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2 years ago

In the expression (44 ÷ 4 + 10) - 20 , with which operation should we start?

2 answers:

4 0

You have to do whats in the parentheses from left to right then subtract the answer you get by 20

(9x10) - (30+30)
90 - 60 = 30

8 x (12+5) -7^2
17
17-49
18 x -32

= -576.

You have to use pemdas for your check off
P=parentheses
E=exponet
M=multiplication
D=division
A=add
S=subtrabt

HOPE IM CORRECT

SVETLANKA909090 [29]2 years ago

3 0

Answer:

Step-by-step explanation:

44 divide by 4 is 11 plus 10 is 21 -20 is 1

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Evaluate t Divided 3/4 for T equal 9 3/4

Molodets [167]

T / 3/4 ; t = 9 3/4

9 3/4 / 3/4

9 3/4 = 39/4

39/4 / 3/4
39/4 x 4/3
39 x 4 = 156
4 x 3 = 12
156/12 / 4/4 = 39/3 = 13

7 0

2 years ago

Find the general solution to 3y′′+12y=0. Give your answer as y=... . In your answer, use c1 and c2 to denote arbitrary constants

lozanna [386]

Answer:

$y(x)=c_1e^{2ix}+c_2e^{-2ix}$

Step-by-step explanation:

You have the following differential equation:

$3y''+12y=0$ (1)

In order to find the solution to the equation, you can use the method of the characteristic polynomial.

The characteristic polynomial of the given differential equation is:

$3m^2+12=0\\\\m^2=-\frac{12}{3}=-4\\\\m_{1,2}=\pm2\sqrt{-1}=\pm2i$

The solution of the differential equation is:

$y(x)=c_1e^{m_1x}+c_2e^{m_2x}$ (2)

where m1 and m2 are the roots of the characteristic polynomial.

You replace the values obtained for m1 and m2 in the equation (2). Then, the solution to the differential equation is:

$y(x)=c_1e^{2ix}+c_2e^{-2ix}$

4 0

3 years ago

Which trip could be modeled by the expression |-6| + |8|?

olga2289 [7]

| -6 | + |8| = 6 + 8 = 14 spaces...so thats gym to school

6 0

3 years ago

9-c=-13<br> What’s the answer

trapecia [35]

First you do -13+9. That equals -4.
Then bring down -c=-4 because there is a 1 in front of the c so -1c.
Next divide both sides by -1. The -c side cancels out so then your left with -4/-1.
That equals positive 4.
C=4
That’s ur answer.

7 0

2 years ago

The quadrilateral shown is a parallelogram. What is the measure of DC?

Schach [20]

Answer:

B) 12

Step-by-step explanation:

Opposite sides are congruent

6 0

2 years ago