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3 years ago

The _ of the _ angle of an isosceles triangle is also the what of the base

1 answer:

4 0

Maybe . the sum of the interior angle of an iscosoles triangle is also... idk but 2 sides of an iscosoles triangle are equal and the part that's not is the base

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Someone pls help me!!

steposvetlana [31]

Answer:

$r = \frac{12\sin 20\degree}{ \sin 35\degree }$

Step-by-step explanation:

By sine rule

$\frac{r}{ \sin \angle R } = \frac{p}{ \sin \angle P} \\ \\ \frac{r}{ \sin 20\degree } = \frac{12}{ \sin 35\degree } \\ \\ r = \frac{12\sin 20\degree}{ \sin 35\degree }$

5 0

3 years ago

Ubehebe crater in Death Vally has a diameter of a little more than 1/2 mile. If latisha walks around its rim at a rate of 2 mile

Sergeu [11.5K]

$l=2 \pi r$
r=0.25 miles
l=2× $\pi$ ×0.25
=0.5 × 3.14
=1.57

120(minutes)÷2(miles)=60(minutes per mile)
60×1.57=94.2 minutes

8 0

3 years ago

John paid $222 for four hours of skiing and two hours boating. He paid $213 for two hours skiing and three hours boating. What i

Inga [223]

Answer:

Skiing costs $30 per hour and Boating costs $51 per hour.

Step-by-step explanation:

Let cost per hour of skiing be x and cost per hour of boating be y. Let's dissect the problem into 2 simultaneous equations.

"John paid $222 for four hours of skiing and two hours boating":

$4x+2y=222$

"He paid $213 for two hours skiing and three hours boating":

$2x+3y=213$

Now, if we solve for x in the 2nd equation and plug it in the 1st equation, we will have the value for y. Work shown below.

$2x+3y=213\\2x=213-3y\\x=\frac{213-3y}{2}\\Equation 1: 4x+2y=222\\Substituting :\\4(\frac{213-3y}{2})+2y=222\\2(213-3y)+2y=222\\426-6y+2y=222\\426-222=6y-2y\\204=4y\\y=\frac{204}{4}=51$

Hence, y = 51

Now, substituting this y value into the 1st equation and solving for x will give us the value of x.

$First Equation: 4x+2y=222\\4x+2(51)=222\\4x+102=222\\4x=222-102\\4x=120\\x=\frac{120}{4}=30$

Hence, skiing costs $30 per hour and boating costs $51 per hour.

4 0

3 years ago

Mrs. Bonilla is a saleswoman at a furniture store. Her commission on rugs is 10% and her commission on furniture is 15%. Her goa

lara31 [8.8K]

so here is how you can answer this:

Your commission must be equal to the sum of the 10% of the value of the rug and the 15% of the value of the furniture and equate this to the value of your commission. Translate this to a mathematical equation, you would get,

Commission = (10%) (value of rugs) + (15%) (value of furniture).
substituting the known values,

5000 =.1 * x + .15 * 12500.

Now it's a matter of finding for x. You should get,

x = $31,250.

8 0

3 years ago

- 2x (a+h)^2+4(a+h)-12

hjlf

That’s the answer mama

7 0

3 years ago

The ___ of the ___ angle of an isosceles triangle is also the what of the base

The _ of the _ angle of an isosceles triangle is also the what of the base