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3 years ago

Pls helpp ..................

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

8 0

Answer:

The answer is B

Step-by-step explanation:

Because x -intercept is -2 y-intercept is 4

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What is your pay if you worked 86.37 hrs at 9.10 an hour

masya89 [10]

Just multiply the two

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3 years ago

If A=p+prt, than t equalls?

ella [17]

Answer:

$\boxed{t=\frac{A-p}{pr}}$

Step-by-step explanation:

$A=p+prt$

Subtract p on both sides.

$A-p=p+prt-p$

$A-p=prt$

Divide both sides by pr.

$\displaystyle \frac{A-p}{pr} =\frac{prt}{pr}$

$\displaystyle{\frac{A-p}{pr} =t}$

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3 years ago

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A water balloon is 5 feet above the ground when Sally launches it into the air. Use the quadratic equation 0 = -t^2 + 4t + 5 to

rodikova [14]

Answer:

$t=5\ sec$

Step-by-step explanation:

we have

$-t^{2} +4t+5=0$

Solve the quadratic equation to find the zero's or x-intercepts

Remember that

The x-intercepts are the values of x when the value of y is equal to zero ( water balloon reach the ground)

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-t^{2} +4t+5=0$

$a=-1\\b=4\\c=5$

substitute in the formula

$t=\frac{-4(+/-)\sqrt{4^{2}-4(-1)(5)}} {2(-1)}$

$t=\frac{-4(+/-)\sqrt{36}} {-2}$

$t=\frac{-4(+/-)6} {-2}$

$t=\frac{-4(+)6} {-2}=-1$

$t=\frac{-4(-)6} {-2}=5$

therefore

the solution is $t=5\ sec$

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3 years ago

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a contractor charges $1200 for 100 square feet of roofing installed. at this rate how much does it to have 1,100 square feet ins

FrozenT [24]

Answer:

$13,200

Step-by-step explanation:

if 100 square feet = $1,200

1,100 square feet = $13,200

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3 years ago

How do you solve this problem -g+2(3 g)=-4(g+ 1)?

alexgriva [62]

$-g+2(3 g)=-4(g+ 1)?\\-g + 6g = -4g - 4\\5g = -4g - 4\\9g = -4\\\\g = -\frac{4}{9}$

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3 years ago