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
Margaret [11]
3 years ago
15

Evaluate the expression below when x = -4. 4x2 - 2x × 15

Mathematics
1 answer:
olga_2 [115]3 years ago
4 0

-1080 if x = -4 then you do 4 * -4*2-2*-4*15


You might be interested in
Use the correct function to find the missing angle y measurement to the
Doss [256]

Answer:

Cos;

26 degrees

Step-by-step explanation:

Recall: SOH CAH TOA

Reference angle = y°

Adjacent side = 18 in.

Hypotenuse = 20 in.

We would apply the trigonometric function CAH since we are dealing with the Adjacent side (A) and the Hypotenuse (H). Thus:

Cos y° = Adj/Hyp

Cos y° = 18/20

Cos y° = 0.9

y° = cos^{-1}(0.9)

y = 25.8419328° ≈ 26 degrees (nearest whole degree)

The answers are:

Cos and 26 degrees

4 0
2 years ago
-4x + y = -9<br> -<br> 5x + 2y = 3<br> :<br> Solve the Linear equation
Yuri [45]
-4x+y= -9 can be turned into
y= -9 + 4x

5x+2y=3 (plug y in)
5x+2(-9+4x)=3
5x-18+8x=3
5x+8x=3+18
13x=21
divide 13 on both sides
x=1.6
6 0
2 years ago
A DVD has a diameter of 26 centimeters. What is the area of the DVD? Round your answer to the nearest hundredth. Use 3.14 for π.
Alinara [238K]

Answer:

A =530.66 cm^2

Step-by-step explanation:

A DVD is a circle so we can use the formula for area of a circle

A = pi r^2

We can find the radius from

r = d/2  where d is the diameter

r = 26/2

r = 13

A = pi *13^2

A = pi *169

Substituting in for pi

A = (3.14) * 169

A =530.66

7 0
3 years ago
Select the correct answer.
NeX [460]

Answer:

C. Wright Mills

Step-by-step explanation:

was the American sociologist who strongly criticized the structural functionalist approach to sociology.

8 0
2 years ago
Matt invests $1,669 in a saving account with a fixed annual interest rate of 2% compounded 12 times per year. How long will it t
vesna_86 [32]

Answer:

It will take 4.84 years

Step-by-step explanation:

The initial amount that Matt invested was $1669. It means that principal is

P = 1669

It was compounded 12 times per year. So

n = 12

The rate at which the principal was compounded is 2%. So

r = 2/100 = 0.02

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount in the account at the end of t years.

A = 1,844.38

Therefore

1,844.38 = 1669(1+0.02/12)^(12×t)

1,844.38/1669 = (1.0017)^(12t)

1.1051 = (1.0017)^(12t)

Taking log to base 10 of both sides, it becomes

Log 1.1051 = log 1.0017^(12t)

Log 1.1051 = 12tlog 1.0017

0.043 = 0.00074 × 12t

0.043 = 0.00888t

t = 0.043/0.00888

t = 4.84 years

6 0
3 years ago
Other questions:
  • A function is shown below: f(x) = (1.93)x <br> What does the function represent?
    10·2 answers
  • A breakfast chef used different amounts of milk when making pancakes, depending Jon the number of pancakes ordered. The results
    13·1 answer
  • the graph of f (x) shown below has the same shape as the graph of G (x) equals x ^ 4 but it is shifted 4 units to the right what
    5·1 answer
  • A metal hollow bar whose cross section and dimension are shown below weighs 8x10^3 kg/m^3 and measure 2m in length ..determine t
    6·1 answer
  • The measure of angle O is 7pi/4. The measure of its reference angle is _degree, and tan O is _?
    13·2 answers
  • Domain and range helllllllllllllllllllllllllllppppp
    6·1 answer
  • SOMEONE PLS HELP ME
    7·1 answer
  • I need help ASAP! &lt;:
    13·2 answers
  • The following numbers divisible by 4 and 8 a) 726352​
    15·1 answer
  • The total volume of a tree increases 6% each year. what will its volume be after 7 years if its volume is 5 cubic meters now?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!