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Radda [10]
3 years ago
13

Solve for b. -11b+ 7 = 40 b=0

Mathematics
1 answer:
jeka57 [31]3 years ago
6 0

Answer:

-11b + 7 = 40

Subtract 7 on both sides

-11b = 33

Divide by -11

b = -3

but if b=0 b is already solved unless you meant b=x

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How much money would produce $70 as simple interest at 3.5% per<br> annum?
yKpoI14uk [10]

Answer:

$2000

Step-by-step explanation:

Simple Interest = $70

Rate = 3.5%

Time = 1

Principal = ?

Simple Interest = (Principal × Rate × Time)/100

Principal = (Simple Interest × 100)/(Rate × Time)

Principal = (70 × 100)/(3.5 × 1)

Principal = 7000/3.5

Principal = 14000/7

Principal = 2000

7 0
3 years ago
The number of potholes in any given 1-mile stretch of freeway pavement in Pennsylvania has a Normal distribution. This distribut
Iteru [2.4K]

Answer:

83.85% of 1-mile long roadways with potholes numbering between 22 and 58

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 49

Standard deviation = 9

Using the Empirical Rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 22 and 58?

22 = 49 - 3*9

So 22 is three standard deviations below the mean.

Since the normal distribution is symmetric, 50% of the measures are below the mean and 50% are above the mean.

Of those 50% which are below the mean, 99.7% of those are within 3 standard deviations of the mean, that is, greater than 22.

58 = 49 + 9

So 58 is one standard deviation of the mean.

Of those which are above the mean, 68% are within 1 standard deviation of the mean, that is, lesser than 58.

Then

0.997*0.5 + 0.68*0.5 = 0.8385 = 83.85%

83.85% of 1-mile long roadways with potholes numbering between 22 and 58

5 0
3 years ago
Please help help help help​
amid [387]

Answer:

option b is the correct i mean 10

7 0
3 years ago
Read 2 more answers
Help!!! Please 20 points!!
drek231 [11]

Answer:

$12.5 per hour

8 0
3 years ago
The figure below shows the ideal pattern of movement of a herd of cattle, with the arrows showing the movement of the handler as
geniusboy [140]

Based on the theory, the distance from the starting point to the return point = Arc length = 109.9 feet.

<h3>What is the Length of an Arc?</h3>

The arc length of a circle can be calculated with the radius and central angle using the arc length formula.

Arc length = ∅/360 × 2πr

Since the sector formed is a quarter circle, then ∅ = 90°.

Raidus (r) = 70 ft

Distance from the starting point to the return point = arc length.

Arc length = ∅/360 × 2πr =  90/360 × 2π(70)

Arc length =  109.9 feet

Therefore, based on the theory, the distance from the starting point to the return point = Arc length =  109.9 feet.

Learn more about the arc length on:

brainly.com/question/2005046

#SPJ1

6 0
2 years ago
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