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3 years ago

If an answer for this question is not an integer, enter it as a decimal rounded to the hundredths place.

Mathematics

1 answer:

kiruha [24]3 years ago

4 0

Answer:

2.56

Step-by-step explanation:

Monday: 2 * 2.21 = 4.42

Tuesday: 4.42 + 0.39 = 4.81

Wednesday: 4.81 - 1.76 = 3.05

Thursday: 3.05 - 1/5 * 3.05 = 3.05 - 0.61 = 2.44

Friday: 2.44 + 0.12 = 2.56

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Can someone answer this

bezimeni [28]

Answer:

Step-by-step explanation:

x 6 a

8 48 c

-4 b 20

Let the unknown numbers of the multiplication grid are a, b and c.

1). 6 × 8 = 48

2). (-4)×6 = b

b = -24

3). (-4) × a = 20

a = -5

4). 8 × a = c

8 × (-5) = c

c = -40

Therefore, missing in the given multiplication grid are,

x 6 -5

8 48 -40

-4 -24 20

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3 years ago

A firecracker shoots up from a hill 160 feet high, with an initial speed of 90 feet per second. Using the formula H(t) = −16t2 +

Masja [62]

When the firecracker hits the ground, H(t) = 0.0 = -16t^2 + 90t + 160 Using the quadratic formula,t = (-90 +- sqrt(90^2 - 4(-16)(160))) / 2(-16)t = -1.42 ort = 7.04

The negative time is extraneous. Therefore,t = 7.04 s.

Seven Seconds is your answer!

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3 years ago

Read 2 more answers

A researcher was interested in comparing the salaries of female and male employees of a particular company. independent random s

Aneli [31]

Answer:

Based on given data, we can say with 95% confidence that the female employees at this company average between $110 less and $10 less per week than the male employees.

Step-by-step explanation:

Sample 1 for female

Sample 2 for male

Confidence = 90%

Difference in mean weekly salary of all female employees and the mean weekly salary of all male employees = µ₁- µ₂

So based on above given data, we can say with 95% confidence that the female employees at this company average between $110 less and $10 less per week than the male employees.

5 0

3 years ago

Wanda starts with $1200 and deposits $40 per week. Zelda starts with $700 and deposits $50 per week. When will Wanda have the sa

Masja [62]

Let the number of weeks to have same amount = x Then:-

1200 + 40x = 700 + 50x
1200 - 700 = 50x - 40x

10x = 500
x = 50
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4 0

3 years ago

Please help me. this is hard

allochka39001 [22]

Since it is a square that means each side is equal.
The perimeter is 24, and since there is four sides we would divide it by four to find the length of each side.

24/4 = 6

Each side is 6.
By looking at the picture, one side of the square, is the length of the radius.

The radius of the square is 6.

The only thing left to do is to find the circumference.
The circumference formulas are:

C = $\pi$ d
C = 2 $\pi$ r

We can use the first one Diameter x pi (3.14)
To find the diameter we would just multiply the radius by two.

6 x 2 = 12

Diameter = 12

So multiply it by pi

12 x 3.14 = 37.68
or D 12 $\pi$

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3 years ago