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2 years ago

Can someone help me ?

Mathematics

2 answers:

prisoha [69]2 years ago

7 0

I’m pretty sure there are infinite solutions as the system of equations are equivalent to each other.

AURORKA [14]2 years ago

3 0

Answer: there are infinte solutions because it a coincident

Step-by-step explanation: please givebrainliest

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Simplify. 3 1 8 8 OA) 2 1 B) 2 C) OD) 8

lawyer [7]

Hello Love!! ♡　

»»————- $\red{Answer\:}$ ————-««

$\Huge{\boxed{\frac{1}{4}}}$

☆♬○♩●♪✧♩ $\bold{EXPLANATION\;}$ ♩✧♪●♩○♬☆

$\mathfrak{apply~the~fraction~rule~:}~\frac{a}{c}~ -~\frac{b}{c} = \frac{a~-~b}{c}$

$= \frac{3-1}{8}$

$\mathfrak{subtract~the~numbers~:}~ 3 - 1=2$

$=\frac{2}{8}$

$\mathfrak{cancel~the~numbers~:}~\frac{2}{8} = \frac{1}{4}$

$=\frac{1}{4}$

°:⋆ₓₒ　Hope It Helps. . .　ₓₒ⋆:°

$Answer~:$

$\mathfrak{Jace}$

6 0

2 years ago

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Jill ran X Miles yesterday, today she ran 2 miles more than yesterday , with a total greater of 6 miles . Circle the numbers bel

Eddi Din [679]

Five, Six, Seven, and eight

8 0

2 years ago

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Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon

Lisa [10]

Answer:

2.62 seconds

Step-by-step explanation:

Let

t ----> the time in seconds

h(t) ----> he height of the ball, in feet

we have

$h(t)=-16t^2+40t+5$

we know that

When the ball hits the ground, the height is equal to zero

$-16t^2+40t+5=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$

is equal to

$t=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^2+40t+5=0$

$a=-16\\b=40\\c=5$

substitute in the formula

$t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}$

$t=\frac{-40\pm\sqrt{1,920}} {-32}$

$t=\frac{-40+\sqrt{1,920}} {-32}=-0.12\ sec$

$t=\frac{-40-\sqrt{1,920}} {-32}=2.62\ sec$

therefore

The solution is t=2.62 seconds

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2 years ago

What is the solution of the equation? -39.75 = 7.5m

kolezko [41]

Answer:

m = -5.3

Step-by-step explanation:

-39.75 = 7.5m

Divide both sides by 7.5 to get m alone

-39.75/7.5 = 7.5m/7.5

-5.3 = m

Hope this helps:)

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3 years ago

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PLS ANSWER QUICK

Alex17521 [72]

Answer & Step-by-step explanation:

First, we will multiply 5 by 28 to find out the total number of ages in the room.

5 * 28 = 140

Now, we will multiply 6 by 29 to find out the total number of ages in the room after the new person comes in.

6 * 29 = 174

Now, in order for us to find the age of the new person, then we will subtract 140 from 174.

174 - 140 = 34

So, the person that entered the room is 34 years old.

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2 years ago

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