3 years ago

I need to to how to do this

Mathematics

1 answer:

gtnhenbr [62]3 years ago

4 0

Cotangent is one over tangent
1/(4/7)
Answer 7/4

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What pair of numbers have a sum of 100?

serg [7]

Answer:

50+50

75+25

60+40

90+10

45+55

Step-by-step explanation:

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3 years ago

Two angles of a quadrilateral measure 215° and 70°. The other two angles are in a ratio of 2:13. What are the measures of those

Aleks04 [339]

The sum of the interior angles of a quadrilateral is 360°.

The ratio of 2 angles is 2 : 13. Take them as 2x° & 13x°.

Now, solve for x.

$\mathfrak{215+70+2x+13x=360}$

$\mathfrak{285+15x=360}$

$\mathfrak{15x=360-285}$

$\mathfrak{15x=75}$

$\mathfrak{x=\dfrac{75}{15}}$

$\underline{\mathfrak{x=5}}$

So,

2x = 2(5) = $\boxed{\mathfrak{10^{\circ}}}$

13x = 13(5) = $\boxed{\mathfrak{65^{\circ}}}$

$\mathbb{MIREU}$

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3 years ago

There are a total of 20 lions, tigers and bears. If the number of tigers is 2 more than the number of lions and the number of be

erica [24]

Number of tiguers: x + 2
Number of Lions: x
Number of bears:(x+2)+1=(x+3)

We can suggest this equation:
(x+2) + (x)+(x+3)=20

3x+5=20
3x=20-5
3x=15
x=15/3
x=5.

Therefore:
Number of tiguers: x + 2=5+2=7
Number of Lions: x=5
Number of bears:(x+2)+1=(x+3)=5+3=8.

Answer: there are 7 tiguers, 5 lions and 8 bears.

8 0

4 years ago

Find the average rate of change for f(x) = x2 + 9x + 18 from x = -8 to x = -2.

aksik [14]

Need more information!!!!

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4 years ago

1. Tickets to the school musical cost $3 for students and $5 for

nika2105 [10]

Answer:

Your answer.

X = 176.15

Y = 252.3

X = student

Y= Non student

Thank you. And give my answer as Brainlist answer. Follow me for more

Step-by-step explanation:

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3 years ago