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1 year ago

4<4x+8<20 HELPPP ME PLS

Mathematics

1 answer:

ratelena [41]1 year ago

4 0

Step-by-step explanation:

let's break it down first

$4x + 8 < 20$

$4x < 20 - 8$

$4x < 12$

Divide both sides by the coefficient of x which is 4

$4x \div 4 < 12 \div 4$

$x < 3$

$4 < x < 3$

4 is less than x which is greater than 3

x = 4,5,6,7,8,......

since 4 is less than x, x cannot be 4

so x could be 5,6,7,8,9,.......

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2 years ago

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4. Roger was growing plants for his science project. He measured the plants every day.

Zinaida [17]

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2 years ago

Graph y=-(4)<br> X PLS HELP

mario62 [17]

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2 years ago

H=7+44t-16^2

djyliett [7]

Answer:

$t_1\approx2.18$

$t_2\approx0.57$

Step-by-step explanation:

$h=7+44t-16t^2$

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$t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$t=\frac{-44\pm\sqrt{44^2-4(-16)(-20)}}{2(-16)}$

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2 years ago

Represent the complex number graphically, and find the trignometric form of the number. 1 + 3i

nevsk [136]

The trigonometric form of the complex number 1 + 3i is 3.16[cos(71.57)° + isin(71.57°)]

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Complex number is in the form z = a + bi, where a, b are real numbers.

Given the complex number z = 1 + 3i

In polar form: r = √(1² + 3²) = 3.16

Ф = tan⁻¹ (3/1) = 71.57⁰

The trigonometric form of the complex number 1 + 3i is 3.16[cos(71.57)° + isin(71.57°)]

Find out more on equation at: brainly.com/question/2972832

#SPJ1

7 0

1 year ago

4<4x+8<20￼￼ HELPPP ME PLS

4<4x+8<20 HELPPP ME PLS