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charle [14.2K]
2 years ago
11

Help pls asap!!! i will give brainliest!

Mathematics
2 answers:
Anna11 [10]2 years ago
4 0

Answer:

y = -5x + 4 is the equation

Marat540 [252]2 years ago
3 0

Answer:

y = -5x + 4

Step-by-step explanation:

slope = -5x

y-intercept = 4

y = mx + b --> slope intercept formula

y = -5x + 4 --> final solution

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221,000,000,000,000,000,000 in scientific notation
larisa [96]
2.21 x 10^17 and the answer is 2.21e+17
8 0
2 years ago
Zachary sold 1/2 of a 40-acre lot. He then sold 3/5 of the remaining lot. What fraction of the land did he sell in all? (Write t
Mazyrski [523]
4/5 acres of the land were sold.
40* 1/2 = 20
20* 3/5 = 12
12+20= 32
32/40 = 4/5 simplified
4 0
2 years ago
geomatry) Pleasee help I'll give brainest and thanks :)Also please don't answer if you don't know!! Thanks in advance
Iteru [2.4K]

Answer:

x = 50°

Step-by-step explanation:

sum of all angles of a quadrilateral is 360°

so, the other unknown angle be y

=》y + 40° + 110° + 80° = 360°

=》y + 230° = 360°

=》y = 360° - 230° = 130°

and the unknown angle + x = 180°

( because they for linear pair )

so, x + y = 180°

x + 130° = 180°

x = 180° - 130° = 50°

hence, x = 50°

8 0
3 years ago
Is this a right triangle?
I am Lyosha [343]

Answer:

Yes.

Step-by-step explanation:

A right triangle, by definition, must have at a 90° angle, typically denoted by a square. In the given picture, there is a square within the triangle where an angle is, denoting that it is a right angle. ∴ by definition given above, this is a right triangle.

~

5 0
2 years ago
Read 2 more answers
A 152 cm tall barrel has a circumference of 56.52.
kirill [66]

Answer:

V = 38659.68 cm^3

Step-by-step explanation:

If we pretend A barrel is a cylinder we use V=πr^2h for the volume.  We know h, but we need to find r

The question tells us the circumference, well how do we find circumference? C = 2πr, so we can use this to find r.

C = 2πr

56.52 = 2 * 3.14 * r Here divide both sides by 2*3.14

56.52/(2*3.14) = r

9 cm = r

Now we can just plug into the volume.

V=πr^2h

V = 3.14 * 9^2 * 152

V = 38659.68 cm^3

I feel I should mention this is all true if the circumference is in centimeters, since the question didn't specify.  

6 0
3 years ago
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