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3 years ago

Is the number 123 Prime or composite?

2 answers:

ozzi3 years ago

4 0

The number 123 is a composite number. The factors of 123 are: 1, 3, 41, and 123. This means each of those numbers can divide 123 evenly.

salantis [7]3 years ago

3 0

Answer: it’s a composite

Step-by-step explanation:

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a rectangle has a hight to width ratio of 3:4.5 Give two examples of dimensions for rectangle that could be scaled versions of t

Free_Kalibri [48]

Answer:

vb n bf dgmhumrynwtfvt

Step-by-step explanation:

vb hgetyhrtewr34y4j4htredwed5g

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3 years ago

Which answer describes the graph of the system of equations?

djyliett [7]

Answer:

D) the lines coincide

Step-by-step explanation:

1. y = 4 - x

2. 2y = 8 - 2x

divide eq2 by 2:

y = 4 - x

eq 1 and 2 are identical

8 0

4 years ago

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How do you find the slope of the points: (19,-16),(-7,-15)?

nirvana33 [79]

Answer:

$\Huge\boxed{\mathsf{\frac{1}{26} }}$

Step-by-step explanation:

<em><u>SLOPE FORMULA:</u></em>

$\longrightarrow \displaystyle \mathsf{\frac{Y_2-Y_1}{X_2-X_1} }}$

Y₂=(-15)

Y₁=(-16)

X₂=(-7)

X₁=19

Solve.

$\displaystyle \mathsf{\frac{(-15)-(-16)}{(-7)-19}=\frac{(-15)+16}{(-7)-19}=\frac{1}{-26}=\boxed{\mathsf{\frac{1}{26}} } }}}}$

So, the slope is 1/26.

8 0

4 years ago

A set of bookshelves rests on a hard floor surface on four legs, each having a cross-sectional dimension of 3.0×4.1cm in contact

tatiyna

Answer:

$5.22\cdot 10^5 Pa$

Step-by-step explanation:

The pressure exerted by an object is given by:

$p=\frac{F}{A}$

where

F is the magnitude of the force

A is the area of the surface perpendicular to the force

In this problem, the force is the weight of the books + the shelf, which is given by

$F=mg$

where

m = 262 kg is the total mass

$g=9.8 m/s^2$ is the acceleration of gravity

Substituting,

$F=(262)(9.8)=2568 N$

The area of the four legs is:

$A=4(3.0 cm\cdot 4.1 cm)=4(12.3 cm^2)=49.2 cm^2 = 49.2\cdot 10^{-4} m^2$

Therefore, the pressure exerted on them is:

$p=\frac{F}{A}=\frac{2568}{49.2\cdot 10^{-4}}=5.22\cdot 10^5 Pa$

7 0

3 years ago

A patient is given a 50 mg dose of medicine. The medicine's effectiveness decreases every hour at a constant rate of 40%. What i

Assoli18 [71]

It should be noted that only 60% of the medicine of the previous hour is left n the patient's system every hour. Thus, the model of the scenario is,

D = 50 mg (0.6^n)

where D is the dosage at any hour n.

Using the model above with n equal to 2. D becomes 18. Therefore, only 18 mg is left in the patient's system after 2 hours.

8 0

4 years ago

Read 2 more answers