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
Mrac [35]
3 years ago
13

Please help!!! find 2(-4) ^2 - 2(2) ^4 + 3^2 - -4^2 + 2^4 ​

Mathematics
1 answer:
Taya2010 [7]3 years ago
5 0
Answer: 9

explanation: simply the expression .
You might be interested in
Find the missing value<br> 8<br> 14<br> 45 <br> 15
alekssr [168]

Answer:

The correct option is B.

Step-by-step explanation:

From the given figure it is nices that the length of sides AB, BC and AC are 20, 22 and 35. The line AD is angle bisector.

Let the missing value be x.

The Triangle Angle Bisector Theorem states that the angle bisector of an angle of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle.

Since AD is angle bisector, therefore

\frac{AB}{AC}=\frac{BD}{CD}

\frac{20}{35}=\frac{22-x}{x}

20x=35(22-x)

20x=770-35x

Add 35x both sides.

55x=770

Divide both sides by 55.

x=\frac{770}{55}

x=14

Therefore, second option is correct.

6 0
3 years ago
5y(2y-3)=(2y-3) can someone help me and explain step by step on how to do it
Studentka2010 [4]
First you must add the same numbers together, for instance, you wouldn't add 4y with 4 you have to add it with another number that is just like it, for instance 4y and 9y they are the same, so you can add them. So let's get to the problem now: 5y(2y-3)=(2y-3) 5y*2y=10y (10y-3)=(2y-3) You can do nothing to the other side because there are no numbers, that are the same.
6 0
3 years ago
Choose the property of addition that justifies the equation.
Studentka2010 [4]

Answer:

Associative

Step-by-step explanation:

Associative property is the one that says that when 3 or more numbers are summed, the grouping of such numbers has no effect on the result of the sum. It is:

(a + b) + c = a + (b + c) for every a, b and c real numbers.

6 0
3 years ago
A classroom board is 54 inches wide and 36 inches tall. Eva
Lady bird [3.3K]
<h3>Answer:  180 inches</h3>

Work Shown:

L = 54 = length

W = 36 = width

P = 2(L+W) ... perimeter of the rectangle

P = 2(54+36)

P = 2(90)

P = 180

She needs 180 inches of ribbon.

To convert to feet, divide by 12. So 180 inches = 180/12 = 15 feet.

8 0
2 years ago
A farmhouse shelters 16 animals, some are pigs, and some are ducks. Altogether there are 42 legs. How many pigs are there?
zalisa [80]

Answer:

5 pigs

Step-by-step explanation:

A farmhouse shelters 16 animals, some are pigs, and some are ducks. Altogether there are 42 legs. How many pigs are there?

Let us represent:

Number of pigs = x

Number of ducks = y

Our system of equations is given as:

A farmhouse shelters 16 animals, some are pigs, and some are ducks.

x + y = 16...... Equation 1

x = 16 - y

Altogether there are 42 legs.

Ducks have 2 legs(feet) , pigs have 4 legs,

4x + 2y = 42..... Equation 2

We substitute

16 - y for x in Equation 2

Hence:

4(16 - y) + 2y = 42

64 - 4y + 2y = 42

Collect like terms

- 4y + 2y = 42 - 64

-2y =- 22

y = -22/-2

y = 11 ducks

Solving for x.

x = 16 - y

x = 16 - 11

x = 5 pigs

Therefore, we have 5 pigs

7 0
2 years ago
Other questions:
  • Two chicken coops are to be built adjacent to one another from 168 ft of fencing. What dimensions should be used to maximize the
    6·1 answer
  • 38 was divided by a power of ten to get 0.038. What power of ten was it divided by?
    13·1 answer
  • What is the value of<br> (1+i) (1 - 1)<br> 2 – 3<br> ?
    15·2 answers
  • There are 135 people in a sport centre. 73 people use the gym. 59 people use the swimming pool. 31 people use the track. 19 peop
    8·1 answer
  • The double number line shows that 111 pound of chocolate costs \$4$4dollar sign, 4.
    11·2 answers
  • Which expressions are equivalent to 4(4a+5)
    8·1 answer
  • Which is the graph of y - 3 = -2/3(x + 6)?
    12·1 answer
  • Find the slope-intercept form of an equation of the line perpendicular to the graph of x – 3y = 5 and passing through (0, 6).
    5·1 answer
  • Secθ=<br><br> a. (sqrt tan^2 + 1)<br> b. 1/sinθ<br> c. (sqrt cos^2 + 1)
    10·1 answer
  • What is the value of the expression below if y = 5?<br> 35 = (y + 2) + 4
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!