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vlabodo [156]
3 years ago
6

Help with number 1 is needed I don’t understand

Mathematics
1 answer:
irga5000 [103]3 years ago
7 0

Answer:

4

Step-by-step explanation:

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Use the elimination method to solve the system of equations. Choose the correct ordered pair
olchik [2.2K]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP!!!
Black_prince [1.1K]

Answer:

Step-by-step explanation:

substitute and solve:

100 = bh

100 = b(2b)

100 = 2b²

50 = b²

b = √50

b = √(25 * 2)

b = 5√2

solve for h:

h = 2b

h = 2(5√2)

h = 10√2

if you are told to round to 1 DP :

b ≈ 7.1 m

h ≈ 14.1 m

3 0
3 years ago
Read 2 more answers
Find the center and the radius (x+6)2 + (y-5)2 = 8
Leni [432]

Answer:

The center is (-6,5) and the radius is 2 sqrt(2)

Step-by-step explanation:

The equation of a circle can be written in the form

(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius

(x+6)^2 + (y-5)^2 = (sqrt(8))^2

rewriting this

(x - -6)^2 + (y-5)^2 = (2 sqrt(2))^2

The center is (-6,5) and the radius is 2 sqrt(2)

7 0
4 years ago
-3 x - 5 = 36. What is X?
Black_prince [1.1K]

Answer:

x = -13,67

Step-by-step explanation:

-3x - 5 = 36

-3x = 36 + 5

-3x = 41

x = 41/-3

x = -13 2/3

or

x = -13,67

make as the brainliest

7 0
4 years ago
You invested $4,200 into an account that pays an interest rate of 3.5% compounded continuously. What is the balance of your acco
nordsb [41]

Answer:

A=\$5003.2

Step-by-step explanation:

Use the exponential growth formula

A = Pe ^ {rt}

Where A is the final amount in the account, P is the initial amount, r is the growth rate and t is the time in years

In this problem

We know that

P=4,200\\\\r=\frac{3.5\%}{100\%}= 0.035\\\\ t=5\ years

So

A = 4,200e^{0.035t}

Finally after 5 years the balance of the account is:

A=\$5003.2

7 0
3 years ago
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