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son4ous [18]
3 years ago
15

Unit 3 | Lesson 9

Mathematics
1 answer:
Charra [1.4K]3 years ago
5 0
The formula d = rt gives the distance traveled in time t at rate r. A bicyclist rides for 1.5 hours and travels 25 miles. 
d= D. 37.5 miles per hour
r= 25
t=1.5
25*1.5
=37.5

D.
37.5 miles per hour
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104 divided 4 with distributive property
Vikki [24]
You can do 104 divided by 2 and get 52 and then you can divide it for 2 again and get 26
4 0
3 years ago
Read 2 more answers
the table above represents what type of function x 0,1,2,3 y -6 , -5 ,2 ,21 a.) linear b.) neither linear or nonlinear c.) linea
Juliette [100K]

Answer:

D

Step-by-step explanation:

Given the table

\begin{array}{ccccc}x&0&1&2&3\\ \\y&-6&-5&2&21\end{array}

The change in x is

1-0=2-1=3-2=1

The change in y is

-5-(-6)=1\\ \\2-(-5)=7\\ \\21-2=19

Since for the same change in x, the change in y is different, given table represents nonlinear function.

3 0
3 years ago
Need some assistance with the following problem.
Lisa [10]

Answer:

The provided statement \exists x(x^2-4=1) is true in the domain of real number.

Step-by-step explanation:

Consider the provided information.

Any equation or inequality with variables in it is a predicate in the domain of real numbers.

The provided statement is:

\exists x(x^2-4=1)

Here, we need to find the value of x for which the above statement is true.

Since the value of x can be any real number so we can select the value of x as √5

(√5)²-4=1

5-4=1

Which is true.

Thus, the provided statement \exists x(x^2-4=1) is true.

7 0
3 years ago
Multiplication to find ratios that are equivalent to 4:5
Sindrei [870]

Answer:

You can multiply 4 and 5 by a number, and it will be equivalent.

Let's use the number 3.

4 x 3=12

5 x 3=15

So, it will be 12:15

8 0
3 years ago
In order to conduct an experiment, 4 subjects are randomly selected from a group of 20 subjects. How many different groups of fo
irga5000 [103]

Answer:

The number of ways to form different groups of four subjects is 4845.

Step-by-step explanation:

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

{n\choose k}=\frac{n!}{k!\times (n-k)!}

In this case, 4 subjects are randomly selected from a group of 20 subjects.

Compute the number of ways to form different groups of four subjects as follows:

{n\choose k}=\frac{n!}{k!\times (n-k)!}

{20\choose 4}=\frac{20!}{4!\times (20-4)!}

      =\frac{20\times 19\times 18\times 17\times 16!}{4!\times 16!}\\\\=\frac{20\times 19\times 18\times 17}{4\times3\times 2\times 1}\\\\=4845

Thus, the number of ways to form different groups of four subjects is 4845.

5 0
3 years ago
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