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3 years ago

Listen, read the question, and choose the option with the correct answer.

Mathematics

2 answers:

jonny [76]3 years ago

6 0

Answer:

the table

Step-by-step explanation:

i know spanish

velikii [3]3 years ago

3 0

Answer:

The napkins

Step-by-step explanation:

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If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?

Fittoniya [83]

Step 1: Find the value of one variable in terms of the other.

$a+3b=7\\a=7-3b$

Step 2: Substitute the value you just found for this variable in the other equation.

$3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}$

Step 3: Use your new value for the second variable to find the first.

$a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}$

Now that we know the values for a and b we can find the value of 4a+b.

$4a+b\\4(3\frac{5}{11})+1\frac{2}{11}\\12+\frac{20}{11}+1\frac{2}{11}\\\\12+1\frac{9}{11}+1\frac{2}{11}\\\\\boxed{15}$

6 0

3 years ago

How many zeros in x^4 + 3x2 + 12

barxatty [35]

Answer:

We know that ,

Number of zeroes in a polynomial = degree of the polynomial

( degree of polynomial = the highest power in the polynomial )

therefore ,

$\bold\blue{number \:of \:zeroes \:of\: the \:given} \\\bold\blue{polynomial\: = \:4}$

hope helpful~

3 0

2 years ago

Solve: 8+ x/2= 1/4 (x-4)-1

alexandr402 [8]

|3x+1|=4 : x=−
5
3 or x=1
Pasos
|3x+1|=4
Aplicar las propiedades de los valores absolutos: Pi |u| = a, a>0 entonces u = a or u = −a
3x+1=−4 or 3x+1=4
Mostrar pasos
3x+1=−4 or 3x+1=4

6 0

3 years ago

Please help me with this question!!

kramer

Answer:acute

Step-by-step explanation:

4 0

3 years ago

What is the slope of the line that is parallel to the line shown?

ELEN [110]

Hey there! :D

All parallel lines have the same slope. They would need to, otherwise, they would intersect or come together at an angle eventually.

So, let's find the slope.

I'm going to use rise over run. (Remember, when moving to the left, you make the number negative.

rise=1 run= -3

-1/3 <== the slope

"C" is the correct answer.

I hope this helps!
~kaikers

4 0

3 years ago