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3 years ago

Please answer correctly i kinda cant pass the math if i dont.

Mathematics

2 answers:

Rufina [12.5K]3 years ago

7 0

C is the answer
a is the answer
b is the answer
D is the answer

Arada [10]3 years ago

6 0

Hello there.

Answers:
1) y = 2x - 1
2) y = -x
3) y = 2x
4) y = x + 4.

Hope This Helps You!
Good Luck Studying ^-^

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If A and B are independent events with P(A) = .5 and P(B) = .2, find the following:a) P(A U B)b) P(A^c ? B^c)c) P(A^c U B^c)**No

Effectus [21]

If A and B are independent, then $P(A\cap B)=P(A)P(B)$ .

$P(A\cup B)=P(A)+P(B)-P(A\cap B)=P(A)+P(B)-P(A)P(B)$

$P(A\cup B)=0.5+0.2-0.5\cdot0.2$

$\boxed{P(A\cup B)=0.6}$

b. I'm guessing the ? is supposed to stand for intersection. We can use DeMorgan's law for complements here:

$P(A^c\cap B^c)=P(A\cup B)^c=1-P(A\cup B)$

$P(A^c\cap B^c)=1-0.6$

$\boxed{P(A^c\cap B^c)=0.4}$

c. DeMorgan's law can be used here too:

$P(A^c\cup B^c)=P(A\cap B)^c=1-P(A\cap B)=1-P(A)P(B)$

$P(A^c\cup B^c)=1-0.5\cdot0.2$

$\boxed{P(A^c\cup B^c)=0.9}$

4 0

2 years ago

A company has budgeted direct materials purchases of $300,000 in July and $480,000 in August. Past experience indicates that the

jasenka [17]

Answer:

The budgeted cash disbursement for August is $696,000

Step-by-step explanation:

July direct material purchase is

30% of 300000 =$90000

August direct material purchase

70% of 480000 = $336000

Wage expense =$ 150000

Purchase of office equipment= $72000

Selling and administrative expense= $ 48000

Depreciation=0

Adding everything gives $696000, which is the budgeted cash disbursement for August.

4 0

3 years ago

Solve for the indicated variable in the literal equation

ANTONII [103]

Answer:

$x = \frac{y}{3} - \frac{5}{3}$

Step-by-step explanation:

Given

$y = 5 + 3x$

Required

Solve for x

Subtract 5 from both sides

$y-5 = 5 -5+ 3x$

$y-5 = 3x$

Divide through by 3

$\frac{y}{3} - \frac{5}{3} = x$

$x = \frac{y}{3} - \frac{5}{3}$

8 0

3 years ago

AE is an angle bisector of BAC if the measure of BAE = x + 30 and masure of angle EAC = 3x-10 determine Measure of angle EAC

TEA [102]

The measure of angle EAC is equivalent to 50 degrees.

5 0

2 years ago

What is the determinant of 15 18 154

IgorC [24]

Answer:

The determinant is 15.

Step-by-step explanation:

You need to calculate the determinant of the given matrix.

1. Subtract column 3 multiplied by 3 from column 1 (C1=C1−(3)C3):

$\left[\begin{array}{ccc}-25&-23&9\\0&3&1\\-5&5&3\end{array}\right]$

2. Subtract column 3 multiplied by 3 from column 2 (C2=C2−(3)C3):

$\left[\begin{array}{ccc}-25&-23&9\\0&0&1\\-5&-4&3\end{array}\right]$

3. Expand along the row 2: (See attached picture).

We get that the answer is 15. The determinant is 15.

6 0

3 years ago