Step-by-step explanation:
step 1. The easiest way is to use Herons formula.
step 2. s = (a + b + c)/2 = (3 + 5 + 6)/2 = 7
step 3. A = sqrt(7(7-4)(7-5)(7-6))
step 4. A = sqrt(7(3)(2)(1))
step 5. A = sqrt(42)
step 6. A = 6.4807 = 6.5cm^2.
what is 2/3 as a decimal rounded to put in a Calculator?
Answer:
0.66
Step-by-step explanation:
PLEASE HELP ME! I WILL MARK BRAINLIEST IF YOU ARE CORRECT
Answer:
B
Step-by-step explanation:
The value of the polynomial for x = 3 is the value of P(3)
P(3) = 2(3)³ - 7(3)² + 7(3) - 12 = 54 - 63 + 21 - 12 = 0 → B
Like terms are two or more
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that have the same
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raised to the same [Seleccionar ]
WILL MARK BRAINLIEST!
Please help! What's the simplified expression? Explain why!
Answer:
625^3
Step-by-step explanation:
5*5*5*5=25*5*5=25*25=625
625^3 is the final answer
A rock is thrown down from a cliff that is 180 m high. The function
h(t) = -5t^2 – 10t + 180 gives the approximate height of the rock
above the water, where h(t) is the height in metres and t is the time
in seconds. When will the rock reach a ledge that is 105 m above
the water?
Answer:
t = 3
Step-by-step explanation:
105 = -5t^2 -10t + 180
-75 = -5t^2 -10t
15 = t^2 +2t
t^2 +2t -15 = 0
(t+5)(t-3)
t = -5, 3
There's no such thing as negative time so you use the positive answer
What is the radius of this circle?
Answer:
9in
Step-by-step explanation:
radius is half the diameter
18/2 is 9 so the radius is 9in
what is the probability of rolling a 3
Answer:
1/6
Step-by-step explanation:
Answer:
1/6 if rolled on a dice.
Step-by-step explanation:
There are 6 options on a dice, so 6 is the denominator.
There is only one chance to roll a 3, so 1 is the denominator.
Therefore, the answer would be 1/6.
What is the slope of the line that passes through the points (-2,-5) and (-3,-6) write your answer in simplest form
Answer:
y = x - 3
Step-by-step explanation:
1x +y = -7
1x - y = 3
cap
Step-by-step explanation: gxetuciv
plsss help (ZOOM TO SEE FULL PIC)
Answer:
350+280+553=1183
C
Step-by-step explanation:
PLEASE ANSWER QUICKLY! THIS IS FOR A STUFY GUIDE DUE IN 5 MINUTES!!!!!
6CO2 + 6H2O ———» C6H12O6 + 6O2
Is the equation above balanced or unbalanced? ___________
a- need to add coefficients
b- I don't know
c- Unbalanced
d- Balanced
Answer:
It's Balanced
Step-by-step explanation:
A simple word equation that can be used to describe the process of photosynthesis is carbon dioxide + water —> glucose + oxygen + water. So it's a balanced chemical equation for the process can be written as 6CO2 + 6H2O —> C6H12O6 + 6O2
Hope this helps!
Given: E is the midpoint of overline BD and overline AC perp overline BD .
Prove : triangle BAE cong triangle DAE .
Answer:
u can prove using SAS congruency
Step-by-step explanation:
Ae=Ae common
BE=DE (E MID POINT)
Angle E=angle E (90 degree)
The ΔBAE is congruent to ΔDAE.
Given to us,
E is the midpoint of ,
AC⊥ BD,
As given E is the midpoint of the line [tex]\overline{BD}[/tex],
So, BE = ED,
further, line AE = AE, because this is the common line between the two triangles.
Also, ∠BED =∠DEA =90°, as AC⊥ BD.
Therefore, the ΔBAE is congruent to ΔDAE.
To know more visit:
https://brainly.com/question/1446688
PLEASE HELP ME ANYONE
Answer:
30+a
Step-by-step explanation:
hope it helps dont report if wrong
3. Find the surface area for the given cylinder. Use 3.14 for r and round to the nearest whole number. (1 point)
A. 904
B.1,017
C.1,130
D.2,713
Answer:
C
Step-by-step explanation:
The surface area of a cylinder is given by the formula:
[tex]SA=2\pi rh+2\pi r^2[/tex]
Where h is the height and r is the radius of the cylinder.
The given radius is 6 and the height is 24.
We are also using 3.14 for π.
Therefore;
[tex]SA\approx 2(3.14)(6)(24)+2(3.14)(6)^2[/tex]
Evaluate:
[tex]SA\approx1130.4\approx 1130[/tex]
The answer is C.
Help with this plz ASAP
Answer:
slope is 2 rise, 1 run
-4 is the y intercept
y= 2/1 + -4
Step-by-step explanation:
I hope I wasn't helping I cheat ;-;
u can check this over later
HELP
ME
PLEASE THIS IS URGENT
Answer:
meters/second
Step-by-step explanation:
That's a velocity unit :).
Answer:
Meters/Second
which of the following is not a function
Forty students went on a trip on Wednesday. On Thursday, 15% less students went on a similar trip. How many students went on the trip on Thursday?
Answer:
34
Step-by-step explanation:
40 * .15= 6
40-6 = 34
okkk so you do 40 * .15 because you just put a decimal point before all percentages to convert it into number
40*.15= 6
then subtract 6 to the original amount
40-6=34
34 students went on the trip on thursday cause 6 students got killed by bears in the last trip.
Can someone help me pls and thank you!
Answer:
yes
Step-by-step explanation:
if you add 2+3 it will be five and 6+5 equals 11 so yes
Answer:
Yes.
Step-by-step explanation:
6+2+3=11
8+3=11
Therefore, both equations are equal.
Jimmy runs 8 meters per second. His little brother runs 3 meters per second so is given a 40 meter head start. How long will it take Jimmy to catch his little brother? How far into the race will this be?
Answer:
8 Seconds
Step-by-step explanation:
Since Jimmy runs 8 meters per second, we can multiply 8x8 to find where he will be after 8 seconds.
8x8 = 64
Since Jimmy's little brother runs 3 meters per second, we can multiply 3x8 to find where he will be after 8 seconds.
3x8 = 24
But, remember, Jimmy's little brother had a 40 meter head start. So we have to add 40 to his total.
24+40 = 64
Since Jimmy and his little brother's totals are both the same, Jimmy will catch up to his little brother after 8 seconds.
carsen loves to run. she runs 4 miles each day if she wants to run a total of 56 miles how many days shoukd she run? whrite an equation to show this problem along with the answer
Answer:
the answer mia 14days
Step-by-step explanation:
56divided by 4 equals 14
HURRYYYYY
What does "Slope-Intercept Form" look
like?
Xb+c=y
y = mx + b
y2 - 71
X2 - X1
AX + By = 2
Answer:
y=mx+b
Step-by-step explanation:
the second answer
Plz, help if you are an expert at math. his lesson is called "Equations with variables on both sides" thanks
Answer:
solve the equation by multiplying and arranging.
Step-by-step explanation:
I didn't saw the question properly but I think it's the right question.
x + y = 3
x^2 + y^2 = 5
Solve
Answer:
(1, 2 ), (2, 1 )
Step-by-step explanation:
Given the 2 equations
x + y = 3 → (1)
x² + y² = 5 → (2)
Rearrange (1) expressing y in terms of x by subtracting x from both sides
y = 3 - x → (3)
Substitute y = 3 - x into (2)
x² + (3 - x)² = 5 ← expand and simplify left side
x² + 9 - 6x + x² = 5
2x² - 6x + 9 = 5 ( subtract 5 from both sides )
2x² - 6x + 4 ( divide through by 2 )
x² - 3x + 2 = 0 ← in standard form
(x - 1)(x - 2) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
x - 2 = 0 ⇒ x = 2
Substitute these values into (3) for corresponding values of y
x = 1 : y = 3 - 1 = 2 ⇒ (1, 2 )
x = 2 : y = 3 - 2 = 1 ⇒ (2, 1 )
The yearbook team is designing the pages for school clubs so
that the layouts are all the same. The dimensions shown are ir
inches. Different team members think about the total area of
the page in different ways.
a. Paulo thinks of the area of the page as the product
of the total length and the total width.Complete Paulo's expression. (_____+3)*(4+_____)
Answer:
creo que sería 54 por actitud de :72-1 1?? por eso sería esta cosa esxtactamente espero que te allá ayudado
Lexington and Louisville, KY are 75 miles apart. If the scale on the map is 1 cm = 5 mi, find the distance on the map between the two cities.
Answer:
15 cm
Step-by-step explanation:
75 miles / 5 miles = 15
15 * 1 centimeter = 15 cm
The perimeter of a rectangle is 48cm. It's length is 4cm. What is it's width?
Answer:
The width is 20cm
Step-by-step explanation:
4 + 4 = 8
48 - 8 = 40
40 ÷ 2 = 20cm
8.
If A= {x:xis a factor of 72}
B= {x:%2x+3<2x-3).
C= {x:x<20} and A,B,Ccu.
Where u = {integers), list the
elements of AnBnc.
that small c is subset and the small n is intersection set
Answer:
{2, 3, 4, 6, 8, 9, 12, 18}
Step-by-step explanation:
If A= {x: xis a factor of 72}
A = {2, 3, 4, 6, 8, 9, 12, 18, 36, 72}
If B= {x: 2x+3<2x-3).
-2x+3 <2x-3
-2x - 2x < -3-3
-4x < -6
x > 3/2
If
C= {x:x<20}
C = {-∞, 19}
The intersection of the sets AnBnc = {2, 3, 4, 6, 8, 9, 12, 18}
Note that intersection means all the elements common to the three sets
the next algebra test is worth 100 points and contains 35 problems. multiple-choice questions are worth 2 points each and word problems are 7 points each. how many of each type of equation are there? Please leave steps.
Answer:
29 multiple choice questions, 6 word problems
Step-by-step explanation:
2x + 7y = 100
x + y = 35
y = 35 - x
2x + 7 (35 - x) = 100
2x - 7x + 245 = 100
-5x = -145
x = 29
29 + y = 35
y = 6
HELPPPPPPPPPPPPPPP PLZZZZZZZZZZZZZz
Answer:
basically a calculator
Step-by-step explanation: