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3 years ago

3x + 6 = -9 What is X?

Mathematics

2 answers:

emmasim [6.3K]3 years ago

6 0

Answer:

= − 5

Step-by-step explanation:

The steps are in the (2) pictures below. Hope this helps!

padilas [110]3 years ago

4 0

Answer:

x=-5

Step-by-step explanation:

3x+6=-9

-6 -6

3x=-15

x=-5

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Andre45 [30]

It would be A) The angles are angle bisectors
I am 90% sure

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3 years ago

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Convert the rate of 10 yards per 5 minutes to feet per hour

jenyasd209 [6]

10 yards per 5min is

10yrd/5min

first convert it into yards per minute

10yrds/5min = 2yrds/1min

let's first so the yards to feet part first

1 yrd = 3 feet

2yrds/min * 3ft/1yrd

so now we have

6yrds/min

now convert minute to hour

1 hour = 60 mins

6yrds/min * 60min/1hr

=360/1hr

remember so that units cancel

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4 years ago

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A two-pound bag of assorted candy contained 100 caramels, 83 mint patties, 93 chocolate squares, 80 nut clusters, and 79 peanut

faltersainse [42]

Answer:

The degree measure of the slice representing the mint patties rounded to the nearest degree is 69°.

Step-by-step explanation:

Consider the provided information.

A two-pound bag of assorted candy contained 100 caramels,

83 mint patties,

93 chocolate squares,

80 nut clusters,

79 peanut butter taffy pieces.

Now find the degree measure of the slice representing the mint patties rounded to the nearest degree as shown:

$\frac{83}{100+83+93+80+79} \times 360^0$

$\frac{83}{435} \times 360^0$

$68.69\approx69^0$

Hence, the degree measure of the slice representing the mint patties rounded to the nearest degree is 69°.

7 0

3 years ago

An ellipse has vertices at (0, #17) and foci at (0, ±15). Write the equation of the ellipse in standard form. Graph the ellipse.

Lunna [17]

<u>ANSWER</u>

$\frac{ {x}^{2} }{ 64 } + \frac{ {y}^{2} }{ 289 } = 1$

See attachment for the graph

<u>EXPLANATION</u>

The standard equation of the vertical ellipse with center at the origin is given by

$\frac{ {x}^{2} }{ {b}^{2} } + \frac{ {y}^{2} }{ {a}^{2} } = 1$

where

${a}^{2} \: > \: {b}^{2}$

The ellipse has its vertices at (0,±17).

This implies that:a=±17 or a²=289

The foci are located at (0,±15).

This implies that:c=±15 or c²=225

We use the following relation to find the value of b²

${a}^{2} - {b}^{2} = {c}^{2}$

$\implies \: 289 - {b}^{2} = 225$

$- {b}^{2} = 225 - 289$

$- {b}^{2} = - 64$

${b}^{2} = 64$

We substitute into the formula for the standard equation to get:

$\frac{ {x}^{2} }{ 64 } + \frac{ {y}^{2} }{ 289 } = 1$

4 0

3 years ago

Which inequality best represents that ice cream at −2°C is cooler than ice cream at 3°C?

DIA [1.3K]

The answer is the third option, 3ºC > -2ºC because it shows that 3 is more than negative 2.

Think of inequalities as a crocodile- it wants to eat the bigger amount!
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3 0

4 years ago

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