MATHEMATICS HIGH SCHOOL

From midnight to 6:00 am, the temperature rose 1.05°C each hour. If the temperature at 6:00 am was -5.7°C, what was the temperature at midnight?

Answers

Answer 1
Answer:

Answer:

13.2 C

Step-by-step explanation:

6am the temp is at -5.7

from 6am to 12pm is 18 hours apart

so if the temp rises at 1.05 every hour you multiply 1.05*18= 18.9

18.9-5.7=13.2

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What is the slope between the points (7,4) and (-5, -6)?a.) 5/6
b.) -5/6
c.)6/5

Answers

Answer:

b.) -5/6

Step-by-step explanation:

m = -10/-12 = -5/-6

What is the product of (x+1) (x+4)

Answers

Answer:

x² + 5x + 4

Step-by-step explanation:

(x + 1) (x + 4)

apply the FOIL method

xx + (x * 4) + (1 * x) + (1 * 4)

xx + 4x + (1 * x) + (1 * 4)  

xx + 4x + 1x + 4

x² + 5x + 4
x(x+1) 1(x+4)
x^2+x+x+4
x^2+2x+4

What is slope (what does it mean) for anyone who answers they will get a brainliest

Answers

slope basically directs how steep a line is. it’s formula is rise/run of y2-y1/x2-x1

Answer:

rise over run

One of the most important things to understand about lines is the definition of slope. Slope is the 'steepness' of the line, also commonly known as rise over run. We can calculate slope by dividing the change in the y-value between two points over the change in the x-value.

Step-by-step explanation:

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x^2 + 3 = -4x

A. 1,3
B. -1,-3
C. 1,-3
D. -1, 3

Answers

Hello,

x²+4x+3=0
x=(-4-2)/2=-3  or x=(-4+2)/2=-1


Answer B (-1,-3)

A can of spaghetti has a diameter of 12 cm and a height of 16 cm. The can contains spherical meatballs, each with a radius of 3 cm, that take up 25% of the volume.How many meatballs are in the can?

Use 3.14 to approximate pi and express your answer as a whole number.

Answers

Hey there, the radius of the can is 1/2 of 12 cm=6 cm, the volume of the can is pi r^2h=Pi 6^{2}16=1809.5573cm3, Now, the volume of the meatball is 4/3 pi r^{3}=4/3 pi 3^{3}=113.09734, Then, 25% of the can=1809.5573/4=452.389325, The meatballs in area=25% of can over volume of meatballs=452.389325/113.09734=4 meatballs, Therefore, the answer is 4 meatballs.

A national retail chain has asked Susan to conduct a customer satisfaction analysis. How should Susan collect the data? A. by conducting a census of the customers who filed complaints B. by conducting a census of the customers who shop in the stores C. by taking a random sampling of the customers who filed complaints D. by taking a random sampling of the customers who shop in the stores

Answers

B. Would be your answer 
D would be the most reasonable answer. It would be unreasonable to do a census since a census is asking EVERY person who shops in the chain of stores.
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