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Luden [163]
3 years ago
10

In which step did karina make an error

Mathematics
1 answer:
DedPeter [7]3 years ago
3 0
Hi there!

Ok i would love to answer you but do you have answer choices, or the other part of the question or a image?

~Jada
You might be interested in
How many solutions does the equation −5a + 5a + 9 = 8 have?
faust18 [17]

Answer: the answer will be none

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
1. The sum of a number and ten.
ale4655 [162]
Answer: X+10

X+10
Explanation:
Break down the information given to you to try and identify what the algebraic expression must looks like. You know that you're dealing with
a sum
→
this means that you are adding something, so you're going to use the
+
sign;

of a number
→
this means that you're dealing with a variable. The most common notation for a variable is
x
.

and 10
→
this is simply an integer that must appear in the algebraic expression along the variable
x
.

So, put all this together to get
x
+
10
You're adding an unknown number,
x
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10
3 0
3 years ago
Read 2 more answers
Solve for x: one over five (5x + 12) = 18 (2 points)
Usimov [2.4K]
If you mean the equation 1/5 (5x +12) =18 then your answer would be x=15.6 or in the exact form of 78/5

Explanation : Start off with distributive property 1/5•5x and 1/5 •12, your equation should end up with 1x +2.4 =18 continue by using the 2.4 and doing the opposite, you will have 1x+2.4-2.4=18-2.4, after calculation you will have 1x=15.6 ,you can finish there or you can divide the 15.6 by one witch is still 15.6 , therefore getting your answer that is x=15.6
8 0
3 years ago
The surface area, A, of a cylinder is given by the formula A = 2 Trh + 2nr, where ris the radius and h is the height
lord [1]

Answer:

Area = 87.9646  sq. units  from A = 28*π  sq. units.

However I cannot see this in your answer list, since the numbers look all jumbled.  Choice A. looks close to it, since there is a 28...

Step-by-step explanation:

We have a cylinder with height h = 5

radius = 2

We want the surface area of this cylinder.

A = (circumference)*h  + 2*(pi)*r^2

A = ( 4*π)*5   + 2*π*(2^2)

A = 20π + 8π  =  28 π   square units

A = 87.9646 sq.. units

7 0
3 years ago
❤❤❤❤help please ❤❤❤❤❤❤
Alenkasestr [34]
Gg easy

point slope:
for opint (x1,y1) and slope m
y-y1=m(x-x1)

so example
(1,2) and slope 3
y-2=3(x-1)



slope intercept
y=mx+b
m=slope
b=y intercept
if slope is 2 and y intercept is 3
y=2x+3


standard form
Ax+By=C
easies of all, just put randome numbers

2x+3y=4
A=2
B=3
C=4
4 0
3 years ago
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