All categories

3 years ago

+8+-9+-2 on a number line

Mathematics

1 answer:

Zarrin [17]3 years ago

3 0

Hi there! I can help you! 8 + (-9) + (-2). When adding negative integers, you have to subtract. 8 - 9 is -1 and -1 - 2 is -3. You would have to start at 8 and go to the left 11 times to land on -3. The sum to the problem is -3.

You might be interested in

Which type of construction is used to construct a triangles point of balance?

lisov135 [29]

I'm pretty sure its GSP.

4 0

3 years ago

Tyrell's SAT math score was in the 64th percentile. If all SAT math scores are normally distributed with a mean of 500 and a sta

jarptica [38.1K]

Answer:

$P(x < 535.8) = 0.64$

$P_{64} = 535.8$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 500

Standard Deviation, σ = 100

We are given that the distribution of SAT score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.64

P(X<x) = 0.64

$P( X < x) = P( z < \displaystyle\frac{x - 500}{10})=0.64$

Calculation the value from standard normal z table, we have, $p(z$

$\displaystyle\frac{x - 500}{100} = 0.358\\x = 535.8$

$P(x < 535.8) = 0.64$

$P_{64} = 535.8$

8 0

3 years ago

Pls help asap or else my parents will kill me eeeeeasy and explian for brainleest .

gtnhenbr [62]

Answer:

Step-by-step explanation:

I'm assuming that your "70=50x what is xx" actually means "find x if 70-50x = 0" If that's not what you meant, please retype your question.

Dividing both sides by -50 results in -70/50 + x = 0, and adding 70/50 to both sides results in x = 70/50, or 7/5.

Only if my assumptions are correct: x = 7/5.

3 0

3 years ago

The vertex of the graph of y = (x - 1)2 - 5 is

kifflom [539]

The vertex of the graph of y = (x - 1)2 - 5 is (1,-5)

7 0

3 years ago

Read 2 more answers

What is X?<br> Please help!

vodka [1.7K]

Answer:

Step-by-step explanation:

the sum of the angles in a triangle add up to equal 180

180-73-13=94

8 0

2 years ago

Read 2 more answers