Manuel and Kristina are reviewing like terms in the problem 3x + 3 - 4x. Manuel said that 3x and 3 are like terms because they both have threes. Kristina said 3x and -4x are like terms because they both have the same variable. Who is correct? Explain.

Answer:

Kristina

Step-by-step explanation:

Kristina is correct because 3x and -4x both have the variable 'x' in common making them like terms.

What is 1,987 rounded to the nearest thousand?

4. 5/16 +6/16
Simplify

PLS HELP DUE SOON WILL MARK BRAINLIEST
A store owner asks each person to write "Yes" or "No" on a slip of paper as
they leave, secretly writing down whether they were happy with their
experience. At the end of the day, the owner selects 12 slips at random and
looks at them. These were the results:
yes, yes, yes, no, yes, no, yes, yes, no, yes, no, yes
Part 1: Estimate the proportion of all shoppers who were haphy with their
experience that day. Enter your response as a decimal.

What is the slope of the line below? Be sure to scroll down first to see all
answer options.
10
10
118
(7.-5)
(14,-7)
A. -2
B. -
00
NIN

2 of 8
An object has a mass of 540 kg and a volume of 6 m3.
Find the density of the object in m3.
kg/m3

Early diagnosis and treatment of malaria are necessary components in the control of malaria. The gold-standard light microscopy test has high sensitivity but is a relatively time-consuming procedure especially during epidemics and in areas of high concentration. A new Cyscope fluorescence microscopy test has been developed and gives results in less than 10 minutes. The test has a specificity of 98.92% and a sensitivity of 95.48%.

Required:
a. What proportion of the people who test positive for Malaria would we expect to actually have the disease?
b. What proportion of people who test positive for Malaria will not have the disease?

Write an expression that is equivalent to 30(x + y + 1)

The television show 50 Minutes has been successful for many years. That show recently had a share of 15, which means, that among the TV sets in use, 15% were tuned to 50 Minutes. An advertiser wants to verify that 15% share value by conducting its own survey, and a pilot survey begins with 15 households have TV sets in use at the time of a 50 Minutes broadcast.

Required:
a. Find the probability that none of the households are tuned to Lindsay and Tobias. (Round to three decimal places as needed)
b. Find the probability that at least one household is tuned to Lindsay and Tobias.
c. Find the probability that at most one household is tuned to Lindsay and Tobias.
d. If a most one household is tuned to Linday and Tobias, does it appear that the 15% share value is wrong? Why or wh not?

How many groups of 5 can you make
with the 25 shapes

A particular fruit's weights are normally distributed, with a mean of 372 grams and a standard deviation of 26 grams. If you pick 36 fruit at random, what is the probability that their mean weight will be between 365 grams and 380 grams

Choose the statement that is always true.
A. Two rectangles are similar.
B. Two similar polygons are congruent.
C. Two congruent triangles are similar.
D. Two acute triangles are similar.

32 + 2a= 6a solve for a and show the steps

First one to answer gets BRAINLIEST no cap look at the picture.

ANSWER FAST!! All of the following angle pairs are ALWAYS congruent when a transversal passes through 2 parallel lines EXCEPT:

Adjacent angles

Alternate Interior Angles

Alternate Exterior Angles

Corresponding Angles

Find the value of x. ​

Georgia brought a snow cone shaped like the cone below what is the height of the snow cone

Mrs Sogiba is catering for her son's birthday party. She has invited some of
her son's friends to theparty. The number of friends is a compositemultiple of her
son's age on his birthday. She has baked 48 cup cakes and each childwill receive
exactly the same number of cupcakes. Use your knowledge of factors and multiples
to find out how old her son will be on this birthday.
​

Select the correct answer from each drop-down menu.


A camp director developed the function m(c) = 12c + 80 to model the total cost of taking c campers on a field trip to the movies.


In the camp director’s function, the number of campers is the _______ variable and the total cost of the trip _________


1. ( independent, dependent )

2. ( changes by a constant factor per camper, Changes by a constant amount per camper )

.

Zynga and Walmart which balance sheet items does the two have in common
​

Please help!!!!!!!!!!!!!!!!!!!!!!

Austin buys $10 worth of food for his dog each week. There are 52 weeks in a year.
How much is Austin paying for food for his dog in a year?
Which proportion could be used to solve this problem?

I need help finding the area and perimeter to this question. Pls help!! Thank you!

I need help I'll give out 40 points quickly ​

What is the mean of the data set?

Enter your answer as a decimal in the box. Round to the nearest tenth.

mean =

A design engineer wants to construct a sample mean chart for controlling the service life of a halogen headlamp his company produces. He knows from numerous previous samples that this service life is normally distributed with a mean of 500 hours and a standard deviation of 20 hours. On three recent production batches, he tested service life on random samples of four headlamps, with these results.

Sample Service Life (hours)
1 495 500 505 500
2 525 515 505 515
3 470 480 460 470

1. What is the sample mean service life for sample 2?

a. 460 hours
b. 495 hours
c. 515 hours
d. 525 hours

2. What is the mean of the sampling distribution of sample means for whenever service life is in control?

a. 250 hours
b. 470 hours
c. 495 hours
d. 500 hours
e. 515 hours

4. There are 4 white socks, 6
black socks, 3 blue socks, and
2 red socks. What is the ratio
of blue socks to all socks in
simplest form?

How do I do this please help​

what is 4x + 8 = 10 ​

Write the equation: a number increased by 4 is 10

Just checking my work I think it’s 4+x=10

I’m not sure lol

Right answer gets brainiest!

(10y + 3) - (2y - 2)