2 years ago

What is the answer in scientific notation

Mathematics

1 answer:

chubhunter [2.5K]2 years ago

5 0

The answer would be 3 times 10^-5

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There are 33 boxes of erasers in the supply closet. Each box contains 34 erasers. How many erasers are there in all?

Sedbober [7]

Answer:

The answer is 1,122

Step-by-step explanation:

33 x 34

7 0

3 years ago

The SAT Reasoning Test (formerly called the Scholastic Aptitude Test) is perhaps the most widely used standardized test for coll

slamgirl [31]

Answer:

The score is $x = 1884$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1500$

The standard deviation is $\sigma = 300$

From the question we are told that the score follow a normal distribution

i.e $X \~ \ N( 1500 , 300)$

The proportion of score in the top 10% is mathematically

$P(X > x ) = P( \frac{X - \mu}{\sigma } > \frac{x - \mu}{\sigma } ) = 0.10$

Where x is the minimum score required to be in the top 10%

Now the $\frac{X - \mu}{\sigma } = Z (The \ Standardized \ value \ of \ X)$

$P(X > x ) = P( Z > \frac{x - \mu}{\sigma } ) = 0.10$

$P(X > x ) = P( Z > \frac{x - 1500}{300} ) = 0.10$

So the critical value of 0.10 from the normal distribution table is $Z_{0.10} = 1.28$

$\frac{x - 1500}{300} = 1.28$

$x = 1884$

6 0

3 years ago

If m angle acd = 120- x, m angle b = 60, and m angle a = 10 + x, find m angle acb

lesya [120]

Answer:

ACB = 85

Step-by-step explanation:

First find x:

10+ x + 60 = 120 - x

x + 70 = 120 - x

Add x to both sides

2x + 70 = 120

subtract 70 from 120

2x = 50

Divide 2 from both sides

x = 25

10 + 25 + 60 = 95

Subtract 95 from 180

ACD = 85

5 0

3 years ago

Read 2 more answers

At the bookstore checkout, you watch as the register rings up your purchases and coupons.

stellarik [79]

2.00+9.00+6.00+3.00+5.00+4.00+8.00-1.00-2.00= $34.00$1.44 - 34.00

41.44 - 34.00 = 7.44
The difference is $7.44, therefore the amount on the register is not reasonable.

8 0

3 years ago

Find the value of the lesser root of x2 + 12x + 35 = 0.<br> A) -7 <br> B) -5 <br> C) 3 <br> D) 5

Katena32 [7]

X2 + 12x +35 = 0
(x+5) (x+7) = 0
x + 5 = 0 x + 7 =0
x= - 5 or x= - 7

5 0

3 years ago