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tamaranim1 [39]
3 years ago
13

PLEASE HELP I GIVE THANKS

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
8 0
Well for 3.  you use the Pythagorean theorem to say that 28^2 - 18^2= x^2 so 21.4  and for 4. the Pythagorean theorem says a^2 + b^2 = c^2 with c being the hypotenuse of any right triangle so the sums of the two smaller squares make the sum of the larger square making the answer b 
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-6.2 - 12.6x = 5.8 - 7.8x
Sav [38]

Answer:

x = -2.5

Step-by-step explanation:

Step 1: Write equation

-6.2 - 12.6x = 5.8 - 7.8x

Step 2: Solve for <em>x</em>

<u>Add 12.6x on both sides:</u> -6.2 = 5.8 + 4.8x

<u>Subtract 5.8 on both sides:</u> -12 = 4.8x

<u>Divide both sides by 4.8:</u> x = -2.5

Step 3: Check

<em>Plug in x to verify if it's a solution.</em>

-6.2 - 12.6(-2.5) = 5.8 - 7.8(-2.5)

-6.2 + 31.5 = 5.8 + 19.5

25.3 = 25.3

7 0
3 years ago
Kate is taking a short break and wants to pick up lunch from her favorite drive-thru restaurant, Burger Shack. There are two loc
Veronika [31]

Answer:

B.) Beachside Sqaure

Step-by-step explanation:

The reason why is because, you have to look at her intentions and the time frame she wants to wait for food at these restaurants. Beachside Sqaure has less times they have made her wait for her food more than 10 minutes, so that would be their advantage.

6 0
2 years ago
An item costs $440 before tax, and the sales tax is $13.20.
Ahat [919]

Answer:

3%

Step-by-step explanation:

13.2 / 440 = 0.03

0.3*100 = 3%

3 0
2 years ago
Calc derivatives help
user100 [1]

Answer:

x^4 and 4

Step-by-step explanation:

The formula for finding the derivative of a function includes the following:

f(a+h) - f(a)

and in this case we have

f(4+h) - f(4) => f(4 + h)^4 - 4^4.

Comparing this to

f(a + h) - f(a), we see that a must be 4 and f(x) must be x^4.

6 0
3 years ago
If you need points, answer my question:<br><br><br> What is the smallest odd number?
liraira [26]

Answer:

3

Step-by-step explanation:

3 is the Smallest Odd Prime Number.

1 is the smallest one digit odd number.

8 0
2 years ago
Read 2 more answers
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