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defon
3 years ago
9

Solve for x 0.5x+78.2=287

Mathematics
1 answer:
joja [24]3 years ago
3 0
First subtract 78.2 from 287 and get 208.8. Then divide 208.8 by 0.5 and get x=417.6
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How many terms are in the algebraic expression Negative 7 + 12 x 4 minus 5 y 8 + x?
BARSIC [14]

Answer:

Therefore,

There are Four i.e 4 terms in the expression,

-7+12x^{4}-5y^{8}+x

Step-by-step explanation:

Algebraic Expression:

An algebraic expression is a mathematical expression that consists of variables, numbers and operations.

  • Variables with the coefficient is called as Term.
  • Number is also a term.

Here the Expression is

-7+12x^{4}-5y^{8}+x

So,

-7 = One\ Term\\12x^{4}=Second\ Term\\-5y^{8}=Third\ Term\\x=Fourth\ Term

In all there are Four i.e 4 terms in the given expressions.

Therefore,

There are Four i.e 4 terms in the expression,

-7+12x^{4}-5y^{8}+x

5 0
4 years ago
Read 2 more answers
Expand (4x-3y)^4 using pascal's triangle ...?
jenyasd209 [6]
Using row 4: 

<span>coefficients are: 1, 4, 6, 4, 1 </span>

<span>a^4 + a^3b + a^2b^2 + ab^3 + b^4 </span>

<span>Now adding the coefficients: </span>

<span>1a^4 + 4a^3b + 6a^2b^2 + 4ab^3 + 1b^4 </span>

<span>Substitute a and b: </span>

<span>a = 4x </span>
<span>
b = -3y </span>

<span>1(4x)^4 + 4(4x)^3(-3y) + 6(4x)^2(-3y)^2 + 4(4x)(-3y)^3 + 1(-3y)^4 </span>

<span>Now simplify the above: </span>

<span>256x^4 - 768x^3y + 864x^2y^2 - 432xy^3 + 81y^4 </span>
8 0
4 years ago
Two arithmetic means between 3 and 24 are -
defon

The value of two arithmetic means which are inserted between 3 and 24 are 24/9 and 75/9.

<h3>What is arithmetic mean?</h3>

Arithmetic mean is the mean or average which is equal to the ratio of sum of all the group numbers to the total numbers.  

The two arithmetic means between 3 and 24 are has to be inserted.

3, A₂, A₃, 24

All the four numbers are in arithmetic progression. The nth terms of AM can be found using the following formula:

t(n)=a(n-1)d

Here, d is the common difference a is the first terms and n is the total term.  The first term, a=3 and t₄=24. Thus, the common difference is;

t(n)=a(n-1)d\\t(4)=3(4-1)d\\24=3(3)d\\24=9d\\d=\dfrac{24}{9}

The second and 3rd term are:

A₂=3+\dfrac{24}{9}=\dfrac{51}{9}\\ A₃=\dfrac{51}{9}+\dfrac{24}{9}=\dfrac{75}{9}

Thus, the value of two arithmetic means which are inserted between 3 and 24 are 24/9 and 75/9.

Learn more about the arithmetic mean here;

brainly.com/question/14831274

#SPJ1

8 0
3 years ago
If f(x) = 3x^2- 1 and g(x) = 4x + 2, then what is g(f(x))?
katrin2010 [14]

Answer:

g(f(x) = 12x^2-2

Step-by-step explanation:

solution:

given,

f(x)=3x^2-1

g(x)=4x+2

g(f(x)=?

here,

g(f(x) = g(3x^2-1) [put the value of f(x) given]

=4(3x^2-1)+2 [ now put the value of g(x) and in the place of x put 3x^2-1]

=12x^2-4+2 [ by multiplying 4(3x^2-1) ]

= 12x^2-2 ans..

So g(f(x)=12x^2-2

hope its helps , I tried my best to explain there

hope you understand it as i am terrible at explaining like this ...

have a good time(•‿•)

3 0
3 years ago
Help me solve this please!
sergiy2304 [10]

Answer: -1, 0, 1, 2, 3

Step-by-step explanation:

If we say the expression out loud, we say it as "m is greater than -2 but less than or equal to 3."

This is because < or > means less than or greater than. These don't include the given value.

≤ or ≥ means less than or equal to or greater than or equal to. These do include the given value/values.

In this equation, we don't include -2, but we include 3. That's why the included values are -1, 0, 1, 2, 3.

8 0
3 years ago
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