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zalisa [80]
3 years ago
9

What is the missing angle? 133, 26 , ?

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
7 0
21 because a triangle is always going to equal 180 so add those then subtract and it’s 21
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In the figure below, \overline{AD} AD start overline, A, D, end overline and \overline{BE} BE start overline, B, E, end overline
VLD [36.1K]

Answer:

<u>The measure of the arc CD = 64°</u>

Step-by-step explanation:

It is required to find the measure of the arc CD in degrees.

So, as shown at the graph

BE and AD are are diameters of circle P

And ∠APE is a right angle ⇒ ∠APE = 90°

So, BE⊥AD

And so, ∠BPE = 90° ⇒(1)

But it is given: ∠BPE = (33k-9)° ⇒(2)

From (1) and (2)

∴ 33k - 9 = 90

∴ 33k = 90 + 9 = 99

∴ k = 99/33 = 3

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By substitution with k

<u>∴ The measure of the arc CD = 20*3 + 4 = 60 + 4 = 64°</u>

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3 years ago
Zach spent 2/3 hour reading on Friday and 1 1/3 hours reading on Saturday. how much more time did he read on Saturday than on Fr
amid [387]
11/3 - 2/3 = 9/3 = 3 so he spent 3 more hours reading on saturday than on friday


Hope this helps!
6 0
3 years ago
If QRST is a kite, find mZQRS. R (11x - 6) 79° S (4x + 13) T mZQRS<br>I really need help!​
maxonik [38]

Step-by-step explanation:

4x +13 +79+79+ 11x-6 = 360

15x +165 = 360

15x = 195

x =13

QRS = 11(13)-6 = 137

4 0
3 years ago
Evaluate f(x)3x + 8 for x = 1.<br><br> A. -11<br> B. 5<br> C. 11<br> D. 3
mariarad [96]

Answer:11

Step-by-step explanation:

f(x)=3x+8

f(1)=3(1)+8

f(1)=3+8

f(1)=11

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steposvetlana [31]

Answer:

approximately 27 grams

Work Shown:

Half life formula

y = A*(0.5)^(x/H)

where,

A = starting amount = 30 grams

H = half life period = 90 years

x = number of years that pass by = 12

y = amount left over after x years

Let's plug the values for x, A and H into the formula to find y

y = A*(0.5)^(x/H)

y = 30*(0.5)^(12/90)

y = 27.3516746567466

y = 27 .... rounding to the nearest whole number

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3 years ago
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