1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Margaret [11]
3 years ago
7

Help due today please ​

Mathematics
1 answer:
horsena [70]3 years ago
7 0

Answer:

<em>angle ABD =</em><u><em>55 degree</em></u>

<em>angle BCD= </em><u><em>125 degree</em></u>

Step-by-step explanation:

angle ABD and angle DBC are supplementary angles.

Hence, angle ABD +angle DBC = 180 --equation 1

angle ABD = (2x+15) ---equation 2

angle BCD = (4x+45) ------equation 3

ABD+DBC=180

(2x+15) + ( 4x+45 ) = 180

2x+4x+15+45=180

6x+60=180

6x=180-60

6x=120

x=120/6=20

angle ABD= 2x+15= 2(20) +15

                              =40+15= 55 degree

angle BCD= 4x+45 = 4(20) +45

                                = 80+45= 125 degree

Hence, angle ABD =55 degree

            angle BCD= 125 degree

<em>Hope this helps.</em>

You might be interested in
Help please please - can u
Zarrin [17]

Answer:

ray line line segment

Step-by-step explanation:

8 0
3 years ago
The scale factor from a small triangle ABC to a large triangle XYZ is 5. How many times larger will the perimeter of triangle XY
Ierofanga [76]

Answer:

Answer below :)

Step-by-step explanation:

Hi there!

Question 4 - the answer will be 5. Since the scale factor is 5, we would (hypothetically) multiply the area by 5 to get the new area of XYZ, so area XYZ is 5 times the area of ABC.

Question 5 - A.

First we multiply 45 by 12 to find the amount in inches. This is 540. Now, we divide that by 6 to get 90. This is our scale factor in inches, but the answers only show the scale in feet, so we have to convert. Divide 90 by 12 to get 7.5.

I hope this helps!

4 0
2 years ago
If x^2-13x+42=(x+A)(x+B), then find the value of 3A-B
tigry1 [53]

Answer:

- 11 or - 15

Step-by-step explanation:

Factorise

x² - 13x + 42

Consider the factors of the constant term (+ 42) which sum to give the coefficient of the x- term (- 13)

The factors are - 6 and - 7, since

- 6 × - 7 = + 42 and - 6 - 7 = - 13, thus

x² - 13x + 42 = (x - 6)(x - 7)

compare to (x + A)(x + B)

A = - 6, B = - 7

thus 3A - B = 3(- 6) - (- 7) = - 18 + 7 = - 11

The factors may also be expressed as (x - 7)(x - 6)

with A = - 7 and B = - 6, then

3A - B = 3(- 7) - (- 6) = - 21 + 6 = - 15

5 0
3 years ago
g A random sample of 24 items is drawn from a population whose standard deviation is unknown. The sample mean is x⎯⎯ = 880 and t
Bad White [126]

Answer:

Which is the output of the formula =AND(12>6;6>3;3>9)?

A.

TRUE

B.

FALSE

C.

12

D.

9

Step-by-step explanation:

3 0
3 years ago
a rental car agency charges $210.00 per week plus $0.15 per mile to rent a car. how many miles can you travel in one week for $2
max2010maxim [7]
$291-$210=$81
$81/0.15= 540 miles
I believe the answer is 540 mi.
7 0
3 years ago
Other questions:
  • The circumference of a sphere was measured to be 78 cm with a possible error of 0.5 cm. (a) Use differentials to estimate the ma
    7·1 answer
  • Find the area of the kite.<br><br>area = _<img src="https://tex.z-dn.net/?f=m%5E%7B2%7D" id="TexFormula1" title="m^{2}" alt="m^{
    7·1 answer
  • Solve for x 5x+5x+3=4(2x+1)-2
    9·1 answer
  • What is the 8th term of this geometric sequence? 5, 10, 20, 40,
    12·1 answer
  • Microsoft Excel might be useful when establishing relationships involving vertex-edge graphs.
    7·2 answers
  • PLEASE HELP!!!!! PLEASE
    8·1 answer
  • Kieran mother gets a restaurant bill for $25 he has a coupon for 15% of the acid Discount Supply she had 20% as tip what is the
    8·1 answer
  • Can some one help me its all the points i have :(
    14·1 answer
  • Help please!!! I need help!!!
    12·1 answer
  • Please help me fast this question​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!