3 years ago

A set of math tests is normally distributed

Mathematics

1 answer:

sergey [27]3 years ago

3 0

2.2-0.6=1.6

1.6*81=129.6

129.6/2=64.8

Answer: 64.8

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Need help ASAP Tysm! :))

Mrrafil [7]

Answer:

The answer is -86

Step-by-step explanation:

-7 squared is 49

49 × 2 = 98

12-98= -86

4 0

3 years ago

How many time larger is 9x10^-8 than 3x10^-12

kkurt [141]

Step-by-step explanation:

$\frac{9 \times 10 {}^{ - 8} }{3 \times 10 {}^{ - 12} }$

Apply Quoteint of Powers. Divide the intergers. serpately.

Note that Quotient of Powers is

$\frac{a {}^{x} }{a {}^{y} } = a {}^{x - y}$

So the answer is

$3 \times 10 {}^{ - 8 + 12} = 3 \times 10 {}^{4}$

The answer is

$3 \times 10 {}^{4}$

$30000$

3 0

3 years ago

Read 2 more answers

10×7, but seriously I need someone to answer the question in the pic thx

levacccp [35]

70
the answer for the problem in the pic is A i think

7 0

2 years ago

What number increased by 15% equal 161

kkurt [141]

Answer:

100%+15% = 115%

proportionally:

x - 100%

161 - 115%

x = (161 * 100%) / 115% = 140

4 0

3 years ago

Read 2 more answers

A number a is to the left of the number b on the number line how do the numbers -a and -b compare?

Leokris [45]

Answer:

-a will be greater than -b because for example, when a=2 and b=5, -a=-2 and -b=-5

8 0

2 years ago