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Fed [463]
3 years ago
14

R(x) = (500 + ax) (50 - bx)

Mathematics
1 answer:
o-na [289]3 years ago
4 0

Answer:

x

=

−

500

b

−

50

a

+

R

±

√

250000

b

2

+

2500

a

2

−

100

a

R

+

1000

b

R

+

R

2

+

50000

a

b

2

a

b

Step-by-step explanation:

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Lawrence drives the same distance monday through Friday commuting to and from work. Last week Lawrence drove 25 miles on the wee
alexira [117]

Answer:

60 - 25 = 35

35 / 7 = 5

Lawrence drives 5 miles each day commuting to and from work.

8 0
4 years ago
Read 2 more answers
Triangle A B C is shown. Angle A C B is a right angle. An altitude is drawn from point C to a point on side A B to form a right
mars1129 [50]

Answer:

BC=15\ units

Step-by-step explanation:

see the attached figure to better understand the problem

In the right triangle ABC

Applying the Pythagorean Theorem

AB^2=AC^2+BC^2

substitute the given values

17^2=8^2+BC^2

solve for BC

BC^2=17^2-8^2

BC^2=225

BC=15\ units

5 0
3 years ago
Read 2 more answers
With individual lines at its various windows, a post office finds that the standard deviation for normally distributed waiting t
anastassius [24]

Answer:

H0 : σ²= 7.2²

H1 : σ² < 7.2

We can conclude that the mean waiting time of customers vary less, Than 7.2 minutes.

Step-by-step explanation:

H0 : σ²= 7.2²

H1 : σ² < 7.2²

The test statistic :

X² = [(n - 1)*s² ÷ σ²]

s² = 3.5

n = sample size = 25. ; s²

X² = [(25 -1)*3.5² ÷ 7.2²

X² = (24 * 3.5^2) / 7.2^2

X² = 5.67

Pvalue from Chisquare statistic :

P(X² < 5.67) = 0.000042

Pvalue < α ; we reject the Null.

Hence, we can conclude that the mean waiting time of customers vary less, Than 7.2 minutes.

5 0
3 years ago
Eli started saving money in his empty piggy bank. He inserted $1 on every Monday, $2 on every Tuesday, $3 on every Wednesday, $4
Tanzania [10]

Answer:

Tuesday

Step-by-step explanation:

Given:

Monday: $1

Tuesday: $2

Wednesday: $3

Thursday: $4

Friday: $5

Saturday: $6

Sunday: $7

And after 24 days he had $93

____

So lets convert 24 days into weeks. A week has 7 days we divide 24/7 and get 3.42857 weeks or just have it as 3 weeks and 3 days.

24 days = 3 weeks and 3 days

Now we want to know how much does Eli make in 1 week, we add all the numbers 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28

Eli makes $28 in one week. And (28x3) in three weeks which is $84.

Now that we know that Eli made $84 in three weeks, we have three days left - now we calculate the difference.

93 - 84 = 9

Now these 9 dollars are split into three days. This means he started on Tuesday since Saturday is $7 and Monday is $1 and that sums it up to $8 and the first dollar was placed in his piggy bank on a Tuesday.

6 0
3 years ago
What is the equation, in slope-intercept form, of the line that contains the points (1, -4) and (2, 1)?
stepan [7]

Answer

y-1=5(x-2)

Step-by-step explanation:

1-(-4) =5

2-1=1

y/x = 5/1 =5

(2,1)

y-1=5(x-2)

6 0
4 years ago
Read 2 more answers
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