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jeka94
3 years ago
15

Please help ! I’ll give brainliest!

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
5 0
I believe it is 16 since if you do 21-5 it is 16 :)
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What’s the answer?? Pls help
Artemon [7]

Answer:

11

Step-by-step explanation:

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8 0
3 years ago
Suppose that a phone that originally sold for $800 loses 3/5 of its value each year after it is released.
liubo4ka [24]

Answer:

It will be worth $128.

Step-by-step explanation:

After 1 year, 3/5 of 800 is 480 which leaves the value at $320, and then after 2 years, 3/5 of 320 is 192. 320-192 leaves the value at $128.

3 0
3 years ago
The answers x^1 or x^0<br> How??
pickupchik [31]
Remember a^(m) x a^(n) =  a(m+n) & √a = a^(1/2)


===> x^(1/2 -3/2)+x(1/2 -1/2) ====> x^(-1)+x^(0) (any number Exp 0 =1)
X^(-1) +1 ===> 1/x +1 or (1+x)/x


6 0
3 years ago
A gallon of stain is enough to cover 200 square feet of decking. Bradley has two areas of decking he would like to cover with st
Pani-rosa [81]

The expression that we need to get is:

N = \frac{(23)*(10.4) + (10.5)*(7.2)}{200}

So the correct option is the second one.

<h3>Which expression gives the number of gallons of stain Bradley will need?</h3>

We know that 1 gallon is enough to cover 200 ft².

We have two rectangular areas, one of:

23 feet by 10.4 feet, and other of 10.5 feet by 7.2 feet.

Then the total area is:

A = (23 ft)*(10.4 ft) + (10.5ft)*(7.2 ft)

The number of gallons needed is given by the quotient between the area that we want to cover, and the area that covers one gallon, so the expression is:

N = \frac{(23ft)*(10.4ft) + (10.5ft)*(7.2ft)}{200ft^2} \\\\N = \frac{(23)*(10.4) + (10.5)*(7.2)}{200}

So the corerect option is the second one.

If you want to learn more about algebraic expressions:

brainly.com/question/4344214

#SPJ1

7 0
2 years ago
10 points!!!!!?!!!! Tyrone wants to know how much wrapping paper is needed to cover a box with the dimensions shown
Leviafan [203]

Answer: B.54 Square inches

Step-by-step explanation:  Surface Area

= 2(lb + bh + lh)

= 2(6 x 3 + 3 x 1 + 6 x 1)

= 2(18 + 3 + 6)

= 2(27)

= 54 square inches

7 0
3 years ago
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