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2 years ago

Answer please I’m like really bad in math hahaha

Mathematics

2 answers:

Naddik [55]2 years ago

7 0

Answer:

2nd

When you flip the x-axis the y-axis becomes negative and the x-axis doesn't change

Step-by-step explanation:

NeTakaya2 years ago

5 0

Answer: I believe the answer is the second one.

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A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th

Bond [772]

Answer:

The time that the rocket will hit the ground will be:

x = 17.40 seconds

Step-by-step explanation:

Given the expression

$f\left(x\right)\:=-16x^2+272x+110$

Here:

x represents the time in seconds

y represents the height of the rocket

We know that when the rocket will hit the ground, the height will get y = 0

i.e.

$0\:=-16x^2+272x+110$

solving for x to determine the time that the rocket takes when it will hit the ground.

$-16x^2+272x+110=0$

subtract 110 from both sides

$-16x^2+272x+110-110=0-110$

$-16x^2+272x=-110$

Divide both sides by -16

$\frac{-16x^2+272x}{-16}=\frac{-110}{-16}$

$x^2-17x=\frac{55}{8}$

$\mathrm{Add\:}\left(-\frac{17}{2}\right)^2\mathrm{\:to\:both\:sides}$

$x^2-17x+\left(-\frac{17}{2}\right)^2=\frac{55}{8}+\left(-\frac{17}{2}\right)^2$

$x^2-17x+\left(-\frac{17}{2}\right)^2=\frac{633}{8}$

$\left(x-\frac{17}{2}\right)^2=\frac{633}{8}$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solving

$x-\frac{17}{2}=\sqrt{\frac{633}{8}}$

$x=\frac{\sqrt{1266}}{4}+\frac{17}{2}$

x = 17.40 seconds

also solving

$x-\frac{17}{2}=-\sqrt{\frac{633}{8}}$

$x=-\frac{\sqrt{1266}}{4}+\frac{17}{2}$

x = -0.40 seconds

As time can not be negative.

Thus, the value of x = 17.40 seconds

Therefore, the time that the rocket will hit the ground will be:

x = 17.40 seconds

4 0

3 years ago

Farmer Joe sprays his crops every harvesting season. Each season he uses 230 lbs of chemicals on his farm. About 5% of the chemi

joja [24]

Answer:

138

Step-by-step explanation:

after one season.... 0,05 × 230 = 11,5

after 12 seasons ... 11,5 × 12 = 138

3 0

3 years ago

The graph shows how the number of flowers Gavin can have in his garden is related to the number of seed packets he purchases.

Agata [3.3K]

Answer:

A: 20:10=2:1

B: y=2x

c he can have 2 flowers per seed packet

Step-by-step explanation:

A: When you look at the coordinates of the graph, you can see the proportionallty at point (10/20)

B: the equoation is proportionalty multplied by x + y axis section (in this case 0)

C: The proportionality explains the relationship:

x represents the flowers

y represents the seed packets

3 0

2 years ago

each of equal sides of an isosceles triangle is 4cm greater than its height .If the base of triangle is 24 cm ,calculate the per

Montano1993 [528]

<h3>Answer:-</h3>

192 cm²

<h3>Step by step explanation :-</h3>

Let us take the height be x , then its side = x + 4. Now half of base will be 12 cm .

According to Pythagoras Theorem :-

=> base² + perpendicular ² = hypontenuse ²

=> 12² + x² = (x+4)²

=> 144 + x² = x² + 16 + 8x

=> 8x = 144-16

=> 8x = 128

=> x = 128/8

=> x = 16 cm .

Hence the height of ∆ is 16 cm .So the area will be half the product of base and altitude.

= 1/2 * 16 cm * 24cm .

= 192 cm²

<h3>★ Hence the area of the triangle is 192 cm² .</h3>

8 0

2 years ago

summer break is almost around the corner. You and your family call an uber and need to know how many miles you can be driven. Ub

Alex777 [14]

Answer:

You can go 26 miles

Step-by-step explanation:

15 - 1 = 14

14 ÷ 0.52 = 26.92

4 0

2 years ago