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OLga [1]
3 years ago
15

Darren teaches a class of 25 students. He assigns homework 3 times a week, and each assignment consists of 12 problems. How many

problems must Darren correct each week?
Mathematics
1 answer:
Pie3 years ago
5 0
12 problems in each assignment and he assigns the assignments 3 times a week. He has 25 students. Therefor...

12 x 3 = 36

36 x 25 = 900

Answer: 900
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The sum of the square of the number and a second number is 42
AveGali [126]

Step-by-step explanation:

x+x squared =42. The square of the number is the number square. By my incredibly accurate guess and check strategy (works most of the time )6*6 = 36+6=42

3 0
3 years ago
How do you solve this equation?
Travka [436]
Exponentail thingies

easy, look at all them them, see that they have 5 in common?
rremember how esay it was to factor
ax^2+bx+c=0

now we have
5^(2x)-6(5^x)+5=0
remember that 5^(2x)=(5^2)^x or (5^x)^2
in other words, we can rewrite it as
1(5^x)^2-6(5^x)+5=0
if yo want, replace 5^x with a and factor
1a^2-6a+5=0
(a-1)(a-5)=0
a=5^x
(5^x-1)(5^x-5)=0
set each to zero

5^x-1=0
5^x=1
take the log₅ of both sides
x=log₅1


5^x-4=0
5^x=4
take the log₅ of both sides
x=log₅4

x=log₅1 and/or log₅4







second quesiton

same thing

1(2^x)-10(2^x)+16=0
factor
(2^x-8)(2^x-2)=0
set each to zero

2^x-8=9
2^x=8
x=3

2^x-2=0
2^x=2
x=1

x=3 or 1







first one
x=log₅1 and/or log₅4
second one
x=1 and/or 3


7 0
3 years ago
Please help I’m desperate
JulijaS [17]

Answer:

#2 is 512mm³

#3 is 120m³

Step-by-step explanation:

#2

8³ which # 8×8×8=512mm³

#3 v=bh

v=20×6

v=120m³

4 0
2 years ago
What is the distance from the origin to point P graphed on the complex plane below?
seraphim [82]

Answer:

b) square root of 29

Step-by-step explanation:

i just took it on edge

3 0
3 years ago
How many intersections are there of the graphs of the equations below? x + 5y = 6 3x + 30y = 36
ad-work [718]
<span>The answer is one. First, these are both straight lines, meaning they will have one intersection point. In order to find the intersections of these two lines, we must set them equal to one another. So x + 5y = 6 equals 3x + 30y = 36. When you solve the two equations together, you'll get one intersection point at (0 , 1.2).</span>
5 0
2 years ago
Read 2 more answers
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