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Nonamiya [84]
3 years ago
11

Please help me answer I need an answer asap:3

Mathematics
2 answers:
Mariana [72]3 years ago
8 0

Answer:

please mark my answer brainliest

Step-by-step explanation:

it's 115

Anit [1.1K]3 years ago
7 0

Answer:

115 degrees.

Step-by-step explanation:

< DBC = (180 - 40) / 2 = 70    ( as it is a base angle of an isosceles Δ)

< EBD = 45 degrees ( as the diagonal of a square bisects 90 degree <).

So < EBC = 70 + 45 = 115 degrees.

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Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-
Ostrovityanka [42]

Answer:

2.25

Step-by-step explanation:

The computation of the number c that satisfied is shown below:

Given that

f(x) = \sqrt{x}

Interval = (0,9)

According to the Rolle's mean value theorem,

If f(x) is continuous in {a,b) and it is distinct also

And, f(a) ≠ f(b) so its existance should be at least one value

i.e

f^i(c) = \frac{f(b) - f(a)}{b -a }

After this,

f(x) = \sqrt{x} \\\\ f^i(x) = \frac{1}{2}x ^{\frac{1}{2} - 1} \\\\ =  \frac{1}{2}x ^{\frac{-1}{2}

f^i(x) = \frac{1}{{2}\sqrt{x} } = f^i(c) = \frac{1}{{2}\sqrt{c} } \\\\\a = 0, f (a) = f(o) = \sqrt{0} = 0 \\\\\ b = 9 , f (b) = f(a) = \sqrt{9} = 3\\

After this,

Put the values of a and b to the above equation

f^i(c) = \frac{f(b) - f(a)}{b - a}  \\\\ \frac{1}{{2}\sqrt{c} } = \frac{3 -0}{9-0}  \\\\ \frac{1}{\sqrt[2]{c} } = \frac{3}{9} \\\\ \frac{1}{\sqrt[2]{c} } = \frac{1}{3} \\\\ \sqrt[2]{c} = 3\\\\\sqrt{c} = \frac{3}{2} \\\\ c = \frac{9}{4}

= 2.25

4 0
3 years ago
A 16-fl oz bottle of juice costs $2.00. What is the unit cost?
frozen [14]
If a 16-fluid-ounce bottle of juice costs $2.00, the unit cost would be about $0.13 per ounce. 16/2=8, 1/8=0.125, 0.125=> $0.13.
7 0
3 years ago
A geometric sequence has u4= -70 and u7=8.75<br> Find the second term of the sequence.
Kobotan [32]

Answer:

-122.5

Step-by-step explanation:

Difference = 7 - 4 = 3 terms; 8.75 - (-70) = 78.75

1 term → 78.75/3 = 26.25

therefore, u2 = - 70 - 2(26.25) = -122.5

Topic: Patterns + Common difference

If you would like to venture further into mathematics, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

5 0
2 years ago
A bulb after certain testing had a life of 25 months. The standard deviation based on this sample of size one is
lapo4ka [179]

Answer:

<h2>25 months</h2>

Step-by-step explanation:

Using the formula for calculating the standard error of the mean to get the standard deviation. The standard error of the mean is expressed as;

SE = S/√n where;

S is the standard deviation

n is the sample size

Given SE = 25 months and n = 1, on substituting this parameters into the formula, we will have;

25 = S/√1

25 = S/1

cross multiply

S = 25*1

S = 25 months

<em>Hence the standard deviation based on the sample is 25 months</em>

8 0
3 years ago
Shawn bought fruit last week, consisting of 2.26 pounds of bananas, ​ 1.5 pounds of grapes, and a watermelon that weighed 6.78 p
Anit [1.1K]

Answer:

10.54 pounds is right answer

Step-by-step explanation:

bananas 2.26  pounds

Grapes  1.5 pounds

water melon 6.78 pounds

total weight = 10.54 pounds

6 0
3 years ago
Read 2 more answers
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