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3 years ago

PLEASE HELP URGENT!!!! what is the measure of angle C? 38 degrees. 76 degrees. 90 degrees. 152 degrees.

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

6 0

38 degrees

The measure of inscribed angles is half the measure of the arc

~hope this helps~~

garik1379 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

less than 45

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Determine the sum of the first 9 terms in the geometric series where r= -0.25 and a1= 256.

Damm [24]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio}\\ ----------\\ r=-0.25\\ a_1=256\\ n=9 \end{cases}$

$\bf S_9=256\left(\cfrac{1-(-0.25)^9}{1-(-0.25)} \right)\implies S_9=256\left( \cfrac{1+0.25^9}{1+0.25} \right) \\\\\\ S_9=256\left( \cfrac{52429}{65536}\right)\implies S_9=\cfrac{52429}{256}\implies S_9=204.80078125$

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3 years ago

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At a school, 1 out of every 3 girls who tried out for basketball made the

nikdorinn [45]

Answer:

1:2

Step-by-step explanation:

because only one gets into the team

and the remaining two don't make the team

8 0

3 years ago

I have 7 students. Two of them love skateboarding, and five love biking. If my number of students doubles, but the ratio of pref

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Answer:

10 (love biking)

Step-by-step explanation:

The ratio is 2(Skateboarding):5(biking) which, when doubled is; 4(skateboarding):10(biking)

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3 years ago

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Which is greater? 4 tenths and 2 hundredths or 2 tenths and 4 hundredths

Orlov [11]

4 tenths and 2 hundredths is written .42

2 tenths and 4 hundreds is written .24

.42 is greater than .24

.42 > .24

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8 0

3 years ago

Can somebody help me find the surface area of this

-Dominant- [34]

Answer:

G. 7600 $cm^{2}$

Step-by-step explanation:

Step 1: Deconstruct the shape

2 rectangles with dimension of 50 cm x 20 cm

2 rectangles with dimension of 40 cm x 20 cm

2 rectangles with dimension of 40 cm x 50 cm

Step 2: Find surface area of the shapes

2(50 x 20) = 2000 $cm^{2}$

2(40 x 20) = 1600 $cm^{2}$

2(40 x 50) = 4000 $cm^{2}$

Step 3: Add the surface areas together

2000 + 1600 + 4000 = 7600 $cm^{2}$

Therefore the surface area is 7600 $cm^{2}$ and the answer is G.

4 0

3 years ago