3 years ago

PLEASEE HELPP MEE IN MATH!!!

Mathematics

2 answers:

irina1246 [14]3 years ago

6 0

Answer:

A. 62

Step-by-step explanation:

iren [92.7K]3 years ago

3 0

Answer:

The answer is c

Step-by-step explanation:

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3x-5y=10 -3x-4y=35 Find the Solution set . Solve the system using addition method ?

trapecia [35]

Hello:
3x-5y=10 .... (1)
-3x-4y=35 ..... (2)
using addition method (1)+(2) :-9y=45 y=-6
subst in (1) : 3x-5(-6)=10
3x=40
x=40/3

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2 years ago

Find the value of x that makes A || B.

vladimir1956 [14]

Answer:

x=20

Step-by-step explanation:

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2x-10=30

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2 years ago

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Tony plans to run a 5,000-meter fun run at a constant rate of 250 meters per minute. He uses function f to model his distance fr

kramer

Answer:

Option A.

Step-by-step explanation:

Based on the information provided on the question

the function used to model Tony's run is:

f(x) = -250*x + 5000

This means that after x = 20 minutes, Tony will arrive to the finish line

f(20) = -250*(20) + 5000 = -5000 + 5000 = 0

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Option A.

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3 years ago

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Solve the given equation by completing the square.

Dmitriy789 [7]

Answer:

a = -4, b = 3 and c = 6 (OR)

a = -4, b = -3 and c = 6

Step-by-step explanation:

$x^{2} +8x = 38$

Add 16 to both sides.

$x^{2} +8x+16 = 38 + 16$

$(x+4)^{2} =54$

$x + 4 = \sqrt{54}$ or $x + 4 = -\sqrt{54}$

$x+4=3\sqrt{6}$ or $x+4=-3\sqrt{6}$

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Therefore, a = -4, b = 3 and c = 6 (OR)

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3 years ago

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