Need help w this due today
Answer:
Step-by-step explanation:
you have a right triangle,
a^2+b^2=c^2
10^2=4^2+b^2
100=16+b^2
100-16=b^2
84=b^2
b=9.16
*4. What is (2.0 x 10-1)3 in
scientific notation?
A 2.0 x 10 -3
1
B 2.0 X 1/10 3
C 8.0 X 1/103
D 8.0 x 10 -3
Answer:
D
Step-by-step explanation:
Simon makes a model of a boat, using a scale of 1 : 30
If the model has a height of 40 cm, find the height of the real boat.
Give your answer in metres.
Answer: 12 metres
Step-by-step explanation:
The scale factor used for the model is 1 : 30.
This means that for any 1cm on the model, the real boat would be 30 cm.
If the height is 40 cm on the model, the real boat will be 30 times that:
= 40 * 30
= 1,200 cm
A metre is equivalent to 100cm.
1,200 cm would therefore be:
= 1,200/100
= 12 metres
Charles has 82 stamps altogether. He has 24 more local stamps than foreign stamps.
How many local stamps does he have?
Answer:
82-24=48
Step-by-step explanation:
HELP!!! 25 POINTE AND BRAINLIEST!! a local cafe sells 7,200 cold beverages in the month of july. over the next six months, the number of cold beverages decreases at an average rate of 750 cups per month. During the same time frame, the number of hot beverages sold is represented by the equation y=900x + 3,300 where the number of hot beverages, y, is a function of x, the number of months after july.
A. what is the rate of change of cold beverages sold per month? hot beverages?
B. which rate of change is greater? what does it mean?
Answer: a. The rate of change of cold beverages: -750 cups/month
The rate of change of hot beverages: 900 cups/month
b. The rate of change of hot beverages is greater (900 > -750). It means that the number of hot beverages sold increases at a rate of 900 cups every month.
Step-by-step explanation:
a. The question says that "the number of cold beverages decreases at an average rate of 750 cups per month". This indicates that the rate of change of cold beverages is -750 cups/month. Why negative? Remember that it decreases, not increases.
Then let's look at the equation given for the sale of hot beverages:
y=900x + 3,300
The slope of the equation is 900, which is also the rate of change. So the rate of change of hot beverages is 900
Me.Lee ordered some pizzas to be delivered. The bill for the pizza was m dollars. Mr. Lee tipped the pizza delivery driver 15% of the bill. Write an expression for the total amount of money Mr. Lee paid
The expression would be: m + 0.15m and to know how much she paid I believe it would be 26.09 (rounded)
Find the perimeter of an isosceles triangle. base edge = 23cm and vertex angle = 42°
How do you Multiply Radicals?????
Answer:
1. [tex]4\sqrt{5}[/tex]
2. [tex]10\sqrt{10}[/tex]
Step-by-step explanation:
When you multiply radicals, you do the following
[tex]a\sqrt{b}\cdot c\sqrt{d}\\\\=ac\sqrt{bd}[/tex]
with that in mind
1.
[tex]\sqrt{16}\cdot \sqrt{5}[/tex]
here we don't need to multiply 16 times 5, because 16 = 4^2 and take the square root of it, gives you 4
[tex]=4\sqrt{5}[/tex]
2.
[tex]\sqrt{20}\cdot 5\sqrt{2}\\\\\longrightarrow 20 = 2^2\cdot 5\\\\=2\sqrt{5}\cdot5\sqrt{2}\\\\=(2\cdot5)\sqrt{5\cdot2}\\\\=10\sqrt{10}[/tex]
Find an expression, in it's simplest form, for the perimeter of this hexagon.
Answer:20
Step-by-step explanation:
use the given functions to answer the question.
f(x)=x^2+2x-5
g(x)--3x^2-4x+1
what is f(x)-g(x)
-2x²-2x-4
Is the answer. I know because I took the test.
Maddie swims the hundred meter freestyle in 30 seconds what is her average speed in meters per minute
what is the rate unit for 1700 meters in 40 minutes
please help
Answer:
42.5m/s
Step-by-step explanation:
Divide by 40
The dimensions of a rectangle are given in terms of S as shown below or above.
Q. Which expression represents the perimeter of the rectangle? Mark all that apply.
Answer:
A and D
Step-by-step explanation:
It should be Sx2 + 2(S+ 1/2)
Which is equal to 4s+1
and 2(2s + 1/2) is equal to 4s+1 as well
first three terms of a sequence are given. Round to the nearest thousand (if necessary) 152,149,146... Find the 30th term
Answer:
65
Step-by-step explanation:
use the following equation
aₙ=a₁+(n-1)d
Where d is the common difference
n is the term
a₁ is the first term
the common difference is -3 (149-152)
this means we have
152+(30-1)*-3
Compute this and get
65
2(5x-9) = 11x-3 find m
Answer:
129 degrees
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
The measure of angle PST 129 degrees after applying the properties of the triangle.
What is the triangle?In terms of geometry, a triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.
It is given that:
The triangle is shown in the picture.
The equation can be made:
5x - 9 = (180 - (11x - 3))
5x + 11x = 180 + 3 + 9
16x = 192
x = 192/16 = 12
The measure of angle PST = 11x - 3
= 11(12) - 3
= 129 degrees
Thus, the measure of angle PST is 129 degrees after applying the properties of the triangle.
Learn more about the triangle here:
brainly.com/question/25813512
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I WILL GOVE BRAINLIEST!!!
Answer:
First of all make me as branlist answer then I will surely send it
How many degrees are inside of a convex hexagon? Remember to use (n-2)180.
180
360
720
1080
please help due asap jdbhdbdbd
Answer:
b
Step-by-step explanation:
Answer: b
Step-by-step explanation:
180°-116°=64°
How many solutions exist for the given equation 12x + 1 = 3(4x + 1) -2
Answer:
All real numbers are solutions (hope that helps)
Step-by-step explanation:
12x+1=3(4x+1)−2
Step 1: Simplify both sides of the equation.
12x+1=3(4x+1)−2
12x+1=(3)(4x)+(3)(1)+−2(Distribute)
12x+1=12x+3+−2
12x+1=(12x)+(3+−2)(Combine Like Terms)
12x+1=12x+1
12x+1=12x+1
Step 2: Subtract 12x from both sides.
12x+1−12x=12x+1−12x
1=1
Step 3: Subtract 1 from both sides.
1−1=1−1
0=0
Please help can some one explain to no how to get the answer
Answer:
2(-2)+1
Step-by-step explanation:
All you have to do is replace x with-1
The price of CD player was reduced from 80 to 52 what was the percent decrease in the price of the CD player
Answer:
The CD player's price decreased by 35%
what is the y intercept of the line given by the equation below
y=-10x+14
Answer:
(0, 14) is the y-intercept
Answer:
14 is the y-intercept
Step-by-step explanation:
10 would be the slope so that leaves 14 which is the y intercept
a
\large 140\frac{1}{2}
b
\large 140\frac{1}{3}
c
\large 141
d
\large 140\frac{3}{4}
How you Can find the area of a composite figure?
Answer:
Here are the steps to find the area of a composite figure.
1. Split the composite figure into simpler shapes.
2. Find the area of each of the simpler shapes.
3. Add the area of all the simpler shapes together.
4. You'll have the area of the composite figure.
Let me know if this helps!
can someone help me with these 3 questions please!!
1. Use greatest common factor and the distributive property to write an equivalent
expression in factored form.
2x + 8y
2. Use greatest common factor and the distributive property to write an equivalent
expression in factored form.
13ab + 15ab
3. Use greatest common factor and the distributive property to write an equivalent
expression in factored form.
20g + 24h
Answer:
..
Step-by-step explanation:
Substitution:
2x - y = 6
x + y = -3
Answer:
4 and for x+y is 2+1
Step-by-step explanation:
Mrs. Wright makes cookies for the school bake sale. She uses the equation y = 0.50x to determine the cost, y, for x cookies. Which best represents the constant rate at which cookies are sold at the bake sale? The Answer choices are......
A.50 cookies per dollar
B. 5 cookies per dollar
C.$0.50 per cookie
D.$2 per cookie
Answer:
Option C : $0.50 per cookie is the right answer.
Step-by-step explanation:
Given that:
Equation used by Mrs. Wright is
y = 0.50x
Here,
y = cost of cookies
x = number of cookies
Thus,
Cost = Price per cookie * Number of cookies
On comparing
Cost per cookie = $0.50
Hence,
Option C : $0.50 per cookie is the right answer.
pls help due asap
Thanks in advance
Answer:
Angle ABF is 120°.
Step-by-step explanation:
Vertical angles are used to get the measure of angle ABG (3x) and FBE (2x) and all of those added together are 180. Then you use PEMDAS to get x. Then you find ABF by multiplying 3 by 30 (what you get when you use PEMDAS to find x) then you add 30 to that and you get 120.
In which quadrant does 694 lie?
Answer: C. quadrant l
Step-by-step explanation:
Angle 694° lies Quadrant IV which is correct option (D)
What is a graph?A graph can be defined as a pictorial representation or a diagram that represents data or values
What is the quadrant?A quadrant is defined as an area contained by the x and y axes, which there are four quadrants in a graph.
For Quadrant I : the value of x and y both are positive ( +,+ )
For Quadrant II : the value of x is negative and y is positive ( -,+ )
For Quadrant III : the value of x is negative and y is negative ( -, - )
For Quadrant IV : the value of x is positive and y is negative ( +, - )
Locate the quadrant of the angle.
If the angle is greater than 360°,
Subtract 360° until the angle is less than 360°.
⇒ 694 - 360
⇒ 334°
Hence, angle 694° lies Quadrant IV
Learn more about the quadrant of graph here:
https://brainly.com/question/7196312
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inverse of g(x) = x^2+1
To find the inverse, interchange the variables and solve for y
G^-1 (x) = square root x - 1, - square root x-1