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Naddik [55]
4 years ago
15

Alex has a piece of

Mathematics
1 answer:
emmainna [20.7K]4 years ago
8 0

Answer:

He cut of 6 feet of ribbon.

Step-by-step explanation:

45

-39

  6

You might be interested in
An angle measures 42.6° less than the measure of its complementary angle. What is the measure of each angle?
Setler79 [48]

Answer:

Complementary angle 1st = 66.3°

Complementary angle 2nd = 23.7°

Step-by-step explanation:

Assume;

Complementary angle 1st = a

Complementary angle 2nd = a - 42.6°

Sum of complementary angles = 90°

So,

a + a - 42.6 = 90

a = 66.3

Complementary angle 1st = 66.3°

Complementary angle 2nd = 23.7°

3 0
3 years ago
Enter a positive common factor (other than 1) of the fraction's numerator and
Artyom0805 [142]

Answer:

7

Step-by-step explanation:

7 is a common positive factor if 14 and 21. 2:3

5 0
3 years ago
If p=m and n=16 in the equation m/45 = n/p, what is the value of m?
Andrej [43]
M=p=x
x/45=16/x
x^2=720
x=sqrt(720)
sqrt mean root
m= sqrt(720)
6 0
3 years ago
H(t) = -t + 3; Find h(-5)
Anastasy [175]

Answer:

8

Step-by-step explanation:

h(t) = -t + 3;

h(-5)

Let t = -5

h(-5) = - -5 +3

       = 5+3

       = 8

7 0
4 years ago
Read 2 more answers
An ice cream store sells 28 flavors of ice cream. Determine the number of 4 dip sundaes.
katrin [286]

Answer:

20,475\ ways

Step-by-step explanation:

we know that

<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.

To calculate combinations, we will use the formula

C(n,r)=\frac{n!}{r!(n-r)!}

where

n represents the total number of items

r represents the number of items being chosen at a time.

In this problem

n=28\\r=4

substitute

C(28,4)=\frac{28!}{4!(28-4)!}\\\\C(28,4)=\frac{28!}{4!(24)!}

simplify

C(28,4)=\frac{(28)(27)(26)(25)(24!)}{4!(24)!}

C(28,4)=\frac{(28)(27)(26)(25)}{(4)(3)(2)(1)}

C(28,4)=20,475\ ways

5 0
3 years ago
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