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2 years ago

PLEASE HELP!!!!!

Mathematics

2 answers:

Tanya [424]2 years ago

7 0

The answer is “the width of the border”

timama [110]2 years ago

3 0

Answer:

Step-by-step explanation:

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What are some equivalent expressions of 0.003 x 0.00009

QveST [7]

Answer:

3x0.9, 30x9, 3/1000 times 9/10000

Step-by-step explanation:

Multiply each factor by multiples of ten.

6 0

2 years ago

A college student is taking two courses. The probability she passes the first course is 0.67. The probability she passes the sec

andrezito [222]

Answer:

0.58 = 58% probability she passes both courses

Step-by-step explanation:

We can solve this question treating the probabilities as a Venn set.

I am going to say that:

Event A: She passes the first course.

Event B: She passes the second course.

The probability she passes the first course is 0.67.

This means that $P(A) = 0.67$

The probability she passes the second course is 0.7.

This means that $P(B) = 0.7$

The probability she passes at least one of the courses is 0.79.

This means that $P(A \cup B) = 0.79$

a. What is the probability she passes both courses

This is $P(A \cap B)$ .

We use the following relation:

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

$P(A \cap B) = P(A) + P(B) - P(A \cup B) = 0.67 + 0.7 - 0.79 = 0.58$

0.58 = 58% probability she passes both courses

5 0

3 years ago

The height of a triangle is 6 inches. The area of the triangle is 45 square inches. What is the length of the triangle’s base?

arlik [135]

Answer:

15 in

Step-by-step explanation:

(basexheight)/2=area

basex6=45x2

base=45/3

base=15

5 0

2 years ago

Read 2 more answers

In triangle DEF, ZE is a right angle. If cos(D) = ? and sin(D) = 24, what is tan(D)?

musickatia [10]

Answer:

ans=24/7

Step-by-step explanation:

cosD=7/25=b/h

sinD=24/25=p/h

now....tanD=p/b=24/7

6 0

2 years ago

a point moves around the circle x^2+y^2=9. When the point is at (-sqrt3, sqrt6), the x coordinate is increasing at the rate of 2

oksian1 [2.3K]

To answer, subtract x² from both sides of the equation to give us,
y² = -x² + 9
Then, we derive the equation in terms t.
2y(dy/dt) = -2x(dx/dt)
Substituting the known values from the given,
2(sqrt6)(dy/dt) = -2(-sqrt3)(20)
The value of dy/dt is 14.14.

4 0

2 years ago