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3 years ago

Which expression has a negative value?

Mathematics

2 answers:

user100 [1]3 years ago

7 0

It would be 35? is this right

Tom [10]3 years ago

5 0

Negative 35 divided by 5

Step-by-step explanation:Have a good day :)

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What is the probability that a patient shows improvement

Alexeev081 [22]

Answer:

.3375

Explanation:

Total people who were given drug: 800

Total people who showed improvement: 270

Probability:

$\boxed{ \sf \dfrac{favorable \ outcomes }{total \ possible \ outcomes}}$

insert values

$\rightarrow \sf \dfrac{270}{800}$

simplify

$\rightarrow \sf \dfrac{27}{80}$

in decimals

$\rightarrow \sf 0.3375$

3 0

2 years ago

Read 2 more answers

A single die is rolled twice. Find the probability of rolling an even number the first time and a number greater than 3 the seco

IceJOKER [234]

Events

• A: an even number is rolled in the first time

• B: a number greater than 3 is rolled the second time

The probability of rolling an even number is:

$\begin{gathered} P(A)=\frac{\text{ number of favorable outcomes}}{\text{ total possible outcomes}} \\ P(A)=\frac{3}{6} \\ P(A)=\frac{1}{2} \end{gathered}$

The probability of rolling a number greater than 3 is:

$\begin{gathered} P(B)=\frac{\text{ number of favorable outcomes}}{\text{ total possible outcomes}} \\ P(B)=\frac{3}{6} \\ P(B)=\frac{1}{2} \end{gathered}$

Events A and B are independent, then the probability of one happening after the other is:

$\begin{gathered} \text{ P(A and B) = }P(A)\cdot P(B) \\ \text{ Substituting with the values previously found:} \\ \text{ P(A and B) = }\frac{1}{2}\cdot\frac{1}{2} \\ \text{ P(A and B) = }\frac{1}{4} \end{gathered}$

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1 year ago

A rectangular flower garden has an area of 75 square feet. It is 15 feet long. How wide is the garden? *

nlexa [21]

A. 5 feet

To find the area of a rectangle, multiply length by width. Since the length is 15, you divide 75 by 15, so the width would be 5 feet.

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4 years ago

Which number is closest to sqrt(10). A)3.1 B)4.3 C)3.6 D)2.8

Aleonysh [2.5K]

Answer:

Step-by-step explanation:

sqrt(10)=3.2 (rounded to the nearest tenth). 3.2 is closer to 3.1 than 3.6 .

8 0

3 years ago

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What is the ratio of no. lines of symmetry of an isosceles triangle to an equilateral triangle

kicyunya [14]

Answer: 1 : 3

Step-by-Step Explanation:

No. Of Lines of Symmetry for an Equilateral Triangle is 3.

No. Of Lines of Symmetry for an Isosceles Triangle is 1.

Therefore,
= 1/3
=> 1 : 3

The Ratio of the Number of Lines of Symmetry for an Isosceles Triangle to that of an Equilateral Triangle is 1 : 3

7 0

2 years ago