2 years ago

Point D is the in center of triangle ABC. Write an expression for the length x in terms of the three side lengths AB,

Mathematics

1 answer:

KiRa [710]2 years ago

6 0

Answer:

$x = \frac{2(A_T) }{(AB) + (AC) + (BC)}$

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B. There are 7 red, 8 green, and 6 blue marbles in the bag. Kate is going to

MrRa [10]

Answer:

Probability of event

0.34

Step-by-step explanation:

6 0

3 years ago

Point A (-8, 7) and Point B (6,-9) form a line segment on a coordinate plane. What is the midpoint of line segment AB

BartSMP [9]

Answer:

-1,-1

Step-by-step explanation:

it is the midpint (-1,-1)

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3 years ago

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Enter an algebraic expression to model the given context. Give your answer in simplest form.

scoray [572]

Answer: p-0.6p

Step-by-step explanation:

60% = 0.6

Discount is 60% of price p = 0.6p

Original price less discount

p-0.6p

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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

) Sarah donated one-tenth of her salary to an orphanage, one-third of her salary is spent on food, one-fourth of salary on rent

AleksAgata [21]

Answer:

₹ 4000

Step-by-step explanation:

Sarah's salary =₹ 30000

one-tenth of her salary to an orphanage= 1/10*₹ 30000= ₹ 3000
one-third of her salary is spent on food= 1/3*₹ 30000= ₹ 10000
one-fourth of salary on rent and electricity =1/4*₹ 30000= ₹ 7500
one-twentieth of her salary on the telephone= 1/12*₹ 30000= ₹ 2500
donated some amount to the Prime Minister's relief fund = x
She was left with ₹ 3000.

x= ₹ 30000- (₹ 3000+₹ 10000+₹ 7500+₹ 2500+₹ 3000)= ₹ 4000

8 0

3 years ago