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4 years ago

Which numbers are rational numbers? Select all that apply.

Mathematics

2 answers:

mojhsa [17]4 years ago

8 0

A
C
E

.are the correct answer

Mumz [18]4 years ago

5 0

The answers are
e a and c. Any number that can be divided or multiple

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Simplify this expression : 2(y+z)

kap26 [50]

Answer:2y + 2z

Step-by-step explanation: you need to multiply the number outside of the parenthesis with the one inside like.

6 0

3 years ago

Read 2 more answers

A student took a system of equations, multiplied the first equation by and the second equation by , then added the results toget

Ierofanga [76]

Answer:

option A

-2x + 4y = 4

-3x + 6y = 6

Step-by-step explanation:

In option A, if the student multiply the first equation by 3 and the second equation by -2, then the equations become

-6x+12y = 12 and

6x-12y =-12

If she adds both equations, she will get 0 = 0

This means that the system has infinite number of solutions.

Hence, the student could have started with equations -2x + 4y = 4 and -3x + 6y = 6.

3 0

4 years ago

Can someone explain me this please

AfilCa [17]

$\purple{\maltese}\large\underline{\underline{\red{\sf\:\: Given :}}} \\$

Mass (M) of space shuttle = 1.0 × 105 kg.
Altitude (r) = 200.0 km

$\\\purple{\maltese}\large\underline{\underline{\red{\sf\:\: To \: \: Find :}}} \\$

The force of gravity that the space shuttle experiences = ?

$\\\purple{\maltese}\large\underline{\underline{\red{\sf\:\: Solution :}}} \\ \\$

$\purple{\maltese}\large\underline{\underline{\sf\:\: using \: formula :}} \\ \\$

$\bigstar \: \underline{ \boxed{\sf { \pink{g = \frac{G \: M}{{r }^{2} }}}}} \\ \\$

$\\ ❒\: \: \underline{\textbf {Putting values \: in \: the \: \: given \: formula :}} \\$

$\sf \implies \: g = \frac{G \: M}{{r }^{2} } \\$

$\sf \implies \: g = \frac{6.67×10^{-11} × 1.0×10^5}{(2×10^5)^{2} } \\$

$\sf \implies \: g = \frac{6.67×10^{-6}}{4×10^{10}}\\$

$\sf \implies \: g = \frac{6.67×10^{-6}}{4×10^{10}} \\$

$\sf \implies \: g =1.6675×10^{-6-10}\\$

$\sf \implies \: g =1.6675×10^{-16}\: Newton\\\\$

$\:\:\:\:\:\:\:\qquad\rule{150pt}{2pt} \\\\$

Henceforth, the force of gravity experienced by the shuttle is <u>1.6675×10^N</u>

4 0

2 years ago

Find the area of a triangle whose sides are 35 cm, 45 cm and 50 cm.

Morgarella [4.7K]

Answer:To find out the Area of a scalene triangle whose three sides are given, first find out the half perimeter

s = (a+b+c)/2

where a, b, and c are the length of the three sides of a triangle

s = (35 + 45 + 50) / 2

= 130 / 2

= 65 cm

Area of scalene triangle is given by

A = sqrt (s (s - a) (s - b) (s - c))

= sqrt (65 * (65 - 35) ( 65 - 45) (65 - 50))

= sqrt (65 * 30 * 20 * 15)

= sqrt (585000)

= 764.853 sq cm

Step-by-step explanation:

4 0

2 years ago

Solve for x: 3x − 2 > 5x + 10.

Assoli18 [71]

Answer: hopefully this is what you need

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Inequality form:

X < -6

Interval Notation:

(-♾, -6)

8 0

3 years ago