3 years ago

Select all the inequalities that have symbols that will be reversed when the variable is isolated.

Mathematics

1 answer:

LenaWriter [7]3 years ago

5 0

Answer:

-4.5c > 9 will have its inequality symbol reversed

-215 ≤ -52d will have its inequality symbol reversed

Step-by-step explanation:

anytime you are multiplying or dividing an inequality by a negative you must reverse the inequality symbol

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In the after school Dena, Shawn, and Amanda knit scarfs that are the same size with yellow, white, and blue yarn. Denas scarf is

jenyasd209 [6]

Answer:

$\frac{8}{20}$

Step-by-step explanation:

We have been given that in the after school Dena, Shawn, and Amanda knit scarfs that are the same size with yellow, white, and blue yarn. Denas scarf is 2/5 yellow, Shawn's scarf is 3/5 , and Amanda's scarf is 3/4 yellow.

To make Amanda's argument true, let us compare each fraction by making a common denominator.

We can see that least common denominator of each fraction would be 20.

$\text{Dena's scarf}=\frac{2}{5}\Rightarrow\frac{2*4}{5*4}=\frac{8}{20}$

$\text{Shawn's scarf}=\frac{3}{5}\Rightarrow\frac{3*4}{5*4}=\frac{12}{20}$

$\text{Amanda's scarf}=\frac{3}{4}\Rightarrow\frac{3*5}{4*5}=\frac{15}{20}$

Since $\frac{8}{20}$ , therefore, Amanda's scarf has the most yellow.

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3 years ago

What’s the radius of a sphere with a surface area of 4pie square feet

In-s [12.5K]

Set up an equation

$4\pi r^2$ = $4\pi$

Solve.

$4\pi /4\pi = 1$

$r^2 = 1$

$r = \sqrt{1}$

$r = 1$

Answer

$r = 1$

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3 years ago

19. In the diagram below, which of the following pairs are vertical angles?

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Answer:

19 ) B (<2 and <5)

20) A(20)

21 and 22 Don't know sorry

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A certain triangle has two 45 degree angles. what type of triangle is it?

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Answer:

The answer is B. Acute isosceles

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one possible combination is red and hearts. write down all the other possible combinationas. write your answer like this (R,H) y

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Answer:

hmmmm.... sorry but i really dont know this yet

Step-by-step explanation:

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