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3 years ago

Heyo, algebra is giving me a headache, help me with this pls?

Mathematics

2 answers:

GenaCL600 [577]3 years ago

8 0

Option C 41 is correct answer.

harkovskaia [24]3 years ago

5 0

Answer:

H: 41

Step-by-step explanation:

upfront charge = 36

each cone costs .52

sell price 1.40

(sell price - cone cost) * number of cones - upfront cost =0 to find where break even is

-36+(1.40-.52)*x=0

-36+.88x=0

.88x=36

x=40.90

need to round up to break even to 41

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Which is the graph of f(x) = (x – 1)(x + 4)?

Arada [10]

Answer:

The fourth graph (last graph)

Step-by-step explanation:

Remember that the zeros of a function are the x-intercepts of the graph. To find the zeros we just need to set the function equal to zero and solve for x:

$f(x)=(x-1)(x+4)$

$(x-1)(x+4)=0$

$x-1=0,x+4=0$

$x=1,x=-4$

Now we know that the graph or our function intersects the x-axis at x = 1 and x = -4.

Since both x values inside the parenthesis are positive, our parabola is opening upwards.

The only graph opening upwards whose x-intercepts are x = 1 and x = -4 is the fourth one.

We can conclude that the graph of $f(x)=(x-1)(x+4)$ is the fourth one.

5 0

3 years ago

Read 2 more answers

Gave needs 60 liters of 40% acid solution he currently has 20% solution and 50% solution how many liters of each does he need to

murzikaleks [220]

percent ---------------- quantity
Acid type I 60.00% ---------------- x liters
acid type II 30.00% ------ 60 - x liters
Mixture 40.00% ---------------- 60
Total 60 liters
60.00% x + 30.00% ( 60 - x ) = 40.00% * 60
60 x + 30 ( 60 - x ) = 2400

6 0

3 years ago

an aircraft flew 5 hours with the wind. the return trip took 6 hours against the wind. if the speed of the plane in still air is

olga2289 [7]

w = 37.846 mph (wind rate)
plane speed in still air: 492 mph

7 0

3 years ago

Which symbol makes a true statement? –2.75 ? –3 A. = B. > C.

Iteru [2.4K]

–2.75 > –3

answer is B. >

7 0

3 years ago

What is the x intercept of the equation that passes through (1,-6) and is perpendicular to y=1/3x +1

fomenos

$\bf y=\stackrel{slope}{\cfrac{1}{3}}x+1\impliedby \textit{slope of this line, so a perpendicular will be}
\\\\\\
\textit{perpendicular, negative-reciprocal slope for}\quad \cfrac{1}{3}\\\\
negative\implies -\cfrac{1}{ 3}\qquad reciprocal\implies - \cfrac{ 3}{1}\implies -3\\\\
-------------------------------\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1\\
&&(~1 &,& -6~)
\end{array}$

$\bf slope = m\implies -3
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-6)=-3(x-1)
\\\\\\
y+6=-3x+3\implies 0+6=-3x+3\implies 3=-3x\implies \cfrac{3}{-3}=x
\\\\\\
-1=x\qquad \qquad \qquad \qquad \qquad \qquad \qquad (~-1~,~0~)$

8 0

3 years ago