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3 years ago

Helpppppppppppppppppppp pretty please im very desperate

Mathematics

2 answers:

laila [671]3 years ago

7 0

Answer:

the first one is no it's nonproportional

and the second one it yes its proportional

lord [1]3 years ago

7 0

Answer:

1. No it is nonproportional

2. Yes, it is proportional

Step-by-step explanation:

To find the ratio, divide the number of oranges with the total cost. If you get equal ratio(s) then the data is proportional.

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Q : what 1:9 x 6 = ?

kow [346]

Answer:

the answer is $\frac{2}{3}$

Step-by-step explanation:

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can I get brainliest plz

4 0

3 years ago

Read 2 more answers

If a 60 year old buys a $1000 life insurance policy at a cost of $50 and has a probability of 0.954 of living to age 61 find the

ANTONII [103]

Answer:

The expectation of the policy until the person reaches 61 is of -$4.

Step-by-step explanation:

We have these following probabilities:

0.954 probability of a loss of $50.

1 - 0.954 = 0.046 probability of "earning" 1000 - 50 = $950.

Find the expectation of the policy until the person reaches 61.

Each outcome multiplied by it's probability, so:

$E = -0.954*50 + 0.046*950 = -4$

The expectation of the policy until the person reaches 61 is of -$4.

6 0

3 years ago

If X = 13 units, Y = 12 units, and Z = 15 units, what is the volume of the rectangular prism shown above?

Basile [38]

Volume of the Rectangular prism is 2340 square units

Step-by-step explanation:

Given:

X = 13 units,

Y = 12 units,

Z = 15

To Find:

The volume of the rectangular prism = ?

Solution:

The volume of the rectangular prism = $X \times Y \times Z$

On substituting the values,

Volume of the Rectangular prism = $13 \times 12 \times 15$

Volume of the Rectangular prism = 2340 square units

3 0

3 years ago

Change the subject of the formula L = v 4kt - p to k.

Romashka [77]

Answer:

$\boxed{k = \frac{L^2 + p}{4t}}$

General Formulas and Concepts:

Algebra I

Basic Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

Identify given.

$\displaystyle L = \sqrt{4kt - p}$

Step 2: Solve for k
We can use equality properties to help us rewrite the equation to get k as our subject:

Let's first square both sides:

$\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\\end{aligned}$

Next, add p to both sides:

$\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\& \rightarrow L^2 + p = 4kt \\\end{aligned}$

Next, divide 4t by both sides:

$\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\& \rightarrow L^2 + p = 4kt \\& \rightarrow \frac{L^2 + p}{4t} = k \\\end{aligned}$