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Mnenie [13.5K]
3 years ago
9

PLEASEE HELPP MEE ANNDD SHHOWW YOURR WOORKK :)

Mathematics
2 answers:
LenKa [72]3 years ago
8 0

Answer: No solution (please give me the brainiest this took so long)

Step-by-step explanation:

step 1: distribute

7+5(+3)=8+4(+2)

7+5+15=8+4(+2)

step 2: combine like terms

7+5+15=8+4(+2)

12+15=8+4(+2)

step 3: distribute again

12+15=8+4(+2)

12+15=8+4+8

step 4: combine like terms

12+15=8+4+8

12+15=12+8

step 5: subtract 15 from both sides of the equation

12+15=12+8

12+15−15=12+8−15

step 6: simplify

subtract the numbers

12+15−15=12+8−15

12=12+8−15

subtract the numbers

12=12+8−15

12=12−7

step 7: subtract 12a from both sides of the equation

12=12−7

12−12=12−7−12

step 8: simplify

combine like terms

12−12=12−7−12

0=12−7−12

combine like terms

0=12−7−12

0=−7

The input is a contradiction: it has no solutions

Vilka [71]3 years ago
5 0

D its aswer

Step-by-step explanation:

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How do you add vectors? Add the vector <3,4> to the vector that goes 7 units at an angle of 2π/3.
telo118 [61]

The sum of two vectors is (- 0.5, 10.1)

<u>Explanation:</u>

To add two vectors, add the corresponding components.

Let u =⟨u1,u2⟩ and v =⟨v1,v2⟩ be two vectors.

Then, the sum of u and v is the vector

u +v =⟨u1+v1, u2+v2⟩

(b)

Two vectors = ( 3, 4 )

angle 2π/3 = 120°

In x axis, the vector is = 7 cos 120°

                                    = 7 X -\frac{1}{2} \\\\=- \frac{7}{2}

In y axis, the vector is = 7 sin 120°

                                   = 7 X 0.866

                                   = 6.062

The second vectors are ( -3.5, 6.062)

Sum of two vectors = [( 3 + (-3.5) ), (4 + 6.062)]

                               = (- 0.5, 10.1)

8 0
3 years ago
HailyDenney2 I need your assistance please!
Marina86 [1]

Answer:

x = 83 degrees

Step-by-step explanation:

35 + 28 = 63

63 + 34 = 97

180 - 97 = 83

6 0
3 years ago
Kathy Cole deposited $875 in a savings plan with her credit union. The credit union savings plan pays 2.5% interest compounded s
ikadub [295]

Answer:

your answer is going to be 2170

Step-by-step explanation:

7 0
3 years ago
(CO 3) Sixty-five percent of employees make judgements about their co-workers based on the cleanliness of their desk. You random
Gekata [30.6K]

Answer:

The 0 and 1 outcomes would be considered unusual.

Step-by-step explanation:

We can define as usual outcomes, the ones that fall between \bar{x}\pm 3s.

According to a binomial distribution, s value is

s=\sqrt{n*p*(1-p)}\\s=\sqrt{8*0.65*(1-0.65)}\\s=\sqrt{1.82}=1.35

The expected value out of a 8 people sample is

\bar{x}=p*n=0.65*8=5.2\\

Then, our interval of usual values lies between

\bar{x}- 3s\leq x \leq \bar{x} +3s\\\\5.20-3*1.35\leq x \leq 5.20+3*1.35\\1.15\leq x \leq 9.25

We can conclude that 0 and 1 (the results that lie outside of the interval) are unusual.

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=x2%20%3D%2017" id="TexFormula1" title="x2 = 17" alt="x2 = 17" align="absmiddle" class="latex-f
eduard

Step-by-step explanation:

you solve by using sqaure roots. hope this helps

5 0
4 years ago
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