Answer:
3 secsStep-by-step explanation:
Given the height of the object as it drops from the observation deck expressed as;
h= -16t^2+152
To determine the the time it will take the object to be 8 feet above the valley floor, we will substitute h = 8 into the equation and calculate t as shown;
8 = -16t^2+152
subtract 8 from both sides
8-8 = -16t^2+152-8
0 = -16t^2+144
0-144 = -16t^2
-144 = -16t^2
16t^2 = 144
Divide both sides by 16;
16t^2/16 = 144/16
t^2 = 9
t = √9
t = 3seconds
Hence it will take 3 seconds for the object to be 8 feet above the valley floor
If the domain for
f (x) = 3x + 2 is
{-2,4,7}
What is the range?
Answer:
{8,14,-19}=R
..................
What is the slope intercept formula for a vertical line?
Answer:
there isnt one i dont think. since the line never has a slope and rarely a y-intercept would be not way for an equation to be made unless it wa y=mx+b but that just slop intercept form. I dont know if that righ but ig u can try it
Step-by-step explanation:
how to find the slope
Answer:
m= [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Step-by-step explanation:
use this formula if you're having two points or a graph
Please help me out! answer all four questions please Im tired and want to go to bed.
Answer:
Hey buddy, here is your answer. Hope it helps you.
Step-by-step explanation:
1. 0.008
2. Square root of 64 is 8 and cube root of 64 is 4. The difference is 4.
3. Area=100 sq.cm. The side is 10 cm. so the perimeter is 4 x Side= 4x10=40 cm.
4. the two square roots of 25 are 5 and 5. Cuz 5 and 5 gives 25.
PLEASE HELP ME!! THANK YOU!!
9514 1404 393
Answer:
[-4,3]
Step-by-step explanation:
The domain is the left-right (horizontal) extent of the function. The dots at the end of the continuous line are solid, so the brackets on the interval are square brackets.
The left dot is at x=-4; the right dot is at x=3, so the domain is ...
[-4,3]
If the scale on a map is inches /miles = 1 /10, find the following actual distances.
a. 2 inches b. 1/2 inches c. 3.5 inches
Answer:a-20miles
b-5miles
C-35 miles
Step-by-step explanation:
Hello help with question please :)
Answer:
A
Step-by-step explanation:
slope is (y2-y1)/(x2-x1)
anyhow that comes out to -3/2
the only place that actually applies is in A
Answer:
A
Step-by-step explanation:
6=-3/2×-2+3
6=3+3
6=6
-3=-3/2×4 + 3
-3=-6+3
-3=-3
Plz help with this question and show explanation thanks
Answer:
4x^4yz^2(3-2xy^2)
Step-by-step explanation:
take common fitst
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]12 {x}^{4} y {z}^{2} - 8 {x}^{3} {y}^{3} {z}^{2} [/tex]
Factoring 4x³yz²
[tex]4 {x}^{3} y {z}^{2}(3x - 2 {y}^{2} )[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Using graph paper, determine the line described by the given point and slope. Click to show the correct graph below. (0,6) and -1
Answer:
Can't tell
Step-by-step explanation:
Hear me out. There is no graph hear, so I can't answer. Just letting you know
what is 411, 600, 000 in scientific notation
Answer:
4.116 × 108
Step-by-step explanation:
I simply used a Scientific Notation Converter
Answer:
The answer would be 4.116 x 10 exponent of 8
Step-by-step explanation:
In scientific notation, the answer has to be between 1-10, so to make this number between one and ten, you must create a decimal behind the number in the one's place and move it until you get to the first number (in this case, you would move it eight times, so your equation would be 4.116 x 10 to the eight power (exponent of eight). If you need to round the number to the tenth place, it's 4.1 x 10^8
Hope this helps!
Marvin rides his bike at an average speed of 13 miles per hour. How far can he bike in 8 hours?
Marvin can bike miles in 8 hours.
Answer:
104
Step-by-step explanation:
13x8=104
3. Give the domain and range of the relation. Tell whether the relation is a function, 1 1 3 1 6 8. D: {0,1}: R: 1-5, -1,3,6} The relation is a function. b. D: {0,1); R: -5, -1,3,6) The relation is not a function. D: -5,-1,3,6); R: (0,1} The relation is not a function. d. D:{-5, -1,3,6); R: (0,1} The relation is a function.
Answer:
D
Step-by-step explanation:
3. A merchant sold a pen for $6.90, thereby making a profit of 15% on the cost to her. Calculate:
a. the cost price of the pen to the merchant to the nearest cent.
b. the selling price the merchant should request in order to make a 25% profit instead.
Answer:
A.$6.44
B.$8.05
Step-by-step explanation:
A.$6.90/15%=$0.46-$6.90=$6.44
B.$6.44*25%=$1.61+$6.44=$8.05
Answer:
answer for 6.90/15%= 6
answer for 25%= 7.5
Step-by-step explanation: These are answer is all correct there are no mistakes
Decide whether this statement is always true, never true, or sometimes true, and explain why: In a quadratic equation of the form 0 = ax2 + bx + c, there will be two real solutions if a and c are of opposite signs
Answer:
Always true
Step-by-step explanation:
Here, we want to evaluate if the given statement is true
The discriminant D can be calculated using the formula;
b^2 - 4ac
if D is greater than 0, then we will have only real roots
In a case where a and c are of opposite signs;
then -4ac will always give a positive value which can be added to b^2
This positive value will ensure that D is greater than zero and hence we can have only real roots
So this assertion is always true if a and c are of opposite signs
i want to purchase a necklace for 325$ . ive already saved 115.00 and can set aside 22.00$ a week . which inequality can be used to find the number of weeks it will take to save at least 325.00$?
Answer:
22w + 115 = 325 w = about 10 weeks
Step-by-step explanation:
The first part of this inequaltiy is 22w. Since he/she will set aside $22 a week, you would put a variable because the number of weeks you will need to set aside $22 is unknown therefore you put a variable that makes sense. I put w because you can say that w=weeks. The next part of the inequality is adding $115 because he/she has already saved $115 so we add that to 22w. Finally 22w+115 has to equal $325 because that is how much the necklace costs. Hope this helps!
GUYS CAN YOU PLS HELP M EILL GIVE YOU BRANLIEST
Answer:
Mother nature
Step-by-step explanation:
grocery: 3.5/7= 0.5
sullivan`s: 1/10 / 1/5 = 1/2 = 0.5
mother: 4.00/10= 0.4
farmers 0.45
Answer:
Hm im not sure be I think it should be B.
Step-by-step explanation:
steve jobs sells apples and gets paid a minimum weekly salary of $660. He also gets paid on a graduated commission scale. He gets 4% of the first $2000 and 6% of anything over $2000. How much would he earn if he sold $15,000 worth of apples last week?
A. 1520
B. 1500
C. 640
D. 660
Answer:
Step-by-step explanation:
660 flat salary
2000*4%= 80
13000*6%=780
660+80+780= 1520
Answer:
660+80+780= 1520
Step-by-step explanation:
Hope that helps
lemme know
Explain your reasoning for how you got true or false ?!
Is ABD congruent to CBD?
Please help! I’ll give brainliest!!
3x(x-2)-x^2+4=0
Help
Answer:
x=2,1 solving with quadratic formula
Step-by-step explanation:
-2 (-3x + 3) + 2x = 58
Answer:
x = 8
Step-by-step explanation:
Given
- 2(- 3x + 3) + 2x = 58 ← distribute and simplify left side
6x - 6 + 2x = 58
8x - 6 = 58 ( add 6 to both sides )
8x = 64 ( divide both sides by 8 )
x = 8
THIS IS VERY URGENT AND I WILL GIVE BRAINLIEST
Can you please help with the four and eight
Balon
300
100
3
1
7
10
M
4 (2pts) Above a line is drawn. There are
2 points A and B. Point A (3.98) Point
B (9, 179). Find the slope using the
formula.
8 2pts) What is the y-intercept of your
line, and what is its real-world
meaning?
13) Find the value for x and y.
Someone help me please thanks
Answer:
x=14 y=37
Step-by-step explanation:
Please answer correctly !!!!!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!!!!
what see 230×28 i need help bad plz help me
Answer: 6,440
2
Step-by-step explanation: 230
x 28
————-
1
1,840
+ 4,600
—————
6,440
16 points
1) Write the following in standard form (answer). *
4^5
Answer:
1024
Step-by-step explanation:
You could put 4^5 into your calculator. It’s 4*4*4*4*4= 1024
The angle measurements in the diagram are represented
by the following expressions.
ZA= 63 - 189
ZB = 142 + 38°
Solve for x and then find the measure of ZA:
Answer:
∠A = 30°Step-by-step explanation:
∠A + ∠B = 180
where ∠A = 6x - 18
∠B = 14x + 38
first step is to solve for x:
6x - 18 + 14x + 38 = 180
6x + 14x = 180 + 18 - 38
20x = 160
x = 160 / 20
x = 8
now substitute x=8 into angle A
∠A = 6x - 18
∠A = 6(8) - 18
∠A = 30°
Write the ratio as a fraction in simplest form.
3 ft to 9 yd
The ratio in simplest form is
(Type the ratio as a simplified fraction.)
harjot singh answer hai brown
Need help fast with my work
Answer:
-25
Step-by-step explanation:
10 employees only eat
vegetables and 25 employees
eat meat. What is the ratio of
the employees who only eat
vegetables to employees who
eat meat?
Answer: the ratio 2:5
Step-by-step explanation:
I think thats the answer,
The Charles River in Massachusetts is 130 km long.
How long will it be on a map drawn at the scale 1:2,000,000?
plsplsplsplsplsplsplspslpslpslpslpslsplspslplsplspslpslpslpslpslpls help
rsm is hard
Answer:9
Step-by-step explanation:
basically what you do is 1equal 1 divided by 8 2 68 equals one so yea
Answer: 6.5 cm
Step-by-step explanation:
1 km= 1000000 cm
130 km / 2,000,000 = 6.5