Answers
Answer:
Cos A 4/5 so the answer is d
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Remark
The tangent is described as the ratio of the side opposite the reference angle divided by the side adjacent to the reference angle.
In this case
The reference angle is B
The side opposite is AC and it has a value of 4
The side adjacent is BC and it has a value of 3
Hypotenuse
If you are finding either the sine or cosine of any angle, you need the hypotenuse.
AB^2 = 4^2 + 3^2 = 16 + 9
AB^2 = 16 + 9
AB^2 = 25
Take the square root of 25
AB = 5
Cos(A)
The cos(A) = adjacent / hypotenuse
Adjacent = AC = 4
Hypotenuse = AB = 5
Cos(A) = a/h
Cos(A) = 4/5 which is D
Related Questions
Alfie has £10 note He buys 3 pens costing 1.45 each and some pencils costing 90p He gets 2.05 change. How many pencils did he buy?
Answers
Answer:
4 pencils
Step-by-step explanation:
Note= pencils costing 0. 90p
Given data
Balance= £10
pen= 3*1.45= £4.35
pencils=0.90p
change= £2.05
2.05= 10-4.35-90p
solve for p
2.05= 5.65-90p
collect like terms
5.65-2.05= 0.90p
3.6=90p
divide both sides by 90
p=3.6/0.90
p=4
what is exponential form of b•b•b•c•c
Answers
Answer:
b^3 + c^2
Step-by-step explanation:
b^3 * c^2
Explanation:
Here we see that there are 3 B’s being multiplied against each other. This can be written as b^3, because b^3 also represents b*b*b.
Next, there are two c’s being multiplied against each other. This can be written as c^2, because c^2 also represents c*c.
Now that we have found what the exponents are we can multiple both b^3 and c^2 to get our final answer of:
b^3 * c^2
I hope this helps!!
-Kay :)
Given the functions f(x) = x ^ 3, g(x) = 9 and h(x) = 2x , what is an expression equivalant to f(2x) + 3g(x)/h(x) + 3?
Answers
Answer:
an expression equivalent to f(2x) + [tex]3\frac{g(x)}{h(x)}[/tex] + 3 = 8x³ + [tex]\frac{27}{2}x[/tex] + 3
Step-by-step explanation:
As given ,
f(x) = x³ , g(x) = 9 , h(x) = 2x
Now,
f(2x) = (2x)³ = 2³.x³ = 8x³
⇒f(2x) = 8x³
Now,
[tex]\frac{g(x)}{h(x)} = \frac{9}{2x} = \frac{9}{2}x[/tex]
⇒[tex]3\frac{g(x)}{h(x)} = 3.\frac{9}{2}x = \frac{27}{2}x[/tex]
∴ we get
f(2x) + [tex]3\frac{g(x)}{h(x)}[/tex] + 3 = 8x³ + [tex]\frac{27}{2}x[/tex] + 3
Which ordered pair is a solution of y > 5x-2?
(3,13)
(1,5)
(2,7)
(4,4)
Answers
lol
Step-by-step explanation:
Write an equivalent expression by distributing the "-−" sign outside the parentheses: -(-4.2w-7x-5.4)
Answers
Answer: 4.2*w + 7*x + 5.4
Step-by-step explanation:
Here we need to remember how the product of different signs works, here is the rule:
(+)*(+) = (+)
(+)*(-) = (-)
(-)*(+) = (-)
(-)*(-) = (+)
Now we want to distribute the negative sign in the equation:
"-(-4.2w-7x-5.4)"
We can write this as:
-(-4.2w-7x-5.4) = (-1)*(-4.2w-7x-5.4)
Now we can distribute the "-1"
Then we get:
(-1)*(-4.2w) + (-1)*(-7x) + (-1)*(-5.4)
We have 3 cases where we need to use the "(-)*(-) = (+)" rule, then we get:
(-1)*(-4.2w) + (-1)*(-7x) + (-1)*(-5.4) = 4.2*w + 7*x + 5.4
greatest integer of x < -3
Answers
Answer:
-4
Step-by-step explanation:
Here, we want to get the greatest integer less than -3
The integer less than -3 that is the greatest is -4
It is the internet directly after it to the left of the number line
[tex]\sqrt{\frac{2}{2}[/tex]
Answers
Square root of 1 is 1
Select all the functions that have no real number solution.
4x^2 + 100 = 0
3x^2 - 9 = 0
x^2+ 1 = 0
6x^2 - 216 = 0
x^2 - 49 = 0
Answers
What is the mean of the values in the dot plot?
Enter your answer in the box.
Answers
Answer:
The mean is 46.
Step-by-step explanation:
To find the mean of these points add the values together. So that's one 40, two 41's, one 45, two 48's, three 49's and one 50.
40 + (2 * 41) + 45 + (2 * 48) + (3 * 49) + 50
Multiply what's in the parentheses.
40 + 82 + 45 + 96 + 147 + 50
Add, going from left to right
122 + 45 + 96 + 147 + 50
167 + 96 + 147 + 50
263 + 147 + 50
410 + 50
460
Now, divide that by how many dots there were (10).
460/10
The mean of the values in this dot plot is 46.
f(x)=6^x for x=2 help please
Answers
9514 1404 393
Answer:
f(2) = 36
Step-by-step explanation:
Put 2 where x is and do the arithmetic.
f(2) = 6^2
An exponent of 2 means 6 is a factor two times.
f(2) = 6×6
f(2) = 36
Answer:
36
Step-by-step explanation:
To evaluate f(x) = 6^x at x = 2, substitute 2 for x:
f(2) = 6^2 = 36
James has a rectangular plot of land that is 250 feet long and x feet wide. He wants to build a fence around the plot of the land. If the perimeter of the plot is 942 feet, what is the value of x?
Answers
Answer:
= 221
Step-by-step explanation:
Lenght = 250
Width= x
Perimeter = 2 (l+b) = 942
2 x (250 +x) = 942
500 + 2x = 942
2x = 942 - 500= 442
x = 442 /2 = 221
I hope Im right!!
Lisa types 56 words per minute. How many words can she type per second?
Answers
Answer:
1.07 for hundredths or 1.071 for thousandths
Step-by-step explanation:
60 ÷ 56
Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form.
x=10/3 x=10,y=30/3 x=30.y=10/3
Answers
Answer:
Use the fact that sin(x) = opp/hyp and tan(x) = opp/adj
where opp=opposite, hyp=hypotenuse, adj=adjacent and recall sin(30)=1/2 and tan(30) = 1/sqrt(3)
sin(30) = 1/2 = 17/y
y = 17(2) = 34
tan(30) = 1/sqrt(3) = 17/x
x = 17sqrt(3)
So the answer is (d)
Note that you could have also use the Pythagorean theorem to find x instead of using tan(30).
Write down two different prime numbers that have a sum of 34.
Answers
Answer:
23+11
Hope that helps :)
Answer:
31+3
Step-by-step explanation:
2,3,5,7,11,13,17,19,23,27,29,31
31+3=34
whether the following relation represents a function. Use pencil and paper.
Explain your reasoning.
{(-4,4), (-2,2), (-1,1), (-7,7), (-8,6), (-3,5)}
Does the relation represent a function?
Ο Νο
o Yes
Answers
in a sequence of numbers, a3=3, a4=7, a5=11, a6=15, and a7=19. based on this information, which equation can be used to find the nth term in the sequence, an?
Answers
Answer:
Step-by-step explanation:
sequence is a1,a2,a3,a4,a5,a6,a7,...
or a1,a2,3,7,11,15,...
d=a4-a3=7-3=4
a3=a1+(3-1)d
3=a1+2d
3=a1+2×4
a1=3-8=-5
an=a1+(n-1)d
an=-5+(n-1)4
an=-5+4n-4
an=-9+4n
the volume of a recta
Answers
Kay is going to do some work in her garden. Her garden is in the shape of a rectangle. Kay thinks she can buy enough paint to cover the decking for less than £65 Is Kay correct?
Answers
Answer:
Still not sep-by-step explanation:
example of variations natural resources
Answers
Answer:
Sexual reproduction promotes variable gene combinations in a population leading to genetic variation. Examples of genetic variation include eye color, blood type, camouflage in animals, and leaf modification in plants
Step-by-step explanation:
–19w + 11 = –17w − 19
w=
Please help, will mark brainliest to correct answer!
Answers
Answer:
w = 15
Step-by-step explanation:
We have an expression and are asked to solve for w.
-19w + 11 = -17w - 19
Subtract 11 from both sides :
-19w = -17w - 30
Add 17w to both sides :
-2w = -30
Divide -2 from both sides to isolate w :
w = 15
261, 256,251,... what would be the 46th term
Answers
Answer:
36
Step-by-step explanation:
Ricardo bought $46.23 worth of groceries and paid with a $100 bill. How much change did he receive?
Answers
Answer:
Step-by-step explanation:
You will need to subtract the amount paid from the total amount
100 - 46.23
= 53.77
Ricardo will receive $53.77 in change. :)
HELPPP PLEASE!!!! HELP
Answers
2 x=7
3 t=3
B1 x=3
2 x=2
3 z= √6
Someone help me I don’t know how to do this
Answers
Answer:
17 and 59
Step-by-step explanation:
90-75=17 first one
180-121=59 second one plz give me brainnessttttt pllzzzz
Hey there!
So the first angle is a complementary angle, meaning that two angles put together will equal 90 degrees. Since we already know that one angle is 75 degrees, all we need to do is 90-75 and we get 15 degrees, which is the value of the missing angle.
The second angle is a supplementary angle, which means two angles equal 180 degrees. Since we know that one angle is 121 degrees, we can take that and subtract is from 180 degrees to get 59 degrees, which is the value of the missing angle.
Remember:
A complementary angle is made of up TWO angles that add up to 90 degrees.
A supplementary angle is made up of TWO angles that add up to 180 degrees.
I hope this helped!!!
Lane is fourteen years older than Michelle. If Lane is 33, how old is Michelle?
Answers
Answer:
19
Step-by-step explanation:
if lane is 14 years older and he is 33 to find michelle's age you just have to subtract 14 from 33 and get that that michelle is 19
Answer:
Michelle would be 19 years old
Step-by-step explanation:
33 minus 14 years is 19 because he is 33 she is 14 years younger so she would be 19 years old
Simplify the expression -(6 - 4p)
Answers
Hey there!
The answer to your question is [tex]-6+4p[/tex]
Given:
[tex]-(6-4p)[/tex]
First, we distribute the negative sign to both terms ([tex]6[/tex] [tex]and[/tex] [tex]-4p[/tex]) This would make the [tex]6[/tex] negative and the [tex]-4p[/tex] positive, so we have:
[tex]-6[/tex] [tex]and[/tex] [tex]4p[/tex]
Add them together and we get:
[tex]-6+4p[/tex]
Have a nice day!
Write a equation that represents the situation
Answers
Answer:
13.75 divided by 4/5
Step-by-step explanation:
hope this helped :)
You want to put a 3 inch thick layer of topsoil for a new 23 ft by 24 ft garden. The dirt store sells by the
cubic yards. How many cubic yards will you need to order? The store only sells in increments of 1/4 cubic
yards.
cubic yards
Answers
So first you need to find the area of the plot; 552. Then you need to find out how much soil you will need. There are 12 inches in a foot so if you have 3 inches you have .25 of a foot. So you multiply 552 by .25 and get 138. 138 is how many cubic feet you need. Therefore, you need to divide this number by 3 in order to convert this to yards (3 feet in a yard). This will bring you to 46. Finally, we need to multiply this number by 4 because they only sell in 1/4 cubic yards.
HELP ! On #1 ASAP for math
Answers
Answer: 1=2x 2=(0, 1/4)
Step-by-step explanation:
consider the function g(x) = 54(1/3)x. evaluate g(0). what point does this indicate on the graph if g?
Answers
54x1/3=18
18x0=0 therefore the answer to the equation is 0
