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BigorU [14]
3 years ago
7

Help plz I've been stuck

Mathematics
2 answers:
stepladder [879]3 years ago
6 0

Answer:

The answer is D. (\frac{1}{5} )^{2}

Step-by-step explanation:

5^{4} *(5^{-3} )^{2}

simplify the expression by multiplying

5^{4} *5^{-6}

calculate the product

5^{-2}

express with a positive exponent using a^{-n} =\frac{1}{a^{n} }

\frac{1}{5^{2} }

skad [1K]3 years ago
3 0

{5}^4 * {(5^{-3} )}^2

5^{4} * 5^{-6}  = 5^{-2}

5^{-2} = \frac{1}{5^{2} } = {(\frac{1}{5})}^2

Alternative D)

See exponent/power properties for help.

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100 students went on a field trip. Six busses were filled and 10 students traveled in
kaheart [24]

Answer:

15 students in each bus.

Step-by-step explanation:

Subtract 10 from 100 and you get 90 then divide 90 by 6 and that gives you how many students in each bus

7 0
2 years ago
Slove all of it please 100 points
Katyanochek1 [597]

Answer:

Step-by-step explanation:

5x+y-7=0 isolate y

y=-5x+7 (m=-5,b=7)

9x+7y-14=0

7y=14-9x ( divide both sides by 7)

y=-9x/7 +14/7

y=-9/7 + 2  (m=-9/7, b=2)

x+y=1000

4x+3y=3600 ( multiply the first equation by 3 to eliminate y)

3x+3y=3000

4x+3y=3600 ( subtract the two equations)

3x+3y-(4x+3y)=3000-3600

3x+3y-4x-3y=-600

-x=-600

x=600 ( substitute x in the equation)

x+y=1000

600+y=1000

y=1000-600=400

check : x+y=1000 , (600+400)=1000

check : 4x+3y=3600 = (4(600)+3(400))=2400+1200=3600

how many tickets are sold :

adults x=600/4=150

kids (y)=400/3=133 tickets+1 dollars left

unless( x represent kids then x=200, y represent adult = 100)

4 0
3 years ago
Read 2 more answers
The diagram shows an awning on the front of a building. The top of the awning makes a 40° angle with the building. The base of t
slamgirl [31]

Answer:

Height of the awning = 9.52 feet

Step-by-step explanation:

For better understanding of the solution, see the attached diagram of the problem :

According to the figure, AB is the height of the awning

Now, the base of awning will be perpendicular to the building

⇒ m∠ABC = 90°

In ΔABC, By using angle sum property of a triangle

m∠ABC + m∠ACB + m∠BAC = 180°

⇒ m∠ACB = 50°

Now,\tan 50=\frac{Perpendicular}{Base}\\\\tan 50=\frac{AB}{8}\\\\\implies AB=8\times \tan 50\\\\\bf\implies AB=9.52 \textbf{ feet}

Hence, Height of the awning = 9.52 feet

5 0
3 years ago
Subtract 11a2+42a-6 from 14a2-24a+7
Vikki [24]
14a^2 - 24a + 7 - (11a^2 + 42a - 6)...distribute the negative thru the parenthesis

14a^2 - 24a + 7 - 11a^2 - 42a + 6 =
3a^2 -66a + 13 <==
6 0
3 years ago
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The expression -7y is a <br> term<br> constant<br> variable
Sloan [31]

Answer:

Step-by-step explanation:

The expression -7y is a  

term variable for : y

8 0
3 years ago
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