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elena-14-01-66 [18.8K]
3 years ago
14

NEED HELP LAST DAY TO SUMMIT

Mathematics
1 answer:
posledela3 years ago
5 0

Answer:

A 3.5

Step-by-step explanation:

To Break it down there 1 3/4 so to put in halve it would be 1/2 1/2 1/2 1/4 so u have 3 feet because 1/2 in is 3 feet then u have a 1/4 inch so that is half of a feet 1 + 1 + 1 + 1/2 is 3 1/2 converted to decimal is 3.5.

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I need help pleaseeeee?
ale4655 [162]

Answer:

48 sq in

Step-by-step explanation:

6 0
3 years ago
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Macy's is having a Fall sale where everything is 30% off. Angela has a coupon for an additional 10%
givi [52]

Answer:

$113.40

Step-by-step explanation:

The dress is $180 subtracted by 30% ($54) and is now $126

$126 - 10% which is $12.60 and is now $113.40

5 0
3 years ago
X^2 +105x-1050=1550<br><br> please help
bazaltina [42]

-x^2+105x-1050=1550
We move all terms to the left:
-x^2+105x-1050-(1550)=0
We add all the numbers together, and all the variables
-1x^2+105x-2600=0
a = -1; b = 105; c = -2600;
Δ = b2-4ac
Δ = 1052-4·(-1)·(-2600)
Δ = 625
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
<span><span>x1</span>=<span><span>−b−<span>Δ√</span></span><span>2a</span></span></span><span><span>x2</span>=<span><span>−b+<span>Δ√</span></span><span>2a</span></span></span>
<span><span>Δ<span>−−</span>√</span>=<span>625<span>−−−</span>√</span>=25</span> <span><span>x1</span>=<span><span>−b−<span>Δ√</span></span><span>2a</span></span>=<span><span>−(105)−25</span><span>2∗−1</span></span>=<span><span>−130</span><span>−2</span></span>=+65</span> <span><span><span>x2</span>=<span><span>−b+<span>Δ√</span></span><span>2a</span></span>=<span><span>−(105)+25</span><span>2∗−1</span></span>=<span><span>−80</span><span>−2</span></span>=+40</span></span>
8 0
4 years ago
Read 2 more answers
FIRST TO ANSWER GETS BRAINLIEST! A, B, and C are polynomials, where A = n, B = 2n + 6, and C = n2 – 1. What is AB – C in simples
denis23 [38]

Answer:

n^2+6n+1

Step-by-step explanation:

AB would be (n) * (2n + 6). We need to distribute the n, so we multiply the n by each term within the parentheses and add those products together:

AB = n(2n+6)=2n^2+6n

C is just n^2-1 , and we subtract this from 2n^2+6n:

2n^2+6n-(n^2-1)=2n^2+6n-n^2+1=n^2+6n+1

Thus, the answer is n^2+6n+1.

Hope this helps!

6 0
4 years ago
ABCD is a rectangle AB =15 centimeters AC = 25 cm Find The length of BC ​
pochemuha

Answer:

the answer is explained below (tap on the photo to view it fully)

8 0
2 years ago
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