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2 years ago

11

PLEASE HELP WITH MATH! 100 PTS

2 answers:

hammer [34]2 years ago

8 0

Answer:

66

Step-by-step explanation:

after math the expression is 16 + 49 = 66

timurjin [86]2 years ago

6 0

Answer:

1.) step No.3 x(2x-5) - (2x-5)

2.) 16 +28i-28i - 49i²

but we know i² = -1

the expression becomes

16 + 49

= 66

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AysviL [449]

Answer:

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Step-by-step explanation:

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2 years ago

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(x+5) (×+5)=49. I need to know what x is, how do I solve this?

Archy [21]

$(x+5)^2=49$
squaer root both sides
x+5=+/-7
minus 5 both sides
x=-5+/-7
x=-5+7=2
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2 years ago

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2 years ago

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Solve using the quadratic equation -4x² + 7x + 5 = 0

Luda [366]

Answer:

x=-0.544727

x=2.294727

Step-by-step explanation:

Given quadratic equation to solve:

-4x²+7x+5=0

To solve, use the quadratic formula

x= -b ± b² - 4ac / 2a

Substitute your values for a, b, & c and solve

x= -7 ± 7² - 4·(-4)·5 / 2·(-4)

x= -7 ± 49 - -80/-8

x= -7 ± 129/-8

Then, reduce the problem

x= -7/-8 ± 129/-8

x=-0.544727

x=2.294727

4 0

1 year ago

Which expression represents the measure of segment rs? 7x – 3 7x 5 x 5 x – 3

inn [45]

Answer:

the answer is RS=x+5

if I am right mark it as brianliest

3 0

1 year ago