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Dmitry [639]
3 years ago
11

Robert claims that his dog can do single digit multiplication. He shows the dog 8 cards with simple multiplication problems that

are either correct or incorrect. The dog
correctly identifies the correctness of the card 5 times out of 8. If the dog were simply guessing, how many would the dog be expected to get correct?
05
08
13
04
Mathematics
1 answer:
brilliants [131]3 years ago
7 0

Answer:

4

Step-by-step explanation:

There are two possibilities: correct and incorrect. To the dog, these answers are both equally valid, since he does not actually know multiplication. So, correct and incorrect have an equal probability. This means that the dog is estimated to get about half of the questions right.

Therefore, he will get 8/2=4 of the questions correct.

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Consider the function f(x) = 3x + 1 and the graph of the function g(x) shown below.
MrRissso [65]

g(x) is a translation of 6 units downwards.

<h3>How to identify the translation that generates g(x)?</h3>

Here we have the function:

y = f(x) = 3x + 1

Notice that the y-intercept of f(x) is:

f(0) = 3*0 + 1 = 1

The y-intercept of f(x) is y = 1.

Now, we know that the y-intercept of g(x) is -5. then:

g(x) = 3x - 5 = f(x) - 6

Meaning that g(x) is a translation of 6 units downwards.

If you want to learn more about translations:

brainly.com/question/24850937

#SPJ1

4 0
2 years ago
Help me out question #9
Alex777 [14]
The original height of the plant is 20 inches, and each week for 4 weeks its height increases by 2h inches, so at the end of 4 weeks its height would be:
20 + 4(2h) = 20 + 8h
Now for the next two weeks the plant grows in height by h inches each week, so we need to add a further 2h inches to the equation. Thus the expression that shows the height of the plant after 6 weeks is:
20 + 8h + 2h = 20 + 10h, therefor A is the correct answer
4 0
3 years ago
Read 2 more answers
Point L is on line segment KM
Anna11 [10]

Answer:

KL = 15

Step-by-step explanation:

Given that,

Point L is on the line segment KM.

We have, KM=5x+10, LM=4x, and KL=3x

ATQ,

KM = KL + LM

Putting all the values, we get :

5x+10=3x+4x

5x+10 = 7x

Taking like terms together

5x-7x=-10

-2x=-10

x=5

Put x = 5 in KL = 3x

KL = 3(5) = 15

So, the value of length KL is 15.

7 0
4 years ago
Given: 9x &gt; -36.
devlian [24]
Solution set = {x | x > -4}
7 0
3 years ago
A regression was run to determine whether there is a relationship between hours of tv watched per day(x) and number of sit-ups a
lisabon 2012 [21]

Answer:

17

Step-by-step explanation:

Given the regression model :

Y=ax+b

x = Hours of TV watched per day

y= number of sit-ups a person can do

A=-1.341

B=32.234

Y = - 1.341x + 32.234

Predict Y, when x = 11

Y = - 1.341(11) + 32.234

Y = −14.751 + 32.234

Y = 17.483

Hence, the person Cann do approximately 17 sit-ups

7 0
3 years ago
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