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Rashid [163]
2 years ago
14

(No links please) I’ll mark Brainlyst

Mathematics
1 answer:
statuscvo [17]2 years ago
3 0
18 bags of sand will be needed
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Find 2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2.<br><br> Is -3 the correct answer?
Ket [755]
We're given the algebraic expression 2x^2 - 2z^4 + y^2 - x^2 + z^4

By hypothesis, x = -4, y = 3 and z = 2

Let's replace each letter by its given value:

2x^2 - 2z^4 + y^2 - x^2 + z^4
2(-4)^2 - 2(2)^4 + (3)^2 - (-4)^2 + (2)^4
(2*16) - 2*16 + 9 - 16 + 16
32 - 32 + 9 - 16 + 16
9

So wrong. The correct answer is not -3, but 9.

Hope this helps! :D
6 0
3 years ago
The angle measures of triangle QRS are given:
Trava [24]

Answer:

x = 15°

Step-by-step explanation:

(5x-15) + 75 + 3x = 180

8x + 60 = 180

8x = 120

x = 15°

7 0
3 years ago
Hello, I know this isn’t a homework question but I am not able to skip this activity right here and I can’t seem to find out why
tangare [24]

Answer:

This is more of a computer kind of thing, but try clicking the next thing at the bottom.

Step-by-step explanation:

5 0
3 years ago
Factor tree of 74 and 48​
larisa [96]
Answer: Here is your answer. Mark as brainlist please :)

3 0
2 years ago
Can someone tell me the slope ?
borishaifa [10]

Answer:

slope = 4

Step-by-step explanation:

We can find the slope of a line when knowing 2 points by using the slope formula, \frac{y_2 - y_1}{x_2 - x_1}. x_1 and y_1 represent the x and y values of the first point, respectively. x_2 and y_2 represent the x and y values of the second point, respectively.

The two points we have are (2,8) and (0,0). So, in this case, x_1 = 2, y_1 = 8, x_2 = 0, and y_2 = 0. Let's substitute those values into the formula and solve to get the slope:

m  = \frac{0-8}{0-2}

\frac{-8}{-2}

4

So, the slope is 4.

3 0
3 years ago
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