Answer:
(-2) + (3-7)
(-1) * (-2)
EVALUATE THE EXPRESSION
Step-by-step explanation:
HELP ME PLS
HELPPPPPPPPPPPP
The function g(t) = -16t2 + vt + h represents the height of an object, g, in feet above the ground in relation to the time, t, in seconds, since the object was thrown into the air with an initial velocity of v feet per second at an initial height of h feet.
A model rocket is launched off the ground at an initial velocity of 80 feet per second.
What domain makes sense for the function in this context?
A. all positive numbers
B. 0 ≤ t ≤ 5
C. all real numbers
D. 0 ≤ t ≤ 100
Answer:
B. 0 ≤ t ≤ 5Step-by-step explanation:
The function is g(t) = -16t² + vt + h
At h = 0 and v = 80 we get the function:
g(t) = -16t² + 80tWe know g(t) can't be negative, then:
-16t² + 80t ≥0t² - 5t ≤ 0t(t - 5) ≤ 5t ≥0 and t ≤ 5, or0 ≤ t ≤ 5Correct option is B
some help me!!!! Please
HEEEEPLLLP IF RIGHT WILL GIVE YOU BRAINLIEST IF WRONG I WILL GO TO A CORNER AND CRYYY
Answer:
The last one is incorrect
Step-by-step explanation:
Does 7 = 0 ???????????????
Answer:
no never. it won't be zero.
What is 3 more than -5 ?
plsssss answer i will mark as brilliant
Answer:
-2
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
Please help!!!! Maths!!!!!
Answer:
x= 2 or x= -3
Step-by-step explanation:
Bring the equations together using a common denominator (x-5) (x+7)
x-29/(x-5) (x+7)= 1
Multiply both sides by (x-5) (x+7)
x- 29= (x-5) (x+7)
x- 29= (x-5) (x+7)= x^2 + 2x - 35
-x^2 - x + 6 = 0
-(x-2)(x+3)= 0
Multiply both sides by -1
(x-2)(x+3)= 0
Split it into two equations
x-2= 0 or x+3= 0
x= 2 or x= -3
simplify answer, round to nearest 10th in radical form
Answer:
adassdasdsa c c c c cc c c c c c c c cc c c c
Step-by-step explanation:
If g(x)=5/4x-7, what is the value of g(12)
Answer:
8
Step-by-step explanation:
g(12) = 5/4(12)-7 = 15-7 = 8
fill in the table using the function rule
Answer:
for number 1 y = 21 for number 2 y = 39 for the 3rd 1 its y = 54 and the final 1 is y = 63
Step-by-step explanation:
plz if I'm right plz mark me brainlist because this took a long time
40% lower than 1,110
Answer:
its 444
Step-by-step explanation:
A zookeeper has 858585 treats to divide evenly among 888 seals. The zookeeper divides to see how many treats to give to each seal. The zookeeper will have as few treats left as they can.
85\div8=10\text{ remainder }585÷8=10 remainder 585, divided by, 8, equals, 10, start text, space, r, e, m, a, i, n, d, e, r, space, end text, 5
Which of the following describes the remainder in this case?
Choose 1 answer:
Answer:
the anwser is B
Step-by-step explanation:
Hi, can anyone please help with this? I'm having a very hard time with this specific problem plus math is my least strong subject and it would mean so much if someone could help. Thank you!!
Answer:
Step-by-step explanation:
For reference the quadratic equations looks like this
(-b±[tex]\sqrt{b^2-(4*a*c)}\\[/tex])/2a
Amy's mistake (and solution)
We can see that when amy mulitplied c she wrote 20 instead of -20 (in step 1). She can fix this by writing (4*1*-20) instead
Richard's mistake (and solution)
When richard messed up on step 5 when he wrote (6-2i)/2. You only would write the i if the negative was in the radical (but in this case it's outside). You would fix this by just getting rid of the i entirely (and keeping the 2)
I'm not really too sure how you would do three but I'll give it a shot anyways
our equation will look like this: x²+2x
which means our quadratic equation would look like this
[tex]\frac{-2+/-\sqrt{2^2-4*1*0}}{2}\\=\\\\\frac{-2+/-(2)}{2}\\\\\\= -1+/-(1)\\\\-1+1=0\\-1-1=-2[/tex]
When I write +/- I mean plus or minus giving us -2 and 0 as our solutions
How many grams are in 4.3 moles of ammonium chloride
Answer:
230 g
Step-by-step explanation:
4.3 x molar mass of NH4Cl
Molar Mass of NH4Cl = 14.0067 + 4x1.0079 + 35.453 = 53.491
4.3 x 53.491 = 230 g
There are 550 people at the school carnival.
Part A
If 385 of the people are students, what percentage of the people at the carnival are students?
Part B:
If 30% of all the people at the carnival are on a ride, how many people are on the ride?
Answer:
70% of the people at the fair are students
165 people are on the ride
Step-by-step explanation:
In order to find a percentage, take the fraction given, 385/550, and divide the numerator, 385, and divide it by the denominator, 550. Once completing this, we get 0.7
Next, we multiply the result by 100, and get 70, thus, 385 is 70% of 550.
To find how many people 30% of 550 is, we take the percentage and put it in a fraction with the denominator being 100(changes with size of fraction like a decimal, 300 would be over a denominator of 1000)
With 30/100, we then multiply by 550 with the equation looking like this:
30/100*550/1
Once we finish multiplying(typically using a calculator, although you can do it manually) we get 165, the value of how many people are on rides out of the total 550.
A woman put $580 into a savings account for one year. The rate of interest on the account was 6½%. How much was the interest for the year in dollars and cents? (Round to the nearest cent)
Answer:
Step-by-step explanation:
principal amount by women for savings = $ 580
duration = 1 year and rate of interest on it = 6 .1/2 % = 13/200
now amount of interest she'll be earning = $580 x 1 x 13 /200 = $37.7
thats 37 dollar 70 cents
Please I need some help correct answers only!!!!!
Hai!
I believe this would be 11.
Brainliest please?
Help plsssd Help pldddd
ok the first one
and this is the second one
Bananas sell for $0.49 for 1 pound. How much will 1.31 pounds cost?
Answer:
0.64
Step-by-step explanation:
Bananas:0.49:1
?:1.31
1x1.31 is 1.31 so
0.49x1.31=0.64
please help me :( i will give brainliest !
Answer:
(4w^2+180w+1800) meters^2
Explanation:
(60+2w) x (30+2w)
1800+120w+4w^2+60w
Combine like terms and rearrange into quadratic equation
4w^2+180w+1800
Don't forget to put your units and since we are talking about area be sure to add your squared symbol
Please help! If i don’t get this grade up i’m getting grounded.. i’m begging you
Answer:
19 my person of unidentified gender (random text to make this longer)
if you have to get the answer for 4 multiplied by a number to make it 76 you know you could get the same number by dividing 76 / 4
the answer you can try is 4(x+19)=76
please help and explain how to solve
Answer:
45
Step-by-step explanation:
25 ÷ 45 = 0.555 x 81 = 45
Answer:
A 45-foot tree will cast a 81-foot shadow.
Step-by-step explanation:
Set up a proportion.
I'll set mine up like this:
[tex]\frac{Height of Tree}{Shadow}=\frac{Height of Tree}{Shadow}[/tex]
Insert the values given then solve for the unknown (t).
[tex]\frac{25}{45}=\frac{t}{81}[/tex]
[tex](81)\frac{25}{45}=\frac{t}{81}(81)[/tex]
[tex]45=t[/tex]
1+√1-x =(√2x +4)² ........
Answer:
x =−3.28642165
Step-by-step explanation:
What is the area, in square meters, of the figure below?
Answer:
[tex]0.55[/tex] square meters
Step-by-step explanation:
The area of a triangle can be calculated by multiplying its height and base, then dividing the result by [tex]2[/tex]. As an algebraic expression, that would be [tex]\frac{bh}{2}[/tex], where [tex]b[/tex] is the base and [tex]h[/tex] is the height. In this case, [tex]b=2.2[/tex] and [tex]h=0.5[/tex]. Therefore, the area of the triangle is:
[tex]\frac{bh}{2}\\= \frac{2.2*0.5}{2}\\=\frac{1.1}{2} \\= 0.55[/tex]
Hope this helps!
By observing the diagram, we have :
Base of triangle, b = 2.2 mHeight of triangle, h = 0.5 mNow, we know that :
[tex] \large \underline{\boxed{\tt{Area_{(triangle)} = \dfrac{1}{2} \times base \times height}}}[/tex]
So, by substituting values, Area of given triangle will be :
[tex] \sf : \implies Area = \dfrac{1}{2} \times 2.2\: m \times 0.5\: m[/tex]
[tex] \sf : \implies Area = \dfrac{1}{\cancel{2}} \times \dfrac{\cancel{22}}{10} \: m \times \dfrac{5}{10} \: m[/tex]
[tex] \sf : \implies Area = 1 \times \dfrac{11}{10} \: m \times \dfrac{5}{10}\: m[/tex]
[tex] \sf : \implies Area = \dfrac{55}{100} \: m^{2}[/tex]
[tex] \sf : \implies Area = 0.55 \: m^{2}[/tex]
Hence, Area of given triangle is 0.55 m².
help, due at 6:00, will give brainliest. HELP ASAP
Answer: Anwse is 36 and 23
Step-by-step explanation:
What is the value of z?
answer is z=17
hope that helped loll
Answer:
17
Step-by-step explanation:
30+31=61
180-61=119
119/7=17
Marty's cat weighs 10 pounds. This is 24 pounds less then the weight of his dog. Write and solve a subtraction equation to find the weight of Marty's dog.
Answer:
34
Step-by-step explanation:
The dog weighs 34 pounds
34-24=10
24+10=34
the gcf of 23 and 46
Please Help
write and equation in slope intercept form with the following information. slope = 7, y intercept = -9
Answer:
y=7×-9 I going to be your answer
What is the value of c?
answer is c=26
hope that helped loll
Answer:
by using angle sum property
Angles a+b+c = 180 degree.
thus, 42+86+c= 180
128+c=180
c=180-128
c=52
help please!!!!!!!!!!
Answer:
110 degrees
Step-by-step explanation:
the angles stay the same even if the size changes!
Answer:
110 because if you add up the angles and subtract the rest then you get it