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3 years ago

8

-3t + 9 greater than or equal to-21

2 answers:

gladu [14]3 years ago

7 0

Answer: t<=10

Step-by-step explanation:

-3t+9>=-21

-3t>=-30

3t<=30

t<=10

nordsb [41]3 years ago

6 0

Answer

t = -4

Step-by-step explanation:

First you subtract 9 from both sides. You get 12 on the right. Then you divide both sides by -3. You get -4.

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I need help plsssss...........

ch4aika [34]

Answer:

<h2>A)x=3/2 y=½</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

system of linear equation
PEMDAS

<h3>let's solve:</h3>

since y is equal to both equation therefore we can substitute the value of y into the other equation

$\sf substitute \: the \: value \: of \: y : \\ \sf - x + 2 = 3x - 4$
$\sf add \: x \: to \: both \: sides : \\ \sf - x + x + 2 = 3x + x - 4 \\ \sf 4x - 4 = 2$
$\sf add \: 4 \: to \: both \: sides : \\ \sf xx - 4 + 4 = 2 + 4 \\ 4x = 6$
$\sf divide \: both \: sides \: by \: 4 : \\ \frac{4x}{4} = \frac{6}{4} \\ x = \frac{3}{2}$

let's figure out y

substitute the got value of x into the second equation: y=3*3/2 -4
simplify multiplication:9/2 -4
simplify division:4.5-4
substract:0.5 alternate form:y=½

3 0

3 years ago

Which equation can be used to find the measure of an angle that is supplementary to ∠EOF

sweet-ann [11.9K]

C because eof plus fob will end up being 180

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4 years ago

Write all the names of the quadrilateral shown.<br> ???

r-ruslan [8.4K]

Answer:

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Step-by-step explanation:

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3 years ago

1/3^-1-1^-1/4^-1<br>find the value in the following equation

nadezda [96]

Answer:

-1/6

Step-by-step explanation:

= 1/3 (-1-1) x -1/4 (-1)

= 1/3 (-2) x 1/4

= -2/3 x 1/4

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2 and 12 can cancel out each other.

so the answer will be.

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3 years ago

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sattari [20]

Answer:

Circumference of a 20 Inch Diameter Circle.

Step-by-step explanation:

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5′ 2.832″ feet and inches

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3 0

3 years ago

Read 2 more answers