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Katarina [22]
4 years ago
12

How many four-digit numbers can you form from the numbers 1, 2, 3, 4, 5, 6, 7, 8, and 9 (a) if you use each digit only once? (b)

if you can repeat each digit?
Mathematics
1 answer:
Rudik [331]4 years ago
4 0

Answer:

A. 2

Step-by-step explanation:

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A culinary club earns $1350 from a dinner service. They sold 35 adult meals and 58 student meals. An adult meal costs $12 more t
liq [111]
The adult meal is $38.57 and the student meal is $26.27. You can try it out on a calculator, all you have to do is divide $1350 by 35 and then subtract your answer by 12!

7 0
4 years ago
PLZZ HELP ASAP !!!!!!!!
postnew [5]

Answer:

Pretty sure it's negative 3, cause then X would become -3X. Then when you would add 3X to both sides, it would cancel out both of the -3X then you would be left with 5 = 7, which we all know is not right.

8 0
3 years ago
2 numbers sum is 7 product is -18
Naily [24]
X+y=7
x•y=-18

x+y=7
x=7-y

x•y=-18
(7-y)•y=-18
7y-y^2=-18
-y^2+7y+18=0
Y^2-7y-18=0
(y-9)(y+2)=0
y is either 9 or -2

x+y=7
x=7-y
X=7-9
X=-2

X•y=-18
9•(-2)=-18
-18=-18

There you go, y is 9 and x is -2

3 0
3 years ago
SSS is a special case of what?
spayn [35]

Answer:

SSS triangles = Congruent triangles,

Step-by-step explanation:

Triangles that have same side lines (SSS) is congruent.

6 0
3 years ago
player B's longest homerun justin is 500 feet there are 5,280 feet in one mile how many homeruns would play Abby need to hit at
pshichka [43]
Ok so what you can do is take 5,280 /500feet=10.56
So you will round it to the nearest number. That would be 11.So She would have to run 11 home runs to meat a mile. <span />
3 0
3 years ago
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