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3 years ago

All numbers can be both rational and irrational true or false?

1 answer:

8 0

All numbers that are not rational are considered irrational. An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point.

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I need help finding the measure of the missing angles

Anvisha [2.4K]

Answer:

x = 61°

y = 29°

Step-by-step explanation:

Since x°+29° is a right angle (90°), you would have to subtract 29 from 90 to get x.

90 - 29 = x

90 - 29 = 61

x = 61°

For y: You can infer that y°+x°=90° as well because the angles are corresponding angles. So to find y°, you would do the same thing as finding x.

90 - x = y

90 - 61 = 29

y = 29°

Hope this helps :)

6 0

3 years ago

Find the measure of the indicated angle

IgorLugansk [536]

Answer:

Angle A is also the measurement of 48 degrees because the dashes on the triangle lines indicate that they are the same.

Step-by-step explanation:

3 0

3 years ago

A local bookstore tracked the type of payments people make at their store. Out of 100 people, 40 paid with cash, 55 paid with a

Whitepunk [10]

Answer:

Cash = 240, Credit = 330, Gift = 30

Step-by-step explanation:

We know from this the precentage of people using different payment methods

Cash = 40/100 = 40%

Credit card = 55/100 = 55%

Gift card = 5%

We can then find the number of people using each method regardless of total amount of people

Cash = 40% * 600 = 240

Credit = 55% * 600 = 330

Gift card = 5% * 600 = 30

Total = 240 + 30 + 330= 600

6 0

3 years ago

Read 2 more answers

In a survey of 3,000 people who owned a certain type of car, 1,050 said they would buy that type of car again. What percentage o

geniusboy [140]

34%
This is because when you divide 1,050 by 3,000 you get 0.34 then turn that into a percent then there you go

3 0

3 years ago

Please Help!!!!<br> Will mark brainliest. Thank you so much for your help

matrenka [14]

Answer:

$y=400(2.5)^{x}$

3,814,698

16.08 weeks

Step-by-step explanation:

The question presented here is similar to a compound interest problem. We are informed that there are 400 rice weevils at the beginning of the study. In a compound interest problem this value would be our Principal.

P = 400

Moreover, the population is expected to grow at a rate of 150% every week. This is equivalent to a rate of interest in a compound interest problem.

r = 150% = 1.5

The compound interest formula is given as;

$A=P(1+r)^{n}$

We let y be the weevil population in any given week x. The formula that can be used to predict the weevil population is thus;

$y=400(1+1.5)^{x}\\\\y=400(2.5)^{x}$

The weevil population 10 weeks after the beginning of the study is simply the value of y when x = 10. We substitute x with 10 in the equation obtained from a) above;

$y=400(2.5)^{10}\\\\y=3814697.3$

Therefore, the weevil population 10 weeks after the beginning of the study is approximately 3,814,698

We are simply required to determine the value of x when y is

1,000,000,000

Substitute y with 1,000,000,000 in the equation obtained in a) above and solve for x;

$1000000000=400(2.5)^{x}\\\\2.5^{x}=2500000\\\\xln(2.5)=ln(2500000)\\\\x=\frac{ln(2500000}{ln(2.5)}=16.0776$

8 0

4 years ago