3 years ago

How do I solve 8 - 4x + 5y when x = -2 and y = 6

Mathematics

1 answer:

Oliga [24]3 years ago

3 0

8 - 4(-2) + 5(6)
8 + 8 + 30
=46

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Pls help this is to confusing for me

zepelin [54]

Answer:

Reduction; scale factor of $\frac{1}{3}$ .

Step-by-step explanation:

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3 years ago

When Paign left middle school and entered high school, her class size increased by 225%. There were 56 students in her middle sc

Nastasia [14]

100% of her middle school class = 56
200% of her middle school class = 112 (56 x 2)
25% of her middle school class = 14 (56/4)
225% of her middle school class = 126 (112 + 14)

There are 126 students in her high school class.

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4 years ago

Find a counterexample to show that the statement is false. Assume all sets are subsets of a universal set U = {1, 2, 3, 4, 5}. (

natka813 [3]

Answer:

For subsets A={1,2},B={2,3},C={1,2 5} of U = {1, 2, 3, 4, 5}.

A ∪ (B − C) = (A ∪ B) − (A ∪ C) does not hold.

Step-By-Step Explanation:

U = {1, 2, 3, 4, 5}.

A={1,2}

B={2,3}

C={1,2 5}

For the Left Hand Side

B-C={3}

A ∪ (B − C)= {1,2} ∪ {3} ={1,2,3}

Likewise, the Right Hand Side:

(A ∪ B)={1,2,3}

(A ∪ C)={1,2,5}

(A ∪ B)- (A ∪ C)= {1,2,3}-{1,2,5}={3}

Since, {1,2,3} ≠ {3}, A ∪ (B − C) = (A ∪ B) − (A ∪ C) does not hold.

7 0

3 years ago

In ΔPQR, the measure of ∠R=90°, the measure of ∠P=53°, and QR = 17 feet. Find the length of PQ to the nearest tenth of a foot.

FromTheMoon [43]

Answer:

21.2863≈21.3 feet

Step-by-step explanation:

5 0

3 years ago

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Please help!! Find the domain and range of the following function ƒ(x) = 5|x - 2| + 4

blagie [28]

Answer:

There are no restrictions on x, so the domain is (-∞,∞)

When x = 2, 5|x - 2| = 0, so the range is [4,∞)

Step-by-step explanation:

6 0

4 years ago