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4 years ago

6

What's the correct letter name for Ð1 below

1 answer:

Mashcka [7]4 years ago

4 0

If this is the same question as i last saw then the answer is <ABC

You might be interested in

How is 89 a prime number

ad-work [718]

Hello,

10*10=100>89
n=89 is prime if it not divisible by all prime less then its square root

0<89<100 ==>0<√89<10
The primes to test are 2,3,5,7.
89 does not end with a even digit ==> 89 is not divisible by 2
8+9=17 if not divisible by 3 ==>89 is not divisible by 3
89 does not end with 0 or 5 ==>89 is not divisible by 5

3*8+1*9=33 is not divisible by 7 ==>89 is not divisible by 7

So: 89 is prime.

4 0

3 years ago

The length, height, and width of a cube are multiplied by 6. What effect does this have on the surface area of the cube?

Harman [31]

Answer:

Surface Area increases by 36 times.

Step-by-step explanation:

$Let \ length, \ height \ and \ width \ of \ a \ cube \ be \ a$

$Surface \ Area = 6a^2$

$Now \ length, \ height \ and \ width \ are \ multiplied \ by \ 6, that \ is \ sides = 6a$

$New \ Surface\ area = 6 (6a)^2 = 6 (36a^2) = 36 \times 6a^2$

$That \ is \ new \ surface \ area = 36 \times \ old \ surface\ area$

4 0

3 years ago

A family has an annual income of $28,800. Of this, 1/4 is spent for food, 1/5 for housing, 1/10 for clothing, 1/9 for

GuDViN [60]

food:7200

housing:5760

clothing:2880

savings: 3200

taxes:7200

other:2560

3 0

4 years ago

In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older

earnstyle [38]

Answer:

Step-by-step explanation:

In the past, mean of age of employees

i.e. $\mu = 40$

Recently sample was taken

n = sample size = 60

Mean of sample = 45

Std dev of sample s = 16

$H_0: \bar x = 40\\H_a: \bar x >40$

(Right tailed test)

Since only population std deviation is known we can use t test only

Std error = $\frac{s}{\sqrt{n} } \\=\frac{16}{\sqrt{61} } \\=2.049$

Mean difference = 45-40 =5

Test statistic t= $\frac{5}{2.049} \\=2.441$

df = 60

p value =0.008739

Since p < 0.05 we reject null hypothesis

The mean age has increased.

5 0

3 years ago

Can u help me please?

slavikrds [6]

21.W hich value of y makes the following equatoin true?
answer:B

7 0

3 years ago