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4 years ago

PLEASE HELPP IT IS SUPER EASY

Mathematics

2 answers:

Rashid [163]4 years ago

3 0

Q- 24.9

R- 7.3

S- -41.5

T- 6.3

Hope this helps❤️

Sergeu [11.5K]4 years ago

3 0

Answer:

Q: 24.9

R: 7.3

S: -41.5

T: 6.3

Step-by-step explanation:

Just substitute and multiply.

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Using the quadratic formula to solve 11x2 – 4x = 1, what are the values of x?

sergiy2304 [10]

<h2>Hello!</h2>

The answer is:

$x1=0.53\\x2=-0.17$

The quadratic formula is:

$x=\frac{-b+-\sqrt{b^{2}-4*a*c } }{2*a}$

We have that:

$a=11\\b=-4\\c=-1$

By substituting we have:

$x=\frac{4+-\sqrt{-4^{2}-4*11*-1 } }{2*11}=\frac{4+-\sqrt{16+44} }{22}=\frac{4+-\sqrt{60} }{22}=\frac{4+-(7.75)}{22}$

$x1=\frac{4+7.75}{22}=0.53\\\\x2=\frac{4-7.75}{22} =-0.17$

Have a nice day!

7 0

3 years ago

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A children's inflatable pool takes 17 minutes to fill with an electric air pump. It takes 53 minutes to let the air out of the p

Molodets [167]

Answer:

less than 17 minutes

Step-by-step explanation:

4 0

3 years ago

How do I find x and y

boyakko [2]

X = 10

to find x -
7x = 8x - 10

180 - 70 = 110
110 = 6y + 20

y = 15

4 0

2 years ago

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Find the slope of the line through each pair of points(-13,-18),(0.-17)

Jet001 [13]

The slope formula is

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For the first one it would be:

-17-(-18)/0-(-13)=1/13

m=1/13

Second one:

m=−16−−9/−17−−18= -7/1

m=-7

For the there one:

Slope =−12−−13/6−−1=1/7

m=1/7

I hope it was helpful. If you have any questions let me know.

3 0

3 years ago

Elijah was analyzing the trajectory made after throwing a football. His coach was able to measure that his throw reached a maxim

ziro4ka [17]

Answer:

Step-by-step explanation:

Given that Elijah threw a ball from a height of 4 feet. The ball reached maximum height of 16 feet after 2seconds

Let vertical component of his speed be v

When it reaches maximum height its velocity becomes 0

Hence

height reached by the ball = $h=vt-\frac{gt^2}{2}$

When h=12(16-4) we get g=gravity =32

Hence 12 =2v-16(4)

v=38

Hence $h=38t-\frac{32t^2}{2}$

where h is calculated from the height of hand i.e. 4 feet

When it touches the ground h =-4

When it starts falling then distance travelled = 16 feet

Initial velocity =0 Accn due to gracity =32 feet

Using these we can write

$16=0+\frac{32t^2}{2}\\ t=1$

So after 3 minutes from start the ball would reach the ground

8 0

3 years ago