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3 years ago

What’s the sum of the number k and the number before it and the number after it?

Mathematics

1 answer:

Katen [24]3 years ago

4 0

Answer:

n+k=k+n=

n= k+n

n=k+n

Is that what your looking for? if it wrong I'm very sorry, and hav a great weekend

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Tristan is comparing two number patterns based on the information below.

ivanzaharov [21]

Answer:

Pattern B gets larger fast since 4 is greater than 3.

explanation:
Pattern A is ; 1, 4, 7, 10, 13

Pattern B: 1, 5, 9, 13, 17

as u can see pattern b goes up faster

8 0

3 years ago

Please help<br><br>Point____is plotted at -4/5

musickatia [10]

Answer:

Step-by-step explanation:

-4/5 is -0.8, which is at point C

plz brainliestt

8 0

3 years ago

Read 2 more answers

Evaluate the expression when x=3 , y=−4 , and z=−6.<br> z−2x/y

hichkok12 [17]

Answer:

9/2

distribute the value of x,y, and z, on the given questions, and then you do multiplication, next addition, lastly lowest term.

6 0

3 years ago

State whether the triangles are similar. If so, write a similarity statement and the postulate or theorem you used.

never [62]

Answer:

Triangles ABC and MNO are similar by SSS

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional

In this problem

If this problem the corresponding sides are

AB and MN

BC and NO

AC and MO

Verify if the corresponding sides are proportional

$\frac{AB}{MN}=\frac{BC}{NO}=\frac{AC}{MO}$

substitute the given values

$\frac{5}{7.5}=\frac{5}{7.5}=\frac{8}{12}$

$0.67=0.67=0.67$ ----- is true

When two triangles have corresponding sides with identical ratios , the triangles are similar by SSS Similarity

therefore

Triangles ABC and MNO are similar by SSS

8 0

3 years ago

7. A number of minor automobile accidents occur at various high-risk intersections in Teton County despite traffic lights. The T

Anit [1.1K]

Answer:

Modification has not reduced the number of accidents.

Step-by-step explanation:

$H_0: \mu\geq0\\H_a:\mu$

A B C D E F G H

Before modification 5 7 6 4 8 9 8 10

After modification 3 7 7 0 4 6 8 2

Difference -2 0 1 -4 -4 -3 0 -8

Mean of differences $M_d = \frac{sum}{8}=\frac{2+0-1+4+4+3-0+8}{8}=2.5$

Standard deviation of differences = $\sqrt{\frac{\sum(x-\bar{x})^2}{n}}=2.9277$

Formula of paired t test :

$t=\frac{M_d}{\frac{s}{\sqrt{n}}}\\t=\frac{2.5}{\frac{2.9277}{\sqrt{8}}}\\t = 2.4152$

Df = n-1 = 8-1 =7

$t critical = t_{(df, \alpha)}=t_{7,0.01}=2.998$

t critical> t calculated

So, We failed to reject null hypothesis

Hence modification has not reduced the number of accidents.

6 0

3 years ago