Answer:
i think b or c sorry if its not right
Step-by-step explanation:
Find the AOS, vertex and sketch the parabola.
5) y=-x2 + 4x+3
vertex:
AOS:
Can somebody please help me?
Thank you! :)
Answer:
Step-by-step explanation:
Will give BRAINLYEST
Find the value of x.
600
эх
А. 30
В. 60
ОО ОО
С. 20
D. 10
Answer:
oof umm i think the answer is b
Step-by-step explanation:
sorry if its wrong i'm bad at math
11) Help pls I have the answer I just need to show the work.
True or False. To find the missing side length in the diagram, use the Pythagorean Theorem.
Answer: A
A rectangular prism has a volume of 80 cubic feet. The length of the prism is 8 feet and the height of prism is 4 feet. What is the width of the prism?
Answer:
2.5
Step-by-step explanation:
8 times 4 is 32, and 80/32 is 2.5. When you have to find another measurement and you know 2 of them, you just have to divide the total of the 2 measurements with the volume. it would be 2.5 feet as the height.
A triangle has two angle measures of 20 degrees and 30 degrees. Find the third angle. This triangle is a(n) ________ triangle
Question 2 options:
A. acute
B. obtuse
C. right
D. it does not make a triangle
Answer:
Obtuse
Step-by-step explanation:
x = missing angle
20+30+x=180
50+x=180
x=130
90<130
Thus, the triangle is obtuse
What is the measurement of angle C? Part C
Answer:
130 degrees is your answer
Step-by-step explanation:
The measurement of angle C is given by the expression 180° – 25° – 25°. So, angle C measures 130°.- answer from edmentum
WILL MARK BRAINLIEST!!!!!!!!!
what is 5/1 as a whole number
Answer:
5
Step-by-step explanation:
5÷1
i m not sure but i like its ans
What is 5 4/7 as an improper fraction
Answer:
39/7
Step-by-step explanation:
Step 1
Multiply the denominator by the whole number
7 × 5 = 35
Step 2
Add the answer from Step 1 to the numerator
35 + 4 = 39
Step 3
Write answer from Step 2 over the denominator
39/7
The lengths of two sides of a triangle are shown below:
Side 1: 3x2 − 6x − 10
Side 2: 9x + 5x2 − 8
The perimeter of the triangle is 6x3 + 10x2 − x − 3.
Part A: What is the total length of the two sides, 1 and 2, of the triangle? (5 points)
Part B: What is the length of the third side of the triangle? Hint: Take Perimeter minus 2 sides combined.
(10 points)
Answer:
Part A) [tex](3x^2 - 6x - 10) + (5x^2 + 9x - 8 ) =8x^2 + 3x - 18[/tex]
Part B) [tex](10x^2 - x - 3) - (8x^2+3x-18) = 2x^2 -4x+15[/tex]
solve for x in example 2. x =_________
10x+20=145
Find the equation of the linear function represented by the table below in slope-intercept form. The table is in the picture below
Answer:
Y = 4x + 1
Step-by-step explanation:
1 × 4 + 1 = 5
2 × 4 + 1 = 9
3 × 4 + 1 = 13
4 × 4 + 1 = 17
The rate of change of y is proportional to y. When t = 0, y = 4, and when t = 2, y = 8. What is the value of y when t = 3?
Solution :
Given :
The rate of change of y is proportional to y.
Therefore, [tex]$\frac{dy}{dt} \propto y$[/tex]
[tex]$\frac{dy}{dt} = k y$[/tex] , where k is the proportionality constant
[tex]$\frac{dy}{y}=k \ dt$[/tex]
Taking integration on both the sides,
[tex]$\int \frac{dy}{y}=\int kdt$[/tex]
[tex]$\int \frac{dy}{y}=k\int dt$[/tex]
[tex]$\ln |y| = kt+C$[/tex], where C is the integration constant
[tex]$y=e^{kt+C}$[/tex]
[tex]$y=e^{kT}e^C$[/tex]
[tex]$y(t)=C_1e^{kt}$[/tex] ....................(1)
When t = 0, y = 2, so
[tex]$2=c_1e^{k\times 0}$[/tex]
[tex]$2=c_1e^{ 0}$[/tex]
[tex]$2=C_1$[/tex]
From equation (1),
[tex]$y=2e^{kt}$[/tex] ........................(2)
when t = 2, y = 4
[tex]$4=2e^{k\times 2}$[/tex]
[tex]$e^{2k}=\frac{4}{2}$[/tex]
[tex]$e^{2k}=2$[/tex]
[tex]$2k= \ln(2)$[/tex]
[tex]$k=\frac{1}{2} \ln(2)$[/tex]
From (2),
[tex]$y=2e^{\frac{1}{2}\ln(2)t}$[/tex]
[tex]$y=2e^{\frac{t}{2}\ln(2)}$[/tex]
[tex]$y=2e^{\ln(2)^{t/2}}$[/tex]
[tex]$y=2.2^{t/2}$[/tex]
When t = 3,
[tex]$y = 2 . 2 ^{3/2}$[/tex]
[tex]$y=2[(\sqrt2)^2]^{3/2}$[/tex]
[tex]$y= 2. 2\sqrt2$[/tex]
[tex]$y=4 \sqrt2$[/tex]
You charge $2 per square yard to paint.Which equation can you solve to find the amount you will charge to paint a triangular wall with a base of 4 yards and a height of 6 yards?
Answer:
2(1/2 x 4 x 6) = x
expaination:
area of triangle = 1/2 x 2 x 6 sq yards
multiply by $2/sq yard
Answer: $24
Step-by-step explanation:
The formula for a triangle is 1/2 times base times height
so 0.5 x 4 x 6
0.5 x 4 = 2
2 x 6 = 12
12 x $2 = 24
so you charge $24 dollars
Hope this helps.
19^23/19^41 Need Help !!!
Answer:
Step-by-step explanation:
In exponents division, if base are same then subtract the powers.
[tex]\frac{a^{m}}{a^{n}}=a^{m-n}[/tex] when m > n
[tex]\frac{a^{m}}{a^{n}}=\frac{1}{a^{n-m}}[/tex] when n > m
[tex]\frac{19^{23}}{19^{41}} = \frac{1}{19^{41-23}} = \frac{1}{19^{18}}[/tex]
Answer:
Sheesh they r correct lol
Step-by-step explanation:
Help I’ll give Brainly est
Answer:
B
Step-by-step explanation: Since Matthew has 350 free minutes, then that is highest amount of free minutes he has so it can be written as x ≤ 350
What is congruent in this problem?
Answer:
Step-by-step explanation:
SVT and TVU
Hope that helps!
Question 83 pts
Given that 2 Al + 6 HCl → 2 AlCl3 + 3H2
UR ON TIMER GO FASTtt How many moles of hydrogen are produced if we start from 2.2 mol Al and 4.2 mol HCl?
2.1
mol H2
How many moles of excess reactant are left over?
Answer:
Ummm I dont know what subject it is so i will guess 2.3?
Step-by-step explanation:
I'm Sorry im really useless
6 Find the Surface Area of the below image. 4 cm 10 cm 7 cm Part A There are pairs of rectangles in this Rectangular Prism.
Answer:
I think the surface area is 276 if I'm not mistaken hope this helps!
it 1 print is = to 2 cups,then 5 prints would = ____ cups
Answer:
5 pints = 10 cups
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
5 * 2 = 10
Share R72 the ratio is 5:4
Answer:
40, 32
Step-by-step explanation:
Ratio = 5 : 4
Shares are = 5x , 4x
5x + 4x = 72
9x = 72
x = 72/9
x = 8
5x = 5 * 8 = 40
4x = 4 *8 = 32
29 = 3t + cos(t) solve for t
Answer: t ≈9.9543..
Step-by-step explanation:
Answer:
T= 9.6... or 10
Step-by-step explanation:
29= 29/3
=9.6...
Consider the line 7x+8y=-5.
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?
Answer:
Step-by-step explanation:
7x + 8y = -5
8y = -7x - 5
Divide the whole equation by 8
[tex]\frac{8y}{8}=\frac{-7x}{8}-\frac{5}{8}\\\\y =\frac{-7}{8}x-\frac{5}{8}[/tex]
Parallel lines have same slope
Slope of the parallel line = (-7/8)
Slope of the line perpendicular to this line = -1/m = -1 ÷ (-7/8)
[tex]= (-1)*\frac{8}{-7}\\\\= \frac{8}{7}[/tex]
Help me please, thank you!
Answer:
8
Step-by-step explanation:
18-10=8 units
Answer:
8
Step-by-step explanation:
The total height of the rectangle and triangle is given as 18
The height of the rectangle is given as 10 , then
height of triangle = 18 - 10 = 8
Graph this: y = 2sIn(x) - 3
Insert picture of graph
Answer:
We have the function:
f(x) = 2*sin(x) - 3
To graph this type of functions is useful to understand the parts of the function.
A general one is written as:
g(x) = A*sin(w*x + p) + M
where:
A is the amplitude
w is the angular frequency.
p is the phase
M is the midline.
Then in this case we have an amplitude of 2, an angular frequency of 1, a phase of 0 radians and the midline y = -3
Now we can evaluate the function in different points and (knowing how a sine function behaves) connect them, the graph will look something like this:
i’ll give brainliest help a girl out
Answer:
ST, WX
Step-by-step explanation:
Answer:
ST and WX are congruent
The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $7500 to rent trucks plus an additional fee of $150.25 for each ton of sugar. The second company charges $7143 to rent trucks plus an additional fee of $175.75 for each ton of sugar.
Answer:
14 tons of sugar
$9603.5
Step-by-step explanation:
For what amount of sugar do the two companies charge the same?
What is the cost when the two companies charge the same?
Let
x = ton of sugar
Company A:
7500 + 150.25x
Company B:
7143 + 175.75x
1. Equate company A and company B
7500 + 150.25x = 7143 + 175.75x
7500 - 7143 = 175.75x - 150.25x
357 = 25.50x
x = 357/25.50
x = 14 tons of sugar
2. Cost when both companies charge the same
Company B:
7143 + 175.75x
= 7143 + 175.75(14)
= 7143 + 2460.5
= 9603.5
Company B = $9603.5
Company A:
7500 + 150.25x
= 7500 + 150.25(14)
= 7500 + 2103.5
= 9603.5
Company A = $9603.5
Cost of Materials
Material Cost (in dollars)
Copper 28
Brass
16
Aluminum
18
Iron
22
8
Plastic
The table shows the cost per unit for some materials in a plumbing supply warehouse. Select ALL correct statements.
A)
The range, 20, summarizes the data
B)
The median, 18, summarizes the data.
The range, 20, describes how the values vary.
D)
The median, 18, describes how the values vary.
E)
The range represents the average cost per unit
Answer:
A
Step-by-step explanation:
BECAUSE IM DIFFERENT
Brian earns $5 per hour babysitting. He makes a graph and plots what he
earns for different numbers of hours. He places the number of hours he
works on the x-axis and his earnings on the y-axis. What is the slope of the
line that Brian graphs?
Answer:
The slope of the line is 5
Step-by-step explanation:
When we talk of the slope of a straight line graph, we refer to the rate at which the values on the y-axis changes as a ratio of the changes we have on the x-axis
Now, from the question, number of hours is placed on x-axis, while we have the amounts on the y-axis
having $5 per hour means the rate of change of what is earned to number of hours worked is 5 and this is the slope of the line
What will be the linear equation for the shown table?
Answer:
y=2x+5
Step-by-step explanation:
To find a linear equation you must find the slope and y intercept to create an equation in y=mx+b form (slope-intercept form)
So slope is = y2-y1 / x2-x1 [2 and 1 are subscripts] so 11-7/3-1 so m=4/2 = 2
Slope = 2, now find b
So using y = mx + b, substitute what you know so 7 = 2(1) + b so b=7-2 = 5
Put it all together y = 2x + 5