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2 years ago

In the figure below, points A, B, and C are on a straight line. What is the measure of angle DBE

Mathematics

2 answers:

larisa86 [58]2 years ago

6 0

Answer:

<DBE = 120

Step-by-step explanation:

A straight angle (ABC) has 180 degrees.

20 + 40 + x = 180 Combine the left

60 + x = 180 Subtract 60 from both sides.

60-60 + x = 180 - 60

x = 120

Setler79 [48]2 years ago

4 0

Answer:

The answer is J. 120

Step-by-step explanation:

hope it helps

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lesantik [10]

I think it is the e first one A because if the graph shows that it’s in one so I think the if you but it in one I think that the gragh also has to show 9

6 0

3 years ago

The sum of two numbers is -7. Five times the first number plus the second number is 1. What are the numbers?

arlik [135]

Answer:

Step-by-step explanation:

Well you only want the two equations so here they are.

x + y = -7

5*x + y = 1

I should give you the answer.

x = 2

y = -9 I think. These answers were done in my head.

4 0

3 years ago

A store charges $32 to print 80 greeting cards and $0.33 for each additional greeting card

Crazy boy [7]

32 + 0.33c = p

where c is every card more than 80 (so if you want 82 card c = 2)
and p is the total price

8 0

4 years ago

Read 2 more answers

A math test is worth 100 points and has 30 problems.

mr_godi [17]

Answer:

I think 15

Step-by-step explanation:

15+15=30, so both 3 or 4 point questions have 15 problems each, hope this helped

3 0

3 years ago

What is the factored form of the expression?<br><br> d^2 = 36d + 324

Veseljchak [2.6K]

Answer:

$(x-43.45)(x+7.45)=0$

Step-by-step explanation:

We have the quadratic equation $d^{2}=36d+324$ i.e. $d^{2}-36d-324=0$

As, the roots of the quadratic equation $ax^{2}+bx+c=0$ are given by $x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$ .

So, from the given equation, we have,

a = 1, b = -36 , c = -324.

Substituting the values in $x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$ , we get,

$x=\frac{36\pm \sqrt{(-36)^{2}-4\times 1\times (-324)}}{2\times 1}$

i.e. $x=\frac{36\pm \sqrt{1296+1296}}{2}$

i.e. $x=\frac{36\pm \sqrt{2592}}{2}$

i.e. $x=\frac{36\pm 50.9}{2}$

i.e. $x=\frac{36+50.9}{2}$ and $x=\frac{36-50.9}{2}$

i.e. $x=\frac{86.9}{2}$ and $x=\frac{-14.9}{2}$

i.e. x = 43.45 and x = -7.45

Thus, the roots of the equation are 43.45 and -7.45.

Hence, the factored form of the given expression will be $(x-43.45)(x+7.45)=0$

3 0

3 years ago