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3 years ago

True or false Is 65 Square root between 6 and 7

Mathematics

2 answers:

notka56 [123]3 years ago

4 0

False because the square root for 65 is 8.06225...

Marat540 [252]3 years ago

3 0

The answer is false.

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What is the area of ruth's mural?

pentagon [3]

Answer:

Step-by-step explanation:

Comment

The shape consists of a rectangle on the bottom and a trapezoid on the top.

Rectangle

A rectangle has a very simple Area formula. It is Area = L*W. In this case the L = 14 m and is horizontal. The width is at right angles to the length and is marked as 3.

Area = L * w

L = 14

w = 3

Area = 14 * 3 = 42 m^2

Trapezoid

The trapezoid is a bit more complicated and some things have to be found. First of all b1 is the first base of the trapezoid. It is parallel to and equal to the Length of the rectangle. b2 is marked 10 meters. The height is just a bit more complicated. The total height of the figure is 8 m. You can't count the 3 m of the rectangle as part of the height because b1 comes only to the top of the rectangle. The height is 8 - 3 = 5

Area = 1/2(b1 + b2)*h/2

b1 = 14

b2 = 10

h = 8 - 3 = 5

Area = 1/2 ( 14 + 10) * 5 / 2

Area = 1/2 (24)*5

Area = 12 * 5

Area = 60 m^2

Total Area 102 m^2

8 0

1 year ago

which of the following could be represented by -8? a dropof 8 meters, 8 T-shirt, sea level in 8 places of the world, 8 c above z

Liula [17]

A drop of 8 meters can be represented as -8

3 0

2 years ago

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

jeka94

by Quadratic formula , $x^2 + 20 = 2x$ , values of x are $x = 1 \pm (1)i\sqrt{19}}$ . None of mentioned options are correct according to question!

Step-by-step explanation:

Here we have , expression x2 + 20 = 2x or , $x^2 + 20 = 2x$ .

We know that Quadratic formula is :

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

$x^2 + 20 = 2x$

⇒ $x^2-2x+20=0$

$a=1\\b=-2\\c=20$

Putting this value in equation $x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}$ :

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

⇒ $x = \frac{-(-2) \pm \sqrt{(-2)^{2}-4(1)(20)}}{2(1)}$

⇒ $x = \frac{2 \pm \sqrt{4-80}}{2}$

⇒ $x = (\frac{2 \pm 2i\sqrt{19}}{2})$

⇒ $x = 1 \pm (1)i\sqrt{19}}$

Therefore , by Quadratic formula , $x^2 + 20 = 2x$ , values of x are $x = 1 \pm (1)i\sqrt{19}}$ . None of mentioned options are correct according to question!

7 0

2 years ago

What is the answer to this? <img src="https://tex.z-dn.net/?f=%5Cfrac%7B-3%28x-10%29%7D%7B4%7D%2B2%3D11" id="TexFormula1

Mila [183]

Step-by-step explanation:

=== [ -3(x-10)/4] + 2 = 11

==> [( -3x + 30 + 8)/4 = 11

==> -3x = 44 - 38

==> -3x = 6

==> -x = 6/3

==> x = -2

7 0

2 years ago

Read 2 more answers

141.3 rounded to the nearest tenth

maksim [4K]

141.3 is the nearest tenth. 0.3 is in the tenths place.

5 0

2 years ago