In this case, we would move it back 7 times.

$3.04$ · $10x^{-7}$

So the answer would be A.

3 0

2 years ago