Answer:
-2 (negative 2)
Step-by-step explanation:
8÷2 =4
4-6 = -2
hope this helps
Which is the product of 7/9 and 6?
Answers: A 1 4/9
B 3 7,9
C 4 2/3
D 7 5/7
Answer:
C
Step-by-step explanation:
7/9 x 6 = 4u 6/9
simpify it and you get 4u2/3
hope thus helps :)
Please please help help me with two questions!!
Answer:
A. True
B. False
Step-by-step explanation:
1: 30 + 10 = 40 and 8 x 5 = 40 (both match)
2: 75 - 25 = 50 and 5 x 9 = 49 (Doesn't match)
Use mathematical induction to prove the statement is true for all positive integers n. 1^2 + 3^2 + 5^2 + ... + (2n-1)^2 = (n(2n-1)(2n+1))/3)
Answer:
The statement is true is for any [tex]n\in \mathbb{N}[/tex].
Step-by-step explanation:
First, we check the identity for [tex]n = 1[/tex]:
[tex](2\cdot 1 - 1)^{2} = \frac{2\cdot (2\cdot 1 - 1)\cdot (2\cdot 1 + 1)}{3}[/tex]
[tex]1 = \frac{1\cdot 1\cdot 3}{3}[/tex]
[tex]1 = 1[/tex]
The statement is true for [tex]n = 1[/tex].
Then, we have to check that identity is true for [tex]n = k+1[/tex], under the assumption that [tex]n = k[/tex] is true:
[tex](1^{2}+2^{2}+3^{2}+...+k^{2}) + [2\cdot (k+1)-1]^{2} = \frac{(k+1)\cdot [2\cdot (k+1)-1]\cdot [2\cdot (k+1)+1]}{3}[/tex]
[tex]\frac{k\cdot (2\cdot k -1)\cdot (2\cdot k +1)}{3} +[2\cdot (k+1)-1]^{2} = \frac{(k+1)\cdot [2\cdot (k+1)-1]\cdot [2\cdot (k+1)+1]}{3}[/tex]
[tex]\frac{k\cdot (2\cdot k -1)\cdot (2\cdot k +1)+3\cdot [2\cdot (k+1)-1]^{2}}{3} = \frac{(k+1)\cdot [2\cdot (k+1)-1]\cdot [2\cdot (k+1)+1]}{3}[/tex]
[tex]k\cdot (2\cdot k -1)\cdot (2\cdot k +1)+3\cdot (2\cdot k +1)^{2} = (k+1)\cdot (2\cdot k +1)\cdot (2\cdot k +3)[/tex]
[tex](2\cdot k +1)\cdot [k\cdot (2\cdot k -1)+3\cdot (2\cdot k +1)] = (k+1) \cdot (2\cdot k +1)\cdot (2\cdot k +3)[/tex]
[tex]k\cdot (2\cdot k - 1)+3\cdot (2\cdot k +1) = (k + 1)\cdot (2\cdot k +3)[/tex]
[tex]2\cdot k^{2}+5\cdot k +3 = (k+1)\cdot (2\cdot k + 3)[/tex]
[tex](k+1)\cdot (2\cdot k + 3) = (k+1)\cdot (2\cdot k + 3)[/tex]
Therefore, the statement is true for any [tex]n\in \mathbb{N}[/tex].
On a coordinate plane, a line goes through points (0, 0) and (1, 3).
Based on the graph, what is the constant of variation?
Answer:
3 on edge
Step-by-step explanation:
Just did the assignment
Which is the correct answer.
Answer:
a = 250t
Step-by-step explanation:
Can someone plz help me I beg u :(
if y = 16 when x = 4, find
Y when x = 6
Is one a polygon, two, three?
Answer:
1 and 2 is and 3 is not
Step-by-step explanation:
On Saturday, Lucas drove 4x – 5 miles. On Sunday, he drove 3x – 10 miles. What is the difference in miles driven? write an expression and simplify it.
________________________________
Here, Distance covered by Lucas on Saturday
= 4x – 5 miles
Now, Distance covered by Lucas on Sunday
= 3x – 10 miles
________________________________
Hence, Difference between the distances
would be / –
Distance covered on Saturday – Distance covered on Sunday
= (4x – 5) – (3x – 10)
= 4x – 5 – 3x + 10
[ Because (– * + = – ) And ( – * – = +) ]
= 4x – 3x + 10 – 5
= 1x – 5
= x – 5 ( – Ans )
Hence, The difference between Distance covered ( In miles ) is ( x – 5 ) .
________________________________
please answer :( im very lonely and im bad at maths so do it for me :(((
Answer:
Step-by-step explanation:
First you need to calculate the entire length (in meters) of the metal used in the gate, then multiple the length by 2.5 kg per meter
Break it into parts.......
four pieces on along the outside is just the perimeter of a rectangle
P = 2( L + H) both sides and the top and bottom
the two crossing metal pieces are just the hypotenuse of a right triangle and since we have two pieces of metal
a² + b² = c² or L² + H² = Hyp² solving for the htpotenuse
Hyp = [tex]\sqrt[]{L^2 + H^2}[/tex]
so the total length of the gate metal is
P = 2( L + H) plus 2 Hyp = [tex]\sqrt[]{L^2 + H^2}[/tex]
= 2( 12 + 5) + 2 [ √(12² + 5²) ]
= 34 + 2 [ √( 144 + 25) ]
= 34 + 2 ( √169)
= 34 + 2( 13)
= 34 + 26
= 60 meters of gate metal metal weighs 2.5 kg per meter
Total weight equals 60 meters times 2.5 kg per meter
Total weight = 60 (2.5) = 150 kg
please help with my math
Answer:
150 boys
Step-by-step explanation:
equation:
⇒ 5x + 4x = 270
add like terms:
⇒ 9x = 270
divide 9 on both sides:
⇒ [tex]\frac{9x}{9} = \frac{270}{9}[/tex]
solve:
⇒ x = 30
take original equation and subtitute 30 for x;
⇒5 x 30 + 4 x 30 = 270
⇒ 150 + 120 = 270
We can see that if there were 270 students, 150 would be boys and 120 would be girls.
simplify..
2x^3 * 4x^3
thank you!!!
Answer:
8x^6
Step-by-step explanation:
2x4+x=8x
^3+^3=^6
The question is in the photo. Please answer with the correct answer.
Answer:9
Step-by-step explanation:
Create an equivalent expression that includes a set of parentheses that make the value of the expression 5. Remember, you can have 2 or more numbers within the set of parentheses.
32 divided by 10 - 8 divided by 2 - 3
Create an equivalent expression that includes a set of parentheses that make the value of the expression 13. Remember, you can have 2 or more numbers within the set of parentheses.
1/2 x 12 divided by 2 - 2 + 11
ANSWERS NEEDED ASAP
Thank you!
Answer:
32 / (10 - 8) / 2 - 31/2 * (12 / 2 - 2) + 11Note: The mention of parantheses makes me believe they are asking for one-line expressions with no fractions. If this is incorrect, replace the slashes with fraction lines with the addition and subtraction outside of said fractions.
The equivalent expression, which includes a set of parentheses that make the value of the expression 5 and 13 are,
[tex]10-\dfrac{32}{8}+(2-3)=5[/tex]
[tex]\dfrac{1}{2}\times[(12\div 2)-2]+11=13[/tex]
What is the equivalent expression?Equivalent expressions are the expression whose result is equal to the original expression, but the way of representation is different.
Create an equivalent expression that includes a set of parentheses that make the value of the expression 5.
32 divided by 10 - 8 divided by 2 - 3. Make the expression with assuming the result as n.
[tex]n=10-\dfrac{32}{8}+(2-3)\\n=10-4-1\\n=5[/tex]
Create an equivalent expression that includes a set of parentheses that make the value of the expression 13.
1/2 x 12 divided by 2 - 2 + 11
Make the expression with assuming the result as n.
[tex]n=\dfrac{1}{2}\times[(12\div 2)-2]+11\\n=\dfrac{1}{2}\times[6-2]+11\\\\n=\dfrac{1}{2}\times4+11\\n=2+11\\n=13\\[/tex]
Thus, the equivalent expression which includes a set of parentheses that make the value of the expression 5 and 13 are,
[tex]10-\dfrac{32}{8}+(2-3)=5[/tex]
[tex]\dfrac{1}{2}\times[(12\div 2)-2]+11=13[/tex]
Learn more about the equivalent expression here;
https://brainly.com/question/2972832
What is the slope of the line describe by the equation y=-6x-2
Answer:
The slope(M) is -6
Step-by-step explanation:
:)
Question 11 ) Given the following histogram, which term can be used to describe the shape of the data?
I NEED HELP WITH THIS PLZZZ
Answer:
The center of the circle is point: C=(1,5).
The radius of the circle is r=3.
Step-by-step explanation:
x² + y² -2x - 10y + 17 = 0
Find the center and radius of this circle
We have the equation
x² + y² -2x - 10y + 17 = 0
We collect like terms
x² - 2x + y² - 10y = -17
x² - 2x + (-2/2)² + y² - 10y + (-10/2)² = -17 + (-2/2)² + (-10/2)²
The center of the circle is point: C=(1,5).
The radius of the circle is r=3.
which sides and angles are congruent to each other ?
which two triangles are congruent? (order of letters matter) if you don’t know do not answer
Answer:
AC=QP
AB=PR
<BAC=[<QPR
THESE SIDES AND ANGLES ARE CONGRUENT
Step-by-step explanation:
CAB=~QPR
v/22 - 0.1 = 7.4 what is v?
Answer:
v = 165
Step-by-step explanation:
v/22 -0.1 = 7.4
v/22 = 7.4+0.1 =7.5
v = 7.5*22
v = 165
Answer:
[tex]v = 165[/tex]
Step by step Explanations:1) Add 0.1 to both sides.
[tex] \frac{v}{22} = 7.4 + 0.1[/tex]
2) Simplify 7.4 + 0.1 to 7.5.
[tex] \frac{v}{22} = 7.5[/tex]
3) Multiply both sides by 22.
[tex]v = 7.5 \times 22[/tex]
4) Simplify 7.4 × 22 to 165.
[tex]v = 165[/tex]
Therefor, the answer is v = 165.
Complete the inequality with >, <, or=.
13
<
62
yabadad.yabadadad.kokoko.komn.lollooo
Answer:
yayayayayayauauaudadaddadadadaddadaad.lolllollololololo
If f(x) is an exponential function where f(3.5)=21 and f(6.5)=69, then find the value of f(9), to the nearest hundredth.
Answer:
substitute 2 for x
answer is B
Step-by-step explanation:
Answer:
Step-by-step explanation:
185.94
Morgan earned $80 selling 32 paint brushes at a craft fair. What was the cost of each paintbrush sold? Explain
Answer:
$2.5
Step-by-step explanation:
You divide 80 by 32 = 2.5
Hope this helps
Mark brainliest please
Answer:
2.50
Step-by-step explanation:
80/32
=2.50
divide 80 by 32 to get the cost per paintbrush
Q3. In a hydraulic lift, a 1400 N force is applied to a 0.5 m2 piston. Calculate the minimum surface area of the large piston to lift 5000 N.
Answer:
1.8m^2 approx
Step-by-step explanation:
Given data
P1= 1400N
A1=0.5m^2
P2=5000 N
A2=??
Let us apply the formula to calculate the Area A2
P1/A1= P2/A2
substitute
1400/0.5= 5000/A2
cross multiply
1400*A2= 5000*0.5
1400*A2= 2500
A2= 2500/1400
A2= 1.78
Hence the Area is 1.8m^2 approx
A linear equation with one variable, x, can be solved to show that it has no solutions. Which of the following show that there are no solutions?
select all that apply.
a) x=1
b) x=x
c) 1=1
d) 1=3
e) x=3
f) 0=3
Answer:
a,d,e,f
Step-by-step explanation:
A skyrocket is launched from a 30–foot-high platform, with initial speed 300 ft/s. If the polynomial −16t2 + 300t + 30 gives the height that the rocket will rise in t seconds, how high will a rocket with a 2–second fuse rise? The rocket will rise feet.
Answer:
566 ft
Step-by-step explanation:
Given the polynomial equation
-16t² + 300t + 30 = 0
We're asked to find how high the rocket would rise in a 2 second fuse rise. This is a simple instruction that can be obtained by setting the unknown, t, in the equation to 2. Doing this, we have
-16 * 2² + 300 * 2 + 30
-16 * 4 + 600 + 30
-64 + 630 = 566 ft
Then, we can therefore conclude that the rocket will rise high up to a distance of 566 ft
I need help solving this step by step. Work would be nice so I can look and understand it so I can try a different problem.
Answer:
I need points, sorry, i cant help
Step-by-step explanation:
I need help very fast please
Answer:
the second chaise is the answer
Find “X” thank you!!!! <33
Answer:
Step-by-step explanation:
If we assume that the angle at A is 90 degrees.. which it does seem like it would be. then use that the sum of the angles around the inside of a right triagle is 180 . so you have
180 = 37 + 90 + x
53° = x
does that help?
Help Plz
Will mark brainliest
Answer:
x=12
Step-by-step explanation:
Before starting this question, you need to know that the total degree of any given triangle is 180 degrees.
Now looking at the question, we know one side is 90 degree since it is a right triangle.
180-90=90
This let us know that the remaining two angles will have to add up to equal to 90 degrees.
2x+1+5x+5=90
First, combine like terms.
7x+6=90
Now we have to get x by itself, subtract 6 on both sides then divide by 7.
7x=84
x=12