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4 years ago

Order of operations for (6+25-7)÷6

Mathematics

2 answers:

Lorico [155]4 years ago

8 0

You do parentheses first and as long as it's just adding and subtracting you work from left to right.

6+25=31, then 31-7=24, then 24/6=4

So your answer is 4.

Pie4 years ago

7 0

the answer is 4

because: 6 + 25 = 31 - 7 = 24 ÷ 6 = 4

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Keith_Richards [23]

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3 years ago

Tell me the answer please. Give me a short answer and a step-by-step explanation.

Lelu [443]

Answer:

A) 100 + 5x = y

10 + 20x = y

Step-by-step explanation:

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4 years ago

Triangle ABC is similar to triangle DEF . The length of AC is 10 cm. The length of BC is 15 cm. The length of DF is 6 cm.

SVETLANKA909090 [29]

Answer:

9 cm

Step-by-step explanation:

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5 0

3 years ago

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jasenka [17]

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3 years ago

Read 2 more answers

Jamison graphs the function ƒ(x) = x4 − x3 − 19x2 − x − 20 and sees two zeros: −4 and 5. Since this is a polynomial of degree 4

Art [367]

We are given polynomial function f(x)= $x^4-x^3-19x^2-x-20$

We are given two zeros -4 and 5.

Therefore, x=-4 and x=5 is given.

So, the two factors of the polynomial will be (x+4)(x-5).

Let us write some steps to factor the given polynomial.

Let us take above factor (x+4) first.

On factoring (x+4) we get factors

$x^4-x^3-19x^2-x-20=\left(x+4\right)\left(x^3-5x^2+x-5\right)$

$\mathrm{:Let \ us \ factor}\:x^3-5x^2+x-5 \ now.$

Grouping

$=\left(x^3-5x^2\right)+\left(x-5\right)$

Factoring out gcf from each group, we get

$=x^2\left(x-5\right)+\left(x-5\right)$

$=\left(x-5\right)\left(x^2+1\right)$

So, the final factored form of given polynomial will be

$x^4-x^3-19x^2-x-20=\left(x+4\right)\left(x-5\right)\left(x^2+1\right)$

For first to factors (x+4) and (x-5) we have given roots: -4 and 5.

Let us find the root of third factor we got.

$x^2+1=0$

Subtracting both sides by 1.

x^2 = - 1.

On taking square root on both sides, we get a square root(-1)

$x=\sqrt{-1}=$ + i and -i.

Those are imaginary solutions.

Therefore, correct option is B) No, there are two imaginary solutions.

5 0

4 years ago