Answer:
b = 7
Step-by-step explanation:
4b + 11 = 39
Subtract 11 to both sides
4b = 39-11
4b = 28
Dividing both sides by 4
b = 7
this is my question -- factorise x^2+5x+6
Answer: (x+2)(x+3)
Step-by-step explanation:
Find the multiples of 6 and then see which two numbers adds up to 5
Which of the following is an angle shown in the drawing?
Answer:
ABE
DBC
CBE
Step-by-step explanation:
They all have B as the middle one, and B is the vertex
I think
Find the surface area and volume of the prism.
Answer:
SA: 456
V: 408
Step-by-step explanation:
To find the volume of this prism, you first need to find the area of the triangular base. The base has dimensions 6 by 8, and since it's a triangle, the area of the base is 6*8/2=24. Multiplying this by the length of the prism, you get a volume of 24*17=408. For the surface area, you need to find and add together the areas of all of the surfaces. We have already determined that the area of the two triangular bases are 24. The rectangle formed by the leg with length 6 has area 6*17=102, the one with length 8 has area 136, and the hypotenuse has area 170. Adding all of this together, you get a surface area of 24+24+102+136+170=456 square centimeters. Hope this helps!
Formula of surface area: T.S.A = ph + 2b
p: represents the perimeter of the base, h
h: the height of the prism and B
B: the area of the base.
6 + 8 + 10 = 24
24 x 17 = 408cm^2
Formula of Volume:
V: of a prism is the area of the base
B: times the height h
h: height
V=Bh
8 x 7 = 56cm^3
If today is not Thursday then tomorrow is not Wednesday
Answer:
Not sure what your choices are but.. assuming its finding these,
Inverse: If tomorrow is not Wednesday, then today is not Thursday.
Contrapositive: If Today is not Thursday, then tomorrow is not Wednesday.
Converse: If tomorrow is Wednesday, then today is Thursday.
Step-by-step explanation:
use factoring to solve
3x^2-11x-6=0
Answer:
x = -0.62 and x = 4.29
These values are approximations !
Step-by-step explanation:
You can not use Factoring to solve this equation. Perhaps you did not use the exact notation as in the original question?
Anyway, to solve it, you can still use the ABC formula.
3x²-11x-6=0
a = 3
b =-11
c = -6
x = [11 + √{121 -4(3 *-6)} ]/ 2*3
x = [11 + √{121 -4(-24)} ]/ 6
x = [11 + √{121 + 96} ]/ 6
x = [11 + √{217} ]/ 6
x = 4.29 This is an approximation !
x = [11 - √{121 -4(3 *-6)} ]/ 2*3
x = [11 - √{121 -4(-24)} ]/ 6
x = [11 - √{121 + 96} ]/ 6
x = [11 - √{217} ]/ 6
x = -0.62 This is an approximation !
extra: see the graph.
Can someone please help me it’s for geometry thank you :)
Answer:
QST = 2x= 2*20 = 40°
Step-by-step explanation:
RSQ+QST= RST
we know that RST is 124
So,
84+2x= 124
Bringing 84 to the other side it becomes negative
2x= 124-84
= 40
Therefore,
x= 40/2
= 20 °
Here's your answer :)
You roll a twelve-sided die (having values one through twelve on its faces). What is the probability that the value of the roll will be a composite number?
show work pls!
help pls!
Step-by-step explanation:
Probability
Probability is a measure of the likelihood that an event will happen.
When dealing with probability, the outcomes of a process are the possible results. For example, when a die is rolled, the possible outcomes are 1, 2, 3, 4, 5, and 6. In mathematical language, an event is a set of outcomes, which describe what outcomes correspond to the "event" happening. For instance, "rolling an even number" is an event that corresponds to the set of outcomes {2, 4, 6}. The probability of an event, like rolling an even number, is the number of outcomes that constitute the event divided by the total number of possible outcomes. We call the outcomes in an event its "favorable outcomes".
Probability =
I need help ASAP!! A, B, C, D
Answer:
C. Both f(x) and its inverse function intersect at point (2, 2).
Step-by-step explanation:
First of all, let's begin defining f(x) = y.
Since the linear function f(x) intersects at
• 6 on the y-axis; and
• 3 on the x-axis;
we can deduce the following equation:
6x + 3y = 6(3)
6x + 3y = 18
3y = -6x + 18
y = -6x/3 + 18/3
y = -2x + 6
f(x) = -2x + 6
Then, we'd want to find the inverse of f(x), which is f`¹(x).
f(x) = -2x + 6
y = -2x + 6
Interchange the variable y to x and vice versa.
x = -2y + 6
2y = -x + 6
y = (-1/2)x + 3
f`¹(x) = (-1/2)x + 3
Since both f(x) and its inverse function are equal to y, set them both as equal.
f(x) = f`¹(x)
-2x + 6 = (-1/2)x + 3
-2x + (1/2)x = 3 - 6
(-3/2)x = -3
x = 2
Substitute x = 2 into y = -2x + 6.
y = -2(2) + 6
y = -4 + 6
y = 2
Now that we know x = 2 and y = 2, then the intersection point of (x, y) must be (2, 2).
I hope this helps! Sorry if my English didn't really help with giving a clearer explanation.
!!WILL MARK BRAINLIEST!! Write in slope-intercept form an equation of the line that passes through the given points.
Answer:
y = 1/4x
Step-by-step explanation:
First find the slope
m = (y2-y1)/(x2-x1)
= (2-1)/(8-4)
= 1/4
The slope intercept form of a line is
y = mx+b
where m is the slope and b is the y intercept
y = 1/4x +b
Substitute a point into the equation
1 = 1/4(4) +b
1 = 1+b
b= 0
y = 1/4x
Please answer ASAP !!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!
Please help with this question
answer:
is that a quiz or a test? cuz if so, brainly doesn't let us do ur work. someone will report. but i wont. dw!
Answer:
a) 1/(7x-14)
b) 2 (36-y^2)
Step-by-step explanation:
Please let me know if you need explanation
plz help ASAP i would thx u alot
Answer:
The second answer
Step-by-step explanation:
Factor the polynomial expression x4 + 18x2 + 81
Answer: [tex](x^2+9)^2[/tex]
Step-by-step explanation:
Rewrite it in the form [tex]a^2+2ab+b^2[/tex] , where [tex]a=x^2 and b=9.[/tex]
[tex](x^2)^2+2(x^2)(9)+9^2[/tex]
Use Square of Sum: [tex](a+b)^2= a^2+2ab+b^2[/tex]
[tex](x^2+9)^2[/tex]
A=1/2(b1+b2)h What are equivalent equations
Answer:
b1 + b2
A = ------------- * h
2
Step-by-step explanation:
What you have here is fine as is, except that the "1/2" should be enclosed in parentheses:
A = (1/2)(b1 + b2)h.
Alternatively, write:
b1 + b2
A = ------------- * h
2
What is the missing step in the proof? i need help
Someone help me please! This needs to be done ASAP!
Answer:
0.15p+3=9
Lyda ordered 40 photos or p=40
Step-by-step explanation:
The formula for this is:
0.15p+3
Where p is the amount of pictures ordered.
0.15p+3=9
Subtract 3 from both sides
0.15p=6
Divide both sides by 0.15
p=40
Lyda ordered 40 photos
Find the missing side. Leave your answer in simplest radical form.
Answer:
[tex] \sqrt{19} \: units[/tex]
Step-by-step explanation:
Given is a right angled triangle in which x represents the hypotenuse.
Therefore, by Pythagoras theorem:
[tex]x = \sqrt{( { \sqrt{10} })^{2} + {3}^{2} } \\ \\ = \sqrt{10 + 9} \\ \\ = \sqrt{19} \: units \\ [/tex]
solve the system of simultaneos equations using substitution method. 2/x-3/x=1 equation one 1/x-2/y= 2. equation two
Answer:
First solve the first one
2/x -3/x = 1
Multiply through by x
2/x×x -3/x×x = x
You will get
2 - 3 = x
x = - 1
Substitute x into the second Equation
1/x - 2/y = 2
x = 1
1/1 -2/y = 2
-2/y = 2-1
-2/y = 1
y = -2
Therefore x = - 1 and y = - 2
Hope this helps.
An athletics squad trains on a long straight track with dots marked at 10m intervals. The coach sets out cones on some of the dots for the squad's sprint training drills. She wants the squad to be able to run any distance which is a multiple of 10m, up to some maximum distance which depends on the number of cones.
Explain why it is not possible to place four cones A, B, C, D, in a line so that each multiple of 10m up to 70m can be run between two of the cones.
Answer:
There are 6 ways to run 10 m between two cones of the four cones giving a maximum available distance to run as 60 meters
Step-by-step explanation:
The parameters given are
Distance between two cones = 10 m
Number of cones = 4
Therefore, number of ways to choose two 10 m distances (distance between two cones) from the four cones = [tex]\binom{4}{2}[/tex] = 6
Hence there are only six 10 m distances to run between two cones which gives a maximum distance available to run as 60 m.
Find the equation of the line shown.
Answer:
see below
Step-by-step explanation:
From the graph the slope is -1 and the y-intercept is 9. Therefore we can use slope-intercept form (y = mx + b) which will be y = -x + 9.
PLSSSSSS HELP!!!!!!!
Jamie has two similar rectangular boxes. If the sides of one box are three times the lengths of the corresponding sides of the other box, which one of the following is true?
a. The volume of one box is 3 times the volume of the other.
b. The volume of one box is 6 times the volume of the other.
c. The volume of one box is 9 times the volume of the other.
d. The volume of one box is 27 times the volume of the other.
Answer:
B
Step-by-step explanation:
(There is 2 sides.)
Find the area of the figure. If needed, round to the nearest tenth.
Isosceles trapezoid
An isosceles trapezoid with bottom base length of 8 feet, top base of 4 feet, and height of 3 feet.
a.
36 sq. ft
b.
18 sq. ft
c.
15 sq. ft
d.
16 sq. ft
Please select the best answer from the choices provided
Answer:
[tex]18 \:ft^2[/tex]
Step-by-step explanation:
The area of a trapezoid.
[tex](a+b)h\frac{1}{2}[/tex]
[tex](8+4)3 \times \frac{1}{2}[/tex]
[tex](12)3 \times \frac{1}{2}[/tex]
[tex]36 \times \frac{1}{2}[/tex]
[tex]=18[/tex]
The proportion of brown M&M's in a milk chocolate packet is approximately 14% (Madison, 2013). Suppose a package of M&M's typically contains 52 M&M's
Answer:
About 7 brown M&M's.
Step-by-step explanation:
To find 14% of 52, multiply 0.14 * 52. This equals 7.28, round to 7.
Q3. Explain any one congruency Property with real world example
Find the simplest pattern and fill in the missing number. 45, 30, 18, 9, ... 0
Answer:
3 the patten is the previous subtracted about decrease by 3
Step-by-step explanation: the pattern decrease the number subtracted by 3 so it starts with 15 and goes to 12 then to 9 so the last one would be six and 9 - 6 = 3
Click on the measure of the angle. 116 64 66 114
Answer:
116 degrees.
Step-by-step explanation:
HELP ME OUT! A student dissolves 1 gram of sugar in 10 grams of water. She then determines the mass of the solution. What is the mass of the dissolved sugar and water?
Answer:
The mass of the dissolved sugar and water is 11 g.
Step-by-step explanation:
When a substance is dissolved in another, they are mixed together forming a new one, therefore the new substance's mass must be the same as the sum of the individual mass of each substance mixed, because there are no leaks. In this case, there are two substances being mixed, the water which have a mass of 10 grams and the sugar which have a mass of 1 gram, therefore the final solution's mass must be equal to 11 g.
I have 2 questions, What is 1/4 x 9 =? then 2/5 x 12 ( Multiplying fractions by whole numbers using tape diagrams)
Answer:
What is 1/4*9=2.25 then 2/5*12=4.8
Step-by-step explanation:
Could someone help me out
Answer:
−10d^4+17d^2s−6s^2
Use the 2016 marginal tax rates to compute the tax owed by the following person.
A married woman filing separately with a taxable income of $186,000.
Answer:
If you are talking about the amount of money, it is $664,285.71
If not then lmk
Step-by-step explanation: