maria has type b blood. she can safely receive blood transfusions from people with blood types o and b. what is the probability that a randomly chosen person from the united states can donate blood to maria?

Answer:4x+11

Step-by-step explanation:

The parenthesis are useless so you just combine like terms

Answer:

x = 1, y = -4, z = -5

Step-by-step explanation:

Solve the following system:

{x = -4 z - 19 | (equation 1)

{y = z + 5 x - 4 | (equation 2)

{-z - 5 y = 25 | (equation 3)

Express the system in standard form:

{x + 0 y + 4 z = -19 | (equation 1)

{-(5 x) + y - z = -4 | (equation 2)

{0 x - 5 y - z = 25 | (equation 3)

Swap equation 1 with equation 2:

{-(5 x) + y - z = -4 | (equation 1)

{x + 0 y + 4 z = -19 | (equation 2)

{0 x - 5 y - z = 25 | (equation 3)

Add 1/5 × (equation 1) to equation 2:

{-(5 x) + y - z = -4 | (equation 1)

{0 x + y/5 + (19 z)/5 = -99/5 | (equation 2)

{0 x - 5 y - z = 25 | (equation 3)

Multiply equation 2 by 5:

{-(5 x) + y - z = -4 | (equation 1)

{0 x + y + 19 z = -99 | (equation 2)

{0 x - 5 y - z = 25 | (equation 3)

Swap equation 2 with equation 3:

{-(5 x) + y - z = -4 | (equation 1)

{0 x - 5 y - z = 25 | (equation 2)

{0 x + y + 19 z = -99 | (equation 3)

Add 1/5 × (equation 2) to equation 3:

{-(5 x) + y - z = -4 | (equation 1)

{0 x - 5 y - z = 25 | (equation 2)

{0 x + 0 y + (94 z)/5 = -94 | (equation 3)

Multiply equation 3 by 5/94:

{-(5 x) + y - z = -4 | (equation 1)

{0 x - 5 y - z = 25 | (equation 2)

{0 x + 0 y + z = -5 | (equation 3)

Add equation 3 to equation 2:

{-(5 x) + y - z = -4 | (equation 1)

{0 x - 5 y + 0 z = 20 | (equation 2)

{0 x + 0 y + z = -5 | (equation 3)

Divide equation 2 by -5:

{-(5 x) + y - z = -4 | (equation 1)

{0 x + y + 0 z = -4 | (equation 2)

{0 x + 0 y + z = -5 | (equation 3)

Subtract equation 2 from equation 1:

{-(5 x) + 0 y - z = 0 | (equation 1)

{0 x + y + 0 z = -4 | (equation 2)

{0 x + 0 y + z = -5 | (equation 3)

Add equation 3 to equation 1:

{-(5 x) + 0 y + 0 z = -5 | (equation 1)

{0 x + y + 0 z = -4 | (equation 2)

{0 x + 0 y + z = -5 | (equation 3)

Divide equation 1 by -5:

{x + 0 y + 0 z = 1 | (equation 1)

{0 x + y + 0 z = -4 | (equation 2)

{0 x + 0 y + z = -5 | (equation 3)

Collect results:

Answer: {x = 1, y = -4, z = -5

Answer:

A = $1,650.24

Step-by-step explanation:

A = P(1 + r/n)^nt

Where

A = future value

P = present value = $1,600

r = interest rate = 3.1% = 0.031

n = number of periods = 4

t = time = 1 year

A = P(1 + r/n)^nt

= 1,600( 1 + 0.031 / 4)^4*1

= 1600( 1 + 0.00775)^4

= 1600(1.00775)^4

= 1600(1.0314)

= 1,650.24

A = $1,650.24

Answer:

1.37

Step-by-step explanation:

hope this can help u

LHS :-

Answer: TRUE

SUIIIIIIIII

The statement that "subset h of a vector space v is a subspace of v if the zero vector is in h" is true.

A subspace is a vector space that is also encompassed within another vector space.

So, while each subspace is a vector space in its own right, it is also defined with respect to another (bigger) vector space.

Three components must be demonstrated to prove that a subset is a subspace:

Additionally, demonstrate that it is closed.

Show that it is closed when scalar multiplication is used.

Show that vector 0 is a part of the subset.

As it is stated in the question;

h represents a subset of the vector space v.

The zero vector is contained in h.

This implies that h must be in the v subspace.

Hence, the statement that "subset h of a vector space v is a subspace of v if the zero vector is in h" is true.

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Answer:

6? i am soooo confused

Step-by-step explanation:

Step-by-step explanation:

Start by listing the factors for both of the numbers

13 (it's a prime number)

1, 13

---------------------------------------------------------------------------

26

1, 26

2, 13

----------------------------------------------------------------------------

Both of the numbers have 2 common factors: 1 and 13

Since 13 is greater than 1, 13 would the the GCF(greatest common factor)

I hope this helps!!!

Answer:

B=28

Step-by-step explanation:

The probability that a customer ordering a small, given that he or she ordered a hot drink, is 0.066 or 6.66%

It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

Total number of small = 5

Total number of hot = 5+48+22 = 75

Probability = 5/75 = 0.066 or 6.66%

Thus, the probability that a customer ordered a small given that he or she ordered a hot drink is 0.066 or 6.66%

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Answer: 0.07

Step-by-step explanation:

The t-value using the sample mean, sample standard deviation, sample size and the hypothesized mean of 40 pounds.

The calculated t-value is greater than the critical t-value, we would reject the null hypothesis in favor of the alternative hypothesis, concluding that the mean weight of blue catfish in the reservoir is indeed greater than 40 pounds.

To test the claim that the mean weight of blue catfish in the John H. Kerr Reservoir is greater than 40 pounds, we can set up the null and alternative hypotheses as follows:

Null Hypothesis (H0):

The mean weight of blue catfish in the John H. Kerr Reservoir is 40 pounds or less.

Alternative Hypothesis (Ha):

The mean weight of blue catfish in the John H. Kerr Reservoir is greater than 40 pounds.

In mathematical notation:

H0: μ ≤ 40

Ha: μ > 40

Here, μ represents the population mean weight of blue catfish in the reservoir.

By assuming that the average weight of blue catfish in the reservoir is not significantly different from 40 pounds or less, we set up the null hypothesis.

The alternative hypothesis suggests that the mean weight is greater than 40 pounds.

To test these hypotheses, we can perform a one-sample t-test on a sample of blue catfish weights collected from the reservoir.

We can then compare the calculated t-value with the critical t-value at a significance level of 0.05.

Conversely, if the calculated t-value is not greater than the critical t-value, we would fail to reject the null hypothesis and would not have sufficient evidence to conclude that the mean weight is greater than 40 pounds.

It's important to note that conducting the actual statistical analysis requires the collection of a representative sample of blue catfish weights from the John H. Kerr Reservoir and performing the necessary calculations using appropriate statistical software or tools.

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Answer:

60

Step-by-step explanation:

If we assume that the line is 180 degrees, we can subtract 180 and 120, to get 60. So f is 60.

Answer:

Step-by-step explanation:

sinC = 12/13

cosA = 12/13

Answer:Scale factor is 10 , the second part is 50

Step-by-step explanation:

Answer:

d.75%

Step-by-step explanation:

15marbles out of 20 are not yellow

Answer:

The answer for the first equation is,

X = 6, -4

The answer for second equation is,

X = 9,2

a.) X^2 - 2x – 24 = 0

x^2-6x+4x-24=0

this is expressing negative 2x as the sum of two terms which are negative 6x and positive 4x

x(x-6)+4(x-6)=0

(x+4)(x-6)=0

(x+4)=0. so x=-4

(x-6)=0 so x=6

b.) x^2 - 11x + 18 =0

Move all terms that don't contain y to the right side and solve.

y = 3 − 2x

Answer:

Y= 2x - 3

Step-by-step explanation:

Answer:30 will be 2 counselors

and 45 will have 3 counselors

Step-by-step explanation:

it adding by 15

Answer:

42

Step-by-step explanation:

the ratio 2:4 can be reduced to 1:2,

where the number of girls corresponds to the 1 and the number of boys corresponds to the 2.

If there are 14 girls, then there must be 28 boys (14 x 2 = 28).

Now to get the total number we need to add the total number of boys and girls together.

So 14 + 28 = 42

Hope it helps :)

Answer:

32

Step-by-step explanation:

14 + 28 = 32

2 x 7 = 14

4 x 7 = 28

The length of the line segment joining the points (-3, 0, -3) and (0, 3, 0) is approximately 5.20 units.

To find the length of the line segment, we can use the distance formula in three-dimensional space. The formula is:

d = √((x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2)

Where (x1, y1, z1) and (x2, y2, z2) are the coordinates of the two points.

In this case, we have:

(x1, y1, z1) = (-3, 0, -3)

(x2, y2, z2) = (0, 3, 0)

Plugging the values into the formula, we get:

d = √((0 - (-3))^2 + (3 - 0)^2 + (0 - (-3))^2)

 = √(3^2 + 3^2 + 3^2)

 = √(9 + 9 + 9)

 = √27

 ≈ 5.20

The length of the line segment joining the points (-3, 0, -3) and (0, 3, 0) is approximately 5.20 units.

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Answer:

The answer is 3

Step-by-step explanation:

1/4(16 + 4)-2 = 3

Hope this helped ya

Answer:

1/4(16+4)-2

1/4(20)-2

5-2

3

Step-by-step explanation:

Answer:

y = -3/4 -1

Step-by-step explanation:

The slope will be a negative recipricol of the original line

Edit : Grammar

Answer:

  c = -1/2

Step-by-step explanation:

Put the known values in the equation and solve for the unknown.

  k = cd² +e

  3 = c(2²) +5

  -2 = 4c . . . . . . . subtract 5

  -1/2 = c . . . . . . divide by 4

Answer: It's A

Step-by-step explanation:

Answer:

1.5

Step-by-step explanation:

Answer:

Improper Fraction: \(\frac{10}{6}\)

Proper Fraction: \(1\frac{4}{6}\)

Simplified Proper Fraction: \(1\frac{2}{3}\)

Step-by-step explanation:

\(\frac{5}{6} + \frac{2}{3}\) Is our equation... first we must find a common denominator! Let's take a look...

6: 1, 6, 12

3: 1, 3, 6

We see that both numbers get to 6 so we use that as our common denominator. Now we plug that in...

\(\frac{5*1}{6*1} +\frac{2*2}{3*2}\)

We get...

\(\frac{5}{6} +\frac{4}{6} = \frac{10}{6}\)

Now if you want to leave it as an improper fraction your answer will be \(\frac{10}{6}\). However, if you want you answer to be a proper fraction your answer is \(1\frac{4}{6}\) which can be simplified further to,\(1\frac{2}{3}\).

Whew! What a toughie! We showed that math problem!

Step-by-step explanation:

8-1,2,4,8

12-1,2,3,4,6,12

15-1,3,5,15

20-1,2,4,5,10,20