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3 years ago

What is the y-intercept of the table

Mathematics

1 answer:

densk [106]3 years ago

7 0

The y-intercept is 7

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Which equation represents the line containing (0,-2) and (2,-1)?

77julia77 [94]

Answer:

The answer is A.

Step-by-step explanation:

You can make a test by substituing x-coordinate into the equation :

$y = \frac{1}{2} x - 2$

$let \: x = 0$

$y = \frac{1}{2} (0) - 2$

$y = - 2 \: (correct)$

$let \: x = 2$

$y = \frac{1}{2} (2) - 2$

$y = 1 - 2$

$y = - 1 \: (correct)$

8 0

3 years ago

What are the units for the variable in the following scenario?

krek1111 [17]

Answer:

Her grocery bill was $4.62.

Step-by-step explanation:

There is some mistake in question so the correct question is:

Sherry bought 6 apples at 43¢ per apple. She then bought 4 oranges at 51¢ per orange. How much was her grocery bill?

Now, to find the grocery bill.

As the units are given:

43¢ per apple and

51¢ per orange.

$1 = 100¢.

So, the cost of 6 apples = $0.43\times 6=2.58$

Thus, the cost of 6 apples = $2.58

And the cost of 4 oranges = $0.51\times 4=2.04$

Thus the cost of 4 oranges = $2.04

Now, to get the total grocery bill we add the cost of apples and oranges:

$\$2.58+\$2.04$

$=\$4.62$

Therefore, her grocery bill was $4.62.

7 0

3 years ago

Which fraction do you multiply by to simplify 5/ 4 - 3i ?

Rzqust [24]

So I assume
$\frac{5}{4-3i}$

If so. Let us begin.

$\mathrm{Multiply\:by\:the\:conjugate}\:\frac{4+3i}{4+3i} \ \textgreater \ \frac{5\left(4+3i\right)}{\left(4-3i\right)\left(4+3i\right)} \ \textgreater \ \left(4-3i\right)\left(4+3i\right)$

$\mathrm{Apply\:complex\:arithmetic\:rule}:\ \left(a+bi\right)\left(a-bi\right)=a^2+b^2$
$Where\;a=4,\:b=-3 \ \textgreater \ 4^2+\left(-3\right)^2 \ \textgreater \ Refine \ \textgreater \ 25$

$\frac{5\left(4+3i\right)}{25} \ \textgreater \ \mathrm{Cancel\:the\:common\:factor:}\:5 \ \textgreater \ \frac{4+3i}{5}$

$Group\:the\:real\:part\:and\:the\:imaginary\:part\:of\:the\:complex\:number$
$\frac{4}{5}+\frac{3}{5}i\;is\;our\;answer!$

Hope this helps!

3 0

3 years ago

(4x1000) + (2x100) + (3x1/10)

disa [49]

(4*1000) + (2*100) + (3*1/10) = 4200.3
(4x1000) + (2x100) + (3x1/10) = 4200.3

Both are equal.

5 0

3 years ago

Read 2 more answers

Max makes a scale drawing of distance between salt lake city and Arizona. The distance between salt lake city and Arizona is 21

Elena L [17]

750 kilometers. 21 divided by 7 is 3. If 7 cm equals 250 km, then 7 × 3 = 250.

8 0

3 years ago