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Nata [24]
4 years ago
7

Help with number 4 please?

Mathematics
2 answers:
LekaFEV [45]4 years ago
5 0
10 because 7 x 3 = 21 and 7 + 3 = 10 so your answer is 10
Elodia [21]4 years ago
5 0
The only factors of 21 are: 1 and 21 or 3 and 7.

Since the two number mentioned are single digits, the numbers being used must be 3 and 7.

To get the sum, just add them together!
3 + 7 = 10

The answer to your problem is 10.

Hope this helps!!
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Write (2x)4 without exponents
natka813 [3]

Answer:

16x

Step-by-step explanation:

2*2*2*2

7 0
4 years ago
Catherine Chao, Director of Marketing Research, needs a sample of households to participate in the testing of a new toothpaste p
sleet_krkn [62]

Answer:

Convenience sampling.

Step-by-step explanation:

In Statistics, sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.

There are various types of sampling used by researchers and these are;

1. Random sampling.

2. Systematic sampling.

3. Stratified sampling.

4. Cluster sampling.

5. Quota sampling.

6. Convenience (opportunity) sampling.

Convenience sample can be defined as a sampling technique in which the representatives to be used are easily accessible. For example, a researcher using a social media poll such as Twitter polls.

In this scenario, Catherine Chao, Director of Marketing Research, chooses thirty-six of her closest friends to participate in the testing of a new toothpaste package. Thus, Catherine's sample is a convenience sampling.

4 0
3 years ago
The
RSB [31]

Answer:

<h2>11.34 units²</h2>

Step-by-step explanation:

Area of a sector is expressed as \frac{\theta}{360^{0} }*\pi  r^{2}

Before we can get the area of the circle, we need to find its radius. The radius of the circle can be derived from the equation of the circle given.

(x+3.5)^{2} + (y-2.82)^{2} =25

The general form of equation of a circle is given as (x-a)^{2} + (y-b)^{2} =r^{2} where r is the radius of the circle. Comparing the general equation to the given equation to get the radius r;

r^{2} = 25\\ r = \sqrt{25}\\ r =5

The radius of the circle is 5

Given the angle subtended by the sector of the circle to be 52°,

Area of the sector = \frac{52}{360^{0} }*\pi  *5^{2}

= \frac{52}{360^{0} }*25\pi\\= 0.144 *25 \pi

= 0.144 * 25(3.14)\\= 0.144*78.5\\= 11.34units^{2}

This gives the required area of the sector to nearest hundredth

5 0
3 years ago
Rachel has a coupon for 15% off her total lunch bill before tax.if t. represents the total cost of her lunch items before tax, w
finlep [7]

For this case we have the following variable:

  • <em>t: total cost of the account before the discount </em>

The total discount percentage is 15%.

For this you must write the amount that is saved by the coupon.

We have then:

\frac {15} {100} t

Rewriting the expression we have:

0.15t

Answer:

The expression that represents the saving of the coupon is:

0.15t

8 0
3 years ago
What’s the definition of prime
anzhelika [568]

prime1

/prīm/

Learn to pronounce

See definitions in:

All

Mathematics

Religion

Printing

Fencing

Weapons

Building

Mechanics

Motoring

Biochemistry

adjective

1.

of first importance; main.

"her prime concern is the well-being of the patient"

Similar:

main

chief

key

primary

central

principal

foremost

first

most important

paramount

major

dominant

supreme

overriding

cardinal

preeminent

ultimate

number-one

fundamental

basic

essential

elemental

vital

Opposite:

secondary

subordinate

2.

of the best possible quality; excellent.

"prime cuts of meat"

Similar:

top-quality

highest quality

top

top-tier

best

first-class

first-rate

high-grade

grade A

superior

supreme

flawless

choice

select

finest

superlative

peak

optimal

model

excellent

marvelous

magnificent

superb

fine

wonderful

exceptional

formidable

top of the range

top of the line

tip-top

A1

stellar

top-notch

Opposite:

inferior

noun

1.

a state or time of greatest strength, vigor, or success in a person's life.

"you're in the prime of life"

Similar:

heyday

best days/years

day

time

prime of one's life

maturity

youth

springtime

salad days

bloom

flowering

full flowering

perfection

peak

pinnacle

height

high point/spot

zenith

ascendancy

2.

CHRISTIAN CHURCH

a service forming part of the Divine Office, traditionally said (or chanted) at the first hour of the day (i.e., 6 a.m.), but now little used.

5 0
3 years ago
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