Answer:
40.2
Step-by-step explanation:
law of cosines
x^2=40^2+28^2-2*28*40*cos(70)
put in calculator and square root the answer
40.222.... is approximately 40.2
What calculation is modeled on the number line?
Answer:
top right
Step-by-step explanation:count how mnay it goes back each time
Answer:
Top right box
Step-by-step explanation:
Please help me I really need help
Answer:
A, C
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
the ∠A is adjacent (adj) to AB and opposite (Opp) of BC and AB is the hypotenuse (Hyp) of the triangle
which one of the above trig functions fits that?
sin(Ф) = BC / AC is sin(Ф)= Opp / Hyp , so choice A) works
cos(Ф) = BC / AC is not cos(Ф) = Opp / Hyp so choice B) does not work
cos(Ф) = BA / AC is cos(Ф) = Adj / Hyp so choice C) works
AC / BC is just a ratio it's not the angle , so D) doesn't work
Determine the length of GH. Round to the nearest tenth.
3.9 cm
G
52
642
H
Answer:
|GH| = 5,7 cm
Step-by-step explanation:
To know |GH|, you first need to find the length of |GD|.
We can calculate |GD| by;
cosG = |GC| / |GD|
<=> |GD| = |GC| / cosG
=> |GD| = 3,9 cm/ 0,62 = 6,33 cm
We now can easily calculate |GH| with the sinus of angle D;
sinD = |GH| / |GD|
<=> |GH| = sinD.|GD|
=> |GH| = 0,899.6,33 cm = 5,694 cm => 5,7 cm
I hope i did not make a mistake ...
Can you explain how to solve this
number 2 pls, asap! i need this for practice for finals
Answer:
C. a = 6
Step-by-step explanation:
Use the Pythagorean theorem
[tex]a^{2} + 8^{2} = 10^{2}[/tex]
[tex]a^{2}[/tex] + 64 = 100
[tex]a^{2}[/tex] = 36
a = 6
c) Convert the following from standard notation to scientific notation.
Depth of the deepest part of the ocean: 10,900 meters
Answer:
1.09x10^4
Step-by-step explanation:
The radius of a circle is doubled. Which of the following describes the effect of this change on the area? PLZZZ HELP!!! THE RED IS THE QUESTION I GOT WRONG
Answer:
The area is multiplied by 4
Step-by-step explanation:
The area of a circle is directly proportional to its square radius so if the radius is increased by x, the area will be increased by x ^ 2
Answer:
The area is multiplied by 4.
Step-by-step explanation:
A linear function that represents the number of hot dogs purchased at a football game is compared to a different linear function that represents the time left in the game. Describe the key features of the functions that are needed to determine if these lines intersect.
The key features needed are the slopes and y-intercepts. If the slope and the y-intercept are the same then there are infinite amounts of intersections. If the slope is the same and the y-intercept is different then they will never intercept. Of the slope and the y-intercept are different, then they will intersect at one point.
if using the method of completing the square to solve the quadratic equation x^2-20x+24=0x
2
−20x+24=0, which number would have to be added to "complete the square"?
Considering the equation of the parabola in vertex form, it is found that a number of -100 would have to be added to complete the square.
What is the equation of a parabola given it’s vertex?The equation of a quadratic function, of vertex (h,k), is given by:
[tex]y = a(x - h)^2 + k[/tex]
In which a is the leading coefficient.
In this problem, the equation is:
[tex]x^2 - 20x + 24[/tex]
Placing it in vertex form, we would have:
[tex](x - 10)^2 + 24 + c[/tex]
Applying the square of the subtraction:
[tex](x - 10)^2 = x^2 - 20x + 100[/tex]
Hence, a number of -100 would have to be added to complete the square.
More can be learned about equation of a parabola in vertex form at https://brainly.com/question/17987697
2. What are the current values and appreciation rates of the two coins you selected?
Step-by-step explanation:
You should pick the coin that is cheap but one that also has a high inflation value. You should graph out the rate of increase per year to see if the coins are worthy of investing upon
Find the area of right triangle ABC.
Answer:
16 sq. unit
Step-by-step explanation:
Area = ½ × base × height
= ½ × 8 × 4
= 16 sq unit
Would the graph showing the speed of a car over the course of time be a real example of a continuous function?
Answer:
where is the graph
Step-by-step explanation:
but off the top of my head
it would not be because the speed of a car has no relation to the course of time.
mrk me brainliest plzz
Y=2x+3 and y=x+2 what is the x,y
Answer:
x=-1, y=1
Step-by-step explanation:
Answer:
( -1, 1 )
Step-by-step explanation:
To solve, graph the equations and find the point of intersection.
when graphed these equations intersect at (-1, 1)
To double-check and make sure it's correct, plug in a solve.
x = -1
y = 1
y = 2(-1) + 3
1 = 2(-1) + 3
1 = -2 + 3
1 = 1
y = x + 2
1 = (-1) + 2
1 = 1
Please help! my friend needs help with his grade 11 math homework! Thank you
Answer:
a) the first negative number will be -1
b) A, B and C
c) 0.3
Step-by-step explanation:
What is 1 3/7 divided by 3 3/14 as a simplified fraction
the answer would be 4 9/14
4 9/14
Answer:
4 9/14
Step-by-step explanation:
SHOW YOUR WORK!!!!
At a pizza shop, customers can select either crispy crust (C) or deep crust (D). Suppose that two customers place an order and select their crust. What is the sample space for this action?
Answer:
A pizza shop offers 3 different toppings and 2 types of crust. How many possible types of pizza can you order if each pizza can have one, two, or three different toppings?
Step-by-step explanation:
Answer:
There are 2 outcomes they could've each chosen c or d or one chose c one chose d or the opposite way around
Step-by-step explanation:
HEY! help pleaseee :)
Answer:
97
Step-by-step explanation:
Answer:
Hello! answer: x = 12
Step-by-step explanation:
This is a complementary angle meaning it will add up to 90 degrees 12 + 42 = 54 3 × 12 = 36
54 + 36 = 90 therefore x = 12 HOPE THAT HELPS!
18x-12=
24x+48=
45x_81=
8x+15=
Answer:
1) 6(3x-2)
2) 24(x+2)
3) 9(5x−9) or 9(5x+9) if you meant to put addition.
4)8x+15
scientific Notation helpppppp ;-;
Answer:
7
Step-by-step explanation:
[tex]2.8 \times {10}^{5} = 2.8 \times 100000 = 280000 \\ 4 \times {10}^{4} = 4 \times 10000 = 40000 \\ 280000 \div 40000 = 7[/tex]
Consider the quantic (power of five) function p(x) = 4x5 + 32x2
.
a) Fully factor the polynomial.
b) Use the factored form that your obtained from part a) to sketch the graph of y = p(x).
Label two points on the graph.
10. From the quantic function in question 9, if Lisa took the graph of y = p(x) and applied the
following transformations to produce the new function g(x). (4 marks)
Step 1: Vertical stretch by a factor 2.
Step 2: Vertical translation one unit up.
How may zero(s) does new function g(x) have? Sketch a possible graph and explain your
reasoning
Answer:
uu<uuuu<uuuu<uuuuuuuu
plz plz plz help i'll give 10pts
DON'T ANSWER WITH A LINK :)
Answer:
40 shots total.
Step-by-step explanation:
First, change the percentage to a decimal:
80% = 80/100 = 0.80
Next, divide the amount of baskets made (32) with the decimal gotten to get the total amount of shots:
32/0.80 = 40
Brandon took a total of 40 shots.
Check. Divide 32 (shots made) with the 40 (total shots in all):
32/40 = 0.8 = 80%.
~
you bet your friend $5 that you could say the alphabet backwards. You lost. so you bet your friend double or nothing. Assume this continues forever. Write the equation for your balance over time
Answer:
zyxttfhtyhrgdkouk.
Step-by-step explanation:
Can anyone help with this? I don't get what their asking
Answer:
7b(4b+4c)-3c(4b+4c)
28b²+28bc-12bc-13c²
hope this helps
sorry dunno the other
The formula for the probability of something happening is
Answer:
i don't know
Step-by-step explanation:
maybe x=something happend
1/x
y=x+12
y=-18
jhbnm
hfgklhkhvhgnkgvnbmn
Answer:
x=-30
Step-by-step explanation:
................
Identify the area of the figure. HELP ASAP PLEASE!!!
Answer:
Match each wave characteristic to its description.
frequency
wavelength
amplitude
the number of cycles of a wave per second
arrowRight
the distance between adjacent crests or troughs
arrowRight
the height of a wave from its equilibrium position
arrowRight
help
Step-by-step explanation:
For what value(s) of x is the equation not true?
Answer:
The equation is not true at x = -7.
Step-by-step explanation:
At x = -7 we'd have division by zero, which is not defined (not allowed).
Suppose two triangles are similar and one pair of sides of the triangles are congruent. Are the triangles necessarily congruent? Explain your reasoning.
Answer:
Yes. For the triangles to be similar, all of the sides have to be proportionate to its corresponding side. If the ratio of one of the pairs sides of the triangles is 1:1, then all of the pairs of sides on the triangles have to also have a ratio of 1:1. Using this, according to SSS postulate, the two triangles are similar. With the given information, either both triangles are congruent, or they are not similar.
Step-by-step explanation:
Use the following trinomial to answer the questions. x^2-6x-27 When going through the process of determining the factors, the two factors need to : add up to ___ multiply to ___
Answer:
The factors are 3 and -9
Step-by-step explanation:
The given trinomial is [tex]x^2-6x-27[/tex].
We need to find two factors. We know that,
3(9) = 27
So,
[tex]x^2-6x-27[/tex] can be written as :
[tex]x^2+3x-9x-27[/tex] as two factors add up to get -6 and multiply to get -27.
Hence, the factors are 3 and -9.
If x=9 units, y= 3 units and h= 8 units find the area of the rhombus shown about using decomposition
Answer:
72 sq. units
Step-by-step explanation:
Find the diagram attached
The rhombus is the area of the two triangles and the rectangle
Area of triangle = 1/2 * base * height
Area of triangle = 1/2 * y * h
Area of triangle = 1/2 * 3 * 8
Area of triangle = 3 * 4
Area of triangle = 12 sq.units
Area of 2 triangle = 2(12) = 24 sq. units
Area of the rectangle = length * width]
Area of the rectangle = h (x-y)
Area of the rectangle = 8(9-3)
Area of the rectangle = 8 * 6
Area of the rectangle = 48 sq. units
Area of the rhombus = 24 + 48
Area of the rhombus = 72 sq. units