4 years ago

Which statements are true about the ordered pair (−1,−4) and the system of equations?

Mathematics

1 answer:

erica [24]4 years ago

4 0

The correct awnser in my opion is d hope that helps

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What is 4.5w=5.1w-30 step by step?

MA_775_DIABLO [31]

Correct me if I’m wrong

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4 years ago

Find all the missing elements:

pshichka [43]

Answer:

C = 21.78 and a= 8.88

Step-by-step explanation:

Here, sides b=7 and c=3

Also, Angle B=60

Angle B is between side c and a

It can be solve by cosine rule and sin rule

sin rule says,

$\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC} \\ \frac{a}{sinA} = \frac{7}{sin60} = \frac{3}{sinC} \\ \frac{7}{sin60} = \frac{3}{sinC} \\ sinC = \frac{3}{7} \: sin60 = 0.3711537445 \\ \\ C = 21.78$

cosine rule says,

${a}^{2} = {b}^{2} + {c}^{2} + 2bc \: cos(B) \\ {a}^{2} = {7}^{2} + {3}^{2} + 2(7)(3) \: cos(60) \\ {a}^{2} = 49 + 9 + \:21 = 79 \\ a = 8.88$

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3 years ago

5 Carla packs 4 pairs of pants, 2 pairs of shorts, and 3 skirts for her vacation.

lyudmila [28]

Answer: D

Step-by-step explanation:

8 0

3 years ago

Which pattern follows the rule “subtract 3, add 6

GuDViN [60]

Answer:

3, 6, 9, 12, 15, 18, etc.

It would basically be counting up by 3's

Another way to put this pattern is +6, -3

for e.g.,

0 + 6 = 6

6 - 3 = 3

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3 years ago

A brick of cheese is 3/4 inch thick. A deli

slamgirl [31]

What is the question

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4 years ago