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3 years ago

Which ordered pair is a solution of the equation

Mathematics

2 answers:

igomit [66]3 years ago

5 0

Answer:

Step-by-step explanation:

Step 1:

Make your equation into y=mx+b format

2x+3y=10 is the same as y=-2/3x+10/3 (10/3 is about 3.33)

Step 2:

Graph your equation

Step 3:

Plot your points and you will see that the only one that works is (2,2)

Hope that helps

Sever21 [200]3 years ago

3 0

Answer:

Step-by-step explanation:

2x+3y where it is 2,2 become 4 plus 6 which is 10

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Which property justifies the fact that 5(x-2)is equivalent to 5x-10

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The distributive property

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3 years ago

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The solid shown has a volume of 9 units3. Determine the surface area of the solid.

nlexa [21]

Answer:

C) 38 units2

Step-by-step explanation:

we know that

The surface area of the composite figure is equal to the area of all its square faces

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4 years ago

Which algebraic expression represents the oference of 54 and a number?<br> 2

Hoochie [10]

Answer:

Step-by-step explanation:

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3 years ago

Sandy wants to cover a wooden cylinder with a diameter of 1 ft and a height of 4 ft with carpet to build a scratching post for h

aleksley [76]

Answer:

Sandy needs $14.13\ ft^{2}$ of carpet to build a scratching post for her cats

Step-by-step explanation:

Sandy needs to calculate the surface area of the cylinder

The surface area of the cylinder is equal to

$SA=2\pi r^{2}+2\pi r(h)$

we have

$r=1/2=0.5\ ft$ ----> the radius is half the diameter

$h=4\ ft$

assume

$\pi =3.14$

substitute the values

$SA=2(3.14)(0.5)^{2}+2(3.14)(0.5)(4)$

$SA=14.13\ ft^{2}$

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3 years ago

Ella and Iris are planning trips to nine countries this year. There are 12 countries they would like to visit. They are deciding

NISA [10]

Using the combination formula, it is found that there are 220 ways to decide which countries to skip.

The order in which the countries are skipped is not important, hence the <em>combination formula </em>is used to solve this question.

<h3>What is the combination formula?</h3>

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by:

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this problem, 3 countries are skipped from a set of 12, hence the number of ways is given by:

$C_{12,3} = \frac{12!}{3!9!} = 220$

More can be learned about the combination formula at brainly.com/question/25821700

#SPJ1

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2 years ago