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evablogger [386]
2 years ago
10

in parallelogram abcd angle b is a right angle determine whether the parallelogram is a rectangle if so by what property​

Mathematics
1 answer:
Digiron [165]2 years ago
8 0

Answer:

If a parallelogram has at least one 90 degree angle then its opposite angle is equal and also = 90 degrees.  

The 2 remaining opposite angles add up to 180 degrees and since they must be equal, they must be 90 degrees each.

So, we have a quadrilateral with four 90 degree angles and is therefore a rectangle OR it could possibly be a square.

Step-by-step explanation:

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Benjamin drove 278 miles in 4 hours.
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Step-by-step explanation:

rate \:of \: driving \\  =  \frac{278}{4}  \\  = 69.5 \: mph

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3 years ago
Evaluate the expression if m = – 4, n = 1, p = 2, q = –6, r = 5, and t = -2.<br><br> |3r + 6m
fgiga [73]

Answer:

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2 years ago
PLEASE HELP ME!
vladimir1956 [14]
Divide the long leg by the square root of 3 to find the short leg. Double that figure to find the hypotenuse.
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3 years ago
a university is comparing the grade point averages of biology majors with grade point averages of engineering majors. the univer
Ronch [10]

Answer:

H0 : μEng = μBio

H1: μEng ≠ μBio

Step-by-step explanation:

μEng = Engineering average gpa

μBio = Biology average gpa

To test for difference between two sample means , in this case grade point average of biology majors and Engineering major.

Null hypothesis is the initial truth, which is that ; there is no difference in the mean grade point average of both biology and engineering majors

H0 : μEng = μBio

The Alternative hypothesis is the opposite of the null, which is stated has ; there is difference between the average GPA of both Engineering and Biology majors

H1: μEng ≠ μBio

7 0
3 years ago
Answer of a ²-10a+16-6b-b^2​
german

\quad a^2-10a+16-6b-b^2

$=(a^2-10a)-(b^2+6b) +16$

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$=(a-5)^2-25-(b+3)^2+9+16$

$=(a-5)^2-(b+3)^2$

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