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Alja [10]
3 years ago
9

What is the equation for the slope of a line

Mathematics
1 answer:
Tema [17]3 years ago
3 0

Answer:

y=mx + b

Step-by-step explanation:

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A stained glass window is going to be installed in a semi-circular opening, which is above a 30 inch wide door. If the stained g
xenn [34]
The answer is <span>$494.55</span>

Let's first imagine a circle and calculate its area and then reduce it in half for the area of a semi-circle. Since this opening is above <span>a 30-inch wide door, the circle will have a diameter of 30 inches.
The area of the circle (A) is:
A = </span>π · r²
where:
π = 3.14
r - radius: r = diameter ÷ 2 = 30 ÷ 2 = 15 inches

So, the area of the circle is:
A = π · r² = 3.14 · 15² = 706.5 inches²

The area of the semicircle is half of the area of the circle:
A1 = A ÷ 2 = 706.5 ÷ 2 = 353.25 inches²

Since  the stained glass window costs $1.40 <span>per square inch, for 353.25 square inches it will cost $494.55:
353.25 square inches * 1.40 $/square inch = $494.55</span>
4 0
3 years ago
The seventh grade students are having an end-of-year party in the school cafeteria. There are 754 students attending the party.
valina [46]

Answer:

Determine the number of tables by dividing 754 by 6. If there is a remainder, the answer will need to be rounded tenths or hundredths . There is a remainder, so 125.6 tables are needed.

Step-by-step explanation:

5 0
3 years ago
Solve for W <br> 4w^2+9w= -2
7nadin3 [17]

Answer:

w_1=-\frac{1}{4},w_2=-2}

Step-by-step explanation:

4w^2+9w=-2

4w^2+9w+2=0

w^2+9w+8=0

(w+1)(w+8)=0

(4w+1)(w+2)=0

w_1=-\frac{1}{4},w_2=-2}

3 0
2 years ago
Which type of study best describes the following research most likely to be done? A teacher wants to know how fast all her stude
Yakvenalex [24]

Census

_____________________________________

<em>*100% CORRECT ANSWERS</em>

Question 1

Which type of study best describes the following research most likely to be done?

A researcher is testing out a brand new type of safety suit for fires and is trying to test the maximum threshold of the suit.

Simulation Study  

Question 2

Which type of study best describes the following research most likely to be done?

A test is being conducted on a new medicine that is supposed to heal cuts faster. One group is given the actual medicine in a gel type of ointment to apply to the cuts. The second group is given just regular Vaseline that looks like the medicine but has not benefit to put on the cut. The results are then compared.  

Experimental Study  

Question 3

Which type of study best describes the following research most likely to be done?

A researcher is wanting to research the after effects of plant growth after a nuclear reactor meltdown and decides to study plants within a 50 mile radius of the  power plant that had a catastrophic melt down in 2011.  

Observational Study  

Question 4

Which type of study best describes the following research most likely to be done?

A study is being conducted by an insurance actuary and he wants to determine how often American teen drivers that are on the honor roll get into wrecks.  

Sampling  

Question 5

Which type of study best describes the following research most likely to be done?

A teacher wants to know how fast all her students for a particular period can complete a multiplication quiz to check their mental math abilities. So, all of her students are tested on a computer and the time of each and every student is recorded.  

Census

6 0
3 years ago
Identifying Cross Sections of Solids
NARA [144]
Prisms is the answer for the question
7 0
2 years ago
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