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Troyanec [42]
4 years ago
13

What is the product of -4(-15)? *​

Mathematics
2 answers:
Klio2033 [76]4 years ago
4 0

Answer: 60

Step-by-step explanation: -4x-15=60

Alex17521 [72]4 years ago
4 0

Answer:

60

Step-by-step explanation:

negative times negative is equals to positive

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Geet sells televisions. He earns a fixed amount for each television and an additional $25 if the buyer gets an extended warranty
adoni [48]

Answer:

50 dollars.

Step-by-step explanation:

19 x 25= 475

1,425 - 475= 950

950 divided by 19 is 50.

4 0
3 years ago
Read 2 more answers
Prove that if b is a square matrix then b+b^t is symmetric
WARRIOR [948]
A matrix \mathbf X is symmetric if \mathbf X=\mathbf X^\top. We have

(\mathbf B+\mathbf B^\top)^\top=\mathbf B^\top+(\mathbf B^\top)^\top=\mathbf B^\top+\mathbf B=\mathbf B+\mathbf B^\top

and so \mathbf B+\mathbf B^\top is indeed symmetric.
6 0
4 years ago
What is the probability that in a class of 20 students, 2 of them will have the same birthday?
earnstyle [38]
There would be a 10% chance that they would have the same birthday
8 0
4 years ago
The radii of two right circular cylinders are in the ratio 3 : 4 and their heights are in the ratio 1 : 2. Calculate the ratio o
bezimeni [28]

Answer:

18.852:50.272

Step-by-step explanation:

Step one:

given

The radii of two right circular cylinders are in the ratio 3 : 4

r1= 3

r2= 4

Their heights are in the ratio 1 : 2

h1= 1

h2= 2

Step two:

The expression for the curve surface area is

CSA= 2πrh

CAS1=  2πr1h1

CAS1=  2*3.142*3*1

CAS1=  18.852

CAS2=  2πr2h2

CAS2=  2*3.142*4*2

CAS1=  50.272

The ratio of their curved surface areas

=18.852:50.272

3 0
3 years ago
The weight of a full steel bead tire is approximately 800 grams, while a lighter wheel weighs only 700 grams. What is the weight
Galina-37 [17]

The weight of the full steel bead tire in pounds is 1.76 pounds

The weight of the lighter steel bead tire in pounds is 1.54 pounds.

<h3>What are the weights of the tires?</h3>

Division is the process of dividing a number into equal parts using another number. The sign used to denote division is ÷.

The weight of the full steel bead tire in pounds = 800 / 453.592 = 1.76

The weight of the lighter steel bead tire in pounds = 700 / 453.592 = 1.54

To learn more about division, please check: brainly.com/question/13281206

#SPJ1

5 0
2 years ago
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