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Olenka [21]
2 years ago
12

A jar of the chemical contains

Mathematics
1 answer:
Leya [2.2K]2 years ago
6 0

Answer: The answer is 144 grams of zinc

Step-by-step explanation:

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Pls asap now<br> late thank you
allsm [11]

Answer:

using Pythagoras theorem

Step-by-step explanation:

it's option c

8 0
2 years ago
Read 2 more answers
Given that the value of b can never be equal to -1, determine if the equations are intersecting, parallel, or coincident.
eimsori [14]
<h3>Answer: A) intersecting</h3>

-----------------------------------------------

Work Shown:

Solve the first equation for y

x+y = ab

y = -x+ab

y = -1x + ab

slope = -1, y intercept = ab

-----------

Solve for y in the second equation

bx - y = a

bx - y - a = 0

bx-a = y

y = bx - a

Slope = b, y intercept = -a

-----------

The first equation has a slope of -1. The second equation has a slope of b.

Since b cannot equal -1, this means the two equations have different slopes. It is impossible for these two lines to be parallel, because parallel lines have equal slopes. The different slope values tell us the lines cross at exactly one point.

7 0
3 years ago
1.
ASHA 777 [7]

Answer:

Step-by-step explanation:

Vertex A of the triangle ABC when rotated by 90° counterclockwise about the origin,

Rule to be followed,

A(x, y) → P(-y, x)

Therefore, A(1, 1) → P(-1, 1)

Similarly, B(3, 2) → Q(-2, 3)

C(2, 5) → R(-5, 2)

Triangle given in second quadrant will be the triangle PQR.

If the point P of triangle PQR is reflected across a line y = x,

Rule to be followed,

P(x, y) → X(y, x)

P(-1, 1) → X(1, -1)

Similarly, Q(-2, 3) → Y(3, -2)

R(-5, 2) → Z(2, -5)

Therefore, triangle given in fourth quadrant is triangle XYZ.

6 0
3 years ago
Whats the slope of this line?
zhannawk [14.2K]
Slope = (y2 - y1)/(x2 - x1) = (10 - 70)/(5 - (-15)) = -60/(5 + 15) = -60/20 = -3
6 0
3 years ago
-y+31-5y-15 need help with this
iogann1982 [59]
-2 x (3y - 8) would be the answer

4 0
2 years ago
Read 2 more answers
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