All categories

3 years ago

3. Find the value of:a) 9²b) 15²c) (0.2)²d) (0.7)

Mathematics

1 answer:

mojhsa [17]3 years ago

7 0

Answer:

Step-by-step explanation:

9^2

=9*9

=81

15^2

=15*15

=225

(0.2)^2

=0.2 * 0.2

=0.04

(0.7)

=0.7

You might be interested in

Maria baked x cookies. She distributed the

Phantasy [73]

Answer: She baked 108 cookies!

Step-by-step explanation: I did : (6x8) and it gave me (108) and too check my answer i did (108 divided my 6) it gave me 18.

6 0

3 years ago

Previous studies have reported that elite athletes are often deficient in their nutritional intake (for example, total calories,

Naddik [55]

Answer:

(3138.29, 3705.11)

Step-by-step explanation:

Given that for sample size of n = 50 male athletes from eight Canadian sport centers surveyed, the average caloric intake was 3077.0 kilocalories/day with a sample standard deviation of 987.0.

The recommended amount = 3421.70

To construct 95% confidence interval

Since population std deviation is not known we use t critical value for degree of freedom 50-1 =49

t critical = 2.010

Hence margin of error = $2.010*\frac{987}{\sqrt{50-1} } \\=283.41$

Confidence interval lower bound = $3421.70-283.41\\=3138.29$

Confidence interval upper bound = $3421.70+283.41\\=3705.11$

Conf interval = $(3138.29, 3705.11)$

7 0

4 years ago

Enzo saw

Zinaida [17]

Answer:

Its easy 45×9=405 simple Mental math

5 0

3 years ago

Which of the following describes the root of the following function? f[x] = -x2 3x + 1 Select one a. Exactly 1 rational root. b.

Dafna11 [192]

Answer:

please stop being lazy by using OCR! next time type the question!

there's nothing such as = -x2 3x + 1

it's probablhy f(x) = -x² + 3x + 1

4 0

3 years ago

Whats 35.78 rounded to the nearest whole second?

Kobotan [32]

The answer would be 36

8 0

3 years ago

Read 2 more answers

3. Find the value of:a) 9²b) 15²c) (0.2)²d) (0.7)​

3. Find the value of:a) 9²b) 15²c) (0.2)²d) (0.7)