3 years ago

PLZ ANSWER having a hard time with this one

1 answer:

4 0

No, it is not a function because if you have two 12’s as the y value then the x value must be the same or else it’s not a function

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How many variable terms are in the expression 3x3y +5x2-4y+z+9?numeric value only

natta225 [31]

Answer:

im pretty sure its 5

Step-by-step explanation:

x, y, x, y, z

Hope this helps!

4 0

3 years ago

0.75(4x + 2) = 5 - (x + 1.5)<br> X =

djverab [1.8K]

Answer:

The answer is x=1/2 or x=0.5

7 0

2 years ago

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If a 12-student class averaged 90 on a test, and a 20-student class averaged 80 on the test, then all 32 students averaged

Alexxx [7]

Let the marks of the students in class 1 be

$m_1, m_2, ....., m_1_2$

the average of these 12 marks is 90, so

$\frac{m_1+ m_2+ .....+ m_1_2}{12}=90$

which means

$m_1+ m_2+ .....+ m_1_2=90*12=1080$

similarly, let $n_1, n_2, ....., n_2_0$ be the marks of the students in the second class,

so $\frac{n_1+ n_2+ ..... n_2_0}{20}=80$

which means $n_1+ n_2+ ..... n_2_0=80*20=1600$

The 32 students averaged:

$\frac{(m_1+ m_2+ .....+ m_1_2)+(n_1+ n_2+ ..... n_2_0)}{12+20}= \frac{1080+1600}{32}= \frac{2680}{32}= 83.75$

5 0

3 years ago

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Choose the simplest form of this fraction

Shkiper50 [21]

The correct answer is 2 1/7

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3 years ago

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For the equation, complete the solution. 7x + y = −18

Alex777 [14]

Answer: