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
Sunny_sXe [5.5K]
3 years ago
13

Anyone know how to do #3 on this trig worksheet

Mathematics
1 answer:
STatiana [176]3 years ago
7 0
The answer I'm pretty sure is B but I can't really explain it, sorry
You might be interested in
Which is the best estimate for the expression?<br> 49% of 15
irakobra [83]


49%=0.49

0.49x15=7.35

49% of 15 is 7.35

3 0
3 years ago
Read 2 more answers
What is the explicit formula for this sequence? ​
anyanavicka [17]

Answer:

The correct answer is D.

3 0
3 years ago
Read 2 more answers
PLs help 50 PTS!!!!! PLEASE ILL GIVE BRAINLIEST!!!!!
Nookie1986 [14]

Answer:

\large\boxed{y=\dfrac{1}{4}x^2-x-4}

Step-by-step explanation:

The equation of a parabola in vertex form:

y=a(x-h)^2+k

<em>(h, k)</em><em> - vertex</em>

The focus is

\left(h,\ k+\dfrac{1}{4a}\right)

We have the vertex (2, -5) and the focus (2, -4).

Calculate the value of <em>a</em> using k+\dfrac{1}{4a}

<em>k = -5</em>

-5+\dfrac{1}{4a}=-4        <em>add 5 to both sides</em>

\dfrac{1}{4a}=1           <em>multiply both sides by 4</em>

4\!\!\!\!\diagup^1\cdot\dfrac{1}{4\!\!\!\!\diagup_1a}=4

\dfrac{1}{a}=4\to a=\dfrac{1}{4}

Substitute

a=\dfrac{1}{4},\ h=2,\ k=-5

to the vertex form of an equation of a parabola:

y=\dfrac{1}{4}(x-2)^2-5

The standard form:

y=ax^2+bx+c

Convert using

(a-b)^2=a^2-2ab+b^2

y=\dfrac{1}{4}(x^2-2(x)(2)+2^2)-5\\\\y=\dfrac{1}{4}(x^2-4x+4)-5

<em>use the distributive property: a(b+c)=ab+ac</em>

y=\left(\dfrac{1}{4}\right)(x^2)+\left(\dfrac{1}{4}\right)(-4x)+\left(\dfrac{1}{4}\right)(4)-5\\\\y=\dfrac{1}{4}x^2-x+1-5\\\\y=\dfrac{1}{4}x^2-x-4

3 0
3 years ago
150g increased by 5% how much does it weigh
blondinia [14]
150÷100=1.5
1.5×5=7.5
150+7.5= 157.5g
8 0
3 years ago
2(3 – 4a) + 5(a – 7)
PilotLPTM [1.2K]

Answer:

The answer is -(29+3a).

Step-by-step explanation:

=2(3-4a)+5(a-7)

= 6- 8a +5a -35

= 6-35-8a+5a

= -29-3a

= -(29+3a)

<em>Hope</em><em> </em><em>it helps</em><em>.</em><em>.</em>

6 0
3 years ago
Read 2 more answers
Other questions:
  • Compare A and B, if: 12.5% of A is equal to $b and 30% of B is equal to $3b
    14·1 answer
  • Describe the congruence transformation that maps quadrilateral ABCD to quadrilateral A'B'C'D'.
    9·1 answer
  • (a) Use the fundamental theorem of algebra to determine the number of roots for 2x^2+4x+7 show your work
    9·1 answer
  • Plz help..............
    15·1 answer
  • Evaliate each expression for the given value of x What is 2x+3 for x=3
    6·2 answers
  • You spend 1/2 of your allowance on Monday. On Tuesday, you spend 1/2 of the amount you have left. On Wednesday, you spend 1/2 of
    8·1 answer
  • Two thirds plus a number plus 4 is 7
    15·2 answers
  • I am offering 30 points and brainliest!!! and i will follow you​
    14·2 answers
  • Type your answer into the box.
    8·2 answers
  • Sales Hester sells televisions. She earns a fixed amount for each television and an additional $20 if the buyer gets an extended
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!