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frosja888 [35]
3 years ago
7

−2/9−(−1/3÷3/5) What’s the answer? / means a fraction line

Mathematics
2 answers:
Cloud [144]3 years ago
5 0

Answer:

-7/9

Step-by-step explanation:

KatRina [158]3 years ago
3 0
The answer is -7/9.
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Factorise the following 4(x-1)²-9 need solution
kumpel [21]

Answer:x= 5/2 x= -1/2


Step-by-step explanation:

4(x-1)2-9

4(x2-2x+1) - 9

4x2 - 8x + 4 - 9

4x2 - 8x - 5

4x2 +2x - 10x - 5

2x(2x+1) - 5(2x+1)

(2x-5)(2x+1)

therefore, x= 5/2 x= -1/2




mark brainliest plzz

6 0
3 years ago
Which of the following expressions is equal to tan205°?
disa [49]
Tan205° = .466 tan55° = 1.428 tan25° = .466 -tan25° = " so just tan25
8 0
3 years ago
Lucy’s order at the restaurant came out to $44.20. She decided to leave a 15% tip for the waitress. What is the overall total am
Goshia [24]

Answer:

$50.83

Step-by-step explanation:

5 0
3 years ago
sonja wants to have $14000 in 13 years. calculate how much she should invest now at 6% interest, compounded semiannually in orde
mariarad [96]
She should invest $6491.73.

The equation we use to solve this is in the form
A=p(1+\frac{r}{n})^{nt}, 
where A is the total amount in the account, p is the principal invested, r is the interest rate as a decimal, n is the number of times per year the interest is compounded, and t is the amount of time.

A in our problem is 14000.
p is unknown.
r is 6% = 6/100 = 0.06.
n is 2, since it is compounded semiannually.
t  is 13.

14000=p(1+\frac{0.06}{2})^{13*2}
\\
\\14000=p(1+0.03)^{26}
\\
\\14000=p(1.03)^{26}
\\
\\\text{Dividing both sides by }1.03^{26}\text{, we have}
\\
\\\frac{14000}{1.03^{26}}=\frac{p(1.03)^{26}}{1.03^{26}}
\\
\\6491.73\approx p
5 0
3 years ago
D = 18 in. Fine the radius or diameter of each circle with the given dimensions. ​
Alborosie

Answer:

r= 9

Step-by-step explanation:

radius (r) = diameter (D)/2

= 18/2

= 9

4 0
3 years ago
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