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3 years ago

23 increased by twice Janelle's savings Use the variable j to represent Janelle's savings.

Mathematics

1 answer:

beks73 [17]3 years ago

3 0

Answer:

2x+23

Step-by-step explanation:

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What is the coefficient of x term in (2x-5)^3

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I don’t know I just need the 4th thing blood

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4 years ago

If a certain cannon is fired from a height of 8.8 meters above the ground, at a certain angle, the height of the cannonball ab

Dennis_Churaev [7]

Answer:

It would take approximately 6.50 second for the cannonball to strike the ground.

Step-by-step explanation:

Consider the provided function.

$h(t)=-4.9t^2+30.5t+8.8$

We need to find the time takes for the cannonball to strike the ground.

Substitute h(t) = 0 in above function.

$-4.9t^2+30.5t+8.8=0$

Multiply both sides by 10.

$-49t^2+305t+88=0$

For a quadratic equation of the form $ax^2+bx+c=0$ the solutions are: $x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Substitute a = -49, b = 305 and c=88

$t=\frac{-305+\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}=-\frac{-305+\sqrt{110273}}{98}\\t = \frac{-305-\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}= \frac{305+\sqrt{110273}}{98}$

Ignore the negative value of t as time can't be a negative number.

Thus,

$t=\frac{305+\sqrt{110273}}{98}\approx6.50$

Hence, it would take approximately 6.50 second for the cannonball to strike the ground.

6 0

3 years ago

Alana runs a game at the fair and needs to count the people who play. At the beginning of her shift 56 people had played. This t

Bingel [31]

Answer:

y=14x+56

Step-by-step explanation:

Question says to find the equation in slope intercept form that means we have to use y=mx+b form.

Where b is the initial value or you can say y-value when x=0

Given that at shift x=0, number of people y=56

so that means b=56

now find the difference between consecuitve value of y

70-56=14

84-70=14

98-84=14

We are getting constant difference of 14 so that mean slope m=14

now plug values of m and b into y=mx+b

Then final answer will be y=14x+56

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4 years ago

Read 2 more answers

Qual o valor do algarismo 5 nao em número 65.000.000

Stella [2.4K]

I don't know Spanish amigo

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4 years ago

Julia writes 2 fractions with the same denominator that have numerators 5 and 7. What could the denominator be if the sum is les

Gre4nikov [31]

Less than 1: 5/x || x = 6 or more
Equal to 1: 5/5 || a fraction is the same as a division problem, and 5 <span>÷ 5 = 1
Greater than 1: 5/y || y = 5 or less

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3 years ago