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zheka24 [161]
3 years ago
8

What's the answer nsbdbbdsbzhbcbxbxbdvchxf

Mathematics
2 answers:
xeze [42]3 years ago
8 0
1. 60 students

2. 38% of students 

3. 50 students 

4. 18% of students

5. 79200 ft = 15 mi

6. 3600 sec = 1 hr
kifflom [539]3 years ago
7 0
There are 79,200 feet in 15 miles.
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How do I solve 6 x 107 using a property
Anastasy [175]
Use distributivity to split the multiplication
6*107
=6(100+7)
=600+42
=642
4 0
3 years ago
Solve for x: 5x+3y=15
Gnoma [55]

Answer:

y = (-5/3)x - 5

Step-by-step explanation:

5x + 3y = =15

slope intercept for is: y = mx + b

3y = -5x=15

divide both sides by 3:

y = (-5/3)x - 5

8 0
3 years ago
Analyze tables use the table that shows the percents of blood types of 145 donors during a recent blood drive
Alenkinab [10]

Answer:

a. 16

b. 80

c. Blood type AB

Step-by-step explanation:

Given:

O = 45%

A = 40%

B = 11%

AB = 4%

Total number of donors = 145

a. No. of donors that had type B blood = \frac{11}{100}*145 = \frac{1,595}{100} = 15.95

Type B blood donors ≈ 16

b. No. of blood donors without blood type O = \frac{40 + 11 + 4}{100}*145 = \frac{55}{100}*145 = \frac{7,975}{100} = 79.75

Those without blood type O ≈ 80

c. Find the number of people that had type AB:

Type AB = \frac{4}{100}*145 = 5.8 ≈ 6. This is less than 10 donors.

Therefore, blood type AB had less than 10 donors.

6 0
3 years ago
If the null space of A4×5 is exactly a two-dimensional plane, answer the following:
Hatshy [7]

Answer:

I.

A is a 4 x 5 matrix => A: U -> V, dim U = 5, dim V = 4

Null space is exactly two dimensional plane

dim null (A) = 2

II.

Rank A = dim U - dim Null A = 5 - 2 = 3

III.

Number of linearly Independent columns of A is the rank of A = 3

IV.

Yes, The system Ax = b has no solution sometimes as range of A \neq V

V.

Yes,Sometimes Ax = b has a unique solution

VI.

Yes, sometimes Ax = b has infinitely many solutions

8 0
3 years ago
Please help<br> 4(x+8)+2=1/2(8x+60)
user100 [1]

Answer:

This is a contradiction

7 0
2 years ago
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