Ask question

Ask question

All categories

3 years ago

13

Algebra question pleaseeee help

1 answer:

Marat540 [252]3 years ago

3 0

Answer:

Exponential growth, 130%

Step-by-step explanation:

The number being multiplied as x is changing is 1.3, and that represents growth because it is greater than 1. The rate of growth would then be 130%, as 1.3 represented as a percentage is 130%.

You might be interested in

What ordered pair represents the y-intercept of the graph of x+y=9?

s344n2d4d5 [400]

We can rearrange

x + y = 9

in to

y = 9 - x

This means the value of y is EQUAL to 9 minus the value of x.

[A] fits this description, because y (9) is equal to 9 minus x (0).

[B] does too, because y (0) is equal to 9 minus x (9).

4 0

3 years ago

Is (1, 2) a solution of the system y > 2x and x+y<3?

m_a_m_a [10]

Answer:

d

Step-by-step explanation:

To determine if (1, 2) is a solution to the system

Substitute x = 1, y = 2 into the inequalities and check their validity.

y > 2x → 2 > 2 ← incorrect statement

x + y < 3

1 + 2 < 3 → 3 < 3 ← incorrect statement

(1, 2) is not a solution to either inequality → d

6 0

3 years ago

Prove each statement that is true and ﬁnd a counterexample for each statement that is false. Assume all sets are subsets of a un

tekilochka [14]

Answer with Step-by-step explanation:

We are given that A, B and C are subsets of universal set U.

We have to prove that

$A\cap (B-C)=(A\cap B)-(A\cap C)$

Proof:

Let x $\in A\cap (B-C)$

Then $x\in A$ and $x\in(B-C)$

When $x\in ( B-C)$ then $x\in B$ but $x\notin C$

Therefore, $x\in( A\cap B)$ but $x\notin (A\cap C)$

Hence, it is true.

Conversely , Let $x\in(A\cap B)$ but $x\notin(A\cap C)$

Then $x\in A$ and $x\in B$

When $x\notin ( A\cap C)$ then $x\notin C$

Therefor, $x\in A\cap (B-C)$

Hence, the statement is true.

5 0

3 years ago

a cylinder and a cone have the same radius and height. The volume of the cylinder is 534ft3 . what volume of the cone?

DochEvi [55]

Answer: 178 ft^3

Step-by-step explanation:

A cylinder has the formula V=pi radius ^2 height

A cone has the formula V= 1/3 pi radius ^2 height

So 1/3 of the volume of the cylinder is the volume of a cone

1/3 of 534 = 178 ft^3

5 0

2 years ago

Josie read 246 pages of a book last month her older brother says he read about 3 to 4 times as many pages as Josie explain why 2

Lubov Fominskaja [6]

Answer:

2500 is not a reasonable estimate.

Step-by-step explanation:

We are given the following in the question:

Number of pages read by Josie = 246

Pages read by older brother = 3 to 4 times as many pages as Josie

If x represents the number of pages read by her brother, we can write:

$3(\text{Pages read by Josie})\leq x \leq 4(\text{Pages read by Josie})$

Putting values, we get,

$3(246) \leq x \leq 4(246)\\738 \leq x \leq 984$

Since, 2500 does not lie in this interval

$738 \leq 2500 \nleq 984$

Thus, 2500 is not a reasonable estimate for the number of pages that Josie's brother read.

8 0

3 years ago