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3 years ago

Given the sequence 7, 14, 28, 56, ..., which expression shown would give the tenth term? A. 7^10 B. 7·2^10 C. 7·2^9

Mathematics

1 answer:

musickatia [10]3 years ago

4 0

Answer:

A. 7^10. Hope this helps!

Step-by-step explanation:

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Tamara finds the sum of two number cubes rolled at the same time. The chart below shows all possible sums from the 36 possible c

Georgia [21]

Answer:

18 times

Step-by-step explanation:

Sample space ; roll of 2 number cubes = 6^2 = 36

Sum of 4 in 2 cube rolls = 3

Probability = required outcome / Total possible outcomes

P(sum of 4) = 3 / 36 = 1 / 12

If number cube is rolled 216 times :

Probability on 1 roll * Number of rolls

(1 / 12) * 216

0.0833333 * 216

= 18

3 0

2 years ago

Sunny_sXe [5.5K]

The solutions of the equations are -1.3 and -7.7

Step-by-step explanation:

The quadratic formula of solving the quadratic equation

ax² + bx + c = 0, where a, b and c are constant is:

$x=\frac{-b+-\sqrt{b^{2}-4ac}}{2a}$

To solve the quadratic equation by using the quadratic formula

1. Find the values of a , b and c from the equation

2. Substitute the values of a , b and c in the quadratic formula

3. Find the two values of x

∵ x² + 9x + 10 = 0

∴ a = 1 , b = 9 and c = 10

∵ $x=\frac{-9+\sqrt{(9)^{2}-4(1)(10)}}{2(1)}$

∴ $x=\frac{-9+\sqrt{81-40}}{2}$

∴ $x=\frac{-9+\sqrt{41}}{2}$

∴ x = -1.3

∵ $x=\frac{-9-\sqrt{(9)^{2}-4(1)(10)}}{2(1)}$

∴ $x=\frac{-9-\sqrt{81-40}}{2}$

∴ $x=\frac{-9-\sqrt{41}}{2}$

∴ x = -7.7

The solutions of the equations are -1.3 and -7.7

Learn more:

You can learn more about quadratic equation in brainly.com/question/8196933

#LearnwithBrainly

6 0

3 years ago

SOMEONE PLEASE HELP I DONT UNDERSTAND THIS LOL

ArbitrLikvidat [17]

Answer:

VZ = 17
XZ = 34

Step-by-step explanation:

If we assume the figure is a parallelogram, then the diagonals bisect each other.

XV = VZ

27 -2x = 3x +2

25 = 5x . . . . . . . . add 2x-2 to both sides

5 = x

Then the desired measures are ...

VZ = 3(5) +2 = 17

XZ = 2(VZ) = 34

3 0

2 years ago

How do I do this fraction with Distributive Property???

Olenka [21]

Answer:

$3a - 1$

Explanation:

$\frac{9a - 3}{3}$

Factor out 3

$\frac{3(3a - 1)}{3}$

Cancel out the common factor 3

$3a - 1$

5 0

2 years ago

An average library contains at least 50 and at most 250 books. How many library owners must be polled to be certain that at leas

Marta_Voda [28]

Math - Steve, Wednesday, May 7, 2014 at 4:35pm
there are 201 numbers from 50 to 250.

So, clearly, if 202 people are polled, at least two of them must have the same number.

5 0

3 years ago