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4 years ago

How to write expressions

Mathematics

2 answers:

PolarNik [594]4 years ago

7 0

Use x, +.-,,= and the division symbol

zmey [24]4 years ago

6 0

To write an expression, you need operators such as -,+,or *. You will also require numbers, or in algebraic cases, variables. Two expressions that equal each other are considered <em>equations</em>. Know that <em>expressions</em> do not have equal signs, this is what separates them from a standard <em>equation</em>.

Some examples of expressions:

2 + 5

3 - 2

10 + 4

Some examples of equations

2 + 3 = 4 + 1

9 - 3 = 5 +1

2 * 10 = 5 + 15

Thank me later :)

(or just give brainliest)

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x inches .............8/8

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3 years ago

Which relation is a function?

Ksivusya [100]

B. To see if it’s a function, it has to pass the vertical line test. That means draw a vertical line (going up and down) through any point on the graph and it can only go through one point. If it goes through more than 1, it’s not a function. Like in graph A, if you draw a vertical line at x=-2, it will go through two points, same at x=2. For graph b, no matter where you move a vertical line, it only passes through one point at a time, so it passes the vertical line test.

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2 years ago

What two numbers multiply to 10 and add to -29 ?

Degger [83]

Xy=10
x+y=29

subtract x from both sides for second equation

y=-x-29
subsitute in second equaiton
x(-x-29)=10
-x^2-29x=10
add x^2+29x to both sides
x^2+29x+10=0
quadratic formula
if you have
ax^2+bx+c=0,
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

so
x^2+29x+10=0
a=1
b=29
c=10
x= $\frac{-29+/- \sqrt{(-29)^{2}-4(1)(10)} }{2(1)}$
x= $\frac{-29+/- \sqrt{841-40} }{2}$
x= $\frac{-29+/- \sqrt{801} }{2}$
x= $\frac{-29+/- 3\sqrt{89} }{2}$

x= $\frac{-29- 3\sqrt{89} }{2}$ or $\frac{-29+ 3\sqrt{89} }{2}$
those are the 2 numbers
aprox=-28.65 and -0.349

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3 years ago

Read 2 more answers

When a number x is divided by 24 the remainder is 23 and when it is divided by 36 the remainder is 35. Find the least number tha

Snezhnost [94]

Answer:

7 is the answer. If a number can be divided by 36 then it can also be divided by 12 which is 3*12 therefor the remainder will be 19-12 which is 7. When 19 is divided by 36, the remainder is 19 and so 19 must be a number. When 19 is divided by 12 the remainder is 7.

Step-by-step explanation:

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4 years ago

What is 149 times 235 equal to

tino4ka555 [31]

<span>149 times 235 is equal to </span>35,015.

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3 years ago