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skelet666 [1.2K]
3 years ago
9

Work out the size of x

Mathematics
1 answer:
topjm [15]3 years ago
7 0

Answer:

They are supplementary angles so they add up to make 180°

So you do the reverse

180°-100°=x

80°=x

Step-by-step explanation:

Please give me brainliest

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Cameron said that the Y intercept of a quadratic function always tells the maximum value of the function. explain Cameron's erro
Leno4ka [110]

Answer:

We can have two cases.

A quadratic function where the leading coefficient is larger than zero, in this case the arms of the graph will open up, and it will continue forever, so the maximum in this case is infinite.

A quadratic function where the leading coefficient is negative. In this case the arms of the graph will open down, then the maximum of the quadratic function coincides with the vertex of the function.

Where for a generic function:

y(x) = a*x^2 + b*x + c

The vertex is at:

x = -a/2b

and the maximum value is:

y(-a/2b)

4 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
37+81 in distributive property
marusya05 [52]

37 + 81

(30 + 7) + (80 + 1)

30 + 7 + 80 + 1

(30 + 80) + (7 + 1)

110 + 8

118

7 0
3 years ago
The difference of a number times 2 and 7 is 9. (Use w for the unknown number)
asambeis [7]
2w-7=9
+7=+7
2w=16
2w/2=16/2
w=8
7 0
3 years ago
12.A taxi service charges you $ 1.50 plus
RoseWind [281]

Answer:

20 miles

Step-by-step explanation:

Add $1.50 plus $0.60 times 20 which is $13.50

The number you multiply to get to $13.50 is the amount of miles

6 0
2 years ago
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