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Anastaziya [24]
3 years ago
15

Which technique is best to use for x² + 4x = 15

Mathematics
1 answer:
viktelen [127]3 years ago
6 0

U want to go x2 plus x so its x3 then 4x3times -15 so x=3.33333

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You send a text to a friend. Your friend forwards it to 10 other friends, who each forward it to 10 more friends. The pattern co
elena-14-01-66 [18.8K]

Answer:

a. The number of people that receive the text in the fourth round are 10³ people

b. The total number of people that receive the text are 1.1111 × 10⁴ people

Step-by-step explanation:

a. The given information are;

The number of people the text is sent to in the first round = 1

In the second round, the number of people the text is sent to by people in the first round = 10

In the third round, the number people the text is sent to by the 10 people in the second round = 10 × 10 = 100 people = 10² people

In the fourth round, the number of people the text is sent to by the people in the third round = 100 × 10 = 1000 people = 10³ people

The number of people that receive the text in the fourth round = 10³ people

b. In the fifth round, the number of people, the people in the fourth round send the text to = 1000 × 10 = 10000 people = 10⁴ people

The total number of people that receive the text = 1 + 10 + 10² + 10³ + 10⁴ people =  11111 people = 1.1111 × 10⁴ people

5 0
4 years ago
PLEASE HELP ME OUT LOOK AT THE IMAGE BELOW
Lelu [443]

Answer:

Let me know if you want more explanation

Step-by-step explanation:

Alright, to solve for x we need 2 angles that are congruent or equal.

I'm going to use the two we will need later. KLN and MNL

Now to find x ^^

2x-18=x+6\\2x-18-x=x+6-x\\x-18=6\\x-18+18=6+18\\x=24

Now we just need to plug it into each angle. I'm going to show you them separately.

KLN=2x-18\\KLN=2(24)-18\\KLN=48-18\\KLN=30

MNL=4x-6\\MNL=4(24)+6\\MNL=102

should be right now.

3 0
3 years ago
Jack broke apart 5x216 as (5x200) + (5x16) to multiply mentally.What strategy did Jack use?
zmey [24]
C is the answer i believe
4 0
3 years ago
By rounding each number to 1 significant figure estimate the answers to:<br> 39x52divided by 3.8x4.9
mestny [16]
(39x52=2028) (3.8x62=18.62) 2028 divided by 18.62 equals (108.915145) 108.91
6 0
3 years ago
If a car goes around a turn too quickly, it can leave tracks that form an arc of a circle. By finding the radius of the circle,
Sveta_85 [38]
I just encountered this question. Here's my answer. 

Given:
Segment AC = 130 feet
Segment CD = 70 feet

I think that I'll be using the Pythagorean Theorem in finding the value of r. r will be the hypotenuse

Segment CE = (r - 70 feet)

r² = a² + b²
r² = 130² + (r-70)²
r² = 16,900 + (r-70)(r-70)
r² = 16,900 + r² - 70r - 70r + 4900
r² - r² + 140r = 16,900 + 4,900
140r = 21,800
r = 21,800/140
r = 155.71 feet

<span>The radius of the circle is 155.71 feet.</span>
3 0
3 years ago
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