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2 years ago

Will Mark Brainlest Help Please ,,,,

Mathematics

1 answer:

Mkey [24]2 years ago

6 0

Step-by-step explanation:

from the second:

A=[3 -1]. -2B

[-5 0]

input this into 1

2([3 -1]) -(2B) -B =[1 3]

([-5 0]). [0 5]

[6 -2] -4B-B=[1 3]

[-10 0]. [0 5]

-5B=[1 3] -[3 -1]

[0 5]. [-5 0]

-5B= [1-3 3+1]

[0+5 5+0]

B= [-2/5 4/5]

[1 1]

A=[(19/5) (3/5)]

[-3. 2]

using the formula I derived

that's how I got A

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Convert 60 mi/hr to feet per second

Alecsey [184]

Answer:

Step-by-step explanation:

the easy way to convert mi/hr to feet/s is multiply the speed value by 1.467

$60 \times 1.467 = 88.02 = 88 \: (approx)$

3 0

2 years ago

Find the missing terms in the following geometric sequence.

qaws [65]

Answer:

Answer: Option d. 36,108 is the correct answer.

Step-by-step explanation:

In this question we have given a sequence of four terms and we know the first and last term.

Now we have to calculate the ratio of the terms so that we can complete the sequence.

We know the formula of the sequence A(n) = $A(1)r^{n-1}$

Now we know A(4)=324

A(1) = 12

n = 4

So we the values in the formula

324 = $12(r^{4-1)}$

324 = $12r^{3}$

$r^{3} =\frac{324}{12}$

$r=\sqrt[3]{27}$

r = 3

So the sequence will be 12,36,108,324

7 0

2 years ago

What is the answer to the problem i am very confused...

musickatia [10]

The time of takeoff of this hovercraft would be 0 seconds, as if you were starting a timer. So, if you plug in 0 for x (unit for seconds) in your equation, it will look like this:

h(0) = -3(0 - 3)² + 108
Parenthesis first
h(0) = -3(-3)² + 108
Exponents next
h(0) = -3(9) + 108
Multiplication
h(0) = -27 + 108
Combine like terms

h(0) = 81: The height of the hovercraft at the time of takeoff is 81 meters!
Hope this helps :)

7 0

2 years ago

Whats the answer to 1/2(5×-8)=-9

REY [17]

Answer:

I do not know if that x is a multiply sign or a variable so I'm going to answer both

If the x is a multiplication sign then the answer is -20 = -9

If the x is a variable then the answer is x = -2

Step-by-step explanation:

1/2(5 * -8) = -9

(1 * 5 * -8)/2 = -9

(5 * -8)/2 = -9

-40/2 = -9

-20 = -9

-20 ≠ -9

1/2(5x - 8) = -9

1(5x -8)/2 = -9

(5x - 8)/2 = -9

2((5x - 8)/2) = -9 * 2

2(5x - 8)/2 = -9 * 2

5x - 8 = -9 * 2

5x - 8 = -18

+8 +8

------------------

5x = -10

x = -10/5

x = -2

5 0

2 years ago

A²b-b²<br> if a = 3 and b = -4

LiRa [457]

The answer is -52

First you must substitute the variables

$(3^2)(-4)-(-4^2)$

Then you must simplify

$-52$

8 0

2 years ago

Will Mark Brainlest Help Please ,,,,​

Will Mark Brainlest Help Please ,,,,