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3 years ago

How do you do you solve this

Mathematics

2 answers:

Ivahew [28]3 years ago

7 0

Answer:

5/7

Step-by-step explanation:

7b^2 - 19b + 10 solve by simplifying the expression.

belka [17]3 years ago

3 0

7b^2 - 19b + 10
(b - 2)(7b - 5)

b1 = 2 ; b2 = 5/7

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larisa [96]

Answer:

7.9

Step-by-step explanation:

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3 years ago

Henry has collected data to find that the typing speeds for the students in a typing class has a normal distribution. What is th

Mekhanik [1.2K]

Answer: 0.8413

Step-by-step explanation:

Given : Henry has collected data to find that the typing speeds for the students in a typing class has a normal distribution.

Mean : $\mu=47$

Standard deviation : $\sigma= 4$

Let x be the random variable that represents the typing speeds for the students.

The z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 51

$z=\dfrac{51-47}{4}=1$

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3 years ago

How to write the number two hundred billion in half

Scorpion4ik [409]

Given number: Two hundred billion in half, how to write this one in standard form
let us first simplify each statement:
=> two hundred billion = 200 000 000 000
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3 years ago

On a snow day, Owen created two snowmen in his backyard. Snowman A was built to

faust18 [17]

Answer:

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B(t) = 42 - 3t

The lines plotted, see attached

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3 years ago

Round your answer to one decimal digit. The volume of a cylinder is 1800cm squared. if the height of the cylinder is 40cm then t

jonny [76]

$_____________________________________$

$\sf\huge\underline\red{SOLUTION:}$

Use formula:

$\sf{V = \pi(\frac{d}{2})^2h}$

Solving for diameter:

$\sf d = 2 \times \sqrt{ \frac{V}{\pi h} } \\ \sf = 2 \times \sqrt{ \frac{40}{\pi \times 1800} } \approx0.16821 \\ = \sf \large\boxed{\sf{\green{d = 0.17}}}$

$\sf\huge\underline\red{FINAL \: ANSWER}$

$\large\boxed{\sf{\green{d=0.17}}}$

$_____________________________________$

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