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2 years ago

Answer and explain? I've been getting a lot of these questions wrong lately lol.

Mathematics

2 answers:

umka2103 [35]2 years ago

6 0

Answer:

the answer is 31!

Step-by-step explanation:

So if you do 12 x 3 that is 36 and 36-5 is 31

so then you see if it works

31 +5 = 36

36/3 = 12

Mandarinka [93]2 years ago

5 0

Answer:

number: 31

Let the number be x

This number is added by 5, so: x + 5

Then we divide it total by 3, so: (x + 5)/3

And this equals to 12, (x + 5)/3 = 12

Solve for unknown number:

(x + 5)/3 = 12

x + 5 = 36

x = 36 - 5

x = 31

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Question 7 of 25 Which of the binomials below is a factor of this trinomial? x - 6x-16 O A. X-1 O B. X-8 OC. X-16 O D. x-2

kvasek [131]

Answer:

(x-8) is the factor.

Step-by-step explanation:

The given trinomial is $x^{2}-6x-16$ .

We need to find the factor of this trinomial.

$x^{2}-6x-16=x^2-8x+2x-16\\\\=x(x-8)+2(x-8)\\\\=(x+2)(x-8)$

The factors of $x^{2}-6x-16$ is (x-2) and (x-8).

So, the factor of $x^{2}-6x-16$ is (x-8). Hence, the correct option is (B).

5 0

2 years ago

What are the numbers that have an absolute value of 2 and 1 half

rewona [7]

Absolute value of |2 1/2| is 2 1/2

4 0

3 years ago

Read 2 more answers

A triangle has sides with lengths of 10 cm 6 cm and 8cm is it a right triangle

Artyom0805 [142]

Answer:

Yes!

Step-by-step explanation:

6: 8: 10, makes a ratio of 3: 4: 5, making a right triangle

6 0

2 years ago

Please help :) (Filler text incoming) aaaaaaaaaaaaaaaaaaaaaaaa

jekas [21]

Hello!

First you divide 1/3 and 6/7

1/3 / 6/7 = 7/18

Now you make the two fractions have the same denominator

5/6 = 15/18

Now add

7/18 + 15/18 = 22/18

Simplify

11 / 9

The answer is 11 / 9

Hope this helps!

8 0

3 years ago

Read 2 more answers

Use the quadratic formula to solve for x.

ryzh [129]

Answer:

The answer is

$x = \frac{ - 9 - \sqrt{41} }{10} \: \: \: , \: \: \: \: \: \frac{ - 9 + \sqrt{41} }{10} \\$

Step-by-step explanation:

5x² + 9x + 2 = 0

Using the quadratic formula that's

$x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a} \\$

From the question

a = 5 , b = 9 , c = 2

We have

$x = \frac{ - 9 \pm \sqrt{ {9}^{2} - 4(5)(2) } }{2(5)} \\ = \frac{ - 9 \pm \sqrt{81 -40 } }{10} \\ = \frac{ - 9 \pm \sqrt{41} }{10} \: \: \: \: \: \: \: \: \: \:$

We have the final answer as

$x = \frac{ - 9 - \sqrt{41} }{10} \: \: \: , \: \: \: \: \: \frac{ - 9 + \sqrt{41} }{10} \\$

Hope this helps you

8 0

2 years ago

Answer and explain? I've been getting a lot of these questions wrong lately lol. ​

Answer and explain? I've been getting a lot of these questions wrong lately lol.