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2 years ago

No links plz. Need help asap.

Mathematics

1 answer:

jekas [21]2 years ago

7 0

Answer: 1155ft

Step-by-step explanation:

assuming that 70 m/s is the terminal velocity

1 meter=3.3 ft

70 meters= 231

231×5= 1155ft

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Please help!! Write the sum using summation notation, assuming the suggested pattern continues. -9 - 4 + 1 + 6 + ... + 66

fiasKO [112]

$r=-4-(-9)=-4+9=5 \\ \\ a_{1}=-9 \\ \\ a_{n}=66 \\ \\ a_{n}=a_{1}+(n-1)r \\ \\ -9+5(n-1)=66 \\ \\ -9+5n-5=66 \\ \\ 5n-14=66 \\ \\ 5n=80 \\ \\ n=16 \\ \\ S_{n}= \frac{a_{1}+a_{n}}{2} *n \\ \\ S_{n}= \frac{-9+66}{2}*16=57*8=456$

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3 years ago

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hichkok12 [17]

Answer:

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Step-by-step explanation:

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3 years ago

The sum of 2 and a number divided by 3 is greater than -10

Harrizon [31]

Answer:

$\frac{x}{3} + 2 > -10$

Step-by-step explanation:

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3 years ago

What is the answer to 3×2/3

dalvyx [7]

<h2><em>PEMDAS</em></h2><h2><em>Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction. Use this for the Order in which you do the work,</em></h2><h2><em>3 x 2 = 6. 6 / 3 = 2. 2 is your Answer. You could have done that with a calculator.</em></h2>

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3 years ago

Read 2 more answers

HELPP PLEASEEE

MrRa [10]

Answer: The answer to your question is 6 $\sqrt{3}$

Step-by-step explanation:

To solve this problem we will use proportions. We will compare the largest right triangle and the medium size triangle.

Medium triangle Large triangle

hypotenuse y 9 + 3

adjacent size 9 y

- Write the proportions

y/9 = (9 + 3)/y

-Solve for y

y² = 9(12)

y² = 108

y = $\sqrt{180}$

-Find the prime factors of 108

108 2

54 2

27 3

9 3

3 3

then, 108 = 2² 3³

-Expressthe root as fractional exponents

2²/² 3²/² 3¹/²

-Simplification

2(3)(3)¹/²

-Result

6 $\sqrt{3}$

8 0

3 years ago