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3 years ago

Please help me with maths

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

6 0

Answer:

Given expression:

xy + 3x + 8y + 24

You may factor this as follows:

xy + 8y + 3x + 24 =
y(x + 8) + 3(x + 8) =
(x + 8)(y + 3)

We have the product of x + 8 and y + 3 and we can state that:

Emily's age = x + 8
Ros's age = y + 3
(or vise versa)

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A 90% confidence interval for the average weight (in pounds) of Americans was found to be (185, 210). The point estimate for thi

Lynna [10]

Answer:

B. 12.5

Step-by-step explanation:

We have the lowe confidence interval = 185

The upper confidence interval = 210

Mean of X = (lower confidence + upper confidence interval)/2

Mean of X = 185 + 210/2

= 197.5

The margin of error = the upper confidence interval - mean of X

= 210-197.5

= 12.5

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4 years ago

Which statements about the graph of the function f(x) = –x2 – 4x + 2 are true? Check all that apply.

nikitadnepr [17]

True tRUE TRUE FALSE FALSE MARK ME AS BRAINIEST

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4 years ago

What are the values of x and y

AnnyKZ [126]

Answer:

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3 years ago

Read 2 more answers

After obtaining a warrant, the police attached GPS tracking device to the car of a murder suspect. Suppose the car was located a

AURORKA [14]

Answer:

Part a) The coordinates of the suspect's car at its final destination are (4,4)

Part b) The distance traveled by the suspect was 10 miles

Part c) $d=5.66\ mi$

Step-by-step explanation:

The correct question in the attached figure

Part a) What are the coordinates of the suspect's car at its final destination?

we know that

The original position is the origin of a Cartesian coordinate system (0,0)

1) The suspect's car was tracked going 5 mi due east

That means----> 5 mi at right

the new coordinates are (5,0)

2) The suspect's car was tracked going 4 mi due north

That means----> 4 mi up

the new coordinates are (5,4)

3) The suspect's car was tracked going 1 mi due west

That means----> 1 mi at left

the new coordinates are (4,4)

therefore

The coordinates of the suspect's car at its final destination are (4,4)

Part b) What was the distance traveled by the suspect?

The distance traveled is

5 mi due east + 4 mi due north + 1 mi due west

$5+4+1=10\ mi$

therefore

The distance traveled by the suspect was 10 miles

Part c) What is the distance as the crow flies between the original position and the final position of the suspect's car?

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

Remember that

The original position was (0,0) and the final position was (4,4)

substitute in the formula

$d=\sqrt{(4-0)^{2}+(4-0)^{2}}$

$d=\sqrt{(4)^{2}+(4)^{2}}$

$d=\sqrt{32}\ mi$

$d=5.66\ mi$

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3 years ago

WILL GIVE BRAINLIEST!!!!

olga2289 [7]

Answer: A
Explanation: It’s A because 28,500 - 23,700 = 4,800. 4,800 / 3 = 1,600. 23,700 - 4,800 = 18,900 - 1,600 = $17,300. Hope this helps :)

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3 years ago