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
MAXImum [283]
3 years ago
5

Guys, please help me with this math problem.

Mathematics
2 answers:
ELEN [110]3 years ago
8 0

Answer:

+4

Step-by-step explanation:

Substitute -1 for x in the equation given:

8(-1)^4 - 3(-1) - 7, or:

  8        + 3    - 7

This works out to +4.

Sphinxa [80]3 years ago
5 0

Your answer would be 4.

You might be interested in
The area enclosed by one shooting circle is 401.92 square yards. Write and solve a formula to find the radius of the shooting ci
Daniel [21]

The formula for area in terms of radius is

... A = πr²

Solving this for r, we get

... A/π = r²

... r = √(A/π) . . . . . formula for the radius

For your given area, the radius is approximately

... r = √(401.92/3.14) = √128 = 8√2

... r ≈ 11.3 . . . yards

7 0
3 years ago
(help)Name the intersection of the two planes in the image below.
serg [7]

Answer:

XZ

Step-by-step explanation:

The intersection of the 2 planes is along the line XZ

3 0
3 years ago
How do the expressions 72 / 9 and -72/ (-9) compare when they are evaluated?
Artemon [7]

Answer:

D

Step-by-step explanation:

72/9=8

-72/-9=8 because negative/negative=positive.

7 0
3 years ago
Read 2 more answers
Help please i need it bad
evablogger [386]

Answer:

-13, -3

15, 2.6

Step-by-step explanation:

x, y are the numbers

x = 5y + 2

x×y = 39

(5y + 2)×y = 39

5y² + 2y - 39 = 0

the solution of a quadratic equation :

y = (-b ± sqrt(b² - 4ac))/2a

a = 5

b = 2

c = -39

y = (-2 ± sqrt(2² - 4×5×-39))/2×5 =

= (-2 ± sqrt(4 + 780))/10 =

= (-2 ± sqrt(784))/10 = (-2 ± 28)/10

y1 = (-2 + 28)/10 = 26/10 = 2.6

y2 = (-2 - 28)/10 = -30/10 = -3

x1 = 5×2.6 + 2 = 13 + 2 = 15

x2 = 5×-3 + 2 = -15 + 2 = -13

5 0
2 years ago
-(-3x-5)=7x what is x​
konstantin123 [22]

Step-by-step explanation:

-(-3x-5)=7x

3x+5=7x

4x=5

x=5/4

5 0
3 years ago
Read 2 more answers
Other questions:
  • Round 75.64 to the nearest ten
    10·2 answers
  • Hours of
    8·2 answers
  • Find the percent of decrease from 270 to 200. Round to the nearest 10th of a percent if necessary.
    12·1 answer
  • One number is 2 less than a second number. Twice the second number is 9 less than 3 times the first. Find the two numbers.
    5·1 answer
  • Use words to describe the relationship between corresponding numbers of hours and weeks
    7·2 answers
  • Anthony has a bag that contains 4 blue candies, 6 green candies, and 10 yellow candies. * Without looking, he pulls out a piece
    13·1 answer
  • The area of a rectangle with a width of 3 units and a height of 4 units is 12 square units
    12·1 answer
  • What is the equation for the trendline
    8·2 answers
  • Find an equation of the line that has a slope of 9 and a y intercept of -2.
    7·2 answers
  • Help me please and thank you
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!