1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Y_Kistochka [10]
3 years ago
12

X(x - 2) = 4 please help

Mathematics
1 answer:
vazorg [7]3 years ago
7 0

Answer:

x = 1 +  \sqrt{5} x = 1 -  \sqrt{5}

You might be interested in
All the 5th graders at Lincoln Elementary School will go on a field trip to the science museum. Counting all the children, teach
user100 [1]

The answer must be a whole number because for example how are you suppose to fit half a child on a bus that can hold 44 people when it already holds that amount.

It will always be a whole number because if there are several left over students they will be put in another bus with more empty seats.

3 0
2 years ago
A bacteria culture starts with 100 bacteria and doubles in size every half hour.
taurus [48]

Answer:

y=25600

y=100(2)^{2t}

y=252

Step-by-step explanation:

A bacteria culture starts with 100 bacteria and doubles in size every half hour.

y=100(2)^{2x}

where x represents the number of hours

(a) t= 4 hours

Plug in 4 for t  and find out the number of bacteria y

y=100(2)^{2 \cdot 4}\\y=25600

25600 bacteria

y=100(2)^{2t}

convert 40 seconds into hour

40 divide by 60 =2/3

y=100(2)^{2\frac{2}{3} }\\y=100(2)^{\frac{4}{3} }\\\\y=252

The graph is attached below

4 0
3 years ago
The scale on a map is 1 in : 50 mi . The actual distance between two cities is 350 miles
son4ous [18]
On a map, they would be 7 inches apart, if that's what you're asking.
7 0
3 years ago
How do you do this? with work.
Rashid [163]

Answer:

i don't know

Step-by-step explanation:

so i have 20 the answer i thin

7 0
3 years ago
Verify seca(1-sina)(seca+tana)=1
beks73 [17]
Seca(1-sina)(seca+tana)=1
Left hand side
=(1-sina) (seca +tana) / cosa
=seca +tana - sinaseca - sinatan / cosa
=seca + tana -tana -(sin^2a/cosa) / cosa
=(1/cosa - sin^2a/cosa) / cosa
= (1-sin^2a / cosa) / cosa
= (1-sin^2a)/ (cos^2a)
=1 (verified)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is an extraneous solution of square root 4x+41 = x+5
    5·1 answer
  • Three times a number plus 16
    5·1 answer
  • Angles L and M are supplementary. What is the sum of
    5·2 answers
  • Which statement describing ratios is true?
    8·1 answer
  • There are 200 student in middle school and three fifths of them are girls how many are boys?
    9·2 answers
  • If Cara works 14 hours, she earns $84. If she works 19 hours, she earns $114. Let y represent the total amount of money that Car
    11·1 answer
  • Need help with this please?
    13·1 answer
  • Titus works at a hotel. Part of his job is to keep the complimentary pitcher of water at least half full and always with ice. Wh
    8·2 answers
  • 1. Ellen said she spent half her money for lunch and half of what was left for a movie. She now has $1.20. How much did she spen
    8·1 answer
  • I'm a brainy plus member that shows it doesn't expire until 3/2022, but when I take a picture and click on answer it won't give
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!