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melomori [17]
3 years ago
11

PLEASE HELP ITS EASY AND ITS DUE TOMORROW PLEASEEEEEEEEEEEEEEEE

Mathematics
2 answers:
IRISSAK [1]3 years ago
6 0
Answer; -6.6

Explanation

You add the numbers normally and since they are both negative you just leave the number negative
user100 [1]3 years ago
3 0

Answer:

-6.6

Step-by-step explanation:

-1.3 + - 5.3 is equal to

-1.3 - 5.3. That is equal to

- ( 5.3 + 1.3 ).

5.3 + 1.3 equals 6.6

6.6 x -1 = -6.6

Therefore, the answer is - 6.6

Hope this helps!

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A ball is kicked in the air. The height of the ball can be calculated using the equation h(t) =-16t^2+64t+190, where h is in hei
gregori [183]

Answer:

Therefore the ball strikes the ground  5.98 s after kick.          

Step-by-step explanation:

Given that , a ball is kicked in the air. The height of the ball can be calculated using the equation h(t)=-16t^2+64t+190    where h is height in feet and t is time in second.

When the ball touches the ground then the height will be zero.

i.e h(t)=0

Therefore

-16t^2+64t+190=0

\Rightarrow -2(8t^2-32t-95)=0

Since -2≠0 then (8t^2-32t-95)=0

(8t^2-32t-95)=0    

[The solution of a quadratic equation ax²+bx+c=0 is

  x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}  here a=8, b=-32 and c=-95]                    

\Rightarrow t =\frac{-(-32)\pm\sqrt{(-32)^2-[4\times8\times(-95)]} }{2\times8}        

\Rightarrow t =\frac{32\pm\sqrt{4064} }{16}    

Therefore   t=  5.98 or -1.98

since time can not be negative So , t=5.98 s

Therefore the ball strikes the ground  5.98 s after kick.          

5 0
3 years ago
Factor this problem<br> 6x^2-5x-1&gt;0
Greeley [361]
6x^2-5x-1>0

(6x-1)(x+1)

x=1/6 x=-1
3 0
3 years ago
If i am right in this problem, How can i show my work for this equation?
elena-14-01-66 [18.8K]

Answer: x2 + 4x + 11

Step-by-step explanation:

(x + 2)2 + 7

(x+2)(x+2) + 7

X2 + 2x + 2x + 4 + 7

x2 + 4x + 11

7 0
3 years ago
Read 2 more answers
As soon as I knew cars purchased and driven away from the dealership it begins to lose its value or depreciate also bought a 199
balandron [24]

Answer:

  11.1%

Step-by-step explanation:

The percentage change in a value can be computed from ...

  %change = ((new value)/(old value) -1) × 100%

  = ((8500/9559) -1) × 100%

  = (0.8892 -1) × 100%

  = -11.08%

The value of the car decreased about 11.1% in the first year.

5 0
3 years ago
A credit union client deposits $3,300 in an account earning 6.5% interest, compounded annually. What will the balance of the acc
astra-53 [7]

Answer:

The balance of account at the end of 36 years is $31,849.29

Step-by-step explanation:

We are given the following in the question:

P = $3,300

r = 6.5% = 0.065

t = 36 years

The compound interest is given by:

A = p\bigg(1+\dfrac{r}{n}\bigg)^{nt}

where A is the amount, p is the principal, r is the interest rate, t is the time in years and n is the nature of compound interest.

Since interest is compounded annualy we use n = 1

A = 3300\bigg(1+\dfrac{0.065}{1}\bigg)^{36}\\\\A = \$31,849.29

Thus, balance of account at the end of 36 years is $31,849.29

6 0
2 years ago
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