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
omeli [17]
3 years ago
5

If the point (−1, −5) is reflected across the x-axis, what is the location of the new point? A) (5, 1) B) (1, 5) C) (1, −5) D) (

−1, 5)
Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0

Answer:

D (-1, 5)

Step-by-step explanation:

In reflection along the x-axis,

x-coordonate remains unchanged and y-coordinate gets multiplied by -1

You might be interested in
I need help, someone please explain. I don't need the answers i just don't get it.
shepuryov [24]
What answers well whats the question?
4 0
3 years ago
What distance is shorter 3/4 or 2/4
dolphi86 [110]
2/4 is shorter distance. I think. Hope its helps !!!!!!!
8 0
3 years ago
Read 2 more answers
Which expression represents the number 2i4−5i3+3i2+−81‾‾‾‾√ rewritten in a+bi form?
vichka [17]

Answer:

The expression -1+14i represents  the number 2i^4-5i^3+3i^2+\sqrt{-81} rewritten in a+bi form.

Step-by-step explanation:

The value of i is i=\sqrt{-1}[tex] or [tex]i^{2}=-1[\tex].Now [tex]i^{4} in term of i^{2}[\tex] can be written as, [tex]i^{4}=i^{2}\times i^{2}

Substituting the value,

i^{4}=\left(-1\right)\times \left(-1\right)

Product of two negative numbers is always positive.

\therefore i^{4}=1

Now i^{3} in term of i^{2}[\tex] can be written as, [tex]i^{3}=i^{2}\times i

Substituting the value,

i^{3}=\left(-1\right)\times i

Product of one negative  and one positive numbers is always negative.

\therefore i^{3}=-i

Now \sqrt{-81} can be written as follows,

\sqrt{-81}=\sqrt{\left(81\right)\times\left(-1\right)}

Applying radical multiplication rule,

\sqrt{ab}={\sqrt{a}}\sqrt{b}

\sqrt{\left(81\right)\times\left(-1\right)}={\sqrt{81}}\sqrt{-1}

Now, \sqrt{\left(81\right)=9 and \sqrt{-1}}=i

\therefore \sqrt{\left(81\right)\times\left(-1\right)}=9i

Now substituting the above values in given expression,

2i^4-5i^3+3i^2+\sqrt{-81}=2\left(1\right)-5\left(-i\right)+3\left(-1\right)+9i

Simplifying,

2+5i-3+9i

Collecting similar terms,

2-3+5i+9i

Combining similar terms,

-1+14i

The above expression is in the form of a+bi which is the required expression.

Hence, option number 4 is correct.

5 0
3 years ago
ABC is an isoscles triangle. Angle A = 40°.
umka21 [38]

Answer:

70 degrees

Step-by-step explanation:

total angle in a triangle is 180 degrees

180-40= 140

Angle b and c is total of 140 degrees

they are isosceles so their measurements would be same.

angle b and c is 140÷ 2 = 70

so angle b is 70 degrees

8 0
3 years ago
Find an equation parallel to the line, y= -3x -1
Aleks04 [339]

Answer:

y = 3x -2

Step-by-step explanation:

If the line is parallel, that means it has the same slope. The given equation had a slope of 3, so the new line must also have a slope of 3.

You can plug the given coordinates into the slope-intercept form with a slope of 3 to find your answer.

y = m*x + b

7 = 3*3 + b

7 = 9 + b

-2 = b

y = 3x -2

I Hope This Helps :D

7 0
3 years ago
Read 2 more answers
Other questions:
  • Helppppppppppppppppppppppp
    12·1 answer
  • A restaurant compiled the following information regarding 40 of its employees. Of these​ employees, 9 cooked​ food, 14 washed​ d
    5·2 answers
  • How do I Simplify 8 3/4
    12·2 answers
  • What is the product? (3.4)(-7.8<br> a.-26.52<br> b.11.2<br> c.-11.2<br> d.-21
    7·1 answer
  • Hi im maddie im only in 5th grade tgo but it says to express nine thousandsths as a decimal​
    10·2 answers
  • Mr. Bates and Ms. Psenicska like playing Pokemon. Mr. Bates has 3 packs of cards plus 2 other cards. Ms. Psenicska has 6 packs o
    10·1 answer
  • Graph the line f(x)=-2x+4
    13·1 answer
  • Please help! Will mark brainliest
    10·1 answer
  • What is the result when the number 12 is decreased by 75%?
    10·1 answer
  • How many solutions does the equation have? |h| − 8 = 4<br> no solution, one solution, two solutions
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!