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Tasya [4]
3 years ago
14

Expand and simplify (x-3)(x+5)

Mathematics
2 answers:
Trava [24]3 years ago
7 0

Answer:

x^2 + 2x - 15

Step-by-step explanation:

X × X + 5x - 3x - 3 × 5 =

x^2 + 5x - 3x - 3 × 5 =

X^2 + 2x - 15

also x^2 means x to the 2nd power

riadik2000 [5.3K]3 years ago
6 0

Answer:

x2+2x−15

Step-by-step explanation:

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(03.02 MC)The table shows the battery life of four different mobile phones:
MArishka [77]

Answer:

B = 25

Step-by-step explanation:

x/100×8.5=2.1

8.5x/100=2.1

8.5x=100×2.1

8.5x=210

8.5x/8.5=210/8.5

x=24.70

x=25

7 0
2 years ago
2. Jacob Thomas had a deposit of two checks: $341.79 and $17.96;
Novosadov [1.4K]

Answer:

$938.66

Step-by-step explanation:

Cheque = $341.79 + $17.96 =$359.75

<u>Cash</u>

Paper Currency:

=(35 X $1)+(17 X $5)+(44 X $10)

= 35+85+440

=$560

Coins

=(54 X $0.25)+(36 X $0.10)+ (32 X $0.05) + (21 X $0.01)

=13.5+3.6+1.6+0.21

=$18.91

Total Cash Deposit = Paper Currency + Coins

=$560+18.91

=$578.91

Therefore, Jacob's Total Deposit

= Total Cheque Deposit+ Total Cash Deposit

=$359.75+578.91

=$938.66

5 0
3 years ago
Let W be a point between points U and V on
Dennis_Churaev [7]
So if point W is somewhere on the line segment UV, then the equation UV = UW + WV is true.

UV = UW + WV\\(13)=(2y-9)+(y-5)\\13=2y-9+y-5\\13=(2y+y)+[(-9)+(-5)]\\13=3y-14\\27=3y\\\\y=9
4 0
3 years ago
How much interest is earned on a principal of $2.58 invested at an interest rate of 5% for four years?
pochemuha

Answer:

Step-by-step explanation:

The formula for simple interest is

prt = I, where p is the initial investment, r is the interest rate in decimal form, t is the time it's invested for, and I is the interest earned. We multiply the p, the r, and the t together to get I. For us that looks like this:

(2.58)(.05)(4) = I and

I = .516 or 52 cents.

7 0
3 years ago
Read 2 more answers
Trevor used the time-to-pay-off formula to calculate how many payments it
boyakko [2]
It’s A took this test before
5 0
3 years ago
Read 2 more answers
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