I need help with this math problem please

I Need Help With This Math Problem Please

Answers

Answer 1

Answer:

t has 2 real solutions

t is about 0.172 or -1.19

Step-by-step explanation:

h= height=2

h=-4.9t^2-5t+3

2= -4.9t^2-5t+3

Solve for t


Related Questions

AC =
Round your answer to the nearest hundredth.
4

Answers

4 rounded to the nearest hundred is 0 !

The image of the point (1, -2) after a rotation of 180° about the origin is

(-2, 1)
(2, -1)
(-1, 2)

Answers

Answer:

(-1,2)

Step-by-step explanation:

Found answer on brainly.

Answer:

(-1,2)

Step-by-step explanation:

In this problem, the signs are switched because there is a rule to 180 rotation that is (x,y) to (-x,-y).

(1,-2)×(-1x, -1y)= (-1,2) .

if both points were negative, the points would be positive. if they were positive, they would be negative.



What is the volume of the following triangular prism?

60 cm3
12 cm3
3.75 cm3
6 cm3

Answers

Answer:

what prism?

I've done the same test before so I know the answer is 6 cm3

Could you please include the picture of the prism next time?

Step-by-step explanation:

Answer:

Im a bit late but the answer us 6 cm3

Step-by-step explanation:

The formula to find the volume of a triangular prism is

(1/2 x length x width) x height

or in other words

base x height

The base is the triangle on the side of the prism.

1 only
2 only
3 and 4
2 and 4

Answers

Answer:

the second one

Step-by-step explanation:

18. Describe the shape of the data distribution.

Answers

Answer:

B.

Step-by-step explanation:

The shape of data distribution is "symmetric".

What is the constant of proportionality between y and x in the graph

Answers

Answer:

I think its 2

Step-by-step explanation:

I counted by ones and then i found that the pint is between 4 and 2 so when i divided 4 by 2 and i got 2

Hope this helps Ask if i am wrong Brainliest plz

If A and B are independent events and P(A) = 0.8 and P(A and B) = 0.3, find P(B).
*
3/8
6/25
8/3
25/6

Answers

Answer:

6\25

Step-by-step explanation:

Adam and Martha each performed a simulation.
Adam's simulation
• He tossed a fair coin 4 times.
• Each time the coin landed with tails face up.
Martha's simulation
• She randomly chose 1 block from each of two bags containing blocks.
• Each block she chose was labeled with the letter R.
The probability for both Adam's and Martha's simulation were the same. Which two bags could be the
ones Martha used in her simulation?

Answers

Answer:

Its D

Step-by-step explanation:


Which of the following pairs of values for x and y would justify the claim that the two triangles are congruent?


Answers


You did not post any pairs..

Answer: x=3 ,y=11

Step-by-step explanation:

Giving Brainliest if correct!!

Suppose Malcom makes a down payment when he applies for a car loan. Which statement is true?

A. Interest charged for the loan will be calculated based on the price of the car minus the down payment.

B. Interest charged for the loan will be calculated based on the price of the car plus the down payment.

C. Malcom will not be charged interest on the loan because he made a down payment.

D. Interest charged for the loan will be calculated based only on the down payment.

E. Interest charged for the loan will be calculated based only on the price of the car.

Answers

Answer:

The correct answer is A I think

A. Interest charged for the loan will be calculated based on the price of the car minus the down payment.

Step-by-step explanation:

You can buy 3 apples at the Quick Market for $1.35. You can buy 5 of the same apples at Stop and Save for
$1.00. Which place is the better buy?

Answers

Stop and Save is the better buy because its $1.00 for 5 apples so its 20 cents per apple

and

Quick Market is $1.35 for 3 apples so its 45 cents per apple

[tex]1.00 \div 5 = 0.20[/tex]

Stop and Save Better Buy

[tex]1.35 \div 3 = 0.45[/tex]

Quick Market

PLEASE HELP. WILL GIVE 30 POINTS AND BRAINLIEST!!!!


In one school, a half of all students who like math like science as well. Also, in that school, a third of all students who like science also like math.
b)
In that school, what is the ratio of the number of students who like math to the number of students who like science?

Answers

Answer: Is there a total for how many kids like each? If there isn't than this is how I would solve it. For percentage purposes let's say there are 100 students. 50 like math, 50 like science. Half of the students who like math also like science, which means 75 percent of the school likes science. A third of students who like science also like math, and since 75 percent of the school of 100 children likes science, that would mean 1/3 of that is 25, which would mean 75 percentof all students like math. Hence the ratio, I believe, is 1 to 1.

Step-by-step explanation:

PLEASE GIVE BRAINLIEST

Answer:

well if you add the third of students to math and the third of students from science I think thats the answer

Step-by-step explanation:


When Sophia runs the 400 meter dash, her finishing times are normally distributed with a mean of 75 seconds and a standard deviation of 1.1 second. What probability of races will her finishing time be between 74.2 and 76.4 seconds?

Round to the hundredths place (2 places after the decimal)

Answers

Answer: 90% of the time.

Step-by-step explanation: This is because you can add the two different times and the standard time of 75 seconds, divide it all by 3 leaving you with 75.2 and that is 0.2 away from the original between those times all together. Take that 0.2 and subtract it from the 1.1 deviation and you’ll get 0.9 times that by 100 and you get it in a percentage; 90%.

need asap!!!!!!!! please

Answers

Answer:

ZY = 14, SQ= 28

Step-by-step explanation:

Because of "ZR=ZS" and "YR=YQ", so we can apply the Thales theorem:

[tex]\frac{x+2}{3x-8}=\frac{RZ}{RS} =\frac{1}{2} \\[/tex]

so 2(x+2)= 3x-8

2x+4 = 3x-8

2x-3x= -8 -4

-x = -12

or x =12

ZY = x+ 2 = 12+ 2 = 14

SQ= 2*ZY= 2*14 = 28

If cot x = -4/3 find csc x, if 270°<x<360"​

Answers

Answer:

csc x = - [tex]\frac{5}{3}[/tex]

Step-by-step explanation:

Using the trigonometric identity

csc²x = 1 + cot²x

         = 1 + (- [tex]\frac{4}{3}[/tex] )² = 1 + [tex]\frac{16}{9}[/tex] = [tex]\frac{25}{9}[/tex], thus

csc x = ± [tex]\sqrt{\frac{25}{9} }[/tex] = ± [tex]\frac{5}{3}[/tex]

Since 270° < x < 360° where csc x < 0 , then

csc x = - [tex]\frac{5}{3}[/tex]

Complete 4,5,6 for 25 points.

Answers

Answer:

Step-by-step explanation:

4. A = P + Prt

   a. Solve for r

    Prt = P - A

    r = (P - A)/Pt

    b. Solve for t

         Prt = P - A

           t = (P - A)/Pr

5. Ax + By = C

   a. By = C - Ax

        y = (C - Ax)/B

   b. Ax = C - By

       x = (C - By)/A

6. y = mx + b

   a. mx + b = y

       mx = y - b

       x = (y - b)/m

    b. mx + b = y

        mx = y - b

        m= (y - b)/x

   c. mx + b = y

       b = y - mx

PLEASE HELP ME! I'm really confusedddddddd!

Answers

Answer:

1) Negative (because y value decreases from left to right)

2) Undefined (a vertical line has undefined slope because it fails the vertical line test infinite times)

3) Positive (because y value increases from left to right)

Step-by-step explanation:

Help !!!!!!!!!!!!!!!!!!! Please !!!!!

Answers

Answer: (A). 6x^8y^5

B). 4x^5y^8

C). 12a^9b^7

D). 6s^9t^3

Step-by-step explanation:

Which product of prime polynomials is equivalent to 4x°- 6x
• 44³ _ 6x²2
O 2x2(x + 1)(2x - 3)
O 2x²(x2 - 1)(2x + 3)
O x2(x + 1)(2x - 3)
O2(x2 - 1)(2x + 3)

Answers

Answer:

the answer is O 2x (x2-1)(2x+ 3)

Answer:

The correct answer is 2x^2(x^2 + 1)(2x - 3)

Step-by-step explanation:

First, you would factor out a single factor out of all of them, which is 2x^2. So, you would have 2x^2 (2x^3 - 3x^2 + 2x - 3) Then, you would use double grouping. When you have double grouped, you will have x^2(2x-3) and 1(2x-3) for the factors. The final factors for that is (x^2 + 1) and (2x - 3), then you would just put 2x^2 in the front to give you the final factorization and the correct answer stated at the top.

ASAP MULTIPLE CHOICE:
Which equation could be solved using this application of the quadratic formula?

A. -2x2 − 8 = 10x − 3
B. 3x2 − 8x − 10 = 4
C. 3x2 + 8x − 10 = -8
D. -2x2 + 8x − 3 = 4

Answers

Answer:

3x^2 +8x -10=-8

Step-by-step explanation:

A quadratic equation is

ax^2 + bx +c=0

has a formula

-b ± sqrt( b^2 -4ac)

--------------------------

  2a

We know a = 3   b = 8 and c = -2

3x^2 +8x -2=0

Subtract 8 from each side

3x^2 +8x -2 -8=0-8

3x^2 +8x -10=-8

That is choice C

Answer:

C.

Step-by-step explanation:

Consider equation C:

3x^2 + 8x - 10 = -8

3x^2 + 8x - 2 = 0

Here a = 3, b = 8 and c = -2

Applying the quadratic formula:

x  = [-b +/-  √(b^2 - 4ac)] / 2a

x = [-8 +/- √(4(3)(-2)] / 2(3)

- which is the one in the question.

So it is equation C.

Is it easier to calculate surface area of a net or 3D figure? Explain your reasoning.

Answers

Answer:

I think it is easier to calculat the surface area with a net.

You get to see the 3d picture in 2d so it is easy to find the area of the shape.

what's 30x-9=900????????​

Answers

Answer:

30.3

Step-by-step explanation:

909/30 = 30.3

x = 30.3

Answer: 300.3

Step-by-step explanation

30x-9=9000

30x=9009

x= 300.3

What is the slope of the line that passes through the points (4, 10) and (1, 10)?
Write your answer in simplest form

Answers

Answer:

The slope will be 0

Step-by-step explanation:

Once you do the slope formula which is y2 - y1 over x2-x1

You will get 0/3 in this case. So if the numerator is a 0 the slope will also be 0.

The slope of the a straight line is given by the ratio of the Rise to the Run

of the line. The rise between the given points is zero.

The slope of the line that passes through the points (4, 10) and (1, 10) is zero.

Reason:

The given points are; (4, 10) and (1, 10)

The slope of a line, m, is given by the following formula;

[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

Where;

(x₁, y₁) = (4, 10) and (x₂. y₂) = (1, 10), we get;

[tex]Slope, \, m =\dfrac{10-10}{1-4} = 0[/tex]

The slope of the line that passes through the points (4, 10) and (1, 10) is 0.

Learn more here:

https://brainly.com/question/19506739

Larry the librarian and Courtney the lawyer are having a debate. Larry contends that the library is bigger than the courthouse in terms of area. Courtney contends the opposite.
To settle their debate, they find satellite images of both buildings and juxtapose them on a single coordinate grid (shown below).
The area of the library is
\text{m}^2m
2
start text, m, end text, squared.
Round the final answer to the nearest square meter. Do not round intermediate calculations.
The area of the courthouse is
\text{m}^2m
2
start text, m, end text, squared.
Round the final answer to the nearest square meter. Do not round intermediate calculations.

Answers

Answer:

Library's Area= 5200

Courthouse' Area= 5027

Larry is correct.

Step-by-step explanation:

Which is the definition of a line segment?

Answers

DescriptionIn geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints. A closed line segment includes both endpoints, while an open line segment excludes both endpoints; a half-open line segment includes exactly one of the endpoints.

Answer:

In geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints. A closed line segment includes both endpoints, while an open line segment excludes both endpoints; a half-open line segment includes exactly one of the endpoints.

Step-by-step explanation:

So basically its the part of a line that connects two points.

Which inequality correctly compares Five-sixths, One-half, Three-ninths, and 1?
Three-ninths < Five-sixths < One-half < 1
Three-ninths < One-half < Five-sixths < 1
Five-sixths < Three-ninths < One-half < 1
Five-sixths < One-half < Three-ninths < 1

Answers

Answer:

Three-ninths < One-half < Five-sixths < 1

Step-by-step explanation:

We are supposed to compares Five-sixths, One-half, Three-ninths, and 1

[tex]\frac{5}{6} , \frac{1}{2},\frac{3}{9} , 1[/tex]

Take LCM of denominators

LCM of 6,9,2,1 = 18

[tex]\frac{5}{6} \times \frac{3}{3}=\frac{15}{18}[/tex]

[tex]\frac{1}{2} \times \frac{9}{9}=\frac{9}{18}[/tex]

[tex]\frac{3}{9} \times \frac{2}{2}=\frac{6}{18}[/tex]

[tex]1 \times \frac{18}{18} = \frac{18}{18}[/tex]

[tex]\frac{6}{18}<\frac{9}{18}<\frac{15}{18}<\frac{18}{18}[/tex]

[tex]\frac{3}{9}<\frac{1}{2}<\frac{5}{6} < 1[/tex]

Three-ninths < One-half < Five-sixths < 1

Answer:

Three-ninths < One-half < Five-sixths < 1

Step-by-step explanation:

Solve for k. Describe the steps taken to find the solution.
8 + 10 - 6k = 6(4 - k)

Answers

Answer:

no solutions

Step-by-step explanation:

8 + 10 - 6k = 6(4 - k)

Distribute

8 + 10 - 6k = 24 -6k

Combine like terms

18 -6k = 24 -6k

Add 6k  to each side

18 - 6k +6k = 24 - 6k+6k

18 = 24

This is never true so there are no solutions

Hey there! I'm happy to help you out!

To solve for k, we have to isolate it on one side of the equation and put all the constants on the other side.

The first thing we need to do is get the k on the right side out of parentheses. To do this, we will use the distributive property!

8+10-6k=24-6k

Now, we will combine like terms.

18-6k=24-6k

We want to get all the ks on the left side and all the constants on the right. Let's add six k to both sides to cancel out the -6k on the right.

18=24

As you can see, our variables canceled out. This is because our equation was saying 18 minus six of something was equal to 24 minus six of something, which makes no sense because that doesn't work!

We are left with 18=24, which isn't even a true equation! Therefore, there is no solution to this equation.

I hope that this helps! Have a wonderful day!

Can someone pls help

Answers

Answer:

a=he went back home

b=speed=240km/h

Step-by-step explanation:

ps: wouldn't mind brainliest

Answer:

a) Jo moved 1 kn from her starting position at minute 10

b) 0.13 km/min

Step-by-step explanation:

Look at the picture

4.9.14
Solve the following system by substitution.
{
y = x2 + 6x + 10
y = -X+4
Select the correct choice and fill in any answer

- the solution(s) is/are :
- there is no solution

Answers

Answer:

(- 6, 10 ) and (- 1, 5 )

Step-by-step explanation:

Given the 2 equations

y = x² + 6x + 10 → (1)

y = - x + 4 → (2)

Substitute y =  x² + 6x + 10 into (2)

x² + 6x + 10 = - x + 4 ( subtract - x + 4 from both sides )

x² + 7x + 6 = 0 ← in standard form

(x + 1)(x + 6) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x + 6 = 0 ⇒ x = - 6

Equate these values into (2) for corresponding values of y

x = - 1 : y = - (- 1) + 4 = 1 + 4 = 5 ⇒ (- 1, 5 )

x = - 6 : y = - (- 6) + 4 = 6 + 4 = 10 ⇒ (- 6, 10 )

what is the result when 2×^4-5×^3+8×^2-4×-16 is divided by x-2​

Answers

The result is 2x^3-x^2+6x+8
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