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2 years ago

Could some one help me

Mathematics

1 answer:

sveta [45]2 years ago

6 0

Answer:

x=6.6 y=12

Step-by-step explanation:

To know this problem, you need to know the Pythagorean theorem, though I think you know this since it seems like you are doing a quiz or something like that. $a^{2}$ + $b^{2}$ = $c^{2}$

<h3>Solving x:</h3>

Plug the numbers in
$8.8^{2}$ + $x^{2}$ = $11^{2}$
77.44+ $x^{2}$ =121
121-77.44=43.56
$x^{2}$ =43.56
$\sqrt{x}$ = $\sqrt{43.56}$
x=6.6

<h3>Solving for y:</h3>

Plug the numbers in
$6.6^{2} +10^{2} = y^{2}$

43.56+100= $y^{2}$
143.56= $y^{2}$
$\sqrt{143.56} =\sqrt{y}$
12=y

This might be too late, but I hope you were able to do well on your thing!

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Can I get some help

Mariulka [41]

Given:

The expression is

$2x^4+2x^3-x^2-x$

The steps are given.

To find:

The mistake in her steps.

Solution:

We have,

$2x^4+2x^3-x^2-x$

The correct steps are shown below.

Step 1: Taking out x as common factor.

$=x(2x^3+2x^2-x-1)$

Step 2: Now, taking out 2x² as common factor from first two terms (first group of terms) and -1 form last two terms (second group of terms) in the parentheses.

$=x(2x^2(x+1)-1(x+1))$

Step 3: Taking out (x+1) as common factor.

$=x(2x^2-1)(x+1)$

She incorrectly factored -1 from the second group of terms.

Therefore, the correct option is B.

5 0

3 years ago

Graph each equation<br> Y=-2|-3X+3|+4<br><br> NEED HELP ASAP!!

HACTEHA [7]

Graph the absolute value by using the vertex and a few selected points

Point One: X= -1, Y= -8

Point Two: X= 0, Y= -2

Point Three: X= 1, Y= 4

Point Four: X= 2, Y= -2

Point Five: X= 3, Y= -8

The graph should look something like a mountain or an upside down V

3 0

4 years ago

Please help me solve this

OlgaM077 [116]

Answer:

645320

Step-by-step explanation:

Given: 6_5_2_

If a multiplication sign is placed between the second and third digit, and an equal sign is placed between the third and fourth digit, then

6_ × 5 = _2_

The passcode contains 6 DIFFERENT digits, so we know the missing numbers cannot be 6, 5, or 2.

So, do a trial and error session of multiplying 5 by numbers it could possibly be (60, 61, 63, 64, 67, 68, 69).

64 × 5 = 320. It is the only equation that is both correct and matches the digits given, so the missing digits are 4, 3, and 0. Barry's passcode is 645320.

4 0

4 years ago

Help pls!<br> simplify<br> -6 x^{2} ÷ 12 - 2(-7)<br><br> a. -17<br> b. 35<br> c. -35<br> d. 11

Mariana [72]

Answer:

Step-by-step explanation:

Given: $\frac{-6^{2}}{12} -2(-7)$