MATHEMATICS MIDDLE SCHOOL

Karin wants to use the distributive property to find the value of 19 • 42 + 19 • 58 mentally. Which expression can she use?a. 19 x(42 + 58)
b. 19 x(42 x 58)
c. (19 + 19) • (42 + 58)
d. 19 • 19 • (42 + 58)

Answers

Answer 1
Answer: The answer is a. 19 x(42 + 58). In the expression 19 * 42 + 19 * 58, the common factor is 19. So, it can be taken out and the other factor of each binomial can be put into parenthesis. The general form will be: x * a + x * b = x * (a + b) where x is the common factor. In our expression: 19 * 42 + 19 * 58 = 19 * (42 + 58).
Answer 2
Answer:

Answer:

19 x (42 + 58)

Step-by-step explanation:

The common term is 19!

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63POINTS! 1.) Create a scenario that leads to an inequality of the form ax + b > c. You can use any of the inequality symbols (>, ≥, <, ≤) in your inequality. For this step, just write the word problem.2.) Write the inequality and show all work to solve the inequality.3.) Explain what your solution means in the context of the problem.

Answer for a lot of points lolol

Answers

HEYA!!!!


QRS=180°-QRT
=180°-116
=64°

So the answer is C)

Hope it helps you.

:)

QRS is 180 - 116 = 64! The correct answer is C!

Is 800 cm greater than 8 m

Answers

they are the same because there are 100cm in a metre.
No I think they are equal

a clock tower has a circular clock face with a circumference of 48 feet what is the radius f the clock face?

Answers

The radius would be 7.64 feet.

a swimmingnpool is 50 meters long. Jamie swam 60 lengths of the pool in one week. How many kilometers did she swim

Answers

the awnser is either 1050 or 3000 choose witch one is more reasonable for your question

Jamie swam: 3 km

The answer is 3 km because,

50 x 60 = 3,000

As we know 1 km = 1,000 meters.

So3 km would equal 3,000 meters.

That being said, 3 km is the answer!

(08.01 MC)A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts the first 10 people who respond to the advertisement. Which of
following statements true about the sample?
It is not a valid sample because it is only a short study,
It is a valid sample because money is offered to participants.
It is a valid sample because the first 10 people were selected to participate.
It is not a valid sample because it is not a random sample of the population

Answers

Answer:

The correct answer is the last on that’s states: it is not a valid sample because it is not a random sample of the population.

Step-by-step explanation:

When a researcher wants to know about the same thing, he/she has to take a sample from the population.

Example, consider a researcher wants to know how many hours the students study at home in a week, so the researcher has to take the sample from the student population.

Here, he/she gives the advertisement and offers $10 for 10 people. Therefore for anyone can come they might not required for a particular study.

Therefore, the answer is the last one.

Answer:

d

Step-by-step explanation:

A seed company planted a floral mosaic of a national flag. The perimeter of the flag is 500 feet. Determine the flag’s length and width if the length is 70 feet greater than the width.

Answers

Answer:

Width = 90 feet and length = 160 feet

Step-by-step explanation:

Let w = width

Let w + 70 = length

The perimeter would be 2(w) + 2(w + 70) = 2w+ 2w + 140 which must equal 500 feet.

Add the like terms:

4w+140=500; subtract 140 from both sides; 4w = 360; divide both sides by 4 and you get w= 90. If w = 90, then length = 90 + 70 = 160 feet

Let the width be x

length = 70+x

Perimeter =2(l+b)

500=2(70+x+x)

70+2x=250

2x=180

x=90

Width = 90 feet

Length = 70+90=160

HOPE THIS WILL HELP U
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