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GuDViN [60]
3 years ago
5

What is the answer to this?

Mathematics
2 answers:
viktelen [127]3 years ago
7 0

Answer:

17

Step-by-step explanation:

-2(-2) + 9(5) = 49

\sqrt{49} = 7

10 + 7 = 17

rodikova [14]3 years ago
3 0
Answer should be 16.40 (simplified), hope this helped!
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. A system may become infected by some spyware through the internet or e-mail. Seventy percent of the time the spyware arrives v
dem82 [27]

Answer:

This spyware is detected 66% of the time.

Step-by-step explanation:

We have these following percentages:

70% of the time, the spyware arrives via the internet, and in this case, is detected 60% of the time.

30% of the time, the spyware arrives via e-mail, and in this case, is detected 80% of the time.

What percentage of times is this spyware detected

Sum of 60% of 70%(arrived via spyware, detecte) and 80% of 30%(arrive via e-mail, detected). So

0.6*0.7 + 0.8*0.3 = 0.42 + 0.24 = 0.66

This spyware is detected 66% of the time.

3 0
3 years ago
What is 45% of 78? Plaese help or else idk i just needed to type more.
zepelin [54]
78×45/100
=35.1. As a result, 35.1 is 45% of 78. Hope it help!
3 0
4 years ago
Read 2 more answers
the equation of a line is y=-1/2x-2. what is the equation of the line that is perpendicular to the first line and passes through
Alexxandr [17]
Perpendicular means that the slopes are negartive inverses, aka
slope1 times slope2=-1

y=mx+b
slope=m

y=-1/2x-2
slope=-1/2

we need to find negative inverse
-1/2 times what=-1
answer is 2

y=2x+b
input the point (2,-2) to find b
(x,y)
(2,-2)
-2=2(2)+b
-2=4+b
minus 4 from both sides
-6=b
y=2x-6

the equtaion is y=2x-6
8 0
3 years ago
Determine what number is 30% of 400.
Darya [45]

Answer:

120

Step-by-step explanation:

Is means equals and of means multiply

W = 30% * 400

Change to decimal

W = .30*400

W = 120

6 0
3 years ago
Read 2 more answers
How can you model geometry figures to solve real world problems
Strike441 [17]
You can model geometry for making buildings and sky scrapers, also stores.
6 0
3 years ago
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