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erastova [34]
4 years ago
10

Multiply: (x – 4)(x + 5)

Mathematics
1 answer:
denpristay [2]4 years ago
3 0

Answer:

D.  x2 + x - 20.

Step-by-step explanation:

(x – 4)(x + 5).

= x(x + 5) -4(x + 5).

= x2 + 5x – 4x – 20.

= x2 + x - 20.

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Factor −1/4 out of −1/2x−5/4y..ㅤ
hammer [34]

Answer:

  • - 1/4 (2x + 5y)

Step-by-step explanation:

Divide each term by - 1/4 first

  • -1/2x ÷ (- 1/4) = 1/2x × 4 = 2x
  • -5/4y ÷ (- 1/4) = 5/4y × 4 = 5y

Now facor out - 1/4

  • - 1/2x - 5/4y =
  • - 1/4 (2x + 5y)
3 0
2 years ago
BRAINLIEST FOR HELP PLZ
Kisachek [45]

Answer:

1,395 sq feet

Step-by-step explanation:

lets start with the area of the green cube b×h. 15×15=225. 225×5= 1125. I got five because there are 5 visible faces on the cube. to find the area of a triangle you use the formula 1/2 bh 9×15= 135 multiply that by 2 instead of one half because you have four triangular faces. add your areas together and you get 1395

3 0
3 years ago
Read 2 more answers
If \$1000 is deposited into an account that earns 3.25\% simple interest per year, how much money will be in the account after 7
Andrei [34K]
<h3>Answer: 1227.50 dollars</h3>

======================================================

Explanation:

The simple interest formula to use is

A = P*(1+r*t)

where,

A = account value after t years (original deposit + interest)

P = 1000 = amount deposited (principal)

r = 0.0325 = annual interest rate in decimal form

t = 7 = number of years

So,

A = P*(1+r*t)

A = 1000*(1+0.0325*7)

A = 1227.50

Side note: you've earned A-P = 1227.50-1000 = 277.50 dollars in total interest

8 0
3 years ago
Which shows the equation y + 4 = 2(x – 1) written in standard form? –2x + y = –5 –2x + y = –6 y = 2x – 6 y = 2x – 5
Cloud [144]
Y + 4 = 2(x - 1)
y + 4 = 2x - 2
-2x + y = -2 - 4 = -6
-2x + y = -6
3 0
3 years ago
Round your answer to two decimal places log 6e
Andru [333]

Solution: We know that e is numerical constant and is equal to 2.71828.

Therefore log( 6 x 2.71828) = 1.21

4 0
3 years ago
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