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3 years ago

Help me pleeaaseeeee

Mathematics

2 answers:

kykrilka [37]3 years ago

7 0

Answer:

120 degrees

Step-by-step explanation:

the angle is larger than 90 degrees but smaller than 180. if you add 90+15 you'd get 105 degrees but that seems a little too small so your best bet is 120

zhenek [66]3 years ago

5 0

Answer:

100?

Step-by-step explanation:

Yan po sagot ko e natama naman kami

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Complete the equation… Picture is included Please answer!! No links please!!!

sp2606 [1]

You should subtract the powers when they are divided and add them when they are multiplied this rule is so important for now you just have to subtract them and you will get the answer
Hope it helps :)

8 0

2 years ago

Write the equation of each ellipse in standard form with the given characteristics.

Eddi Din [679]

Answer:

Step-by-step explanation:

The foci are horizontally aligned.

horizontal ellipse:

(x-h)²/a² + (y-k)²/b² = 1

center (h,k)

vertices (h±a,k)

length of minor axis = 2b

foci (h±c,k), c² = a²-b²

Apply your data and solve for h, k, a, and b.

foci (±3√19, 6)

h = 0

k = 6

Length of minor axis = 2b = 10

b = 5

foci (h±3√19, 6)

c = 3√19

c³ = a² - b²

171 = a² - 25

a² = 196

x²/196 + (y-6)²/25 = 1

6 0

3 years ago

Histogram can be drawn for equal and unequal classes. True/False

Elis [28]

Answer:

False

Step-by-step explanation:

3 0

2 years ago

Mary is making some shirts for her school's drama department. The fabric store has 3 1/6 yards of the fabric she wants in stock.

ddd [48]

The answer is 4 3/4 yards of the fabric.

This can be calculated using the proportion.
If the 3 1/6 yards of the fabric is enough for 1 1/3 shirts, how many yards are necessary of 2 shirts:
 $3 \frac{1}{6} yards :1 \frac{1}{3}shirts =xyards:2shirts$

Let's express 3 1/6 as 19/6:
$3 \frac{1}{6} =3+ \frac{1}{6} = 3* \frac{6}{6}+ \frac{1}{6} = \frac{18}{6} + \frac{1}{6} = \frac{18+1}{6} = \frac{19}{6}$

Similarly, 1 1/3 = 4/3:
$1 \frac{1}{3} =1+ \frac{1}{3} = 1* \frac{3}{3}+ \frac{1}{3} = \frac{3}{3} + \frac{1}{3} = \frac{3+1}{3} = \frac{4}{3}$

Now, let's use this in the proportion:
 $3 \frac{1}{6} yards :1 \frac{1}{3}shirts =xyards:2shirts$
 $\frac{19}{6} : \frac{4}{3} = x:2$

Crossing the products:
$x* \frac{4}{3} =2* \frac{19}{6}$
⇒ $x* \frac{4}{3} = \frac{19}{3}$
⇒ $x = \frac{19}{3} : \frac{4}{3}$
$x= \frac{19}{3} * \frac{3}{4}$
⇒ $x = \frac{19}{4} = \frac{16+3}{4} = \frac{16}{4} + \frac{3}{4} =4+ \frac{3}{4} =4 \frac{3}{4}$

Therefore, Mary needs in total 4 3/4 yards of the fabric.

6 0

3 years ago

Read 2 more answers

I'm an idiot. How do you know the difference between a quadratic and exponential equation just by looking at it without a graph?

Zepler [3.9K]

Answer:

It's easy

Step-by-step explanation:

An exponential equation always has x as an exponent so just look for it

Ex:x+2=0(quadratic) Ex:2^x=0(exponential)

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3 years ago