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Goshia [24]
3 years ago
12

Hey can you please help me posted picture of question :)

Mathematics
2 answers:
evablogger [386]3 years ago
7 0
Answer:
The roots are -3+√6 and -3-√6

Explanation:
First, we would need to put the equation in standard form which is as follows:
ax² + bx + c = 0
This can be done as follows:
x² + 6x + 9 - 6 = 0
x² + 6x + 3 = 0

By comparison:
a = 1
b = 6
c = 3

Now, to get the roots, we will need to used the quadratic formula shown in the attached image.

By substitution, we would find that:
either x = -3 + √6
or x = -3 - √6

Hope this helps :)

mixas84 [53]3 years ago
4 0
The roots are letter A and B. 
You can solve it by using quadratic formula
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-5y-9 =-(-1)<br> A.- 1/2<br> B. -2 1/2<br> C. -2<br> D. -2/5
lbvjy [14]

Answer:

-5y=1+9

-5y=10

Y=-2

Your answer is C

3 0
3 years ago
Laura and Chase wants to go to a baseball game. But, the tickets cost $300 each. Laura only had $20 left because she went shoppi
Natalija [7]

Answer:

No they don’t have enough money

Step-by-step explanation:

No:

54+20=74=that’s not enough

211+189=400

Thats enough but they’re are two of them so it would only be enough for one of them

I HOPE THIS IS WHAT YOU’RE LOOKING FOR AND IF NOT THEN I’M SO SO SORRY

5 0
2 years ago
The amount in kilograms, a, of a radioactive element that remains after t hours can be modeled by the equation a= 0.65(0.92)to t
elena-14-01-66 [18.8K]

Answer:

The rate of decrease is 8%

Step-by-step explanation:

we know that

The general equation for the radioactive decay can be written as:

a=a_0(1-r)^t

where

a is the amount in kilograms after time t.

a_0 is the original amount of the substance or y-intercept of the function

r is the decay rate, written in decimals.

t is the time

In this problem we have

a=0.65(0.92)^t

so

a_0=0.65\\(1-r)=0.92

solve for r

r=1-0.92=0.08

Convert to percentage

0.08(100)=8\%

6 0
3 years ago
Please help with this question
natita [175]

Answer:

  12\sin{(2\theta)}\cos{(\theta)}

Step-by-step explanation:

The appropriate trig identity is ...

  \sin{a}+\sin{b}=2\sin{\left(\dfrac{a+b}{2}\right)}\cos{\left(\dfrac{a-b}{2}\right)}

Here, you have a scale factor of 6 and a=3θ, b=θ. Filling in these values gives ...

  6\sin{3\theta}+6\sin{\theta}=12\sin{\left(\dfrac{3\theta+\theta}{2}\right)}\cos{\left(\dfrac{3\theta-\theta}{2}\right)}\\\\=12\sin{(2\theta)}\cos{(\theta)}

8 0
2 years ago
Joe Morris Plains to fertilize his 1800 foot wide Hayfield he will be using his truck spreader that spreads of 60-foot strip how
gayaneshka [121]

Answer:

He should do 30 strips

Step-by-step explanation:60 times 3 is180 so and aa 0 to 180 and get 1800 so then you and the 0 to 3 and get 30

6 0
3 years ago
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