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Colt1911 [192]
2 years ago
13

Sean and mason run out of gas while fishing from their boat in the bay. They set off an emergency flare with and initial velocit

y of 30 meters per second. The height of the flare in meters can be modeled by h(t) = -5t^2 + 30t, where t represents the number of seconds after launch. Sean wants to know how high the flare will reach above the surface of water. a. Write the function in vertex form, factoring so the coefficient of t^2 is 1. b. Complete the square using the vertex form of the function. c. How high will the flare reach?
Mathematics
1 answer:
Arturiano [62]2 years ago
5 0

Answer:

Step-by-step explanation:

v

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Andrea needs 4 kilograms of oranges. The scale below shows the weight of the oranges she has in her kitchen. Part A. About how m
juin [17]
We know that

<span>each space on the balance represents
1 kg/ 10 spaces----------> 0.10 kg
in the picture there are 14 spaces
so
14*0.1-------> 1.4 Kg
</span>
Part A) About how many kilograms of oranges does Andrea have? Round your answer to the nearest kilogram

Andrea has 1.4 kg of oranges------> to the nearest kilogram-----> 1 Kg

the answer is
1 kg

Part B) About how many more kilograms of oranges does Andrea need?
Andrea needs=(4 Kg-1.4 Kg)------> 2.6 Kg

the answer part B) is
2.6 Kg
8 0
3 years ago
How to solve for b = -1 -7a when the input,a, is 6
azamat

Answer:

-43

Step-by-step explanation:

Input 6 where a is so then do -7 x 6 which would be -42

the equation is now b = -1 - 42

-1 -42 = -43

8 0
3 years ago
Find the length of segment EG. Show all the work
svp [43]

Answer:

Hi I love you and I miss you

I don't know the answear sorry

5 0
2 years ago
What are the roots of the polynomial equation x3-7x=6x-12?
Ilia_Sergeevich [38]
This is not a polynomial equation unless one of those is squared.  As it stands x=-.833.  If you can tell me which is squared I can help solve the polynomial.

Ok, that is usually notated as x^3 to be clear.   I'll solve it now.

x^3-13x-12=0

Then use factor theorum to solve x^3-13x-12/x+1 =0
So you get one solution of x+1=0
x=-1

Then you have x^2-x-12 now you complete the square.

Take half of the x-term coefficient and square it. Add this value to both sides. In this example we have:

The x-term coefficient = −1

The half of the x-term coefficient = −1/2

After squaring we have (−1/2)2=1/4

When we add 1/4 to both sides we have:

x2−x+1/4=12+1/4

STEP 3: Simplify right side

x2−x+1/4=49/4

STEP 4: Write the perfect square on the left.

<span>(x−1/2)2=<span>49/4
</span></span>

STEP 5: Take the square root of both sides.

x−1/2=±√49/4

STEP 6: Solve for x.

<span>x=1/2±</span>√49/4

that is,

<span>x1=−3</span>

<span>x2=4</span>

<span>and the one from before </span>

<span>x=-1</span>

7 0
3 years ago
Read 2 more answers
RS= 4y+2, ST = 3y+8, and RT = 38 what is the value of y
emmainna [20.7K]

Answer:

y = 4

Step-by-step explanation:

Given that,

RS= 4y+2, ST = 3y+8, and RT = 38

We need to find the value of y.

As,

RT = RS+ST

Put all the values,

38 = 4y+2+3y+8

38-2-8 = 4y+3y

28 = 7y

y = 4

So, the value of y is equal to 4.

7 0
3 years ago
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