3 years ago

- Algebraic Reasoning FWISD

Mathematics

1 answer:

GaryK [48]3 years ago

5 0

The answer is D. -7

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Triple n, then multiply 7 by the result

likoan [24]

Answer:

21n

Step-by-step explanation:

1. triple n = 3(n)

3. multiply 7 = 7(3n) = 21n

4 0

4 years ago

One satellite is scheduled to be launched from Cape Canaveral in Florida, and another launching is scheduled for Vandenberg Air

NeTakaya

Answer: $P\left ( A\right )=0.45$

$P\left ( B\right )=0.32$

Step-by-step explanation:

Given

$P\left ( A\cup B\right )=0.626$

$P\left ( A\cap B\right )=0.144$

and we know

$P\left ( A\cup B\right )=P\left ( A\right )+P\left ( B\right )-P\left ( A\cap B\right )$

$0.626=P\left ( A\right )+P\left ( B\right )-0.144$

$0.77=P\left ( A\right )+P\left ( B\right )$ -------1

as it is given

A and B are independent therefore

$P\left ( A\cap B\right )=P\left ( A\right )\cdot P\left ( B\right )$

$0.144=P\left ( A\right )\cdot P\left ( B\right )$

Substitute value of $P\left ( B\right )$ in 1

$0.77=P\left ( A\right )+\frac{0.144}{P\left ( A\right )}$

on solving $P\left ( A\right )=0.45$

$P\left ( B\right )=0.32$

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3 years ago

The matrix below represents the solution to a system of equations.

konstantin123 [22]

Answer: C

Step-by-step explanation:

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4 years ago

1.) 3/4 (x+2)=-1 2.) x/2 - 3 = 4 3/4x - 3/4 = 0

alex41 [277]

Answers
1. X= -10/3
2. X= 14
3. true

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3 years ago

What is the total cost of a sweatshirt if the regular price is $42 and the sales tax is 5.75%

makvit [3.9K]

X/42=0.0575
X=0.0575*42
X=2.415
42+2.415=$44.415
Hope this helps!

3 0

4 years ago