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antoniya [11.8K]
3 years ago
9

A(n) ______ is a letter or symbol that represents some unknown value.

Mathematics
1 answer:
Nuetrik [128]3 years ago
4 0
The answer is "variable"

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Solve photo question, please. Mathematics.
skelet666 [1.2K]
Slope point form:
We need the slope "m" and a point (x₀,y₀)
y-y₀=m(x-x₀)


1)
we calculate the slope "m".
Given two points:
(x₁,y₁)
(x₂,y₂) 
the slope "m" is:
m=(y₂-y₁) / (x₂-x₁)

In this case:
(4,10)
(6,11)
m=(11-10) / (6-4)=1/2

Now, we calculate the solpe point form.
(4,10)
m=1/2

y-y₀=m(x-x₀)
y-10=(1/2)(x-4)

we make the standard form
y-10=x/2 - 2

Lowest common multiple=2

2y-20=x-4
-x+2y=-4+20
-x+2y=16

Answer:  -x+2y=16


3 0
4 years ago
What is the probability of choosing a face card from a deck of playing cards?​
Vedmedyk [2.9K]

Answer:

3/13.

Step-by-step explanation:

There are 12 face cards: 3 of each of the 4 suits.

Since there are 52 cards in one deck, 12/52 = 3/13.

6 0
3 years ago
Read 2 more answers
What is (f *g)(x)?<br> f(x) = x^4 - 9<br> g(x)= x^3 +9<br><br> (f *g)(x) = ??
dybincka [34]

Use F.O.I.L

X^7+9x^4-9x^3-81

5 0
3 years ago
Mattie’s house consist of two stories and an attic.the first floor is 8 5/6 feet tall the second floor is 7 1/2 feet tall and th
Trava [24]

Answer:

The attic is  

7

feet tall

Step-by-step explanation:

a=73/3-53/6-17/2

to check Ur work: 53/6+17/2+7

hope u got ur answer

8 0
3 years ago
Read 2 more answers
the water level in a lake was monitored and was noted to have changed −2 1/3 inches in one year. The next year it was noted to h
Ket [755]
-3 1/2

just add the fractions


Mark brainliest please
5 0
3 years ago
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