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
frozen [14]
3 years ago
15

I have no idea what this is

Mathematics
1 answer:
sattari [20]3 years ago
7 0

Answer:

If y = 30, x = 10

Explanation:

If you extend the line to reach the y-value of 30, the x-value of the point will be 10. So, if y = 30, x = 10.

Good luck ^^

You might be interested in
Help me pleaseeeeee
xenn [34]

Answer:

B.28, 4 + (6*4) = 24 + 4 = 28

6 0
3 years ago
Read 2 more answers
Principal Leroy Jenkins wants to build a circular garden in the school courtyard. The garden will have a diameter of 20 feet. Pr
Dovator [93]

Answer:

62.8ft

Step-by-step explanation:

we are to determine the circumference of the garden

circumference = πD

= 3.14 x 20 = 62.8 ft

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B3%7D%20%5Ctimes%20%5Cfrac%7B2%7D%7B3%7D%20%5Ctimes%20%5Cfrac%7B2%7D%7B3%7D
erik [133]
2^3
——
3^3



............
8 0
2 years ago
Given a function <img src="https://tex.z-dn.net/?f=f%28x%29%3D3x%5E4-5x%5E2%2B2x-3" id="TexFormula1" title="f(x)=3x^4-5x^2+2x-3"
Levart [38]

Answer:

\huge\boxed{f(-1) = -7}

Step-by-step explanation:

In order to solve for this function, we need to substitute in our value of x inside to find f(x). Since we are trying to evalue f(-1), we will substitute -1 in as x to our equation.

f(-1) = 3(-1)^4 - 5(-1)^2 + 2(-1) - 3

Now we can solve for the function by multiplying/subtracting/adding our known values.

Starting with the first term to the last term:

  • 3(-1)^4 = 3

<u><em>WAIT</em></u><em>!</em><em> How is this possible? </em>-1^4 = -1 (according to my calculator), and 3 \cdot -1 = -3, not 3!

It's important to note that taking a power of a negative number and multiplying a negative number are two different things. Let's use -2^2 as an example.

What your calculator did was follow BEMDAS since it wasn't explicitly told not to.

BEMDAS:

- Brackets

- Exponents

- Multiplication/Division

- Addition/Subtraction

Examining the equation, your calculator used this rule properly. Note that exponents come over multiplication.

So rather than  being <em>"-2 squared"</em> - it's <em>"the negative of of 2 squared."</em>

Tying this back into our problem, the squared method would only be true if it looks like -1^4. However, since we're substituting in -1, it looks like (-1)^4, so the expression reads out as "<u><em>-1 to the fourth.</em></u>"

MULTIPLYING -1 by itself 4 times results in -1\cdot-1\cdot-1\cdot-1=1.

Applying this logic to our original term, 3(-1)^4:

  • 3(-1\cdot-1\cdot-1\cdot-1)
  • 3(1)
  • 3

Therefore, our first term is 3.

Let's move on to our second and third terms.

Second term: -5x^2

  • -5(-1)^2

Applying the same logic from our first term:

  • -5(-1 \cdot -1)
  • -5(1)
  • -5

Third term: 2x

  • 2(-1) = -2

-3 is just -3, no influence of x.

Combining our terms, we have 3-5-2-3.

This comes out to be -7, hence, the value of f(-1) for our function f(x)=3x^4-5x^2+2x-3 is <u>-7</u>.

Hope this helped!

4 0
3 years ago
Read 2 more answers
If d is 55 degrees then what is F and E degrees. Explain how you know​
kipiarov [429]

Answer:

F=55

E=70

Step-by-step explanation:

The total degree of a triangle is 180.

So we have 180-55*2

E=180-110

E=70

8 0
3 years ago
Other questions:
  • The area of the shaded region of circle O is 9π m2
    10·1 answer
  • Can someone write an equation from these coordinates<br> (1,-9)<br> (2,-8)<br> (3,-5)<br> (4,0)
    13·1 answer
  • HELPPPPPPP PLEASE 5 MINUTES LEFT
    14·1 answer
  • Identify the range of the function.
    9·1 answer
  • Solve the problem.
    14·1 answer
  • P)
    8·1 answer
  • In a school, 130 students are sixth graders. If 52% of the students in the school are sixth graders, how many students are there
    8·1 answer
  • Chen I’d bringing fruit and veggies to serve at an afternoon meeting. He spends a total of $28.70 on 5 pints of cut veggies and
    8·1 answer
  • I need one quarter liter of milk to make a milkshake. A.How much milk will I need to make 3 milkshakes?. B. How many ml will tha
    9·1 answer
  • 1. Differentiate quadrilateral from parallelogram?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!