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hodyreva [135]
3 years ago
12

Which angle’s measure is equal to the sum of the meaures of ∠BAC and ∠BCA? ∠CBA ∠CBE ∠DAC ∠BCF

Mathematics
2 answers:
valina [46]3 years ago
8 0

Answer: B CBE

Step-by-step explanation:

expeople1 [14]3 years ago
4 0
The answer is B or CBE
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PLEASE HELP WILL GIVE 40 POINTS
Zinaida [17]

Answer:

19 to 21

Step-by-step explanation:

Head table is for 6 attendants

158 to 174 - 6 attendants

152 to 168 people for round tables

each round table can sit 8 guests

so, 152/8  168/8

19 to 21

4 0
2 years ago
Read 2 more answers
If 5 4, − = x then x =<br> A. −21<br> B. −11<br> C. 1<br> D. 11
Angelina_Jolie [31]
5 - x = 4
Subtract x from both sides.
5 - x + x = 4 + x
5 = 4 + x
Subtract 4 from both sides.
5 - 4 = 4 + x - 4
Hence, the answer:

x = 1
4 0
3 years ago
Determine if the numbers are divisible by 2 3 5 10
ycow [4]

the numbers are 30x ,like 30*2=60

7 0
3 years ago
A random sample of 60 mathematics majors spent an average of $200.00 for textbooks for a term, with a standard deviation of $22.
tangare [24]

Answer:

20 +/- $6.74

= ( $13.26, $26.74)

The 90% confidence interval for the difference in average amounts spent on textbooks (math majors - English majors) is ( $13.26, $26.74)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x1-x2 +/- margin of error

x1-x2 +/- z(√(r1^2/n1 + r2^2/n2)

Given that;

Mean x1 = $200

x2 = $180

Standard deviation r1 = $22.50

r2 = $18.30

Number of samples n1 = 60

n2 = 40

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

$200-$180 +/-1.645(√(22.5^2/60 +18.3^2/40)

$20 +/- 6.744449847374

$20 +/- $6.74

= ( $13.26, $26.74)

The 90% confidence interval for the difference in average amounts spent on textbooks (math majors - English majors) is ( $13.26, $26.74)

3 0
3 years ago
The line with equation y=my+b is perpendicular to the line with equation y=16 - x/3. The value of m is ____?
sweet-ann [11.9K]

Answer:

m=3

Step-by-step explanation:

Perpendicular lines intersect at 90 degrees or perpendicular angles. As such, their slopes are related. The slope of each line is the negative reciprocal of the other. For the equation, y=16-\frac{x}{3}. The slope or m=-\frac{1}{3}. This means the slope of the other line will be the negative reciprocal which is -(-3)=3

8 0
3 years ago
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