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pashok25 [27]
2 years ago
6

Which of the following have both 2 and −5 as solutions?

Mathematics
1 answer:
maxonik [38]2 years ago
4 0

Answer:

Picture pls

Step-by-step explanation:

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Which lines are Vertical Angles, Complementary Angles, and Supplementary Angles?
baherus [9]

Step-by-step explanation:

Vertical Angles: Angles facing each other.

Example: 6 & 7

Complementary Angles: Angles adding up to 90 degrees / making a right angle.

Example: 9 & 10

Supplementary Angles: Angles adding up to 180 degrees / making a straight line.

Example: 7 & 8

7 0
3 years ago
What's the length of AB?​
Nastasia [14]
Use the pythagorean theorem to solve this: a^2 + b^2 = c^2.
You already have a and b which are 3 and 4. Square them up and you will get 9 + 16 = c^2.
Add.
25 = c^2
Lastly, square root both sides.
5 = c
The length of AB is 5.
8 0
2 years ago
The price of a computer was decreased by 30% to £147. What was the price before the decrease?
Sunny_sXe [5.5K]

Answer:

£210

Step-by-step explanation:

A decrease of 30% represents 70% of the original cost.

100% represents the original cost

Divide the price by 70 to find 1% then multiply by 100 for original cost

original cost = \frac{147}{70} × 100 = 2.1 × 100 = £210

4 0
3 years ago
Read 2 more answers
Use the normal distribution of SAT critical reading scores for which the mean is 502 and the standard deviation is 116. Assume t
PSYCHO15rus [73]

Answer:

(a) 93.19%

(b) 267.3

Step-by-step explanation:

The population mean and standard deviation are given as 502 and 116 respectively.

Consider, <em>X</em> be the random variable that shows the SAT critical reading score is normally distributed.

(a) The percent of the SAT verbal scores are less than 675 can be calculated as:

P(X

Thus, the required percentage is 93.19%

(b)

The number of SAT verbal scores that are expected to be greater than 575 can be calculated as:

P(X>575)=P(\frac{x-502}{116}>\frac{575-502}{116}\\P(X>575)=P(Z>\frac{575-502}{116})\\P(X>575)=P(Z>0.6293)\\P(X>575)=0.2673

So,

Out of 1000 randomly selected SAT verbal scores, 1000(0.2673) = 267.3 are expected to have greater than 575.

8 0
2 years ago
Which expression shows how to convert 60 hours to days​
torisob [31]

Answer

60 hours = 2.5 days

Step-by-step explanation:

1 day = 24 hours

2 days = 48 hours

3 days = 72 hours

so 60 hours in = to 2.5 days

hope this helps

7 0
3 years ago
Read 2 more answers
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