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jolli1 [7]
4 years ago
15

Help please? What is the value of 4x + 3y - z, when x = 2, y = -3 and z = 1 *

Mathematics
1 answer:
Stolb23 [73]4 years ago
7 0

Answer:

-2

Step-by-step explanation:

When you fill it in you get 4(2)+3(-3)-1 then multiply and add

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How to find the missing angle of a triangle using trigonometry
Arte-miy333 [17]

Answer:

By using the SOH CAH TOA rule

Step-by-step explanation:

By using this rule you can find the missing length or an angle if 2 parts out of 3 are given in the question, if the Opposite and Hypotenuse are given you use Sine to figure out the angle, and etc for all of the other ones. More information can be found online! Hope this helps!

5 0
2 years ago
Written as a simplified polynomial in standard form, what is
wolverine [178]

Answer:

\left(x-10\right)-\left(2x-5\right)^2=-4x^2+21x-35

Step-by-step explanation:

As we have to subtract \left(2x\:-\:5\right)^2 from \left(x-10\right)

so

\left(x-10\right)-\left(2x\:-\:5\right)^2

solving and simplifying the polynomial in standard form

\left(x-10\right)-\left(2x-5\right)^2

\mathrm{Remove\:parentheses}:\quad \left(a\right)=a

=x-10-\left(2x-5\right)^2

=x-10-\left(4x^2-20x+25\right)      ∵ \left(2x\:-\:5\right)^2=\:4x^2-20x+25

=x-10-4x^2+20x-25

=-4x^2+21x-35

We know that standard form means that the terms of the expression are ordered from biggest exponent to lowest exponent.

Thus, a simplified polynomial in standard form is:

\left(x-10\right)-\left(2x-5\right)^2=-4x^2+21x-35

3 0
3 years ago
Pls answer what you can and I will give brainliest.
belka [17]

Answer:

I believe the top one is true! I'm sorry I couldn't answer them all :c

Step-by-step explanation:

5 0
3 years ago
A system of two linear equations has an infinite number of solutions. How is this possible?
Rudiy27
A<span> system of linear equations</span><span> means two or more linear equations.
</span>A system of two linear equations has an infinite number of solutions is the rarest case and it only happens when both the lines are same.
For example,
y = 3x+1 and 4y = 12x +8
These lines will have infinite number of solutions.
Hence,
The best answer is : 
<span>B) The two equations are the same line.</span>
5 0
3 years ago
La sona
Neporo4naja [7]

Answer:

hola

Step-by-step explanation:

como estas

7 0
3 years ago
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