Answer: C. [tex]265.9^{\circ}F[/tex]
Step-by-step explanation:
Given: The formula below can be used to find D, the difference in temperature between the pan and the room after t minutes.
[tex]D = 338e^{-0.03t}[/tex]
At t= 8 minutes, we get
[tex]D = 338e^{-0.03(8)}\\\\\Rightarrow\ D = 338e^{-0.24}\\\\\Rightarrow\ D = 338(0.786627861067)\\\\\Rightarrow\ D = 265.88\approx265.9^{\circ}F[/tex]
The approximate temperature of the pan after it has been away from the heat for 8 minutes= [tex]265.9^{\circ}F[/tex]
I need help on this please
Evaluate the expression 4+x3. When x is 3.
a. 12
b. 36
c. 31
d. 49
??
Answer:
a
Step-by-step explanation:
Sarah can spend at most $9.00 on oranges and almonds. She buys a bag of oranges for $3.50. At most, how much can Sarah spend on almonds?
Subtract the cost of the oranges from what she can spend:
9.00 - 3.50 = 5.50
At most she can spend $5.50
Audrey bought one pound of strawberries for $3.20. What is the price, in dollars per ounce of strawberries?
Answer: $0.20
Step-by-step explanation:
There are 16 ounces in 1 pound, so divide $3.20 by 16 to get the price of dollars/ounce
3.20/16 = $0.20/ounce
Answer:
$0.20 or 20 cents
Step-by-step explanation:
We know she pays $3.20 per pound, and that there are 16 ounces in a pound, so we can just divide to figure it out.
3.20 / 16 = 0.20
We can check our answer by doing the inverse of operations (multiplying)
16 x 0.20 = 3.20
So, she the price for an ounce of strawberries is $0.20 (20 cents). I hope this helps :)
120 < 12k + 29 need help plz answer for 15 points
Answer:
k>91/12
Step-by-step explanation:
120<12k+29
12k>120-29
12k>91
k>91/12
The answer choices are 11 1 2.48 6
Answer:
The ball reached its maximum height of ([tex]11\ yards[/tex]) in ([tex]1\ second[/tex]).
Step-by-step explanation:
This question is essentially asking one to find the vertex of the parabola formed by the given equation. One could plot the equation, but it would be far more efficient to complete the square. Completing the square of an equation is a process by which a person converts the equation of a parabola from standard form to vertex form.
The first step in completing the square is to group the quadratic and linear term:
[tex]h(t)=-5t^2 + 10t + 6\\\\h(t) = (-5t^2 + 10t) + 6[/tex]
Now factor out the coefficient of the quadratic term:
[tex]h(t)=-5(t^2 -2t) + 6[/tex]
After doing so, add a constant such that the terms inside the parenthesis form a perfect square, don't forget to balance the equation by adding the inverse of the added constant term:
[tex]h(t) = -5(t^2 -2t) + 6\\\\h(t) = -5(t^2 -2t + 1 -1 ) + 6[/tex]
Now take the balancing term out of the parenthesis:
[tex]\\\\h(t)=-5(t^2 -2t + 1) + 6 + ((-1)(-5))[/tex]
Simplify:
[tex]h(t) = -5(t^2 -2t + 1) + 6 + 5\\\\h(t) = -5(t-1)^2 + 11[/tex]
The x-coordinate of the vertex of the parabola is equal to the additive inverse of the numerical part of the quadratic term. The y-coordinate of the vertex is the constant term outside of the parenthesis. Thus, the vertex of the parabola is:
[tex](1, 11)[/tex]
PLease help!!! I'll give brainliest and the rest!
Answer:
I would say 21 because if you did the equation right the answer for be is 18. It could round to 17, 19, 20 but not 21.
Step-by-step explanation:
Hope this helps.
question should show! if it doesn't let me know
Answer:
there are 6 faces
Step-by-step explanation:
there are 4 faces around and 1 on to and 1 on the bottom
Triangle DEG is congruent to triangle?
Answer:
ΔDEG ≅ ΔFGE
Side-Angle-Side
Step-by-step explanation:
DG ║ EF because DG⊥DE and GF⊥EF
∠DGE ≅ ∠FEG because alternate interior angles of parallel lines are congruent
so Side-Angle-Side proves congruency
Write the expression without the fraction bar.
Which expressions are equivalent to the given expression?
Answer:
(a). and (b).
Step-by-step explanation:
Simplify Square Roots -
Find one perfect square and one imperfect square to multiply to the square root.
[tex] \sqrt{4 \times 10} = 2 \sqrt{10} [/tex]
[tex]40^{ \frac{1}{2} } = \sqrt[2]{(40) ^{1} } = \sqrt{40} [/tex]
[tex] \sqrt{40} \neq 4 \sqrt{10} [/tex]
[tex]160 ^{ \frac{1}{2} } = \sqrt[2]{160 ^{1} } = \sqrt{160} \neq \: \sqrt{40} [/tex]
[tex]5 \sqrt{8} \neq \: \sqrt{40} [/tex]
Graph triangle DEF with vertices D(-5,2), E(1,3), and
F(-4,-3). Then graph the image of the triangle after it
is translated 4 units right and 3 units down.
What are the vertices of triangle D'E'F?
Answer:
i think
E'(5,0)
D'(-1,-1)
F'(0,6)
a rectangular container, 12 cm long and 10 cm wide, is filled with water to a depth of 5 cm. find the volume of water in the container.
Plz i need help ASAP!!!!
Thank you!
Answer:
600 cm³
Step-by-step explanation:
12 x 10 = 120
120 x 5 = 600
[tex]\frac{\sqrt[3]{60} }{\sqrt[3]{36} }[/tex]
Please show your work.
Step-by-step explanation:
[tex]\tt{} \frac{ \sqrt[3]{60} }{ \sqrt[3]{36} } [/tex]
[tex]\tt{} \frac{ \sqrt[3]{5} }{ \sqrt[3]{3} } [/tex]
[tex]\tt{} \frac{ \sqrt[3]{5} }{ \sqrt[3]{3} } \times \frac{ \sqrt[3]{ {3}^{2} } }{ \sqrt[3]{ {3}^{2} } } [/tex]
[tex]\tt{} \frac{ \sqrt[3]{5} \sqrt[3]{ {3}^{2} } }{ \sqrt[3]{3} \sqrt[3]{ {3}^{2} } } [/tex]
[tex]\tt{} \frac{ \sqrt[3]{5 \times {3}^{2} } }{ \sqrt[3]{3 \times {3}^{2} } } [/tex]
[tex]\tt{} \frac{ \sqrt[3]{5 \times 9} }{ \sqrt[3]{ {3}^{3} } } [/tex]
[tex]\tt{} \frac{ \sqrt[3]{45} }{3}[/tex]
[tex]\tt{}1.18563[/tex]
Find the greatest common factor of 30, 70, and 20.
Answer:
10
Step-by-step explanation:
10 goes into 30, 70, and 20.
A recipe for banana bread calls for 4 bananas for every 8 cups of sugar. What is the ratio of bananas to cups of sugar
Answer:
1:2 is the ratio
Step-by-step explanation:
Given the following equation answer each question below.
Is the following a growth or decay?
What is the domain?
What is the range?
What is the y-intercept? (enter answer as a point)
What is the asymptote? (enter answer as an equation)
Answer:
f(x)=
Step-by-step explanation:
which angle is complementary to ∠4?
Item 11 Which points divide overline AB into segments with lengths in the ratios 1:3 or 3:1?
Answer:
(9, 2)
Step-by-step explanation:
What point divides the directed line segment AB¯¯¯¯¯ into a 3:1 ratio?
coordinate plane with segment A B with A at (0, 2) and B at (12, 2)
(3, 2)
(4, 2)
(8, 2)
(9, 2)
Solution:
If point O(x, y) divides the line segment AB with endpoints A([tex]x_1,y_1[/tex]) and B([tex]x_2,y_2[/tex]) in the ratio n:m, the coordinates of O is:
[tex]x=\frac{n}{n+m} (x_2-x_1)+x_1\\\\y=\frac{n}{n+m} (y_2-y_1)+y_1[/tex]
Let us assume C(x, y) is the point that divides segment A B with A at (0, 2) and B at (12, 2) in the ratio 3 : 1. Hence:
[tex]x=\frac{3}{3+1}(12-0)+0=\frac{3}{4}(12)=9 \\\\y=\frac{3}{3+1}(2-2)+2=\frac{3}{4}(0)+2=2[/tex]
Therefore the coordinate of point C is at (9, 2).
On a coordinate plane, a line goes through (0, 3) and (3, negative 1). A point is at (negative 3, 2).
What is the equation of the line that is parallel to the given line and passes through the point (−3, 2)?
Answer:
Step-by-step explanation:
Slope of line passing through (0, 3) and (3, -1) = (-1-3)/(3-0) = -4/3
Slope of any parallel to the line is also -4/3.
Point-slope equation for line of slope -4/3 that passes through (-3, 2):
y-2 = (-4/3)(x+3)
Determine the missing side length:
I will give 25 points for the answer!!!!!!!!
Answer:
3
Step-by-step explanation:
Use Pythagorean theorem
Base²+ altitude² = hypotenuse²
Base² + (√3)² = (2√3)²
Base² + √3 *√3 = 2√3 *2√3
Base² + 3 = 4*3
Base² + 3 = 12
Base² = 12 - 3
Base² = 9
Base = [tex]\sqrt{9}=\sqrt{3*3} =3[/tex]
what is the volume of this composite solid?
A. 156 cubic meters
B. 86 cubic meters
C. 136 cubic meters
D. 84 cubic meters
Answer:86
Step-by-step explanation:I did some math it’s 86 or 156 but I’m pretty sure it’s 86
PLS I NEED RELLAY NEED HELP RIGHT NOW
Answer:
40%
Step-by-step explanation:
[tex]\frac{8}{20} = \frac{2}{5}[/tex]
[tex]\frac{2}{5} = 0.40[/tex]
0.40 = 40%
Please help!!!!!!! I need it fast
Answer:
i believe that the answer is C 19cm
Answer:
I think A
Step-by-step explanation:
the circle is 6 cm and the circumference(the distance between the thing) is 9 cm
Area and radius!! VUGGFYFYTFTYFYTFTYCYTCYTFYT
Answer:
1. (-2, 3) 7
2. (5, 8) 5
3. (-6, 1/2) 2/3
Step-by-step explanation:
The equation of a circle is (x-h)^2+(y-k)^2=r^2 where the center is at point (h, k) and the r is the radius. Find the values that would fit the numbers in parenthesis to find the center of the circle, and take the squareroot of the number on the right side of the equation to find the radius.
lmk if im wrong, hope this helps!
pls help me
A movie theater sells snacks to 30% of its customers each day. On Saturday, 186 customers bought snacks. How many customers went to the theater on Saturday?
A. 242
B. 520
C. 558
D. 620
Answer:
it would be A
Step-by-step explanation:
hopefully it helped
Select the ratios that are equivalent to 11:1.
Choose 3 answers:
A-1:11
B-22:2
C-55:5
D-9:99
E-110:10
Answer:
i think the answer is B . 22::2
1. A company buys a digital scanner for $12,000. The value of the scanner is 12,000 (1 – 3) after n years. The
company has budgeted to replace the scanner when the trade-in value is $2,400. After how many years should the
company plan to replace the machine in order to receive this trade-in value?
Points Q and P on the coordinate grid below show the positions of two midfield players of a soccer team: Coordinate grid shown from negative 4 to positive 4 on x-axis and negative 4 to positive 4 on y-axis. From the origin, point P is 1.5 units to the left and 3 units down. From the origin, Q is 1.5 units to the left and 3 units up Which statement best describes the relationship between the positions of the two midfield players?
Answer:
yaaaaas i think it is c
Step-by-step explanation:
Answer:
Q is P reflected across the x-axis; only the signs of the y-coordinates of P and Q are different.
Step-by-step explanation:
Hope this helped :)
If a box of 100 pencils
costs $4.25, what
would you expect to
pay for 224 pencils?
Answer:
$9.52
Step-by-step explanation:
4.25 divided by 100 gets you 0.0425 then multiply that number by 224