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Sloan [31]
3 years ago
7

I need help with this question

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0

Step-by-step explanation:

Angle formed at the circumference of the circle is half of the angle formed at the center of the same circle.

Hence,

m\angle ADC =  \frac{1}{2} \times  m\angle ABC \\  \\  \therefore \: m\angle ADC =  \frac{1}{2} \times  40 \degree \\  \\ \therefore \:m\angle ADC =  20 \degree  \\  \\

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Solve each system of linear or non-linear equations. Show all work!!<br> 3x - 4y = 13<br> 2x + y = 5
OLga [1]
Answer: See below

Explanation:

3x - 4y = 13 (1)
2x + y = 5 (2)
——————
3x - 4y = 13
4(2x + y = 5) (2) times 4
——————-
3x - 4y = 13
8x + 4y = 20
——————-
11x = 33
x = 33/11
x = 3

Plug x = 3 in (2):

2(3) + y = 5
6 + y = 5
y = 5-6
y = -1

Thus, x = 3 and y = -1
6 0
3 years ago
A high school basketball coach wants to see whether there is a linear relationship between player height, x , and the number of
gladu [14]

Answer:

E

Step-by-step explanation:

Since 0 is in confidence interval, and negative and positive values are also, we are 96% confident in all possible answers in this interval so since true slope could be negative or positive in our interval, we cannot determine it

6 0
3 years ago
Solve for x. Enter the solutions from least to greatest. Round to two decimal places. (x+7)^2 - 11 = 0
pshichka [43]

There is x+7 in the match
3 0
3 years ago
Simplify the difference. (4w^2 – 4w – 8) – (2w^2 + 3w – 6)
Blababa [14]

Answer:

  2w^2 -7w-2

Step-by-step explanation:

(4w^2 – 4w – 8) – (2w^2 + 3w – 6)

Distribute the minus sign

(4w^2 – 4w – 8) – 2w^2 - 3w + 6

I like to line them up vertically

  4w^2 – 4w – 8

– 2w^2 - 3w + 6

-----------------------------

  2w^2 -7w-2

8 0
3 years ago
Read 2 more answers
Will give Brainliest! What is the simplified form of the seventh root of x to the fifth power times the seventh root of x to the
jekas [21]

Answer:

  2) x times the seventh root of x cubed

Step-by-step explanation:

  \displaystyle\sqrt[7]{x^5}\cdot\sqrt[7]{x^5}=\sqrt[7]{x^{5+5}}\\\\=\sqrt[7]{x^{7+3}}=\sqrt[7]{x^7}\cdot\sqrt[7]{x^3}\\\\=x\sqrt[7]{x^3}

4 0
3 years ago
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