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REY [17]
3 years ago
7

Find all real zeros of the function Y = -9x - 1.

Mathematics
2 answers:
Iteru [2.4K]3 years ago
5 0
The answer is d. 9.-1
MakcuM [25]3 years ago
3 0

Answer:

D. -9,-1

Step-by-step explanation:

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Plz do this my grade went down
Levart [38]
Look at picture for answer! :)

7 0
3 years ago
An isosceles triangle has two sides that are twice as long as the third side. If the perimeter is 60, what is the length of each
goblinko [34]
Since we have two sides that are twice as long as the third side, we can designate each side as follows:

First side of triangle: 2x
Second side of triangle: 2x
Third side of triangle: x

Since all three sides add up to equal 60, we can set up the following equation and solve for each side:

(x) + (2x) + (2x) = 60
5x = 60 --> x = 12

Side 1 length: 2x = 2(12) = 24
Side 2 length: 2x = 2(12) = 24
Side 3 length: x = 12
I hope this helps!!
8 0
3 years ago
Find the measure of the arc.<br> A<br> 146°<br> E<br> mBC =[ ? ]
Yakvenalex [24]

Answer:

124

Step-by-step explanation:

we are given 146 right away.

That little square means a 90 degree angle

146 + 90 = 236

360 - 236 = 124

(360 degrees is the sum of a complete circle.)

7 0
3 years ago
A chemist mixes 50 milliliters of a solution that is 20% acid with 75 milliliters of a solution that is 45% acid. How many milli
natka813 [3]
Answer:
81.25 mL
Why?
Total amount of millilitres: 125 mL
Let x represent the millilitres of acid.
Let a represent the amount of acid in the 50 mL solution.
Let b represent the amount of acid in the 75 mL solution.
This means that x = 125 - (a + b)
So, a = 0.2*50
a = 10
So, b = 0.45*75
b = 33.75
Plug it into our equation;
x = 125 - (a + b)
x = 125 - (10 + 33.75)
x = 125 - 43.75
x = 81.25
Therefore, 81.25 mL of the 125 mL mixture is acid.
Alternate solution:
Let x represent the millilitres of acid.
Let a represent the number of millilitres in the mixture.
Let b represent the percentage of acid in the mixture.
This means that x = b*a
So, a = 50 + 75
a = 125
So, b = 0.2 + 0.45
b = 0.65
Plug it into our equation;
x = b*a
x = 0.65*125
x = 81.25
Therefore, 81.25 mL of the 125 mL mixture is acid.

(Hope this helps)
4 0
3 years ago
2axy-4a^2xy^2+6a^3x^2
Vinvika [58]

Answer:

2ax(y-2ay^2+3a^2x)

Step-by-step explanation:

2axy-4a^2xy^2+6a^3x^2

Given data

we have the following expression

2axy-4a^2xy^2+6a^3x^2

let us factor this expression

we have

2ax(y-2ay^2+3a^2x)

The common factor is 2ax

And the factorized expression is 2ax(y-2ay^2+3a^2x)

6 0
3 years ago
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