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olya-2409 [2.1K]
2 years ago
5

12 ft. 7 ft. what is the Hypotenuse​

Mathematics
1 answer:
melisa1 [442]2 years ago
5 0

Answer:

13.89

Step-by-step explanation:

12² + 7²  = C

144 + 49 = 193

√193 = 13.89

round it if u want

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Among 35 students in a class, 20 of them earned A's on the midterm exam, 13 earned A's on the nal exam, and 12 did not earn A's
enyata [817]

Answer:

The correct answer is "\frac{2}{7}".

Step-by-step explanation:

According to the question,

Number of students,

= 35

A ! mid term A,

n(A) = 20

B : final A,

n(B) = 13

Didn't start,

n(A^c \cap B^c) = 12

Now,

⇒ n(A \cup B)=35-12

                   =23

then,

⇒ n(A \cup B)=20+13-23

                   =10

hence,

The probability will be:

⇒ P(A \cap B)=\frac{10}{35}

⇒                 =\frac{2}{7}

7 0
3 years ago
The average of your first 6 tests is 82. If your test average after your seventh test is an 80.5, what did you score on the seve
mart [117]
So average is  of the first 6 tests is 82   well that means 

(test1 + test2+ test3+ test4 + test5+test6)/6 = 82

so now let do some cross multiplliying 

test1 + test2 + test3 + test 4 + test5 +test6 = 82*6

test1 + test2 + test3 + test 4 + test5 +test6  = 492

now lets see if we can find that 7th test score

(test1 + test2 + test3 + test4 + test5 +test6 + test7)/7 = 80.5

So look we found test1 + test2 + test3 + test4 + test5 +test6 to be 492 so lets substitute. 

(492 + test7 )/7 = 80.5

test7 = (80.5*7)-492 = 71.5 



7 0
3 years ago
To convert a capacity of 8.7 gallons to quarts, which ratio could you multiply by? remember that 1 gallon = 4 quarts.
Papessa [141]
Using the factor label method, you would set up your ratio like so:8.7 gall *  \frac{4 qts}{1 gall}
3 0
3 years ago
Solve for x<br> 14x = 5(2x – 4) – 12
ehidna [41]
The answer is
X = - 8
3 0
3 years ago
Read 2 more answers
Solve the equation.
inysia [295]

The answer is x=-80.

First subtract 4 from both sides.

-6=\frac{x}{8}+4

-6-4=\frac{x}{8}+4-4

-10=\frac{x}{8}

Multiply 8 on both sides to isolate x.

-10·8=\frac{x}{8*8}

-80=x

5 0
3 years ago
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