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3 years ago

The discriminant finds the

1 answer:

4 0

Answer: The discriminant is the part of the quadratic formula underneath the square root symbol: b²-4ac. The discriminant tells us whether there are two solutions, one solution, or no solutions.

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The arithmetic sequence a; is defined by the formula:

Morgarella [4.7K]

Answer:

The sum of the first 650 terms of the given arithmetic sequence is 2,322,775

Step-by-step explanation:

The first term here is 4

while the nth term would be ai = a(i-1) + 11

Kindly note that i and 1 are subscript of a

Mathematically, the sum of n terms of an arithmetic sequence can be calculated using the formula

Sn = n/2[2a + (n-1)d)

Here, our n is 650, a is 4, d is the difference between two successive terms which is 11.

Plugging these values, we have

Sn = (650/2) (2(4) + (650-1)11)

Sn = 325(8 + 7,139)

Sn = 325(7,147)

Sn = 2,322,775

6 0

3 years ago

Find the area of this circle. Use 3 for T.<br> A = ar2<br> 1 ft<br> [?] ft2

malfutka [58]

3 ft^2

A= 3(1)^2
A=3•1
A=3

4 0

3 years ago

Given: ABCD is a trapezoid with AB || DC. If m∠A = 125 and m∠B = 99, find m∠C/

Pavlova-9 [17]

Answer:

The measure of angle C is $81\°$

Step-by-step explanation:

we know that

If AB || DC

then

$m$ -----> supplementary angles by consecutive interior angles

and remember that the sum of the interior angles in a trapezoid is equal to 360 degrees

$m$

step 1

Find the measure of angle D

$m$

substitute the measure of angle A

$125\°+m$

$m$

step 2

Find the measure of angle C

$m$

substitute the values

$125\°+99\°+m$

$m$

5 0

3 years ago

Manuel ate 1/3 of the cracker on a plate. His brother ate 1/4 of the cracker. their were 5 crackers left on the plate. How many

Lynna [10]

5 and 7/12 of a cracker

6 0

3 years ago

Read 2 more answers

What is the length of feet in 5 equal length of ribbon equaling 2 yards of ribbon

alisha [4.7K]

Am presuming you are asking for the length of each ribbon in feet.

5 of them = 2 yards.

1 of them = 2/5 = 0.4 yards.

But note 3 feet make 1 yard.

Therefore: 0.4 yards = 0.4 * 3 feet = 1.2 feet.

3 0

3 years ago