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3 years ago

Find angle V and explain why

Mathematics

1 answer:

ziro4ka [17]3 years ago

8 0

V= 50 degrees

This is because the line on which the angle 70 is at adds up to 180 and it we subtract 70 from the straight angle we have 110 degrees that means the other angle on the other side of the 70 is 110 so if we add 110 and 20 we get 130 and since all angles of a triangle add up to 180 we subtract 130 from 180 and get 50

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The diameter of a circle is 19 m. What is the circumference of the circle? Use 3.14 for pi.

Arlecino [84]

Answer:

D) 59.66 m

Step-by-step explanation:

circumference = 19π = 59.66 m

6 0

2 years ago

A retailer who sells backpacks estimates that by selling them for x dollars each, she will be able to sell 100−x backpacks each

zvonat [6]

Answer:

x = 50

R = $2500

Step-by-step explanation:

Given in the question a quadratic equation,

−x² + 100x

To find the selling price, x, which will give highest revenue, y, we will find maximum value of parabola curve −x² + 100x

The value of -b/2a tells you the value x of the vertex of the function

−x² + 100x

here a = -1

b = 100

Selling price = -(100)/2(-1)

= 50

R = −(50)² + 100(50)

= 2500

8 0

3 years ago

A) Write 84 as the product of prime factors.<br> Write the prime factors in ascending order.

timofeeve [1]

84 = 2 x 2 x 3 x 7 which can also be written 2² x 3 x 7.

Ascending order means to keep the factors in order from least to greatest.

3 0

3 years ago

I really need someone to answer this, QUICK!

Elodia [21]

Answer:

A. LCM=72 B. GCF=7 C. 7(5+9)

Step-by-step explanation:

A. 8/2=4/2=2 9/3=3 Use the denominators to find the LCM. In this case, the LCM is 72.

B. 35/5=7 63/3=21/3=7 The GCF for these numbers is 7 because it is the only factor that they have in common.

C. 7 x 14=88 Since 5 and 9 don't have common factors, they work perfectly for this problem.

6 0

3 years ago

A hair salon completed a survey of 367 customers about satisfaction with service(Dissatisfied, Neutral, Satisfied, or Very Satis

mamaluj [8]

The results of the survey are shown in the table.

It's required to calculate the following probabilities:

a) A customer is neutral

The row labeled as 'Neutral' has a total of 79 customers out of 367 in total.

The required probability is:

$p=\frac{79}{367}$

b) A customer is a walk-in

The first column labeled as 'Walk-in' has a total of 106 customers out of 367. The required probability is

$p=\frac{106}{367}$

c) A customer is dissatisfied and a walk-in.

We have to cross the row Dissatisfied with the column Walk-in. The number of customers that have both categories is 22 out of 367.

The required probability is:

$p=\frac{22}{367}$

d) A customer is very satisfied given he saw a TV ad.

This is a conditional probability, where the total is 111 because is the given condition. The customers that have both characteristics are 33, thus the required probability is:

$p=\frac{33}{111}=\frac{11}{37}$

e) A customer is satisfied or referred.

Total satisfied = 139

Total referred = 150

With both features = 62

Total customers with one or both features: 139 + 150 - 62 = 227

We have to subtract the common feature because it was counted twice.

The required probability is:

$p=\frac{227}{367}$

6 0

1 year ago