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Gekata [30.6K]
2 years ago
11

I need to find the vertex for 3x^2 + 2x - 1

Mathematics
2 answers:
bezimeni [28]2 years ago
6 0

Answer:

4 easy

Step-by-step explanation:

hope it helps

Nataliya [291]2 years ago
6 0
4 hope it’ll help. Hubjknhj
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Solve the porportion using cross products 18/20=k/110
adoni [48]
18/20=K/110
20K= 110*18
20K= 1980
K= 99
4 0
2 years ago
dolores and four friends went to a buffet dinner.The total cost was at most $130 including the $20 dollar tip they left.How much
Levart [38]
So the actual meal was at most 130 dollars they paid minus the 20 dolars tip: 130-20=110 dollars.

it was 5 people: Dolores+5 friends, who presumably all paid the same (buffet).

then we have to divide the 110 among the 5 people: it's 110/5=22

so each of them paid at most 22 dollars:

x (the amount they paid)≤22

5 0
3 years ago
Select whether each statement shows an example of the
xz_007 [3.2K]
1.no should b 8x + 20
2.no should be 21x + 14
3.yes
3.yes
4 0
2 years ago
Read 2 more answers
An angle, θ, is in standard position. The terminal side of the angle passes through the point (4, 5).
lara31 [8.8K]

Answer:

cos Θ = \frac{4}{\sqrt{41} }

Step-by-step explanation:

Given the angle passes through (4, 5 ) then the right triangle with sides 4 and 5 has hypotenuse h given by

h² = 4² + 5² = 16 + 25 = 41 ( take the square root of both sides )

h = \sqrt{41}

In relation to Θ, 4 is adjacent and 5 is opposite, thus

cos Θ = \frac{adjacent}{hypotenuse} = \frac{4}{\sqrt{41} }

5 0
3 years ago
2. On December 31, Juan Carlos made a $ 7,000 deposit in an account that pays 2.975% interest compounded semi-annually. How much
inna [77]

Answer:$ 7425.89

Step-by-step explanation:

Formula to find the compound amount ( compounded semiannually) :-

A=P(1+\dfrac{r}{2})^{2n} , where P is the principal amount, r is rate of interest ( in decimal), and n is time in years.

Given : P= $7000

r=2.975%=0.02975

Time : n= 2

Then, The amount in account after 2 years:-

A=7000(1+\dfrac{0.02975}{2})^{2\times2}\\\\=7425.88565609\approx7425.89

Hence, Amount in account after 2 years = $ 7425.89

6 0
3 years ago
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