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
choli [55]
2 years ago
8

Evaluate a^7 - 4b for a =3 and b= -1

Mathematics
2 answers:
Nataly_w [17]2 years ago
8 0
A^7 - 4b when a = 3 and b = -1
= (3)^7 - (4)(-1)
= 3 * 3 * 3 - (-4)
= 27 - (-4)
= 27 + 4
= 32
Papessa [141]2 years ago
3 0

Answer:

2187+4

= 2191

Step-by-step explanation:

plz brainliest :)

You might be interested in
Anyone know the answer ?!? Let me know please !!!
Andru [333]

Answer:

25/35 = .71 = 71%

Step-by-step explanation:

3 0
2 years ago
Could someone help me, please?
k0ka [10]

We can rewrite the expression under the radical as

\dfrac{81}{16}a^8b^{12}c^{16}=\left(\dfrac32a^2b^3c^4\right)^4

then taking the fourth root, we get

\sqrt[4]{\left(\dfrac32a^2b^3c^4\right)^4}=\left|\dfrac32a^2b^3c^4\right|

Why the absolute value? It's for the same reason that

\sqrt{x^2}=|x|

since both (-x)^2 and x^2 return the same number x^2, and |x| captures both possibilities. From here, we have

\left|\dfrac32a^2b^3c^4\right|=\left|\dfrac32\right|\left|a^2\right|\left|b^3\right|\left|c^4\right|

The absolute values disappear on all but the b term because all of \dfrac32, a^2 and c^4 are positive, while b^3 could potentially be negative. So we end up with

\dfrac32a^2\left|b^3\right|c^4=\dfrac32a^2|b|^3c^4

3 0
3 years ago
If h(x) = x – 7 and g(x) = x2, which expression is equivalent (g o h)(5)
Zanzabum
(goh)(x) = (g(x))(h(x)) = (x^2)(x-7) = x^3 -7x^2
then (goh)(5) = (5^3)-7(5)^2 = 124-7(25) = 124-175 = -51
8 0
3 years ago
Plzzzzz ill make u brainliest like frfr
Luden [163]

Answer:

3,520 yds in 2 hours

Step-by-step explanation:

5,280:1 ; 1 mile an hour is 5,280 feet in an hour

10,560:2 ; 2 miles in 2 hours is 5,280+5,280 (10,560) feet in 2 hours

3 ft = 1 yd ; every 3 feet is a yard, so divide 10,560 by 3

10,560/3 = 3520 yds ; Jorge can walk 3,520 yds in 2 hours

6 0
3 years ago
Which figures below are congruent?<br> 1 and 2<br> 2 and 3<br> 1 and 3<br> 2 and 4
zvonat [6]

Answer:

1 and 3

Step-by-step explanation:

since they both are equal shape with equal sizes.

4 0
3 years ago
Other questions:
  • Use the relative row frequencies in the table below to answer the question. Movie Preference Action Drama Science- Fiction Comed
    8·2 answers
  • Y=2x+4 <br>someone please help me on this one.​
    5·1 answer
  • How is subtracting integers related to adding integers
    11·2 answers
  • Malachy and Paul win some money and share it in the ratio 4:5. Malachy gets £44. How much did Paul get?
    6·1 answer
  • Https://youtu.be/-PQ1c19MHNw​
    13·1 answer
  • -28xy - ( - 4yz ) - ( - 4yx ) - 2zy =
    8·1 answer
  • 22. (01.05)
    12·1 answer
  • Enter the equation in slope-intercept form. Then graph the line described by the equation. -4x - 3y = 9
    8·1 answer
  • Figure WXYZ is a rectangle. What are the<br> coordinates of point W?
    15·2 answers
  • The temperature of a substance in an experiment changes by −8.7°F from 10 a.m. to 1 p.m. At 5 p.m., the temperature is 33.5°F. I
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!