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GenaCL600 [577]
3 years ago
12

Lucrecia is saving up money to buy a birthday present for her best friend. She has saved up 16% of the $40 she needs. How much m

oney does she have? How much money does she still need to save?
Mathematics
1 answer:
choli [55]3 years ago
6 0

Answer:

6.40 saved 33.60 needed

Step-by-step explanation:

She needs $40 *16% = $6.40

$6.40 saved - $40 = $33.60 needed

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the amount a basketball coach spends at a sporting good store depends on the number of basketballs the coach buys. the situation
algol13

Answer: 0,16,32,48,64

Step-by-step explanation: the equation 16b means you will multiple 16 by whatever is in the b box. For the first b is equal to 0 so 16x0 = 0, the second b is equal to 1 so 16x1 = 16

6 0
2 years ago
In the interval 0 x 360 find the values of x for which cos x =0.7252
Sergeeva-Olga [200]

Answer:

x_1 = 43.5145\°

x_2 = 316.4855\°

Step-by-step explanation:

We have a positive value for the cosine of x, so we know that the value of x should be in the first quadrant (0 ≤ x ≤ 90) or in the fourth quadrant (270 ≤ x ≤ 360).

Now, let's find the value of x that gives cos(x) = 0.7252 using the inverse function of the cosine, that is, the arc cosine function.

The value of x can be calculated using:

x = arccos(0.7252)

Using this function in a calculator (you may find it as: cos^{-1}(x)), we have that:

x_1 = 43.5145\°

So this is the value of x in the first quadrant. To find the other value of x, in the fourth quadrant, that gives the same result, we just need to calculate 360° minus the value we found:

x_2 = 360\° - 43.5145\° = 316.4855\°

So the values of x are:

x_1 = 43.5145\°

x_2 = 316.4855\°

7 0
3 years ago
Complete the table. Describe one pattern that you find.
Agata [3.3K]
Well since you already completed the table, a pattern would be that the left column is twice the amount of the right column ( 30x2=60, 35x2=75,etc.)
5 0
3 years ago
According to one pollster, 43 % of people are afraid of flying. Suppose that a sample of size 26 is drawn. Find the value of sta
VikaD [51]

Answer:  0.0971

Step-by-step explanation:

Given : Sample size : n=26

The percent of people are afraid of flying =43\%

Thus the proportion of people are afraid of flying P=0.43

We know that the formula to find the standard deviation of the distribution of sample proportions is given by :-

\text{S.E.}=\sqrt{\dfrac{P(1-P)}{n}}\\\\\Rightarrow\text{S.E.}=\sqrt{\dfrac{0.43(1-0.43)}{26}}\\\\\Rightarrow\ \text{S.E.}=0.0970923430396\approx0.0971

Hence, the standard deviation of the distribution of sample proportions = 0.0971

8 0
3 years ago
Use the spinner to find the theoretical probability of the event. Write your answer as a fraction or a percent rounded to the ne
Rama09 [41]

Complete question :

Picture relating to the question is attached below.

Answer:

1 / 3

Step-by-step explanation:

The Theoretical probability of an event is defined as :

P(event) = required outcome / Total possible outcomes

Based on the picture of the attached spinner below :

P(red) :

Required outcome = number of red partitions = 2

Total possible outcomes = total Number of partitions = 6

Hence,

P(Red) = 2 / 6 = 1/3

3 0
3 years ago
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