Answer:
9[tex]\sqrt{5}[/tex]
Step-by-step explanation:
Using the rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]
Simplify the radicals
[tex]\sqrt{20}[/tex]
= [tex]\sqrt{4(5)}[/tex]
= [tex]\sqrt{4}[/tex] × [tex]\sqrt{5}[/tex]
= 2[tex]\sqrt{5}[/tex]
[tex]\sqrt{45}[/tex]
= [tex]\sqrt{9(5)}[/tex]
= [tex]\sqrt{9}[/tex] × [tex]\sqrt{5}[/tex]
= 3[tex]\sqrt{5}[/tex]
Then
3[tex]\sqrt{20}[/tex] + [tex]\sqrt{45}[/tex]
= 3(2[tex]\sqrt{5}[/tex] ) + 3[tex]\sqrt{5}[/tex]
= 6[tex]\sqrt{5}[/tex] + 3[tex]\sqrt{5}[/tex]
= 9[tex]\sqrt{5}[/tex]
Slope Please help!!!!!
Answer:
2/3
Step-by-step explanation:
2/3
Step-by-step explanation:
Very Simple
Take 2 points
x,y
x1,y1= 3,2
x2,y2=6,4
Find the slope
Y2-Y1/X2-X1
4-2/6-3
2/3
The difference between a number and its square is 20. Find the
numbers.
Answer:
-4 or 5
Step-by-step explanation:
let number be x
x²-x=20
Rearrange
x²-x-20=0
(x+4)(x-5)=0
Separate
x+4=0, x-5=0
x=-4 or 5
1. There are 16 boys and 18 girls in a Grade 6 math class. Write the ratio of girls to boys in words as simply as possible.
2. The ratio of blue marbles to yellow marbles is 5:1. For every yellow marble, there are ___ blue marbles.
Answer:
1.)8 boys yo 9 girls
2.)5
Step-by-step explanation:
1)divide by 2
2.) every yellow marble is 1 and there is 5 marbles for each yelllow marble
The ratio of boys to girls in the Grade 6 math class is =
8 : 9.
For every yellow marble, there are five blue marbles.
To find the ratio of a given two quantities how many times one quantity is greater or smaller than the other.
To find the ratio of boys to girls in Grade 6 math class simplify by dividing through with two.
Therefore, 16/18 = 8/ 9, that is 8 boys is to 9 girls.
The 5:1 ratio of blue to yellow marbles means for every yellow marble, there are five blue marbles.
Learn more about ratio here:
https://brainly.com/question/2328454
6.85 x 10^8 = 685,000,000
can any of you guys help out by showing work on how this is the answer
Answer:
Step-by-step explanation:
10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 = 100000000
100000000 x 6.85 = 685,000,000
Answer:
scientific notation. I did this a few moths ago.
Step-by-step explanation:
since it is 10^8 you're going to move your decimal as far the right as you can which then changes it to 685. x 10^6. After that you add 6 zeros (from the 10^6) and change it from a decimal to a comma to get 658,000,000... i hope this helps
The vertices of the quadrilateral JKLM are J(-2,0), K(-1,2), L(1,3), and M(0,1). Can you use the slopes
and/or the distance formula to prove each statement?
Select Yes or No for A-C.
A. Quadrilateral JKLM is a parallelogram.
А
Yes
B
No
B. Quadrilateral JKLM is a rhombus.
А
Yes
B
No
A. Quadrilateral JKLM is a rectangle.
A
Yes
B
No
Answer:
A. Yes
B. Yes
C. No
Here's what it would look like:
Part A: find the measure of x and y
Part B: choose the correct degree measure for arc JKL
Answer:
x = 7
y = 4
Arc JKL = 262°
Step-by-step explanation:
Find the diagram attached
Using the theorem;
Sum of opposite angle of the quadrilateral is 180°
7x+131 = 180
7x = 180-131
7x = 49°
x = 49/7
x = 7
Similarly;
11x+y+99 = 180°
11(7)+y+99 = 180°
77+99+y = 180
176+y = 180
y = 180-176
y = 4
arc JKL is the obtuse angle at the centre
Arc JKL = 360-(angle at the centre)
Angle at the centre is twice angle at the circumference.
Angle at the centre = 2(7x)
Angle at the centre = 2(49)
Angle at the centre = 98°
Arc JKL = 360-98
Arc JKL = 262°
SOLVE THIS
I WILL GIVE BRAINLIEST
hope it becomes helpful to you ☺️☺️
good luck
I NEED HELP WITH THIS FAST
Answer:
Option D my dude
Step-by-step explanation:
it make sense
Find two values of "b" so that x^2 + b x + 6 can be factored into binomial factors.
Given:
The expression is
[tex]x^2+bx+6[/tex]
To find:
The values of b so that the given expression can be factored into binomials factors.
Solution:
An expression is [tex]ax^2+bx+c[/tex] factorable if b is the sum of possible factors of ac.
We have,
[tex]x^2+bx+6[/tex]
Here, [tex]a=1,b=b,c=6[/tex].
[tex]ac=(1)(6)[/tex]
[tex]ac=6[/tex]
Some, factor forms of 6 are (1×6) and (2×3).
[tex]1+6=7[/tex]
[tex]2+3=5[/tex]
For b=7,
[tex]x^2+7x+6=x^2+x+6x+6[/tex]
[tex]x^2+7x+6=x(x+1)+6(x+1)[/tex]
[tex]x^2+7x+6=(x+1)(x+6)[/tex]
For b=5,
[tex]x^2+5x+6=x^2+2x+3x+6[/tex]
[tex]x^2+5x+6=x(x+2)+3(x+2)[/tex]
[tex]x^2+5x+6=(x+2)(x+3)[/tex]
Therefore, the two possible values of b are 7 and 5.
Can you help me simplify this expression 16d + 20c + 5d -7 - 8c - 7d + 3?
Answer:
12c + 14d - 4
Step-by-step explanation:
16d + 20c + 5d -7 - 8c - 7d + 3
Simplify the expression
__________________________
To solve, we need to first take in mind the fact that there are different like terms within this expression. Like terms are numbers or values that end in different symbols, such as variables or exponents. Since we are filled with variables such as c and d. We can do as followed :
Combine the "d" like terms :
16d + 5d - 7d
21d - 7d
14d
Combine the "c" like terms :
20c - 8c
12c
Combine the constants :
-7 + 3
-4
Now add all of the values together to get the final expression.
12c + 14d - 4
Answer:
14d + 12c + 3
Step-by-step explanation:
1) Add the same variables; if you see d, or c variable add or subtract them like this:
16d + 5d - 7d = 14d
20c - 8c = 12c
3 is left alone b/c there’s no any other number to add/subtract for 3.
also I know whether to add or subtract b/c the addition or subtraction sign would be before the number: ex; - 2, - 3x, + 5d, + 5
2) your equation should look like this....
14d + 12c + 3
Can someone help me plzz?
Answer:
Step-by-step explanation:
f/2 + 6
hey what's
[tex]4 {}^{3} [/tex]
Answer:
64
Step-by-step explanation:
4×16
64 sorryyy but I think this is it
Answer:
4³ is 64
Step-by-step explanation:
4 × 4 × 4 = 64
hope its correct
else you can report so that someone else can answer the correct one
Use the substitution method to solve the following pairs of simultaneous
equations.
a. x = 8-3y, 2x + 5y = 13,
Answer: x= , y=
Answer:
Step-by-step explanation:
2x+5y = 13
2(8-3y)+5y =13
16-6y+5y = 13
y=3
x =8-3y = -1
PLS HELP!! GIVING BRAINLST!!
Answer: Exactly one solution
Step-by-step explanation:
The reason for is because if we were to graph these two lines, we discover that they only intersect at one point, at (6,7). Therefore, if we were to plug those points in respectively, we see that it is true.
comenzando desdes el principio, una persona camina 6km al este durante el primer dia y km al este el dia siguente. ¿ cual es el desplazamiento neto de la persona desde el punto de partida en dos dias
A) 6km, oeste
B) 3km, este
C) 10km,este
D) 5km,oeste
E) 9k., este
ayuda porca cual de esta es
Answer:
Yanga ka jhcgjvvhjjio ddd....
-8/5 X= 56
solve
xjgzjfxgkhkufxhxkhxgykxhlxhlx
Answer:
x = -35
Step-by-step explanation:
-8/5x = 56
Start by multiplying both sides by 5 to get rid of the fraction. That will leave you with:
-8x = 280
You can then divide both sides by -8 and then you'll get x = -35
Answer:
x=-35
Step-by-step explanation:
-8/5x is gonna be -1.6x and you divide 56 by -1.6x and get x=-35
If 3 varies inversely as x and y=2 when x=25, find x when y=40
Answer:
you get X= 1.25!!!!! :) have a great day
Step-by-step explanation:
How do you write 20% as a fraction?
Answer:
20% = 20/100 or 2/10 or 1/5
Step-by-step explanation:
Answer:
20% as a fraction can be 20/100 1/5 2/10
Step-by-step explanation:
Which of the following functions represents a linear function?
Answer:
The top and the bottom
Step-by-step explanation:
Answer:
#3, the one with the straight line --> linear bc its a constant slope
Find the slope between the two points (-3,3) (1,-5)
Answer: M= -2
Step-by-step explanation: Have a brilliant day mate- Lily ^-^
dose the following table of points represent a function
Answer:
no
Step-by-step explanation:
theres no common theme between the x and y variable
At a restaurant, Natalie and her nine friends decided to divide the bill evenly. If each person paid $9.62, then what was the bills total?
Answer: 96.20 should be the answer
Step-by-step explanation:
Answer: $9(.2/$96.20
Step-by-step explanation:
If natalie and her nine friends go to a restaurant that equals 10 people total. To find out how much the bill cost entirely, all you have to do is multiply the number of people (10) by the amount each person paid ($9.62).
10 x 9.62 = 96.2 or 96.20
how many groups of 1/4 are in 7?
Answer:
All you have to do is add 2/4 7 times. So 1/4 times 7 which would equal 7/4=1 3/4
Step-by-step explanation:
Division is one of the four fundamental arithmetic operations. The groups of 1/4 in 7 are 28.
What is Division?Division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.
A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.
The number of one-fourths in 7, can be found by dividing 7 by 1/4. Therefore, the groups of 1/4 in 7 are,
Number of one-fourth = 7/(1/4)
= (7×4)/1
= 28
Hence, the groups of 1/4 in 7 are 28.
Learn more about Division here:
https://brainly.com/question/369266
#SPJ2
In Coach Bryant’s math class, he had his students create a net of a cube. An example of the net is below.
Net of a cube. The measurements for each side 2.5 in.
What is the total surface area of the cube?
37.5 in2
6.25 in2
31.25 in2
60 in2
Answer:7.5 in2
Step-by-step explanation:A=6a2=6·2.52=37.5in²
need help what is the equation of the purple line
Answer:
y=-2/5x +8
Step-by-step explanation:
use y=mx+b look at where the line intercepts with the y-axis and that is at 8 so that is your b. Then find two points and count how many down or up it is to get from the higher up point (i usually use the one that intercepts at the y-axis) to same line as the other point, in this case thats down two. Then count how many to the right it is and in this case it is 5. so since it went down thats -2 over 5 so then you just fill that into the y=mx+b and you should get y=-2/5x+8
Hope this helped!
ps. if this was right can you make it brainliest? thanks!
Find the exact area of the shaded region
CAN SOMEONE HELP PLS
Select the equations that show a proportional relationship between x and y.
y = 3x - 3
y = 3x
Answer:
The answer is the 2nd one.
A local diner uses 4 2/3 pounds of meat to make five hamburgers. How much meat is used to make one hamburger?
Answer:14/15 pounds of meat
Step-by-step explanation:
SO, 4 2/3=14/35 HAMBURGERS ARE MADE BY USING 14/3 POUNDS OF MEAT1 HAMBURGER IS MADE BY USING 14/3×1/5 OR,14/15 POUNDS OF MEAT.BASICALLY THE ANSWER IS:14/15 pounds of meat is used to make one hamburger.what two numbers multiply to 24 and add 14
Answer:
its 2 and 12
just basic math lol
Answer:
2 and 12
Step-by-step explanation:
2x12=24
2+12=14
