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3 years ago

Need help is due tommorow and please please show your work please

Mathematics

2 answers:

faust18 [17]3 years ago

6 0

The answer is h because the 8 in the thousands place carries over to the 3 making it 4 with the answer 3.34

Alenkasestr [34]3 years ago

6 0

Letter h is the answer

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1 Suppose you choose at random a real number X from the interval [2, 10]. (a) Find the density function f(x) and the probability

antoniya [11.8K]

Answer:

Step-by-step explanation:

Given that you choose at random a real number X from the interval [2, 10].

a) Since this is a contnuous interval with all number in between equally likely

E = probability for choosing a real number is U(2,10)

pdf of E is $\frac{1}{8}$

b) P(X>5) = $\int\limits^10_5 {1/8} \, dx = \frac{5}{8}$

$P(5$

For

$x^2-12x+35 >0\\(x-5)(x-7)>0\\x7$

P(X<5 or x>7) = 1-P(5<x<7)

= $\frac{3}{4}$

4 0

3 years ago

Anybody help? reporting fake answers tysm!!

leva [86]

Answer:

2-----10

1-----5

3-----15

Step-by-step explanation:

For every 1 cup of blue paint, there are 5 cups of yellow paint

Hope this helps!

7 0

3 years ago

Help will mark brainlist if it correct If each edge of a cube is increased by 2 inches, the

Anastasy [175]

Answer:

D. sum of these edges is increased by 24 inches -- True

Step-by-step explanation:

Given a cube and its edge is increased by 2 inches.

To study the effect of this increase in the Volume, area of each face, diagonal and sum of edges.

Solution:

Let the side of original cube = a inches.

Formula for volume of cube:

$V =side^3 = a^3$

If the side is increased by 2 inches, the side becomes (a+2) inches.

So, new volume, $V' = (a+2)^3$

Using the formula:

$(x+y)^3 =x^3+y^3+3xy(x+y)$

$V' = (a+2)^3 = a^3+8+3\times 2 \times a(a+2)=a^3+8+6a(a+2)$

So, $V' = V + 8+6a(a+2)$

Volume increased by 8+6a(a+2) [which is not equal to 8]

So, statement is false:

A. volume is increased by 8 cubic inches -- False

Each face in a cube is a square.

Area of each face, A = $side^2 = a^2$

New area, A' = $(a+2)^2$

Using the formula: $(x+y)^2 =x^2+y^2+2xy$

$A' = a^2+4+4a$

Area increased by 4+4a [which is not equal to 4 sq inches]

B. area of each face is increased by 4 square inches -- False

Diagonal of each face = $a\sqrt2$

Increase of 2 in the edge:

New diagonal = $(a+2)\sqrt2 = a\sqrt2+2\sqrt2$

So, increase of $2\sqrt2$ not 2.

C. diagonals of each face is increased by 2 inches -- False

There are 12 number of edges in a square.

So sum of all 12 edges = 12a

When edge is increased by 2, sum of all edges = 12(a+2) = 12a + <em>24</em>

An increase of 24.

D. sum of these edges is increased by 24 inches -- True

4 0

3 years ago

Starting at sea level, a submarine descended at a constant rate to a depth of −4/5 mile relative to sea level in 3 minutes.

blagie [28]

Answer:

14/5

Step-by-step explanation:

8 0

3 years ago

I need to know how to solve this problem. it just says perform indicated operation

Alex Ar [27]

When dividing, you can flip the second fraction and multiply the two, giving you 5x/9 * 15x^2/18, which is 25x^3/54

3 0

3 years ago