Answer:
-34
Step-by-step explanation:
2(4(-2) - 5) -6 + (-2)
= 2 (-8 - 5) - 6 - 2
-8 - 5
= (2)(-13) - 6 - 2
= -26 - 6 - 2
+6 to ( -6 ) and ( -26 )
= -32 - 2
= -34
Which linear inequality is graphed with y > –x – 2 to create the given solution set? y > x + 1 y x – 1 y < x + 1
Answer:
D
Step-by-step explanation:
I took the test, dont listen to the person above me:)
Answer:
y<x+1
Step-by-step explanation:
I need Part a, b, and c to be answered pleaser will give brainliest!!!! Will give 15 points!!
Answer:
[tex]parta = (3x \times (4x + 1)) \div 2 = 27 \\ [/tex]
partb = the answer of part a
partc = according to the information given
On the unit circle, which of the following angles has the terminal point coordinates (√2/2,-√2/2)
Answer:
Option B
Step-by-step explanation:
A unit circle means radius of the circle = 1 unit
Let a terminal point on the circle is (x, y) and angle between the point P and x-axis is θ.
Center of the circle is origin (0, 0).
Therefore, ordered pair representing the terminal point will be (OP×Cosθ, OP×Sinθ) = [tex](\frac{\sqrt{2} }{2},-\frac{\sqrt{2} }{2})[/tex]
OP.Cosθ = 1×Cosθ = [tex]\frac{1}{\sqrt{2}}[/tex]
Cosθ = [tex]\frac{1}{\sqrt{2}}[/tex]
θ = [tex]\frac{\pi }{4}+2\pi n[/tex], [tex]\frac{7\pi }{4}+2\pi n[/tex] where n = integers
Similarly, OP×Sinθ = 1×Sinθ = -[tex]\frac{1}{\sqrt{2}}[/tex]
Sinθ = -[tex]\frac{1}{\sqrt{2} }[/tex]
θ = [tex]\frac{5\pi }{4}+2\pi n[/tex], [tex]\frac{7\pi }{4}+2\pi n[/tex] where n = integer
Common value of θ will be, θ = [tex]\frac{7\pi }{4}[/tex]
Option B will be the answer.
In a meeting, there are five presenters: Lily, Catherine, Ted, Edward, and Bianca. Bianca must present after Edward but not immediately so. There must be one presenter between Bianca and Catherine Catherine must present immediately after Ted. At least two other people must present after Edward and before Ted. When must Lily present?
Answer:
Lily would present after Edward
Step-by-step explanation:
Catherine must present after Ted. Therefore we have Ted, Catherine.
There must be one presenter between Bianca and Catherine, therefore we have: Bianca, x, Catherine. x is the name of the presenter between Bianca and Catherine. Since Ted presents immediately before Catherine, x = Ted. This means we have Bianca, Ted, Catherine.
There must be at least two other people must present after Edward and before Ted. This means we have Edward, y, Bianca, Ted, Catherine. y is the name of the presenter between Edward and Bianca.. Since we have only five presenters, the only presenter remaining is Lily.
Therefore the presenters are arranged as:
Edward, Lily, Bianca, Ted, Catherine.
Lily is the second to present. Lily would present immediately after Edward and before Bianca
How many pounds of gourmet candy selling for 1.80 per pound should be mixed with 3 pounds of candy selling for 2.60 a pound to obtain a mixture selling for 2.04 per pound?
Answer:
L = 1.80 dollar/pound
H = 2.60 dollar/pound
T = 2.04 dollar/pound
Step-by-step explanation:
u = How much pounds of the L candy, unknown
V = 3 pounds, the H candy
How many edges does a solid with 11 faces and 11 vertices have?
Answer:
20
Step-by-step explanation:
Given: F = 11, C = 11, E=?
By Euler's formula, we have:
[tex]F + V - E = 2 \\ \therefore \: 11 + 11 - E = 2 \\ \therefore \:22 - E = 2 \\ \therefore \:22 - 2 = E \\ \huge \red{ \boxed{\therefore \: E = 20}}[/tex]
Hence, the solid will have 20 edges.
There are 22 edges for a solid with 11 faces and 11 vertices.
What is the definition of geometry?It is concerned with the geometry, region, and density of various 2D and 3D shapes.
Given data;
Faces,F = 11
Vertices,V = 11
Edge,E = ?
From Euler's formula;
F+V-E = 2
11+11-E =2
22-2 =E
E=20
Hence there are 22 edges for a solid with 11 faces and 11 vertices.
To learn more about geometry, refer to https://brainly.com/question/7558603.
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The ratio of the same side interior angles of two parallel lines is 33:3. Find the measures of all eight angles formed by the parallel lines and transversal.
9514 1404 393
Answer:
all 4 acute angles: 15 degrees
all 4 obtuse angles: 165 degrees
Step-by-step explanation:
The sum of same-side interior angles between parallel lines is 180°. The smallest of them will be 3/(33+3) = 1/12 of 180°, or 15°. The largest will be 180° -15° = (33/3)(15°) = 165°. All remaining angles are congruent to one or the other of these.
All four acute angles are 15°; all four obtuse angles are 165°.
Fred spent 1 ¼ hours studying for his exam. He spent ¼ of this time studying for measurement, how many hours did Fred spend studying for measurement? *
if x square plus 8x plus q =(x plus k) Square find the value of k and q
Answer:
The value of k is 4 and q is 16.
Step-by-step explanation:
First, you have to expand the brackets by applying :
[tex] {(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2} [/tex]
[tex] {x}^{2} + 8x + q = {(x + k)}^{2} [/tex]
[tex] {x}^{2} + 8x + q = {x}^{2} + 2kx + {k}^{2} [/tex]
Next, you have to do it by comparison :
[tex] {x}^{2} + 8x + q = {x}^{2} + 2kx + {k}^{2} [/tex]
[tex]by \: comparison[/tex]
[tex]8x = 2kx[/tex]
[tex]8 = 2k[/tex]
[tex]k = 4[/tex]
[tex]q = {k}^{2} [/tex]
[tex]q = {4}^{2} [/tex]
[tex]q = 16[/tex]
Find the area of the regular
pentagon.
5.5 cm
8 cm
Answer:
Area = 110 cm²
Step-by-step explanation:
You can find the area of a regular pentagon by finding the area of one of the triangles created by its central angle and multiplying it by 5.
1. Use the formula for the area of a triangle to find the area of the triangle formed by its central angle.
[tex]A = \frac{1}{2} bh\\\\A = \frac{1}{2}8(5.5)\\\\A = \frac{1}{2}44\\\\A = 22[/tex]
2. Multiply this area by 5 to get the area of the entire pentagon.
A = 22(5)
A = 110
Can someone please help me I really need help
Answer:
3 3/4
Step-by-step explanation:
1 5/12 2 1/3
First, we must convert the fractions to have the same denominator.
We can turn 2 1/3 is equal to 2 4/12.
1 5/12 + 2 4/12 = 3 9/12
Now we simplify.
3 9/12 = 3 3/4
I will mark Brainliest this is urgent
Answer:
CD = 7
Step-by-step explanation:
If BC = 7 and ACB ≈ DCE, if you continue the line through BC, you'll see that the rest of it is CD, meaning BC = CD giving you the answer.
Answer:
Solution ⇒ 7
Step-by-step explanation:
Let us list the Given;
[tex]ACB = DCE,\\AC = 5 units,\\BC = 7 units[/tex]
Knowing that Δ ACB ≅ Δ DCE, by CPCTC we can consider the following;
[tex]AC = CD,\\BC = CE,\\AB = DE[/tex]
If we have to find the length of CD, given BD = 7 units;
[tex]CD = 7\\Conclusion, 7[/tex]
A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B? A 6 B 10 C 7 D 5
Answer:
B would be 10
Step-by-step explanation:
so if B is 10 then A is 12 And C is 5 when added together they all equal 27
Answer:
b=10 years old
Step-by-step explanation:
a=2x+2
b=2x
c=x
2x+2+2x+x=27
5x+2=27
5x=25
x=5
b=2x (2*5)=10
The graph of an absolute value function has a vertex at (–2, 3) and passes through the point (–1, 0). Using transformations of the parent function, has the graph been dilated by a scale factor other than 1? Explain.
Answer:
The answer to this question can be defined as follows:
Step-by-step explanation:
Given vertex:
(-2,3) and (-1,0)
finding slope:
[tex]\bold{Formula:}\\\\\bold{m=\frac{y_2-y_1}{x_2-x_1}}[/tex]
[tex]y_2=0\\y_1=3\\x_2=-1\\x_1=-2[/tex]
[tex]\ M= \frac{0-3}{-2-(-1)}\\\\\ M= \frac{0-3}{-2+1}\\\\\ M= \frac{-3}{-1}\\\\\ M= 3[/tex]
According to the slope value, its value is greater than 1 that's why the graph has been dilated.
Answer:
Yes, the graph has been dilated.
Using the standard form of the equation, substitute in the values: h = –2, k = 3, x = –1, and y = 0.
Solve the equation to get a = –3.
Graphically, the parent function follows the pattern of right 1, up 1. Moving 1 unit to the right from the vertex, you can move down 3 units to get to the point (–1, 0), so it has been horizontally compressed.
Step-by-step explanation:
Step-by-step explanation:
Edg 2020
In the triangle below, what is the tangent of 60?
Answer: C.
[tex]\sqrt{3}[/tex]
Step-by-step explanation:
tan 60°=sm(60°)/cos(60°)
Answer: B.
Step-by-step explanation:
Please help me I posted this 10 times and no one helped me they were saying how I was so dumb
Answer:
Just count the unit squares
Step-by-step explanation:
If you learn this they may call u dumb but if your beginner then count the squares
can someone help asap
Answer:
1/3
Step-by-step explanation:
7/12 - 3/12= 4/12= 1/3
Given:
AC – AR
<1 = <2
Prove:
<3 =<4
Answer:
Proved: <3 =<4
Step-by-step explanation:
Alternate angles are equal
<1 = <4
<2 = <3
AC ≅ AR (Given)
Where ≅ means congruent to
When two straight lines intersect, the Vertical angles have opposite sides that are equal.
<CAR ≅ <TAD
<CAT ≅ <RAD
From the above
∆CAR is congruent to ∆TAD
This is a side angle side theorem
∆CAT is congruent to ∆RAD
This is a side angle side theorem
The side angle side theorem shows that two sides and an included angle of one triangle are equal to two sides and an included angle of another triangle.
Since corresponding parts of congruent angles are equal, <3 is congruent to <4.
<3 ≅ <4
A model rocket is launched from ground level. Its height, h meters above the ground, is a function of time t seconds after launch and is given by the equation h=-4.9t^2+68.6t What would be the
maximum height, to the nearest meter, attained by the model?
Answer:
240 m to nearest meter.
Step-by-step explanation:
h = -4.9t^2 + 68.6t
We need to convert this to vertex form to find the maximum value of h:
h = -4.9(t^2 - 14t)
h = -4.9[(t - 7)^2 - 49]
h = -4.9(t - 7)^2 + 240.1
So maximum height is when t = 7 and it's 240.1 meters.
Andros has an oil fired heating system. In a 30-day period he used a full tank of oil at a constant rate per day. At a different time of the year the amount of oil Andros uses per day is 1 3 of the rate used in the 30-day period. (a) How many days should a full tank of oil?
Step-by-step explanation:
30 days period multiply by 7 days
=210 therefore our answer is =210
Sound waves are emitted from a fishing boat. Some of the sound waves are reflected by fish and detected back at the boat.The shortest time between the sound waves being emitted and detected is 0.26 s. The speed of sound in water is 1500 m/s.A) Calculate the distance between the boat and the nearest fish.
Answer:
195 m.
Step-by-step explanation:
The time for the sound waves to reach the fish is 0.26/2 = 0.13 seconds.
Distance = speed * time
= 1500 * 0.13
= 195 m.
2 1/3 divide 1/4 answer in simplest form
Answer:
[tex]9\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]2\frac{1}{3} \div \frac{1}{4}[/tex]
[tex]\frac{7}{3} \div \frac{1}{4}[/tex]
[tex]\frac{7}{3} \times \frac{4}{1}[/tex]
[tex]\frac{7 \times 4}{3 \times 1}[/tex]
[tex]\frac{28}{3}[/tex]
[tex]9\frac{1}{3}[/tex]
[tex]9 \frac{1}{3} \\ solution \\ 2 \frac{1}{3} \div \frac{1}{4} \\ = \frac{7}{3} \times \frac{4}{1} \\ = \frac{7 \times 4}{3 \times 1} \\ = \frac{28}{3} \\ = 9 \frac{1}{3} [/tex]
Hope it helps...
Good luck on your assignment....
Circle V is shown. Line segments Y V and W V are radii. Tangents Y X and W X intersect at point X outside of the circle. The length of V Y is 5. Angle V is a right angle. What is the measure of circumscribed ∠X? 45° 50° 90° 95°
Answer:
(C)[tex]90^\circ[/tex]
Step-by-step explanation:
Theorem: The angle between a tangent and a radius is 90 degrees.
Given that
YV and WV are radiiYX and WX are tangent lines.By the theorem stated above:
[tex]\angle VYX =90^\circ\\\angle VWX =90^\circ[/tex]
We are told that Angle V is a right angle.
Therefore, in the quadrilateral VWXY
[tex]\angle VYX+\angle VWX+\angle V+ \angle X =360^\circ\\90^\circ+90^\circ+90^\circ+ \angle X =360^\circ\\270^\circ+ \angle X =360^\circ\\\angle X =360^\circ-270^\circ\\\angle X =90^\circ[/tex]
The measure of circumscribed ∠X is 90 degrees.
Answer:
90
Step-by-step explanation:
what is the solution to this inequality x/10+6≥8
Answer:
x ≥ 20
Step-by-step explanation:
First, we want to isolate x. We can start to do that by subtracting 6 to both sides.
x/10≥2
Now, we multiply each side by 10.
x ≥ 20
That's the answer, all values above or equal to 20 are solutions.
Answer:
The answer is x_> 20
Step-by-step explanation:
A tram moved upward 18 meters in 6 seconds at a constant rate. what was the change in the trams elevation each second?
Answer:
3 meters per second.
Step-by-step explanation:
Change in elevation = distance / time
= 18/6
= 3 meters / second.
.
Convert 2.1 x 10^5 to ordinary form
Answer:
2.1 x 10^5 = 210,000.
Step-by-step explanation:
Convert 2.1 x 10^5 to ordinary form
10^5 = 100000
2.1 = 21/10
Thus.
2.1 x 10^5 = 21/10 * 100000 = 210,000
Ordinary form of 2.1 x 10^5 is 210,000.
What is the measure of angle ABC?
Answer:
25°
Step-by-step explanation:
its between 20° and 30°
Un edificio proyecta una sombra de 20 m de longitud. Si el angulo de la punta de la sombra a un punto de la parte alta del edificio es de 69° ¿Que altura tiene el edificio?
Answer:
52 metros.
Step-by-step explanation:
En este caso debemos usar las identidades trigonométricas. La información por medio del enunciado es:
*Sombra proyectada, que mide 20 metros y sería el cateto adyacente
*Ángulo de inclinación que son 69°
Con estos datos podemos calcular el cateto opuesto que sería altura, por medio de la identidad de la tangente:
tan α = CO/CA
CO = tanα * CA
CO = tan(69) · 20 m
CO = 52 metros
Lo que quiere decir que la altura del edificio es de 52 metros.
HELP! URGENT PLEASE!
Answer: -7
Step-by-step explanation:
-3 is across from -7 on the chart, so -7 is the x that houses with the f(x) -3
Which one doesn't belong, and why? Please explain!! please help!
Answer:
The answer is y = -4x + 5 because this line is the only line that has a negative slope. We know because the other lines have slopes of 4, 1/4 and 4.
