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3 years ago

2 143 Test (CST): Foundations of Algebra

Mathematics

1 answer:

Tresset [83]3 years ago

7 0

Answer:

x= -13

Step-by-step explanation:

(-13) + 9 = -4

-13+9=-4

Hence Proved

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Ryan, a baker, measured the weights of cakes baked in each batch at his bakery and found that the mean weight of each cake is 50

denpristay [2]

Answer: Rejecting the mean weight of each cake as 500 gram when H subscript 0 equals 500

Step-by-step explanation:

Given that :

Null hypothesis : H0 =500

Alternative hypothesis : Ha < 500

Type 1 Error: Type 1 error simply occurs when we reject the Null hypothesis when the Null is true. Alternatively, type 11 error occurs when we fail to reject a false null hypothesis.

Hence, in the scenario above, a type 1 error will occur when we reject the mean weight as 500 even though the Null hypothesis is True.

6 0

4 years ago

Complete the solution of the equation. find the value of y when x = -13

tresset_1 [31]

If x = -13, just plug -13 in for x in the equation, simplify, isolate the variable, and solve.
-4x + 5y = 12
-4(-13) + 5y = 12
-4 • -13 = 52
52 + 5y = 12
12 - 52 = -40
5y = -40
-40 / 5 = -8
y = -8

So when x is -13, y is -8.

Check the solution:
-4x + 5y = 12
-4(-13) + 5(-8) = 12
52 + (-40) = 12
52 - 40 = 12
12 = 12
It works, so this is correct.

3 0

4 years ago

Read 2 more answers

The diameter of a circle has endpoints whosever coordinates are R(-2,2) and S(4,2). find the center of the circle

lisov135 [29]

Hello!

As you can see this line is horizontal. It is 6 units long. Therefore the center is three units in. Therefore the center of this circle is at (1,2).

I hope this helps!

3 0

3 years ago

Um negociante comprou 8 barricas de vinho todas com a mesma capacidade tendo pago R$7,00 o litro é vendido a R$9,00 ele ganhou a

Law Incorporation [45]

Answer:

each barrel has a capacity of 78,75 liters

Step-by-step explanation:

since the sold 8 barrels and assuming that each have the same capacity and are sold to the same price, the total amount he earned is

total earnings = number of barrels * number of liters/ barrel * earnings/liter

R$1,260,00 = 8 barrels * number of liters/ barrel * ( R$9,00- $7,00) /liter

number of liters/ barrel = R$1,260,00/(8 barrels*R$2,00 /liter ) = 78,75 liters/barrel

therefore each barrel has a capacity of 78,75 liters

5 0

3 years ago

TIMMMMMEDDDDD<br><br> Analyze the diagram below and complete the instructions that follow.

lukranit [14]

Angle OSP and angle QSR are congruent because angles that are complementary to the same angle are congruent.

Angle OSQ and angle PSR are congruent because they are both right angles, meaning they both are 90 degrees.

Final Answer: angle OSQ and PSR are congruent; angle OSP and QSR are congruent

6 0

4 years ago

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