F(x)=x^2 -5x+1<br><br><br> f(x+h)-f(x)/h =

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

What is the sum of the degrees of the interior angles of a 19-gon?

emmasim [6.3K]

Sum of interior angles formula = (n-2) x 180
where n = number of sides

so,
( 19-2 ) x 180
= 17 x 180
= 3060

ans : A

hope it helps :)

7 0

3 years ago

Please help! Probability!!

Brums [2.3K]

Answer:

E

Step-by-step explanation:

→ Find what numbers he can land

3 , 4 , 5 , 6

→ Count how numbers there are

4

→ Put the number on the appropriate position on the number line

E

3 0

2 years ago

Which expressions are equivalent to the expression 4a – 6b + 3c? a + 3(a − 2b + 3c) 4a + 3(2b + c) 2(2a − 3b + c) + c 2(2a − 3b)

Dvinal [7]

It is D because (2)(2)=4 and (2)(3)= 6

6 0

3 years ago

Read 2 more answers

The diameter of a truck tire is 22inches Approximately how fat will the truck have traveled after 5 rotations of these tires

kvasek [131]

Answer:

The truck have travelled 345.5 inches after 5 rotations of the tires

Step-by-step explanation:

Given:

Diameter of the tyre= 22 inches

Number of rotations= 5

To find:

Distance travelled after 5 rotations=?

Solution:

We have given with diameter,

So let radius be r

r= $\frac{diameter}{2}$

$r=\frac{22}{2}$

r=11 inches

The distance covered by one rotation is given by circumference

Circumference = $2\pi r$

Substituting the values, we get

Circumference = $2\times\pi\times r$

Circumference = $2\times\pi\times 11$

Circumference = $2\times\3.14\times 11$

Circumference = $6.28\times 11$

Circumference = 69.11

Now for 5 rotation,

Distance travelled = $5\times(\text{circumference value})$

Distance travelled = $5\times(69.11)$

The truck will travel 345.5 inches.

6 0

2 years ago

F(x)=x^2 -5x+1 f(x+h)-f(x)/h =