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Alexandra [31]
3 years ago
15

What is the measure of

Mathematics
1 answer:
nadezda [96]3 years ago
5 0

Answer:

It's 15°

Step-by-step explanation:

BC+60°+85°+200° =360°

BC+345°=360°

BC=360°-345°

Bc=15°

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HELP ASAP ILL GIVE YOU BRAINLEST
stellarik [79]

Answer:

f(x) = (8/3)x(x - 1).

Step-by-step explanation:

The vertex form of the function is

y = a(x - 1/2)^2 - 2/3   where a is some constant.

Now the roots are 0 and 1 so

For  x = 0

0 =  a(-1/2)^2 - 2/3

1/4 a = 2/3

a = 2/3 / 1/4  = 8/3.

So the function is

f(x) = (8/3)(x - 1/2)^2 - 2/3.

3 f(x) = 8(x - 1/2)^2 - 2

= 8(x^2 - x + 1/4) - 2

=  8x^2 - 8x + 2 - 2

3 f(x) = 8x(x - 1)

f(x) = (8/3)x(x - 1).

5 0
3 years ago
Read 2 more answers
The dimensions of a closed rectangular box are measured as 90 centimeters, 50centimeters, and 90 centimeters, respectively, with
gogolik [260]

Answer:

184 cm²

Step-by-step explanation:

Surface area of the rectangular box is expressed as S = 2(LW+LH+WH)

L is the length of the box = 90 cm

W is the width of the box = 50 cm

H is the height of the box= 90 cm

If there are error of at most 0.2 cm in each measurement, then the total surface area using differential estimate will be expressed as shown;

S = 2{(LdW+WdL) + (LdH+HdL) + (WdH+HdW)

Note that dL = dW = dH = 0.2 cm

Substituting the given values into the formula to estimate the maximum error in calculating the surface area of the box

S = 2{(90(0.2)+50(0.2)) + (90(0.2)+90(0.2)) + (50(0.2)+90(0.2))

S = 2{18+10+18+18+10+18}

S = 2(92)

S = 184 cm²

Hence, the maximum error in calculating the surface area of the box is 184cm²

5 0
3 years ago
12.125 rounded to the nearest tenth.
nika2105 [10]
Answer: 12.1
Look at the hundredth place for rounding to tens and since it is less than 5 you drop the following numbers and keep the 1 
:)<span />
8 0
3 years ago
What two estimates is the quotient 345\8 between
grandymaker [24]
345/8 is the another one yes
4 0
3 years ago
Read 2 more answers
Please help! I will mark the 1st answer as brainiest.
uranmaximum [27]

Answer:

256 m^2

Step-by-step explanation:

area = b x h

16 x 16 = <em>256</em>

both combined would be <em>512</em>

4 0
3 years ago
Read 2 more answers
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