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3 years ago

Can you help me in this question please

Mathematics

2 answers:

Tatiana [17]3 years ago

6 0

Answer: k= M times 3

Step-by-step explanation:

Ede4ka [16]3 years ago

3 0

Answer:

K=M×3

Step-by-step explanation:

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Help me please asap due tomorrow

alisha [4.7K]

Answers:

1. 40

3. 63

4. 100

5. 40

6. 72

Formulas:

3. $\frac{(6+12)7}{2} \\$

4. $\frac{(11+14)8}{2}$

7 0

3 years ago

A cheetah's speed was timed over a set distance. The cheetah was clocked running 60 miles per hour. Which equation is the relati

Troyanec [42]

Answer:

D. y=70x

Step-by-step explanation:

The cheetah was clocked running 70 miles per hour.

i.e. in 1 hour cheetah covered 70 miles

in 2 hours cheetah covered 140 miles

in 3 hours cheetah covered 210 miles

in general, in n hour cheetah covered 70n miles

If y denote the distance covered

and x denotes the time cheetah runs

Then, y=70x

Hence, the equation which shows the relationship between the distance, y, and time, x, the cheetah runs is:

D y=70x

8 0

3 years ago

List all the ways to select two members from S with repetition. The order in which the members are selected is not important. Fo

nexus9112 [7]

Answer:

15 ways

Step-by-step explanation:

We are given that a set S={E,F,G,H,J}

We have to find the number of ways to select two members from S with repetition.

Combination formula

$\binom{n}{r}=\frac{n!}{r!(n-r)!}$

We have n=5 , r= 2

Number of ways in which two members from S can be selected when repetition is not allowed= $5C_2=\frac{5!}{2!(5-2)!}$

Number of ways in which two members from S can be selected when repetition is not allowed= $\frac{5\times4\times3!}{2\times1 3!]$

Number of ways in which two members from S can be selected when repetition is not allowed= $5\times 2=10$

When a member repeat then combination

{E,E},{F,F},{G,G},{H,H},{J,J}

There are 5 combination when a member is repeat and select two members from S.

Total number of ways in which to select two members from S with repetition =10+5=15 ways

3 0

4 years ago

At the beginning of the day the stock market goes down 50 1/2 points and stays at this level for most of the day. At the end of

IrinaK [193]

Answer:

<h2>The change for the day is 29 3/4</h2>

Step-by-step explanation:

In this problem, we are expected to calculate the change in the price of a particular stock

Given that the days high is 80 1/4

and also that the days low is 50 1/2

we can calculate the change by subtracting the days low from the days high

i.e 80 1/4- 50 1/2= 321/4-101/2= (321-202)/4= 119/4 = 29 3/4

<em>hence the change for the day is 29 3/4</em>

Also we can calculate the percentage change as

%change = (high-low)/low*100

%change= 80 1/4- 50 1/2/50 1/2= 29 3/4/50 1/2 *100

%change= 119/4*2/101 *100= 119/202*100= 0.589*100= 58.9%

%change= 58.9%

5 0

4 years ago

For every increase of 1 on the Richter scale, an earthquake is 10 times more powerful. Which of the following models this situat

stiks02 [169]

Im not sure but I think its d

8 0

3 years ago

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