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Romashka-Z-Leto [24]
2 years ago
7

Asappppppppp?????????????​

Mathematics
1 answer:
Alik [6]2 years ago
8 0
The answer is “+”
..........
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Use the equation P(A or B)= P(B)-P(A and B) to find the missing value below.
Anvisha [2.4K]

Answer:

P(B) = \frac{7}{8}

Step-by-step explanation:

Given

P(A or B)= P(B)-P(A and B)

P(A)=1/3

P(A and B)=1/8

P(A or B)= 3/4

Required

Find P(B)

To find P(B), all we need to do is to substitute values of P(A or B) and P(A and B) in the given equation.

This goes thus;

P(A or B) = P(B) - P(A and B) becomes

\frac{3}{4} = P(B) - \frac{1}{8}

Make P(B) the subject of formula

P(B) = \frac{3}{4} + \frac{1}{8}

Take L.C.M

P(B) = \frac{6 + 1}{8}

Add fractions

P(B) = \frac{7}{8}

From the workings above, the value of P(B) using the given equation is \frac{7}{8}

6 0
3 years ago
Why does the formula for area of a triangle makes sense.
galben [10]

Answer: bh=4×5=20b, h, equals, 4, times, 5, equals, 20 square units, so the area of the triangle is \dfrac 12 bh = \dfrac 12 \times 4 \times 5 = 10

2

1

​

bh=

2

1

​

×4×5=10start fraction, 1, divided by, 2, end fraction, b, h, equals, start fraction, 1, divided by, 2, end fraction, times, 4, times, 5, equals, 10

Step-by-step explanation:

4 0
2 years ago
What is the solution set?<br><br> (0, -2)<br> (2, 0)<br> (7, 0)<br> (5, 3)
Dvinal [7]

Answer:

(5,3)

Step-by-step explanation:

Look for the coordinates of the point of intersection where the 2 graphs cross. This gives the solution.

In this case, they cross at (5,3) and they intersect at only one location (i.e there is only 1 solution)

7 0
3 years ago
Read 2 more answers
I need help on How to do it
Sloan [31]
200g × 0.9 × 1/2 = 90 g
5 0
3 years ago
Factor the polynomial:<br> 4x^2 - 121
Archy [21]

Answer:

(2x + 11)(2x - 11)

Step-by-step explanation:

4x² - 121

rewrite the expression in the form of (a)² - (b)²:

(2x)² - (11)²

difference of squares a²-b²=(a+b)(a-b):

(2x + 11)(2x - 11)

7 0
2 years ago
Read 2 more answers
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