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Illusion [34]
3 years ago
11

HELPPPPPPPPPPPPPPPPPPP!!!!!!!!!!

Mathematics
2 answers:
raketka [301]3 years ago
6 0
Answer is:
x ≥ -18/5

2+4/9x ≥ 4+x
4/9x-x ≥4-2
4/9x-9/9x ≥2
- 5/9x ≥2 multiple by 9
-5x ≥2•9
-5x ≥18
x ≥ -5/18
Anika [276]3 years ago
3 0

Answer:

Step-by-step explanation:

2 + 4x/9 ≥ 4 + x

4x/9  ≥ 2 + x                 - 2 from both sides

4x ≥ 18+ 9x                   x 9 both sides

-18 ≥ 5x                         subtracted 18 and 4x from both sides

-18/5 ≥ x                        divided both sides by 5

    -18/5 is greater than x     thus x is less than -18/5

x  ≤ -18/5   <--------------  Answer is 1    

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Help me please please
Marrrta [24]

Answer:

a.11

b.20

c.44

d.5

e.60

f.12

g.4

h.40

i.900

j.6

Step-by-step explanation:

hope this helps

8 0
2 years ago
“what is the equation of a conic with vertices (-9,3) and (7,3) and foci (-5,3) and (3,3)”
iragen [17]

This is an ellipse.

Equation of an ellipse: \frac{x^2}{a^2}+\frac{y^2}{b^2}=1

Let's find the center point first. We can do this by finding out the midpoint between the vertices or the foci.

(-9+7)/2=-1

Center: (-1,3)

Now we need to find a and b (length along x and length along y).

We know "a". It is the distance between the center and the right or left bound.

a=7-(-1)=8

To find out "b", first see that...

b^2=a^2-(distance from center to foci)^2

foci distance=3-(-1)=4

b^2=8^2-4^2

b^2=64-16

b^2=48

b=4√3

answer: \frac{(x+1)^2}{64}+\frac{(y-3)^2}{48}=1

7 0
3 years ago
Compute (5 2/3)^2-(4 1/3)^2
g100num [7]

Answer:

40/3

Step-by-step explanation: If you have a calculator type in (5 2/3)^2-(4 1/3)^2. To get 40/3. So in short, square (5 2/3)^2 to get 289/9 and square (4 1/3)^2 to get 169/9. Then subtract the two 289/9-169/9 to get 40/3.

8 0
2 years ago
A caterer is preparing meals for a party of 78 guests. If about 1/4 of the guests want steaks, about how many steaks should the
Ann [662]
Answer:
You want to divide 78 by 4, so the answer will be 17.
And to check, 17x4=78, so it is correct.
4 0
3 years ago
What is a value or values that make an equation true
zhannawk [14.2K]
Any value that satisfies the equality.
E.g. 2x + 4x = 10 the value that makes this true is 2

or 

x^2 = 2 The values that would make it true are 4 and -4, since the squared of any number is always a positive.
7 0
3 years ago
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