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Tanya [424]
2 years ago
15

What dose "{" mean in algebra? Ex. {4y-2x-8 {5x-4y=20

Mathematics
1 answer:
GaryK [48]2 years ago
4 0

Answer:

System of Equations

Step-by-step explanation:

A system of equations refers to a number of equations with an equal number of variables. We will only look at the case of two linear equations in two unknowns. The bracket on the left indicates that the two equations are intended to be solved simultaneously, but it is not always used.

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umka2103 [35]
Congruent because 2 is a larger number then one and 1 is a smalled number then 2
7 0
2 years ago
It is about 1.62×10⁶ miles from Venus to Earth. It is about 5.4×10⁷ from Earth to Mars. How far is it total from Venus to Earth
Lubov Fominskaja [6]

Answer:

-5.238- 10^{7}

or

Since the exponent of the scientific notation is positive, move the decimal point  6  places to the right.

1620000

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Hope this helps :)

4 0
2 years ago
What is the volume of a right circular cone if the circumference of the base is 125.6 ft and the height is 75 ft.?
Eddi Din [679]

Answer:

Hence the volume of the cone is 31384.52 cubic feet

Step-by-step explanation:

We must first need to understand how the volume of a cone is calculated.

It is simply calculated by multiplying the base area of the cone by the height, and dividing the result by 3.

This is :

Volume of cone = \frac{\pi r^2 h}{3}

we are not given the base area of the cone. However, we are given the circumference from which we can get the radius of the base.

Circumference =

2 \pi r=125.6ft\\r =125.6/2 \pi=19.99ft

hence the volume of the cone is

\frac{\pi (19.99)^2 75}{3}=31384.52ft^{3}

Hence the volume of the cone is 31384.52 cubic feet

3 0
2 years ago
874 simplest form please need it for quizzz
kow [346]

Answer:

Step-by-step explanation:

I'm not quite sure what you mean.... do you mean 8/74? If so, the answer would be 4/37, because anything lower that that would have a decimal.

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2 years ago
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vovikov84 [41]

Answer:

PLZZZZ I WANT BRAINIEST IM ONLY IN MIDDLE SCHOOL PLZZZZ BRAINIEST!

Step-by-step explanation:

4 0
3 years ago
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