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2 years ago

I only need help with 10, 11, 12

Mathematics

1 answer:

natulia [17]2 years ago

4 0

Answer:

Step-by-step explanation:

11 is the same as 9

10 is the same as number 9

12 i dont know

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Ellen rotated triangle ABC 90° clockwise around point A to form triangle ACD and rotated triangle ABC 180° clockwise around poin

Serjik [45]

It is a. You didnt load the pic but if you did if you rotated Dc 90 it would complete BE.

6 0

2 years ago

18x + 101 = 4<br> 91 – 51'= -1<br> help me pleasee

juin [17]

Distribute the -9 into the values in the parentheses.

STEP BY STEP

-9(-2x-3)

-9*-2x=18x

-9*-3=27

Therefore, the equation then becomes: 18x+27.

The answer is the first choice, or A.

3 0

2 years ago

Right triangle ABC has a right angle at ∠B and the following measures: AB=37, m∠C=65°, and m∠A=25°.

julia-pushkina [17]

Answer: option B is the correct answer.

Step-by-step explanation:

Triangle ABC is a right angle triangle.

From the given right angle triangle,

AC represents the hypotenuse of the right angle triangle.

With m∠C as the reference angle,

BC represents the adjacent side of the right angle triangle.

AB represents the opposite side of the right angle triangle.

To determine m, we would apply

the Tangent trigonometric ratio.

Tan θ, = opposite side/adjacent side. Therefore,

Tan 65 = 37/m

m = 37/Tan65

m = 37/2.1445

m = 17.25

3 0

3 years ago

In 2012 Staci invested $14,500 in a savings account for her newborn son. The account pays 3.6% interest each year. Determine the

s2008m [1.1K]

Answer: $23,896

Step-by-step explanation:

In the year 2030, the number of years since the investment would be;

= 2030 - 2012

= 18 years.

As the question does not mention that the interest paid is compounded, simple interest will be used;

= Amount + (Amount * interest rate * number of years).

= 14,500 + ( 14,500 * 0.036 * 18)

= $23,896

6 0

3 years ago

Two circles, one of radius 5 inches, the other of radius 2 inches, are tangent at point P. Two bugs start crawling at the same t

lawyer [7]

Answer:

40 minutes

Step-by-step explanation:

The circumference of the larger circle is ...

C = 2πr = 2π(5 in) = 10π in

The bug navigates the circumference at 3π in/min, so will take

time = distance/speed = (10π in)/(3π in/min) = 10/3 min

to travel once around.

The circumference of the smaller circle is ...

C = 2πr = 2π(2 in) = 4π in

The bug navigates this circumference at 2.5π in/min, so will take

(4π in)/(2.5π in/min) = 8/5 min

to travel once around.

The bugs will meet at a time that is the least common multiple of these times. Both can be expressed in 15ths of a minute as ...

{50/15, 24/15}

Then the LCM of these will be ...

(1/15)LCM(50, 24) = (1/15)(50×24)/GCD(50, 24) = 1200/30 = 40

It will be 40 minutes before the bugs next meet at point P.

___

A graphing calculator can make use of the mod function to show when the bugs meet at point P (total is displacement of the two bugs from P is zero). It shows the meeting occurs after 40 minutes.

5 0

3 years ago