All categories

3 years ago

Express 4x^2-25 as a product of two binomials.

Mathematics

2 answers:

Ede4ka [16]3 years ago

8 0

$4x^2-25=(2x)^2-5^2=(2x-5)(2x+5)$

Andrei [34K]3 years ago

5 0

4x^2-25= (2x)^2-5^2=(2x-5)(2x+5)

Used: a^2-b^2=(a+b)(a-b)

You might be interested in

A line with a slope of 5 passes through the point (0,0). What is its equation in slope-intercept form?

Masja [62]

Answer:

y=5x or y=5x+0

Step-by-step explanation:

there is a slope of 5 and it has no setoff

5 0

2 years ago

Expand the expression (3-2y)^6 using binomial theorem

Nitella [24]

She should have added 2 to both sides of the equation instead of subtracting 2.

2x -2 = 14

Add 2 to both sides:

2x = 16

Divide both sides by 2:

x = 8

5 0

3 years ago

Determine whether each exponential equation is a decay or a growth.

kolezko [41]

Answer:

OHHH THE ANSWER IS 1 would be pie 7 and the last one is .9 ok thanks for 15 points

Step-by-step explanation:

STEP 1: GO GET A CALULATOR

STEP 2 GO F UR STEP SIS

5 0

2 years ago

2y-x=2 substitute solution?

DerKrebs [107]

Answer:

Y=1 X=0

Step-by-step explanation:

5 0

3 years ago

An amusement park has discovered that the brace that provides stability to the ferris

antiseptic1488 [7]

Answer:

Hence the correct answer is option (A) 4.708.

Step-by-step explanation:

Solution:-

Now, we need to find the angle of the sector by using sector formula,

$A = 28.25 ft^{2} \\r = 12ft.\\\\28.25 = \frac{\theta}{360^{o} } \times \pi \times 12^{2} \\\\\theta=\frac{28.25\times 360}{12 \times12 \times \pi} \\\\\theta =( \frac{70.625}{\\pi} )^{o}$

We now convert the angle to radian

$\theta = \frac{70.625}{\pi} \times \frac{\pi}{180}\\\\\theta = 0.39236 radian$

Now we calculate the length of arc by arc formula

$\theta=\frac{I}{12} \\\\0.39236 =\frac{I}{12}\\\\I = 4.708 feet.$

So, The length of steel that must be replaced is 4.708 ft.

4 0

3 years ago