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2 years ago

14

Kelvin leaves home and walks 5 blocks east and 10 blocks north to get to the ball park. How far is the ball park from Kelvin’s h

ome if he were to take a direct path? If necessary, round to the nearest tenth.

1 answer:

kifflom [539]2 years ago

5 0

Answer:

11.2

Step-by-step explanation:

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What is 8x -5+2 x simplified

IgorC [24]

8x -5+2 x

8x+2x-5 ( combine like terms)

answer:

10x-5 or -5+10x

8 0

3 years ago

3x-9x+6=20-3x+4x Please answer.

fomenos

I gotchu.
<span>3x-9x+6=20-3x+4x
Combine like terms.
-6x+6=20+x
Bring x over to the left side.
-x -x
-7x+6=20
bring 6 to the right side.
-6 -6
-7x=14
Divide -7 on both sides to isolate x.
x= -2

CHECK
</span><span>3x-9x+6=20-3x+4x
-6(-2)+6=20+(-2)
18=18
ANSWER: x= -2</span>

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3 years ago

If a regular decagon with 6 cm sides has an area of 276.99 cm squared, what is the length of the apothem to the nearest hundredt

bezimeni [28]

According to the attached formula:
apothem = side length / 2 * tan (180/number of sides)
apothem = 6 / 2 * tan (180/10)
apothem = 6 / 2 * 0.32492
apothem = <span> <span> <span> 9.23 cm
</span></span></span>

<span><span /></span>

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3 years ago

Rectangle WXYZ with y axis<br>

Gre4nikov [31]

Answer:

I dont understand comment on this and i can help you out

Step-by-step explanation:

:)

7 0

3 years ago

Read 2 more answers

Solve the inequality 4t^2 ≤ 9t-2 please show steps and interval notation. thank you!

Misha Larkins [42]

Answer:

[0.25, 2]

Step-by-step explanation:

We have

4t² ≤ 9t-2

subtract 9t-2 from both sides to make this a quadratic

4t²-9t+2 ≤ 0

To solve this, we can solve for 4t²-9t+2=0 and do some guess and check to find which values result in the function being less than 0.

4t²-9t+2=0

We can see that -8 and -1 add up to -9, the coefficient of t, and 4 (the coefficient of t²) and 2 multiply to 8, which is also equal to -8 * -1. Therefore, we can write this as

4t²-8t-t+2=0

4t(t-2)-1(t-2)=0

(4t-1)(t-2)=0

Our zeros are thus t=2 and t = 1/4. Using these zeros, we can set up three zones: t < 1/4, 1/4<t<2, and t>2. We can take one random value from each of these zones and see if it fits the criteria of

4t²-9t+2 ≤ 0

For t<1/4, we can plug in 0. 4(0)²-9(0) + 2 = 2 >0 , so this is not correct

For 1/4<t<2, we can plug 1 in. 4(1)²-9(1) +2 = -3 <0, so this is correct

For t > 2, we can plug 5 in. 4(5)²-9(5) + 2 = 57 > 0, so this is not correct.

Therefore, for 4t^2 ≤ 9t-2 , which can also be written as 4t²-9t+2 ≤ 0, when t is between 1/4 and 2, the inequality is correct. Furthermore, as the sides are equal when t= 1/4 and t=2, this can be written as [0.25, 2]

8 0

3 years ago