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scZoUnD [109]
3 years ago
11

PLEASE HELP WITH YEAR 8 MATH

Mathematics
1 answer:
Luden [163]3 years ago
7 0

Answer:

a. x=40    b. x=19

Step-by-step explanation:

a. 40+40= 80

80+10=90

90=right triangle

b. 3 x 19= 57

57+19

76+14= 90

90=right triangle

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Find the measurements of ZBOC.
KengaRu [80]

Answer:

∠ BOC = 40°

Step-by-step explanation:

∠ AOC = 90° , then

5x + 2x + 20 = 90

7x + 20 = 90 ( subtract 20 from both sides )

7x = 70 ( divide both sides by 7 )

x = 10

Then

∠ BOC = 2x + 20 = 2(10) + 20 = 20 + 20 = 40°

8 0
3 years ago
Find AB<br> Round to the nearest tenth.
lianna [129]

Answer:4.1

Step-by-step explanation:

c=AB

C=26°

B=122°

b=8

Using sine rule

c/sinC = b/sinB

c/sin26=8/sin122

Sin26=0.4384

Sin122=0.8480

c/0.4384=8/0.8480

Cross multiply

c x 0.8480=8 x 0.4384

c x 0.8480=3.5072

Divide both sides by 0.8480

(c x 0.8480)/0.8480=3.5072/0.8480

c=4.1

7 0
3 years ago
=^.^= ♥ ☺
evablogger [386]
One will be c
and 2 will be b

4 0
3 years ago
X+10=2 what is the value of x
allsm [11]
The answer to your question is X = -8

8 0
3 years ago
Read 2 more answers
The missing term in the denominator is
Margaret [11]

\frac{7^{16} }{7^{12} }= \frac{7^{16-34} }{7^{12-34} } =\frac{7^{-18} }{7^{-22} } = 2401

so the missing term in the denominator is 7^(-22)

ok done. Thank to me :>

5 0
2 years ago
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