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3 years ago

14. Which shows how to find 5 x 72 mentally by using the Distributive

Mathematics

2 answers:

Sholpan [36]3 years ago

5 0

The answer to the question is B
Hope this helps :)

o-na [289]3 years ago

4 0

Answer:

Step-by-step explanation:

5(70)= 350

5(2)= 10

350+10=360

72(5)= 360

i hope this helps!

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V= 2i +9j Find ||9v||

Korvikt [17]

Answer:

9 $\sqrt{85}$

Step-by-step explanation:

9v = 9(2i + 9j) = 18i + 81j

|9v | = $\sqrt{18^2+81^2}$ = $\sqrt{x6885}$ = 9 $\sqrt{85}$

8 0

3 years ago

Help me Plz I’m stuck

spin [16.1K]

Answer:

Use all the given information:

Price of a slice in $ - x

Number of slices- 3

Total cost of slices- 3x

Price of chopped cheese in $-  2+x

Number of chopped cheeses- 4

Total cost of chopped cheeses- 8+4x

Total cost- 7x+8

Step-by-step explanation:

We are told that the price of a slice is x and that Dashaun bought 3 slices.

So to find the total amount paid for slices, multiply the price by the number of slices:

$3*x=3x$

We are told that the price of chopped cheese is $2 more than a slice. Use y as the cost for chopped cheese:

$y=2+x$

Dashaun bought 4 chopped cheeses.

To find the total cost of chopped cheeses bought, multiply the cost per cheese by the amount of cheese purchased:

$4y$

Insert the value of y:

$4(2+x)$

Use the distributive property:

$8+4x$

This is the total cost for the chopped cheeses.

To find the total of lunch, add the prices for the slices and cheeses together:

$T=3x+8+4x\\\\T=7x+8$

The total cost for lunch is 7x+8

:Done

4 0

3 years ago

Composite functions g(d) = 2d - 5 h(d) = -4d +3 Find (hºg)(d)

hoa [83]

Answer:

$(h\circ g)(d)=-8d +23$

Step-by-step explanation:

Composite Function

Given g(d) and h(d) real functions, the composite function named (hog)(d) is defined as:

$(h\circ g)(d)=h(g(x))$

For practical purposes, it can be found by substituting g into h.

The functions g and h are given as:

$g(d) = 2d - 5$

$h(d) = -4d +3$

Substituting g into h:

$(h\circ g)(d)=-4(2d - 5) +3$

Operating:

$(h\circ g)(d)=-8d +20 +3$

$\boxed{(h\circ g)(d)=-8d +23}$

8 0

3 years ago

The table below shows which hand is favored by each person from a sample of 100 people (50 male and 50 female). Use the informat

Yuliya22 [10]

The probability that a randomly selected person from the sample will be female or left-handed will be 0.05.

<h3 /><h3>What is the probability?</h3>

Probability is synonymous with possibility. It is concerned with the occurrence of a random event.

Probability can only have a value between 0 and 1. Its simple notion is that something is very likely to occur. It is the proportion of favorable events to the total number of events.

Given data;

Total number of sample,n(S) = 100 person

No of female or left-handed is,n(E) =5

P(E) is the probability that a randomly selected person from the sample will be female or left-handed

The probability that a randomly selected person from the sample will be female or left-handed is found as;

P(E) = n(E)/n(S)

P(E) = 5 / 100

P(E) = 0.05

Hence the probability that a randomly selected person from the sample will be female or left-handed will be 0.05.

To learn more about probability, refer to the link: brainly.com/question/795909.

#SPJ1

6 0

2 years ago

9, 8.7, 9.31, 8.0, 8.05 from least to greatest

KATRIN_1 [288]

Answer:

8.0, 8.05, 8.7, 9, 9.31

8 0

3 years ago