Pls help me with this one!! :>

Mathematics

2 answers:

Colt1911 [192]3 years ago

3 0

Answer:

i dont see a picture?

Step-by-step explanation:

Elza [17]3 years ago

3 0

Step-by-step explanation:

the student who has the highest grades in a particular group of students and who gives the valedictory speech at a graduation ceremony compare salutatorian.

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Find the distance bewteen points H(8,4) and k(7,6) to the nearest hundreath

OleMash [197]

Answer:

2.24

Step-by-step explanation:

If you look at the points on the graph, you can see that the distance between them is also the hypotenuse of a right triangle, meaning you can calculate the distance using the pythagorean theorem.

$a^2+b^2=c^2\\1^2+2^2=c^2\\1+4=c^2\\c=\sqrt{5}\\c\approx2.2361$

8 0

3 years ago

Write inequalities to describe the solid left (x < 0 is left) hemisphere of a sphere of radius 4 centered at the origin

Serggg [28]

The equation of the sphere centered at 0, and radius 4 is:

$\displaystyle{ x^2+y^2+z^2=4^2$ ,

note that this equation describes exactly the points of the surface of the square. That is, this is an EMPTY sphere.

The solid sphere, that is the points on the surface and all points in the inside, are given by :

$\displaystyle{ x^2+y^2+z^2 \leq 4^2$

since we want the left part of the solid part, picture 2, we add the condition x<0,

thus "the solid left (x < 0 is left) hemisphere of a sphere of radius 4 centered at the origin" is given by the system of inequalities:

$i) \displaystyle{ x^2+y^2+z^2 \leq 4^2$
$ii)x\ \textless \ 0$

8 0

3 years ago

Read 2 more answers

zhenek [66]

Answer:

Step-by-step explanation:

length = x +x + 2 = 2x + 2

Width = 2+ x

Area of rectangle = length *width

(x +2)(2x + 2) = 110

Use FOIL method

x*2x + x*2 + 2*2x + 2*2 = 110

2x² + 2x + 4x + 4 - 110 = 0 {Combine like terms}

2x² +6x - 106 = 0

a = 2 ; b = 6 ; c = -106

b² - 4ac = 6² - 4*2*(-106)

= 36 + 848

= 884

$\sqrt{b^{2}-4ac}=\sqrt{884}= 29.73$

$x =\dfrac{-b+\sqrt{b^{2}-4ac}}{2a} \ ; \ x==\dfrac{-b-\sqrt{b^{2}-4ac}}{2a}\\\\x = \dfrac{-6+29.73}{2*2} \ ; \ x =\dfrac{-6-29.73}{2*2} \ this \ is \ ignored \ as \ it \ is \ negative\\\\x=\dfrac{23.73}{4};$