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3 years ago

I just need to know how to calculate

Mathematics

1 answer:

Anton [14]3 years ago

8 0

Answer:

$-a^{2}$

Step-by-step explanation:

$\frac{-1}{a^{-2} } = \frac{-1}{\frac{1}{a^{2} } } = -1 * \frac{a^{2} }{1} = -a^{2}$

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If a variable has a distribution that is bell-shaped with mean 19 and standard deviation 7, then according to the Empirical R

melamori03 [73]

The empirical rule says that approximately 68% of a normal distribution falls within one standard deviation of the mean. In this case, this would include all values of the variable in the interval $(19-7,19+7)=(12,26)$ .

7 0

3 years ago

Paolo is using his grandmother’s cookie recipe. He always doubles the amount of chocolate chips and oats. The recipe calls for 2

nalin [4]

Answer:

y = 94.5 cups

Step-by-step explanation:

Let's say:

y = oats
x = chocolate chips = 212

=> Full Recipe = 212 + y

=> 2(Full Recipe) = 2(212 + y) = 613 cups

=> 2(Full Recipe) = 424 + 2y = 613 cups

=> 2y = 613 - 424

=> 2y = 189

=> y = 94.5

Therefore, the required oats to do double the recipe is 94.5 cups.

Hoped this helped.

$GeniusUser$

8 0

2 years ago

Tony’s club is selling oranges to raise money. For every box they sell, they get 1 1/8 dollars profit. They have sold 75 boxes a

Luden [163]

$1\frac{1}{8} = \frac{9}{8} = 1.125, 
 \\ 75*1.125= 84.375$

84.375 is the profit ALREADY made, so now subtract that from 180 dollars to get
95.625 $ needed, now divide by amount of profit per box...

Answer should be 85 boxes

4 0

3 years ago

The measure ∠BQS of is 80°. What is the m∠NQS? 42° 48° 128° 32°

fomenos

Answer:

m<NQS = 32°

Step-by-step explanation:

Given:

m<BQS = 80°

m<BQN = 48°

Required:

m<NQS

SOLUTION:

Angle BQN and angle NQS are adjacent angles having a common line, QN, and a common corner point, Q.

Therefore:

m<BQN + m<NQS = m<BQS (angle addition postulate)

48° + m<NQS = 80° (substitution)

m<NQS = 80 - 48° (Subtraction of 48 from each side)

m<NQS = 32°

3 0

3 years ago

Read 2 more answers

Solve for h -8 < -4h + 20

Vladimir [108]

Answer:

h < 7

Step-by-step explanation:

-8 < -4h + 20

4h < 28 / : 4

h < 7

5 0

3 years ago