Answer:
A = 0.5(2x+6)(6x+13) = 6x² + 49x + 78Step-by-step explanation:
H = 2x+6 - the hight
3H = 3(2x+6) - triple the hight
3H-5 = 3(2x+6) - 5 - five less than triple the height
Area of triangle: A = 0.5BH
B = 3(2x+6)-5 = 6x + 18 - 5 = 6x + 13
H = 2x+6
So:
A = 0.5(2x+6)(6x+13) = (x+6)(6x+13) = 6x² + 13x + 36x + 78
A = 6x² + 49x + 78
Math equations that equal 31
A seventh-grade class 13 boys and 17 girls. Ms.King randomly choose one student to be the line leader. Which is the probability that a girl will be the line leader?
Answer: i hope it helps
In a class of 30 students, there are 17 girls and 13 boys. Five are A students, and three of these students are girls. If ... ... If a student is chosen at random, what is the probability of choosing a girl or an A student? ... I thought it would be B because we need to minus 3/30 probably that's both girl and A student.
Step-by-step explanation:
Rocco can do 60 jumping jacks in 1 minute. How many jumping jacks can he do
in 8 minutes?
Answer: 480 Jumping jacks
Step-by-step explanation: What I did was 60 * 8= 480
60 Jumping Jacks=1 minutes
120 Jumping Jacks=2 minutes
continue, continue
The number of jumping jacks can he do in 8 minutes is 480 if Rocco can do 60 jumping jacks in 1 minute.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
Rocco can do 60 jumping jacks in 1 minute.
60 Jumping Jacks = 1 minutes
120 Jumping Jacks = 2 minutes
= 60x8
= 480
Thus, the number of the jumping jacks is 480.
Learn more about the fraction here:
brainly.com/question/1301963
#SPJ2
Lucy owns a bakery. She has 2 cakes baked and can bake 4 cakes every u want ur. Write an equation for the number of cakes baked, c in H, hours
4(2x + 9) = - 17+ 13
Answer:
x= -5
•use photomath it gives you answers to these kinds of math problems. hope this helped:))
9 x 10' =
______________________
Answer:
9 x 10 = 90
Step-by-step explanation:
Answer:
90
Step-by-step explanation:
9x1=9 then add the zero
=90
A equivalent ratio of 3:7 is?
3:9
6:10
9:12
Answer:
it is none of these options
Step-by-step explanation:
after multiplying it by 1,2 or 3 none of the option comes up
..
anyone knoe the answer for this equation 3(x+2)+4+2x+5
Answer:
5x+15
Step-by-step explanation:
Answer:
5x+15
Step-by-step explanation:
3(x+2)+4+2x+5
(3x+6)+4+2x+5.
(3x+6)+9+2x
5x+15
simplify 3/2√3 a. √2/3 b. 2√3/3 c. 3√3/3 d. √3/2 -everything is in fraction form-
Answer:
Before A:[tex]\frac{3\sqrt{3}}{6}[/tex]
A:Already Simplified!
B:Also, Already Simplified! Can be changed to [tex]\frac{\sqrt{12}}{3}[/tex]
C:Already Simplified, yet again. Can be changed to[tex]\frac{\sqrt{27}}{3}[/tex]
D:Already Simplified.
Step-by-step explanation:
For Before A, I multiplied both denominator and numerator by square root of 3. The multiplication moved the square root to the numerator, simplifying the fraction.
The different forms of B and C are just that I multiplied the square of the first number into the square roots. This is OK because the square root of a number's square is the number itself. Therefore, you can multiply a square root by the square of the number from outside the root.
A wave has a wavelength of 18 meters and a Frequency of .5 Hz.
What is its velocity?
Simplify 212248400/3495856
Answer:
425/7
Step-by-step explanation:
I used a calculator. Hope this helped!!
Answer:
the answer is 425/7
Step-by-step explanation:
I used the calculator lol
Please help. P.S show your work Thank you :)
Answer:
≠
Step-by-step explanation:
10 * 7 - 3 ____ 10 * (7 - 3)
70 - 3 ____ 10 * (7 - 3)
67 ____ 10 * (7 - 3)
67 ____ 10 * 4
67 ____ 40
67 ≠ 40
Answer is ≠
this is because of the order you do a problem.
1. P - paranthesis
2. E - exponents
3. MD - multiplication division (whatever comes first)
4. AS - addition subtraction (whatever comes first)
There are no paranthesis in the first one so you multiply first.
There are paranthesis in the second one so you add first.
That gives you a different answer for each making it unequal.
HELP ME PLS HELP FAST DIE IN 5 MIN
Answer:
158 cm2
Step-by-step explanation:
surface area = (6×5)+2(8×5)+(8×6) = 158 cm2
1.BINOMIAL: A POLYMOMIAL WITH EXACTLY..................... TERMS
2. TRINOMIAL: A POLYMOMIAL WITH EXACTLY......................... TERMS
3. COEFFICIENT: A............. IN A TERM OF AN ALGEBRAIC EXPRESSION.
please answer only 17 and 18 asap
Answer:
17. -1 (y2-y1/x2-x1)
18. x/8= -6-4, x= -10*8 = -80
rote x+18=x-2 what is the answer
Answer:
no solution
Step-by-step explanation:
Given
x + 18 = x - 2 ( subtract 18 from both sides )
x = x - 20 ( subtract x from both sides )
0 = - 20 ← not possible
This indicates the equation has no solution
Without using a calculator, choose the statement that best describes the value of {86}
Answer: my guess is 9
Answer:
there would be the 8 in the tens place and the 6 in the ones place
Step-by-step explanation:
you can see this in a place value chart
simplify the following expressions ( combine like-terms )
Answer:
6x
Step-by-step explanation:
Step 1: Write equation
x + 2x + 3x
Step 2: Combine like terms
3x + 3x
6x
It’s all in the picture number 5!!!pleaseee help‼️‼️‼️‼️‼️‼️ASAP‼️‼️
We know that m<JKL = m<JKM + m<MKL
Let's substitute the values from the picture into our equation above.
10x - 11 = 43 + 8x - 20
Combine like terms.
10x - 11 = 8x + 23
Subtract 8x from both sides and add 11 to both sides.
2x = 34
Divide both sides by 2
x = 17
m<MKL = 8x - 20 = 8(17) - 20 = 136 - 20 = 116 degrees.
m<JKL = 10x - 11 = 10(17) - 11 = 170 - 11 = 159 degrees.
Mako's goal is to save $42. He currently has $2 and
plans to save $18 per week. Let x represent the
number of weeks Mako saves money.
Answer:
5 weeks its 40 divided by 8
Step-by-step explanation:
Evaluate the expression 3x - 8 when x = 2
Someone help me
Answer:
-2
Step-by-step explanation:
3x - 8
Let x=2
3*2 -8
6-8
-2
Answer:
6-8 = -2
Step-by-step explanation:
3 x if x equals 2 then 3 times 2 is 6. 6 minus 8 is -2!
Hope this helps! If it does, please mark me brainliest because it will help me. Thank you so much! ;) :)
8. Write `6.43\cdot10^{3}` in standard notation
9. Write `8.456\cdot10^{7}`
10. Write `8\cdot10^{5}` in standard notation
11. Write `9\cdot10^{10}` in standard notation
12. Describe how you would write 3,482,000,000 in scientific notation as if you were explaining it to someone who didn't know what scientific notation was.
just move the decimal point where the exponent indicates
there are no negative exponents here so none of these numbers will be decimal:
8. 6430, moved the decimal point 3 places to the right
9. 84560000 moved the decimal point 7 places to the right
10. 800000 (six zeros)
11. 90000000000 (ten zeros)
12. 3.482^9 (I'll use this one as example)
To convert a number to scientific notation, move the point just after the first number from left to right (that is not zero), remove the zeros that are from right to left if there are any (for example, if you have 45002 it is not needed to remove any because there is a significant number is in front of the two zeros, instead, if we have a number like 2046000, the last three zeros are removed).
there you will have the number: 3.482
Then, count how many places the point moved (in the original number) and that will be the exponent
3,482,000,000
moved 9 places
this isn't a decimal number so the exponent will be positive
3.482^9
Product or (6x+3) and (2x-3)?
Step-by-step explanation:
(6x+3)x(2x-3)
6x x 2x=12x^2
3 x -3=-9
12x^2-9
Idk if you need to simplify more but I hope it helps!
milo runs 4.5 miles around his house he has to run 6.7 miles how many miles does he have to run left
Answer:
2.2 miles
Step-by-step explanation:
6.7 - 4.5 = 2.2
Answer:
6.7 miles
Step-by-step explanation:
The sentence about 4.5 miles is extra info. you don't need. In the question it says he needs to run 6.7 miles, then continues to ask how many miles he needs to run.
I hope this answers your question and you understand! Have a great rest of your day! :)
Solve the quadratic equation by completing the square.
x2 + 8x + 19 = 0
What’s the answer ? Math algebra 2
Answer: x= 4 ± [tex]\sqrt{-3}[/tex]
Step-by-step explanation:
[tex]x^{2}[/tex] + 8x + 19 = 0 First subtract 19 from both sides
-19 -19
[tex]x^{2}[/tex] + 8x = -19 Now to complete the square on the left side you will divide 8 by 2 and square the number that you will get and add it to both sides. If you divide 8 by 2 you get 4 and 4 squared is 16 .So add 16 to both sides.
x^2 + 8x + 16 = -19 + 16 Now factor the left side
(x+4)^2 = -3 Take the square root of both sides
(x+4) = ±[tex]\sqrt{-3}[/tex]
Subtract 4 from both sides
x = ±[tex]\sqrt{-3} - 4[/tex]
If Ray BX bisects ABC and mABX = 5x- 3&mCBX = 2x + 15, find mABC.
Answer:
8
kjjk
Step-by-step explanation:
jjj
If a package of hot dogs cost 2.98 and a package of hot dog buns cost 2.16 what was the total expense?
Answer:
5.14$
Step-by-step explanation:
2.98$ +2.16$ = 5.14$
Find the distance between the points A(-2, 3) and B(4, 11)
Answer:
10
Step-by-step explanation:
square root (y2-y1)^2+(x2+x1)^2
square root (11- 3)^2 + (4- -2)
=10
a cliff diver leaps from a 100-foot cliff into the pacific. the divers height above the water is modeled by the function P(x) = -16x^2 + 10x + 100, where x is time in seconds. during which interval is the diver at least half way down
Answer:
2.1 < x < 2.5 seconds
Step-by-step explanation:
What is the domain of the function y=3sqt?
Answer:
y=3sqrt(x)
x≥0
Step-by-step explanation:
The domain of a function refers to all values of x for which y is defined.
Since this is a square root function, we need to keep the expression under the square root sign to be greater than or equal to zero.
As soon as the expression under the root sign is less than zero, the function will not be defined.
This means that the square root of a negative number will not be a real number.