1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksklad [387]
3 years ago
7

A brother and a sister are in the same math class. There are 8 boys and 10 girls in the class. One boy and one girl are randomly

chosen What
is the probability that the brother and sister are chosen? Write your answer as a fraction in simplest form
Mathematics
1 answer:
Anon25 [30]3 years ago
6 0

Answer:

1/80

Step-by-step explanation:

You might be interested in
Applications Day #1:
Lelu [443]
I don’t even know how to get the information from the school that is not working on my
6 0
3 years ago
The height of Atlas V rocket used for space lifts was 205 feet. What is the height of a model of Atlas V rocket if the scale fac
KengaRu [80]

Answer: 6.4 feet

Step-by-step explanation:

Height of Atlas V rocket = 205 feet

Ratio of the model = 1:32 = 1/32

Model / Real = 1/32

Since Real height = 205, we put it into the equation and this will be:

Model / Real = 1/32

Model / 205 = 1/32

Model × 32 = 205 × 1

Model = 205/32

Model = 6.4 feet

The height of the model is 6.4 feet.

7 0
3 years ago
Suppose you buy a phone for $200 and its value depreciates linearly. If the phone is worth $115 after four years, then what is t
vredina [299]

Answer:

$72.5

Step-by-step explanation:

  • Initial value = $200
  • Depreciated value after 4 years = $115

<u>Since depreciation rate is linear, then:</u>

  • 200 - 4x = 115
  • 4x = 200 - 115
  • 4x = 85
  • x = 85/4
  • x = 21.25

<u>Value after 6 years:</u>

  • 200 - 6*21.25 = 200 - 127.5 = $72.5
3 0
4 years ago
Show that the equation 2x + 3 cos x + e ^ x = 0 has a root on the interval [- 1, 0]
ExtremeBDS [4]

If <em>x</em> = -1, you have

2(-1) + 3 cos(-1) + <em>e</em> ⁻¹ ≈ -0.0112136 < 0

and if <em>x</em> = 0, you have

2(0) + 3 cos(0) + <em>e</em> ⁰ = 4 > 0

The function <em>f(x)</em> = 2<em>x</em> + 3 cos(<em>x</em>) + <em>eˣ</em> is continuous over the real numbers, so the intermediate value theorem applies, and it says that there is some -1 < <em>c</em> < 0 such that <em>f(c)</em> = 0.

5 0
3 years ago
Okay here is another math problem I'll give a brainliest for the right answer!
Sliva [168]
To find the total area of this figure, you have to find the area of each of the separate figures and then add those 2 answers together. Your work should look like this:

2 x 2 = 4

8 x 8 = 64

64 + 4 = 68

Your answer should be 68 ft.^2
4 0
3 years ago
Other questions:
  • If a coin is flipped and then a six-sided number cube is rolled, what is the probability that the outcome will be Heads and a 2?
    5·1 answer
  • Paul bought a student discount card for the bus. The card allows him to buy daily bus passes for $1.30. After one month, Paul bo
    5·1 answer
  • What is the answer to this question ?
    9·1 answer
  • The principal of a large high school wants to know if students spend more than 1 hour doing homework per night, on average. To i
    15·1 answer
  • Divide. Write each quotient in simplest form. Please help I can't figure this out.
    11·1 answer
  • What is the value of x in <br> 150-35x=45
    15·1 answer
  • There is a bag filled with 4 blue, 3 red and 5 green marbles.
    10·2 answers
  • You are riding in a hot air balloon on Valentine’s Day withyour sweetheart. As you get ready to set your balloon downyou notice
    15·1 answer
  • Im so confused please help with 5 and 6
    12·2 answers
  • Show your work for the math problem
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!