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
LuckyWell [14K]
2 years ago
7

Which expression is equivalent to 7^3 x 7^-5?

Mathematics
2 answers:
slavikrds [6]2 years ago
8 0

When multiply terms with exponents, simply add the exponents.

7^{3} * 7^{-5} = 7^{-2} = \frac{1}{7^{2}}

Hope this helps!

Nastasia [14]2 years ago
7 0
ANSWER:
C. 1/7^2

Hope it helps u!

You might be interested in
Pls help I don't know how to do this​
AVprozaik [17]

Answer:

Vertex, I believe.

7 0
2 years ago
Classify the following triangle. Check all that apply. A. Scalene B. Right C. Acute D. Equilateral E. Obtuse F. Isosceles ​
Sati [7]

Answer:

E and F

Step-by-step explanation:

The triangle given has two equal sides, and an obtuse angle that is more than 90° that measures 120°. The other two angles are of equal measure since their opposite sides are of the same length. Thus, this implies that it is an isosceles triangle because it has two equal base angles and two equal sides. It also implies that it is an obtuse triangle since one of it's angles is more than 90°.

3 0
3 years ago
Read 2 more answers
Click on the number until you find the right quotient. 36m5n5 ÷ (12m3)
Len [333]

<em>So</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>3</em><em>m</em><em>^</em><em>2</em><em>n</em><em>^</em><em>5</em>

5 0
3 years ago
Prove algebraically that the straight line with equation x=2y+5 is a tangent to the circle with equation x^2+y^2=5
zmey [24]

Differentiate both sides of the equation of the circle with respect to x, treating y=y(x) as a function of x:

x^2+y^2=5\implies2x+2y\dfrac{\mathrm dy}{\mathrm dx}=0\implies\dfrac{\mathrm dy}{\mathrm dx}=-\dfrac xy

This gives the slope of any line tangent to the circle at the point (x,y).

Rewriting the given line in slope-intercept form tells us its slope is

x=2y+5\implies y=\dfrac12x-\dfrac52\implies\mathrm{slope}=\dfrac12

In order for this line to be tangent to the circle, it must intersect the circle at the point (x,y) such that

-\dfrac xy=\dfrac12\implies y=-2x

In the equation of the circle, we have

x^2+(-2x)^2=5x^2=5\implies x=\pm1\implies y=\mp2

If x=-1, then -1=2y+5\implies y=-3\neq2, so we omit this case.

If x=1, then 1=2y+5\implies y=-2, as expected. Therefore x=2y+5 is a tangent line to the circle x^2+y^2=5 at the point (1, -2).

7 0
3 years ago
Read 2 more answers
The Andrews Family bought 2 adult tickets,3 children tickets,and 1 senior
kirill [66]

Answer:

$26.00

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Katie is making covers for metal nameplates. She needs to know how much plastic, at minimum, she’ll need to fully cover 30 namep
    6·1 answer
  • A sample of 1200 computer chips revealed that 45% of the chips fail in the first 1000 hours of their use. The company's promotio
    7·1 answer
  • Translate the following phrase to a mathematical expression: a number times fifteen.
    12·2 answers
  • A ball is thrown from an initial height of
    12·1 answer
  • What is (x+3)(x+8)=0
    15·2 answers
  • Write an
    14·1 answer
  • A full jar of honey weighs 72/125 kg. If the weight of the empty jar is 2/9 of the weight of the full jar, what is the weight of
    11·2 answers
  • Solve the following proportion for y.<br> y/9 = 8/11<br> Round your answer to the nearest tenth.
    12·1 answer
  • Find the roots of the quadratic equation x^2 + 7x + 10 = 0 by using the quadratic formula​
    6·2 answers
  • How to solve and answer:1<br> 1/3(9-6x)=-11
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!