Ask question

Ask question

All categories

2 years ago

11

SEND FIRST AND CORRECT AND GET 5 STARS AND THANKS

2 answers:

Rama09 [41]2 years ago

6 0

-779 should be the answer

Svetlanka [38]2 years ago

4 0

"A" equals -779 hope I helped :)

You might be interested in

The total snowfall in Burke, Virginia, this January was 7 1/4 in. In February, 20% more snow fell than in January.

Elis [28]

I think the answer is 7 2/9

7 0

2 years ago

Read 2 more answers

Share £747 in the ratio 2:7 between Tom and Ben.<br> Tom will get<br> £<br> Ben will get<br> £

kari74 [83]

<em> $tom \: will \: get \:£166 \\ ben \: will \: get \: £581\\ solution \\ let \: the \: ratios \: be \: 2x \: and \: 7x \\ 2x + 7x = 747 \\ or \: 9x = 747 \\ or \: x = \frac{747}{9} \\ x = £83 \\ replacing \: value \\ 2x \\ = 2 \times 83 \\ = 166 \\ 7x \\ = 7 \times 83 \\ = 581 \\ hope \: it \: helps$ </em>

5 0

2 years ago

Which of the values shown are potential roots of f(x) = 3x3 – 13x2 – 3x + 45? Select all that apply.

galina1969 [7]

Answer:

All potential roots are 3,3 and $-\frac{5}{3}$ .

Step-by-step explanation:

Potential roots of the polynomial is all possible roots of f(x).

$f(x)=3x^3-13x^2-3x+45$

Using rational root theorem test. We will find all the possible or potential roots of the polynomial.

p=All the positive/negative factors of 45

q=All the positive/negative factors of 3

$p=\pm 1,\pm 3,\pm 5\pm \pm 9,\pm 15\pm 45$

$q=\pm 1,\pm 3$

All possible roots

$\frac{p}{q}=\pm 1,\pm 3,\pm 5\pm \pm 9,\pm 15\pm 45,\pm \frac{1}{3},\pm \frac{5}{3}$

Now we check each rational root and see which are possible roots for given function.

$f(1)= 3\times 1^3-13\times 1^2-3\times 1+45\Rightarrow 32\neq 0$

$f(-1)= 3\times (-1)^3-13\times (-1)^2-3\times (-1)+45\Rightarrow \neq 32$

$f(-3)= 3\times (-3)^3-13\times (-3)^2-3\times (-3)+45\Rightarrow \neq -144$

$f(3)= 3\times (3)^3-13\times (3)^2-3\times (3)+45\Rightarrow =0\\\\ \therefore x=3\text{ Potential roots of function}$

Similarly, we will check for all value of p/q and we get

$f(-5/3)=0$

Thus, All potential roots are 3,3 and $-\frac{5}{3}$ .

5 0

2 years ago

Read 2 more answers

Mrs. Jackson gives the table below to her students.

krek1111 [17]

M= 20 because the rate of change is -3.

5 0

2 years ago

Read 2 more answers

When rolling two dice, Which probability has the same number of chances as rolling a P(1)?

Harman [31]

Answer:

$\frac{1}{6})$

Step-by-step explanation:

probability= <u>no of possible outcom</u><u>e</u>

total outcome

therefore p(1)=

$\frac{2}{12}$

N. B, a dice has 6faces so 2dice has 12 faces

3 0

2 years ago