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3 years ago

Determine weather either of the points (-1,-5) and (0,-2) is a solution to the given system of equation

Mathematics

1 answer:

Anika [276]3 years ago

4 0

Only the first one works
y = 3(-1)-2 = -5
y = -(0) -6 = -6 not -2

This is a substitution problem...

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Dustin has a collenction of quarters and pennies. The total value is $4.65. Th

Hitman42 [59]

Answer:

Dustin has 18 quarters and 15 pennies.

Step By Step Solution:

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6 0

2 years ago

16. Solve for "x". a. 6 b. 100 c. 36

erastovalidia [21]

Answer:

A. 6

Step-by-step explanation:

Using the Pythagorean theorem which states that: Hypotenus² = Opposite² + Adjacent²

Where: hypotenus = 10, opposite = x, adjacent = 8

So:

${10}^{2} = {x}^{2} + {8}^{2}$

Solving for x

$100 = {x}^{2} + 64$

Collect like terms to make x the subject of formula

$100 - 64 = {x}^{2} →36 = {x}^{2}$

$36 = {x}^{2} ⟹ {x}^{2} = 36$

square root both sides of the equation to find the value of x

$\sqrt{ {x}^{2} } = \sqrt{36} →x = 6$

Therefore: Option A is correct

5 0

1 year ago

Allie noticed that to get her test grade, she could take Valerie's grade, multiply it by 2 and subtract 15. If Valerie's test gr

kolbaska11 [484]

Answer is c) 2x - 15 because x is Valerie's grade

Allie's grade is taking Valerie's grade, multiply it by 2 and subtract 15

4 0

3 years ago

PLEASE PLEASE HELP 50 POINTS

Crank

Answer:

The claim is " oreos are the most popular cookie at my house". The evidence is because you said that " oreos run out twice as fast as snickerdoodles." The reasoning is because my family eats twice as many oreos than snickerdoodles.

8 0

3 years ago

Write the expression as one involving only sin x and cos x. sin 2x + cos x

AfilCa [17]

Answer:

sin 2x + cos x = 2 sin x cos x + cos x = (2 sin x + 1)cos x

Step-by-step explanation:

Given the expression: sin 2x + cos x,

then we can use the formula: sin 2x = 2 sin x cos x, which gives:

sin 2x + cos x = 2 sin x cos x + cos x = (2 sin x + 1)cos x

So there you have two expressions in terms of sin x and cos x, as requested. :D

6 0

1 year ago