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Katarina [22]
3 years ago
12

Anyone help with these 2 question?

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
8 0

Step-by-step explanation:

1.√2×(-2√9)×(-√2)

= -2×(-2×3)

=12 option a

2. √5×√15×√75

= √5×(√3√5)×(5√3)

= 5×3×5

=75 option b

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7.6g of sugar is needed for every cake made. How much sugar is needed for 5 cakes
vladimir2022 [97]

Answer:

38 grams

Step-by-step explanation:

7.6*5=38

8 0
3 years ago
Lexi borrowed $425 from a friend. Six months later, she repaid her friend $450. What annual simple interest rate did she pay?
madreJ [45]

Lexi borrowed $425 and paid back $450, so the interest paid was $25 (subtract 450 and 425). Then divide the interest over the expression P*t = 425*0.5 = 212.5 to get 25/212.5 = 0.1176 approximately which converts to the annual interest rate of 11.76% (approximately).

If you want to use a formula, then,

i = P*r*t

25 = 425*r*0.5 <---- t = 0.5 to represent half a year

25 = 4250.5*r

25 = 212.5*r

212.5*r = 25

r = 25/212.5

r = 0.1176

r = 11.76%

7 0
4 years ago
What is 0. 24 (24 is repeating) expressed as a fraction in simplest form?
Svetradugi [14.3K]

Answer:

6/25

Step-by-step explanation:

24/100

12/50

6/25

8 0
3 years ago
For several weeks, a server records the number of desserts, d, ordered by diners at each table and the tip, t, in dollars, he re
Nimfa-mama [501]
9.1 means that w<span>hen a table orders no desserts, the model predicts the server will earn an average tip of $9.10.</span>
8 0
3 years ago
Read 2 more answers
A clean air standard requires that vehicle exhaust emissions not exceed specified limits for various pollutants. Many states req
AysviL [449]

Answer:

Step-by-step explanation:

The null hypothesis in this case is: There is significant evidence that the shop is certifying vehicles that do not meet standards so their license gets revoked

a. A type I error in this context occurs if the null is rejected when in actuality, it is true. This means, the shop is certifying vehicles that do not meet standards but their license does not get revoked

b. A type II error in this context occurs if they fail to reject the null when in actuality, it is no true. This means, the shop is not certifying vehicles that do not meet standards but their license does get revoked.

c. Which type of error would the shop's owner consider more serious?

The type II error because it affects the shop owner despite their credibiity

d. Which type of error might environmentalists consider more serious?

The type I error.

6 0
4 years ago
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