MATHEMATICS HIGH SCHOOL

Please :’) help me out

Answers

Answer 1

Answer:

Answer:

10 units

Step-by-step explanation:

In this equation the parenthesis act as a multiplier, so you take w(2w + 2) = 40.

the variable w represents the number 1, so you multiply the numbers within the parenthesis.

w x 2w = 2w

w x 2 = 2w

so now you have 2w + 2w = 40

add the w's for 4w = 40

Now you need to get rid of the number next to the W.

divide the four from the W and divide the 40 as well

4w/4= w

40/4 = 10

W=10

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50 points! math help! will mark brainliestWhich equation represents a direct variation between x and y?Select one:A. y − 2= 3xB. 2y −4x= 0C. 2y +2 = 6xD. 2x +3y = 8Let y vary directly with x, and let the point (4, 8) satisfy the relationship between x and y. Which equation represents the relationship?

What is the graph of the system y= -2x + 3 and 2x + 4y= -8

Answers

y = -2x + 3
2x + 4y = -8

y = -2x + 3
y + 2x = 3

2x + 4y = -8

Subtract those equations
3y = -11
y = -11/3

y = -2x +3
-11/3 = -2x + 3
2x = 3 + 11/3
x = 3/2 + 11/6
x = 20/6
x = 10/3

therefore above lines will intersect in this ( 10/3 , -11/3 ) coordinates

Answer: C (third)

Step-by-step explanation:

Is -31/8 less than, greater than, or equal to -3.92

Answers

-31/8 equalss -3.88 so -3.88 > -3.92

Final answer:

-31/8 converts to -3.875 in decimal form. In the case of negative numbers, 'less than' refers to numbers further from zero. Therefore, -3.92 is 'less than' -31/8.

Explanation:

To answer this question, we first need to convert -31/8 into decimal form. Doing this, we get -3.875.

Now we can compare -3.875 and -3.92. When it comes to negative numbers, a number is 'less' if it is further from zero. In this case, -3.92 is further from zero than -3.875.

So, -31/8 is greater than -3.92. In other words, -3.92 is 'less than' -31/8.

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What multiplies to 378 and adds to -51

Answers

Your answer would be -9 & -42.

Here's why ...
(-9)*(-42) A negative times a negative equals a positive (378).
Now, -9-42=-51 & you add these because you have two negatives.

Hope this makes sense & helps you ! (:

7.7z-2=6.7z-2 the solution is

Answers

I hope this helps you

7,7z-6,7z=-2+2

1z=0

z=0

a car is designed to last an average of 12 years with a standard deviation of 0.8 years. what is the probability that a car will last less than 10 years?

Answers

The probability that the car will last less than 10 years would be .0062. With the given data (M = 12, SD = .8), i computed the z-score and looked it up on the z table. The answer yields .0062 or 0.62%. Thus, the probability is very little.

Answer: 0.621%

Step-by-step explanation:

Assume that the sales of a computer retail store are approximated by a linear function. Sales were $990,000 in 1983 and $2,830,000 in 1988. Let x=0 represent 1983. Find the equation given yearly sales. Estimate sales in 1991.

Answers

To find the equation for the linear function representing the sales, we need to find the slope (m) and the y-intercept (b).

The slope, m, can be calculated using the formula: m $= (y2 - y1) / (x2 - x1),$ where (x1, y1) and (x2, y2) represent points on the line. Using the given data, $(1983, $990,000)$ and $(1988, $2,830,000),$ we have: m = $(2,830,000 - 990,000) / (1988 - 1983) = 568,000$ Substituting one of the points, say (1983, $990,000), into the equation y = mx + b, we can solve for b: $990,000 = 568,000 * 0 + b b = 990,000$

Therefore, the equation representing the sales is: y $= 568,000x + 990,000$ . To estimate the sales in 1991, we substitute x = 8 (since 1991 corresponds to x = 8) into the equation: y $= 568,000 * 8 + 990,000 y = 4,544,000 + 990,000 y ≈ $5,534,000.$ Therefore, the estimated sales for 1991 would be approximately $5,534,000.

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The answer is $3,934,000

See attached calcs