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borishaifa [10]
3 years ago
7

Evaluate 24−8x when x=−2

Mathematics
2 answers:
Rudiy273 years ago
8 0
Your answer is gonna be 8
morpeh [17]3 years ago
8 0

Answer:

8

Step-by-step explanation:

8

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A designer wants to create a whisper chamber in the shape of an ellipse. He has a warehouse space with a longest length of 50 ya
Zanzabum

Answer:

22.9 yards

Step-by-step explanation:

Since b² = a² - c² where a = vertex of major axis, 2a = 50 yards the length of the major axis. So , a = 50/2 = 25 yards. c = focus of chamber = 10 yards from center and b = vertex of minor axis.

So, b = ±√(a² - c²)

= ±√(25² - 10²)

= ±√(625 - 100)

= ±√525

= ±22.91 yards

≅ ± 22.9 yards

Since b = length of minor axis from center of chamber = 22.91 yards. So, he should build the whisper chamber 22.9 yards out from the center of the chamber.

7 0
3 years ago
A. 3<br> B. 1/3<br> C. -3<br> D. -1/3
guapka [62]

Answer:

D

Step-by-step explanation:

This is a negative slope since it is going from left to right so that leaves you with c or d.

The slope is rise over run so in this case the rise is 1 and the run is -3 since its going left.

This leads you to -1/3

Hope this helped :)

5 0
2 years ago
When you receive a loan to make a purchase, you often must make a down payment in cash. The amount of the loan is the purchase c
emmainna [20.7K]
Summarizing the problem, there are three terms that you have to deal with: purchasing cost, down payment and loan. So, you would expect that the answer would contain these quantities. Among them, the unknown is the purchasing cost, therefore, we denote this as x. 

<span>Based on the statement, "The amount of the loan is the purchase cost minus the down payment", we can formulate an equation for this. 

Amount of Loan = x - Down payment

This will be our working equation. Moving on, the down payment was mentioned to be equal to </span>$1500. The lean received is equal to <span>$2600. Substituting these values to the working equation, we can now determine the value of x.

2600 = x - 1500

Solving for x by transposing it to one side,

x = 2600-1500
x = $1,100

Therefore, the purchasing cost of the car is $1,100.</span>
6 0
3 years ago
The inner square has sides of 3 inches and the outer square has sides
EastWind [94]
X is the hypotenuse of an isosceles triangle. The length of the sides are the difference of the inner and outer squares divided by 2. Which means that the sides of the triangle is 1.5 inches. Using that information, the length of X can be deduced to be 2.12 inches using Pythagoras theorem
7 0
3 years ago
What is the greatest common factor (GCF) of 81 and 18? A. 3 B. 81 C. 9 D. 162
SCORPION-xisa [38]

Answer:

C. 9

Step-by-step explanation:

81 = 9 x 9

18 = 9 x 2

so the greatest common factor (GCF) of 81 and 18 : 9

Answer is C. 9

8 0
3 years ago
Read 2 more answers
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