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
viktelen [127]
2 years ago
15

Simplify each expression. Type your answer into the box. (8 – 4)2 x |4 – 8| =

Mathematics
2 answers:
elena55 [62]2 years ago
7 0

Answer:

-32

Step-by-step explanation:

First you have to solve the numbers in the parenthesis which would be (8-4)= 4 then there is a 2 that you have to multiply which would be 4x2=8, then you have to solve the other parenthesis (4-8)=-4 so then you end up with 8x-4 which equals -32

Troyanec [42]2 years ago
7 0

Answer:

-8

Step-by-step explanation:

You might be interested in
How do I find out if -5 1/5 is greater,less or equal to 5.2?
swat32
It is less than 5.2, simply because the number is negative.
7 0
3 years ago
Read 2 more answers
What complex number is represented by the polar coordinates (4, -pi/4)
nexus9112 [7]

Answer:

\displaystyle \large{z=2\sqrt{2} -2 \sqrt{2}i}

Step-by-step explanation:

A complex number is defined as z = a + bi. Since the complex number also represents right triangle whenever forms a vector at (a,b). Hence, a = rcosθ and b = rsinθ where r is radius (sometimes is written as <em>|z|).</em>

Substitute a = rcosθ and b = rsinθ in which the equation be z = rcosθ + irsinθ.

Factor r-term and we finally have z = r(cosθ + isinθ). How fortunately, the polar coordinate is defined as (r, θ) coordinate and therefore we can say that r = 4 and θ = -π/4. Substitute the values in the equation.

\displaystyle \large{z=4[\cos (-\frac{\pi}{4}) + i\sin (-\frac{\pi}{4})]}

Evaluate the values. Keep in mind that both cos(-π/4) is cos(-45°) which is √2/2 and sin(-π/4) is sin(-45°) which is -√2/2 as accorded to unit circle.

\displaystyle \large{z=4\left(\frac{\sqrt{2}}{2} - \frac{\sqrt{2}}{2}i \right)}\\\\\displaystyle \large{z=2\sqrt{2} -2 \sqrt{2}i}

Hence, the complex number that has polar coordinate of (4,-45°) is \displaystyle \large{z=2\sqrt{2} -2 \sqrt{2}i}

3 0
1 year ago
What is the value of x? <br> -2/7x+6+1/7x=18 <br> x=
Alenkinab [10]
- \frac{2}{7} x + 6 + \frac{1}{7} x = 18

First, simplify \frac{2}{7} x to \frac{2x}{7} / Your problem should look like: -\frac{2x}{7} + 6 + \frac{1}{7} x = 18
Second, simplify \frac{1}{7} x to \frac{x}{7} / Your problem should look like: - \frac{2x}{7} + 6 + \frac{x}{7} = 18
Third, simplify - \frac{2x}{7} + 6 + \frac{x}{7} to - \frac{x}{7} + 6 / Your problem should look like: -\frac{x}{7} + 6 = 18
Fourth, regroup terms. / Your problem should look like: 6 - \frac{x}{7} = 18
Fifth, multiply both sides by 7. / Your problem should look like: 42 - x = 126
Sixth, subtract 42 from both sides. / Your problem should look like: -x = 126 - 42
Seventh, simplify 126 - 42 to 84. / Your problem should look like: -x = 84
Eighth, multiply both sides by -1. / Your problem should look like: x = -84

Answer: x = -84

4 0
3 years ago
a plant is already 15.25 meters tall and it will grow 20 centimeters every month the plants height h(in meters) after x months i
Lapatulllka [165]

Answer:

H= 121.25 meters

Step-by-step explanation:

To find the value of H after 30 months given the equation H=0.20x+115.25,

replace x by 30 in the equation and solve;

H=(0.20*30)+115.25

H=6+115.25

H= 121.25 meters

Therefore, the height will be 121.25 meters

6 0
3 years ago
Can someone answer number 1
Serga [27]
The answer to number one is A
6 0
3 years ago
Other questions:
  • ared has a checking account. The bank charges 15¢ for each debit card transaction, 25¢ for each check, and $2.25 for each nonban
    15·1 answer
  • The vertices of a triangle are A(5, –4), B(7, 0), and C(1, –2). If the triangle is a right triangle, which vertex is the right a
    6·1 answer
  • **WILL MARK BRAINLIEST!!!** At a train station, freight trains depart at a rate of 2 trains every 30 minutes and passenger train
    6·1 answer
  • What is the value of Y in the exponential decay function when x equals 3? Y=0.25x
    6·2 answers
  • Can someone help with geometry !! If m
    5·1 answer
  • In the fraction below, which number is the numerator?
    14·1 answer
  • Which expression simplifies to 8x^5?
    14·1 answer
  • A postage box should weigh 1.0 pound. If there is a 5% error on the weight, what is the range of acceptable weight?
    14·1 answer
  • 3600−6.3⋅10 2<br> =3600, minus, 6, point, 3, dot, 10, squared, equals
    10·1 answer
  • How do I get to -19 from -6
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!