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
Firdavs [7]
3 years ago
6

the formula for the area of a triangle is a=1/2bh in which b represents the length of the base and h represents the height. If a

triangel has an area of 287 mm and the height is 18 mm, what is the b=meausre of the base?
Mathematics
1 answer:
Igoryamba3 years ago
7 0

Answer:

287/9

Step-by-step explanation:

so the formula is a=1/2bh

A=287

B=?

H=18

:287=1/2b*18

287=b*9

b=287/9

You might be interested in
Tim sold half of his comic books then bought 8 more. He now has 17. How many did he start with?
disa [49]

Answer:

18

Step-by-step explanation:

18 divided by 2 is 9 plus 8 is 17

7 0
3 years ago
The change in water level of a lake is modeled by a polynomial function, W(x). Describe how to find the x-intercepts of W(x) and
Agata [3.3K]
<span>First. <u>Finding the x-intercepts of </u>W(x)
</span><span>
Let W(x) be the change in water level. So to find the x-intercepts of this function we can use The Rational Zero Test that states:

To find the zeros of the polynomial:

f(x)=a_{n}x^{n}+a_{n-1}x^{n-1}+...+a_{2}x^{2}+a_{1}x+a_{0}

We use the Trial-and-Error Method which states that a factor of the constant term:

a_{0}

can be a zero of a polynomial (the x-intercepts).

So let's use an example: Suppose you have the following polynomial:

W(x)=x^{4}-x^{3}-7x^{2}+x+6

where the constant term is a_{0}=6. The possible zeros are the factors of this term, that is:

1, -1, 2, -2, 3, -3, 6 \ and \ -6.

Thus:

</span>W(1)=0 \\ W(-1)=0 \\ W(2)=-12 \\ W(-2)=0 \\ W(3)=0 \\ W(-3)=48 \\ W(6)=840 \\ W(-6)=1260<span>

From the foregoing, we can affirm that 1, -1, -2 \ and \ 3 are zeros of the polynomial.

</span>Second. <u>Construction a rough graph of</u> W(x)

Given that this is a polynomial, then the function is continuous. To graph it we set the roots on the coordinate system. We take the interval:

[-2,-1]

and compute W(c) where c is a real number between -2 and -1. If W(c)>0, the curve start rising, if not, the curve start falling. For instance:

If \ c=-\frac{3}{2} \\ \\ then \ w(-\frac{3}{2})=-2.81

Therefore the curve start falling and it goes up and down until x=3 and from this point it rises without a bound as shown in the figure below


7 0
3 years ago
Read 2 more answers
The spinner for a board game has eight colors the arrow can land on. What are the degrees of freedom for a goodness-of-fit test
Juliette [100K]

Answer: Option 'c' is correct.

Step-by-step explanation:

Since we have given that

Number of colors that the arrow can land on = 8

We need to find the degrees of freedom for a goodness of fit test of the fairness of this spinner.

As we know that degree of freedom is 1 less than the size of sample.

So, Mathematically, it is expressed as below:

So, Degree of freedom would be

v=n-1\\\\v=8-1\\\\v=7

Hence, Option 'c' is correct.

7 0
3 years ago
De dos en dos los numeros de 1.000 hasta 1.100
fgiga [73]

Step-by-step explanation:

1050 es la respuesta amigo

3 0
2 years ago
Please help ill give you. brainiest
Bond [772]

I believe the answer is b

3 0
3 years ago
Read 2 more answers
Other questions:
  • Standard form- 12 ten thousands, 8 thousands,14 hundreds,7 ones
    8·1 answer
  • The height if a building, h, is equal to the number of floors, f, times 11 feet. Write an equation to represent each proportiona
    6·1 answer
  • The graph of the function f(x) is shown below.
    5·2 answers
  • Please help!posted picture of question
    5·2 answers
  • If the sum of a number and seven is doubled, the result is five less than the number
    15·1 answer
  • Solve the equation if x and y are whole numbers? 4xy + 8 = 36
    7·1 answer
  • A new school has opened in the area the school did not have a year book before 2010 in 2010 there were 500 year book sold into 1
    5·1 answer
  • What is the value of B for the following triangular prism? 5.6 cm 2 52.5 cm 2 5.25 cm 2 56 cm 2
    8·2 answers
  • Multiply x(x^2+2x+4) and -2(x^2+2x+4)<br> Combine like terms:<br> Final answer:
    9·1 answer
  • Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!