Find the measure of the angle? BD bisects

Answers

Answer 1

Answer: 3 x + 25 = 3.5 x
3.5 x - 3 x = 25
0.5 x = 25
x = 25 : 0.5
x = 50°
m ∠ DBC = 3.5 · 50°
Answer:
m ∠ DBC = 175°

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Elimination using multiplication.
3x-5y=14
2x+4y=2

Answers

3x - 5y = 14
2x + 4y = 2

We multiply the first equation by 2 and the second equation by 3 to obtain:

6x - 10y = 28
6x + 12y = 6

Subtracting the two equations:

-22y = 22
y = -1

Using this in the first equation:
3x - 5(-1) = 14
x = 3

The solution is:
(3 , -1)

Jordans have a rectangular garden. want to build a diagonal pathway across he garden. the length of pathway is 90 ft. width of garden is 5 times more than 2 times the length of garden. what is length of garden?

Answers

so we see the pythagorean theorem
a^2+b^2=c^2
diagonal=c
width=a or b, pick one
width=a
legnth=b
width is 5 times more than 2 times legnth of garden
w=5(2legnth)
this doesn't make sense since the legnth is normally longer than the width, but we'll stick with that
w=5(2l)
w=10l
a=10b
(10b)^2+b^2=90^2
100b^2+b^2=8100
101b^2=8100
divide by 101
b^2=80.198 aprox 80.2
square root
8.95533
legnth of garden =8.96
to find width subsitue
w=10l
w=89.56

legnth=8.96
width=89.56

P=2l+2w
w=5(2l)
45=10l
4.5=l
---------------
P=2l+2(5(2l))
P=2l+20l
P=22l
P=99

Factor completely 4u^2 + 28u + 49

Answers

$4u^2+28u+49=4u^2+14u+14u+49=2u(u+7)+7(u+7)=\n \n=(u+7)(2u+7)$

Answer: (2u + 7)^2

Step-by-step explanation:

How many solutions exist for the given equation?

1/2(x + 12) = 4x – 1

Answers

$(1)/(2) (x+12)=4x-1$

Multiply both sides by 2 :

$(1)/(2)(x+12)*2 = 4x*2-1*2$

$x+12=8x-2$

$x+12-12=8x-2-12$

$x=8x-14$

Subtract 8 x from both sides:

$x-8x=8x-14-8x$

$-7x=-14$

Divide both sides by -7 :

$(-7x)/(-7) = (-14)/(7)$

$x = (14)/(7)$

$x = 2$

1 solution

hope this helps!

Answer:

B.one

Step-by-step explanation:

there is only one solution to the problem.

A cube has a surface area of 72 in2.Find the surface area of a scaled image with a scale factor of 1.5.

in2

Answers

so assuming scaled down it is
1:1.5 or
2:3
so
72 is the 3 units
divide 72 by 3
72/3=14
14 times 2=28

the surface area=28 in^2

Jasmine is building birdhouses. it takes her 3 1/2 hours to build 4 birdhouses. which of the following is a equivalent rate?a. 14 hours to build 18 birdhouses
b. 28 hours to build 35 birdhouses
c. 7 hours to build 8 birdhouses
d. 21 hours to build 28 birdhouses

plz help quick

Answers

Option C: 7 hours to build 8 house,

Whenever getting work-time related questions, it is needed to focus that as the amount of work done increases, the time needed to complete also increases.

Given that:

3.5 hours of work is needed to build 4 birdhouses.

Thus as we increase the time twice, the number of birdhouses build by the same person Jasmine will be twice as she got doubletime, thus building 2 times 4 i.e. 8 birdhouses.

Thus we have:

Jasmine takes 7 hours of work to build 8 birdhouses.

Therefore we see that Option C: 7 hours to build 8 birdhouses is correct.

Learn more here:

brainly.com/question/3386488

She makes 4 birdhouses in 3. hours. If you double that you get 8 birdhouses in 7 hours. The answer is C. Please put me as brainliest.

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Round 10.065 correct to 1 decimal place

If you divide an inheritance of $45,600.00 among 22 heirs, each heir will receive A. $207.27. B. $2,072.73. C. $2,027.27. D. $2,073.72.

-6=-2+w solve the equation

casey ran a 75 meter race in 10 seconds her distances at certain times during the race are shown in the table . what is the domain for the graph of the function that would model her race[ time in seconds 0 1 2 3 4 5 6 7 8 9 10 : distance in meters 0.0 5.5 12.0 20.0 28.5 36.0 44.0 56.5 64.0 75.0