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
AleksandrR [38]
2 years ago
7

A(x)= -5x+ 8. Find a (7)

Mathematics
2 answers:
Artemon [7]2 years ago
4 0
A(7)-32 that’s the answer
IRINA_888 [86]2 years ago
3 0

Answer:

a(7) = -32.

Step-by-step explanation:

if a(x) = -5x+8

then a(7) = -5(7) + 8.

-5(7) +8

-40+8

-32.

I hope this helps!

You might be interested in
Find the arc of the circle
gogolik [260]

Answer:

The Arc of the circle is 12.

6 0
2 years ago
Which relation is a function?
Cerrena [4.2K]
3.) (2,1), (4,2), (6,4), (7,5), (8,6)
5 0
3 years ago
If a scalene triangle has its measures 4 m, 11 m and 8 m, find the largest angle.
soldier1979 [14.2K]

Answer:

129.8 approximately

Step-by-step explanation:

So this sounds like a problem for the Law of Cosines. The largest angle is always opposite the largest side in a triangle.

So 11 is the largest side so the angle opposite to it is what we are trying to find. Let's call that angle, X.

My math is case sensitive.

X is the angle opposite to the side x.

Law of cosines formula is:

x^2=a^2+b^2-2ab \cos(X)

So we are looking for X.

We know x=11, a=4, and b=8 (it didn't matter if you called b=4 and a=8).

11^2=4^2+8^2-2(4)(8)\cos(X)

121=16+64-64\cos(X)

121=80-64\cos(X)

Subtract 80 on both sides:

121-80=-64\cos(X)

41=-64\cos(X)

Divide both sides by -64:

\frac{41}{-64}=\cos(X)

Now do the inverse of cosine of both sides or just arccos( )

[these are same thing]

\arccos(\frac{-41}{64})=X

Time for the calculator:

X=129.8 approximately

3 0
3 years ago
Order the values from least to greatest.
Lorico [155]

Answer:

In order of least to greatest- 99%, -9.9, sqaure root of 80, 1/9, sqaure root of 9, 19%

Step-by-step explanation:

7 0
2 years ago
I need to know the answer but it would be nice to have the steps too
Maslowich

Answer:

The perimeter of the rectangle is 27n + 1 feet

Step-by-step explanation:

The formula of the perimeter of the rectangle is P = 2(L + W), where

  • L is the length of the rectangle
  • W is the width of the rectangle

∵ The width of a rectangle is 7n - 6.5 feet

∴ W = 7n - 6.5 feet

∵ The length of the rectangle is 6.5n + 7 feet

∴ L = 6.5n + 7 feet

→ Substitute W and L in the formula of the perimeter above

∵ P = 2[6.5n + 7 + 7n - 6.5]

→ Add the like terms

∴ P = 2[(6.5n + 7n) + (7 - 6.5)]

∴ P = 2[13.5n + 0.5]

→ Multiply the terms in the bracket by 2

∴ P = 27n + 1

∴ The perimeter of the rectangle is (27n + 1) feet

3 0
3 years ago
Other questions:
  • ASAPPP HURRY UP PLSSS
    9·2 answers
  • The accompanying data contains the depth​ (in kilometers) and​ magnitude, measured using the Richter​ Scale, of all earthquakes
    10·1 answer
  • (-8,7),(-9,-5) write in Ax+By=C
    6·1 answer
  • What’s the answer for 5/9+w=7/9
    7·2 answers
  • Can someone please explain to me (in steps) how to round decimals to the nearest half? Thanks!!
    10·2 answers
  • A plane flying over the ocean is on course to land on an aircraft carrier. The diagonal distance between the plane and the aircr
    7·1 answer
  • Henry ate 3/8 of a sandwich. Keith ate 4/8 of the same sandwich. How much more of the sandwich did Keith eat than Henry?
    6·1 answer
  • PLLLZZ EXPLAIN HOW YOU GOT IT! I will give you branilest!
    15·1 answer
  • 5/2 x X =1 what’s the answer
    15·2 answers
  • A conductor is mapping a trip and records the distance the train travels over certain time intervals.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!