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
IrinaK [193]
3 years ago
12

Urgent! Please heeeeeeeeeeeeelp

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

The formula for area of a triangle is: 1/2 x base x height.

You are given the height of 4 and the area of 4.

Replace those in the formula and solve for x ( base)

4 = 1/2 x base x 4

Divide both sides by 4:

1 = 1/2 x base

Multiply both sides by 2:

2 = base

x = 2

Zolol [24]3 years ago
3 0

Answer:

2=X

Step-by-step explanation:

The area of a triangle is ..

A=1/2 (b×h)

b=base

h=height

Therefore you must plug in what you know and work backwards

4=1/2 (x×4)

×2=×2

___ _________

8=(x×4)

÷4= ÷4

____ _____

2=x

You might be interested in
Which of the following values will result in f(x)=10? F(x)=1/2x+8
QveST [7]
The answer is D because when you put the missing value which is x you replace it to 10 and then you solve it I hope this helps
5 0
2 years ago
ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually g
Sophie [7]

Answer:

D. It would be less steep.

Step-by-step explanation:

→When the absolute value of the number in front of x is greater than 1, the function on the graph narrows. When the absolute value of the number in front of x is less than 1, the function on the graph widens.

<u>In this case, the number is less than 1, making it grow wider. And as a result of it growing wider, it also becomes less steep.</u>

7 0
2 years ago
Help pls i give u brainliest and 5 stars​
Vesnalui [34]

Answer:

Surface area means all 6 sides

TOP side= 2 multiplied by 5

Bottom = 2 multiplied by 5

Right face   = 2 multiplied by 8.1

Left face = 2 multiplied by 8.1

Back side = 5 multiplied by 8.1

front side = 5 multiplied by 8.1

10+10+16.2+16.2+40.5+40.5 = 133.4 cm ^2

5 0
3 years ago
Read 2 more answers
Can Complementary angles be supplementary? <br> (Give me an explanation plss!!)
9966 [12]
For both complementary and supplementary angle...” No. For both complementary and supplementary angles, you can only have 2 angles and both of them must have positive measure. 1 or 3 or 4 angles can't be complementary or supplementary.
7 0
3 years ago
Read 2 more answers
What is the easiest way to find LCM and GCF?
Westkost [7]

Answer:

The trick I’d like to share gives you and your children a fast way to find the Least Common Multiple (LCM). FYI, the LCM is also called the LCD (Least Common Denominator) in problems requiring students to find a common denominator. So in this article I will use the two terms and abbreviations interchangeably.

When tutoring students working with fractions, I often see kids stressed while trying to find the LCD for two numbers. For example, in solving 3/16 + 11/24, I see kids pulling their hair out, trying to find the smallest number that 16 and 24 both divide into evenly. They need to do this, of course, so that they can add the two fractions, since they need a common denominator.

It turns out that there’s a quick-and-easy technique for doing this that most people have never heard of. This technique depends on knowing how to get the GCF (Greatest Common Factor) for the same numbers, but I’ll cover that in next month’s article, and show that there’s a trick for that as well.

Back to the LCM, here’s the quick-and-easy way to find it.

1st) Find the GCF for your two denominators. In our example of 3/16 + 11/24, the denominators are 16 and 24, and their GCF is 8.

2nd) Choose one of the two denominators. It doesn’t matter which one you pick .So we’ll just choose the first one listed, 16.

3rd) Divide the denominator you picked by the GCF. 16 ÷ 8 = 2.

4th) Take the quotient you just got, 2, and multiply it by the other denominator, 24. That gives you:  2 x 24 = 48. And voilà! This means that 48 is the Least Common Denominator for 16 and 24. Try it and see:  16 divides into 48 three times; 24 divides into 48 twice. So that means that for this fraction addition problem, the LCD = 48,. Once your children know that, they can easily convert and add the fractions.

Just to make sure that everyone gets the idea, let’s try this same process in another problem. Suppose your child is working the fraction subtraction problem:  37/45 – 11/25. First she needs to find the LCD for the denominators of 45 and 25. Seems tough, right? But watch, again, how these simple steps make quick work of this part of the problem.

1st) Find the GCF for 45 and 25. That would be 5.

2nd) Choose either denominator. It doesn’t matter which one you pick, so we’ll arbitrarily choose 45.

3rd) Divide the denominator you just chose by the GCF.  45 ÷ 5 = 9.

4th) Take the answer you just got, 9, and multiply it by the other denominator, 25.

9 x 25 = 225. So 225 is the LCM for 45 and 25.

Check it to see. 45 divides evenly into 225, five times; likewise, 25 divides evenly into 225, nine times. So once again, this trick allows children to find the LCM with a minimum of effort. And after all, math is more fun when you can work with numbers quickly and efficiently.

Anyone wondering why this “trick” works? It is based on a fundamental concept of Number Theory, a theorem that states:  GIVEN ANY TWO WHOLE NUMBERS, THE PRODUCT OF THOSE NUMBERS EQUALS THE PRODUCT OF THEIR LCM AND GCF. Or, in more simple English. If you multiply any two whole numbers together, the number you get is the same as what you get when you multiply the LCM and GCF of those numbers together.

Take the first example, and you’ll see that this is true. The numbers are 16 and 24. 16 x 24 = 384. And for 16 and 24, the GCF = 8, and the LCM = 48.  And 8 x 48 = 384.

Now to see how this theorem provides a foundation for the LCM trick, examine this quick argument.

Call any two whole numbers N1 and N2. Call the GCF for these numbers “G”; call their LCM “L.”

This theorem states:  N1  x  N2  =  G  x  L

That being true, we can flip the equation around:  G x L  =  N1  x N2.

Next divide both sides by G, like this:  (G x L) ÷ G  =  (N1  x  N2) ÷  G

Seeing that G ÷ G = 1 on the left side, the equation becomes:  L  =  (N1 x N2) ÷ G

Next just re-arrange the right side, like this:  L  =  (N1 ÷ G)  x  N2

And there you have it. For this says that the LCM (L) is equal to one of the numbers (N1) divided by the GCF (G), and then that quotient multiplied by the other number (N2).  Pretty nifty, huh?

As a follow-up, here’s a chance to practice this trick. Below you will find ten pairs of numbers. All you need to do is follow the steps I’ve laid out to find the LCM for each pair of numbers. The answers follow the problems.

PROBLEMS:

a)  6 and 8

b)  4 and 10

c)  9 and 15

d)  10 and 16

e)  14 and 21

f)  18 and 45

g)  24 and 28

h)  27 and 63

i)  32 and 48

j)  45 and 55

ANSWERS:

a)  6 and 8; GCF = 2; LCM  =  24

b)  4 and 10; GCF = 2; LCM = 20

c)  9 and 15; GCF = 3; LCM  =  45

d)  10 and 16; GCF = 2;  LCM  =  80

e)  14 and 21;  GCF = 7; LCM  =  42

f)  18 and 45;  GCF = 9; LCM  =  90

g)  24 and 28; GCF = 4; LCM  =  168

h)  27 and 63;  GCF = 9; LCM  =  189

i)  32 and 48;  GCF = 16; LCM  =  96

j)  45 and 55;  GCF = 5; LCM  =  495

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Maximize the objective function P = 2x + 1.5y for the feasible region shown. State the maximum value for P and the ordered pair
    15·1 answer
  • Please help i dont undertand it
    6·2 answers
  • Can someone help me with my algebra if u reply yes I’ll ask my questions
    14·2 answers
  • The table below shows the number of tickets sold per
    12·1 answer
  • |-13|= what is the integer
    8·1 answer
  • The equation y=123x describes the function for the number of toys, y, produced at Toys Plus in x mintues of production time. If
    5·1 answer
  • Is (0,0) a solution to this system?
    9·1 answer
  • Which is the correct identity for cos(π/2-θ) ? A. cos θ B. sin θ C. sec θ D. csc θ
    5·2 answers
  • Last week at Best Bargain, 75% of the computers sold were laptops. If 340 computers were sold last were, how many were laptops?
    11·1 answer
  • Write 60/105 in its simplest form.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!