2 years ago

What information about a triangle is necessary in order to use the cosine

Mathematics

1 answer:

Nezavi [6.7K]2 years ago

6 0

It is not 90 degrees it is 87

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An animal shelter has a ratio of cats to dogs that is 9 to 7. If the shelter has 18 cats, how many dogs would it have?

madreJ [45]

Answer: 14 dogs

Step-by-step explanation:

Given

The ratio of cats to dogs is 9:7

The shelter has 18 cats

Suppose shelter has x dogs

$\Rightarrow \dfrac{9}{7}=\dfrac{18}{x}\\\\\Rightarrow x=\dfrac{18\times 7}{9}=14\ \text{dogs}$

5 0

2 years ago

The radius of the circle is 2 units

photoshop1234 [79]

Answer:

Diameter is basically double the radius, a physical representation of it is a full line that goes across the middle of the circle, if that makes sense. So you do 2 x 2 = 4 units

Hope that answers your question

8 0

3 years ago

0.9(3÷2.25− 1/8 (1 2/3 1/9 ))− 4/7 ÷0.8. i would like to know what this equals if you could help that would be great.

mario62 [17]

Answer:

781/1680

Step-by-step explanation:

Don't you have a calculator?

I assume that by (1 2/3 1/9), you mean (1+2/3)*(1/9)

Assuming that you put all necessary parentheses:

781/1680, approx. 0.4648809523809524

7 0

3 years ago

Anyone in 10th grade please help me because I have to pass this later at 10 pm:(

Alenkinab [10]

18) $19m^8n^8-\left(4m^5n\right)\left(3m^3n^7\right)$

$=19m^8n^8-4m^5n\cdot \:3m^3n^7$

$=19m^8n^8-12m^8n^8$

$=7m^8n^8$

19) $\left(-5cd\right)\left(-3c^4d\right)-\left(7c^2d^2\right)\left(2c^3\right)$

$=5cd\cdot \:3c^4d-7c^2d^2\cdot \:2c^3$

$=15c^5d^2-14c^5d^2$

$=c^5d^2$

6 0

3 years ago

Help me PLEASE quick I will give you brainliest

slamgirl [31]

68 i am pretty sure.

5 0

2 years ago

Read 2 more answers