4 years ago

What is the answer + work to 10+3(2v-3)

Mathematics

2 answers:

arlik [135]4 years ago

6 0

10+3(2v-3)

10+6v-9

1+6v

HOPE THIS HELPS!!!!!!!!!!

IRISSAK [1]4 years ago

5 0

Alright so because there are no brackets around the 10+3 then your coefficient on the brackets is 3

so times everything inside your brackets by 3

3 x 2v=6v
-3 x 3=-9

10-9+6v now simplify

6v+1 DONE!

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The sum of two segments are 75 cm, and one the segments are four times the other. Calculate the measurement of each segment

iVinArrow [24]

The length of one segment is 15 cm and other segment is 60 cm

Step-by-step explanation:

Let x be the length of one segment and y be the length of other segment

Then according to given statement

x+y=75 Eqn 1

And

one the segments are four times the other

x=4y Eqn 2

$Putting\ x=4y\ in\ equation\ 1$

$4y+y=75\\5y=75\\Dividing\ both\ sides\ by\ 5\\\frac{5y}{5}=\frac{75}{5}\\y=15\\Putting\ y=15\ in\ eqn\ 2\\x=4(15)\\x=60$

Hence,

The length of one segment is 15 cm and other segment is 60 cm

Keywords: Linear Equation, Variables

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3 years ago

Simplify (1 − cos x)(1 + cos x). (2 points)

Vadim26 [7]

Answer:

sin²x

Step-by-step explanation:

we have

(1 − cos x)(1 + cos x)=1-cos²x

Remember that

sin²x+cos²x=1 ------> i-cos²x=sin²x

therefore

(1 − cos x)(1 + cos x)=sin²x

4 0

4 years ago

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Write 6(7+5)+3=75 using the distributive property, without parentheses.

Sindrei [870]

6*7+6*5+3=75
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3 0

3 years ago

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SOVA2 [1]

I think the correct answer is D. Or if not is B.

7 0

3 years ago

The square root of four more than three times a number is seven. Find the number.

faltersainse [42]

Answer:

Yup the answer is 15!

Step-by-step explanation:

(3x + 4)^(1/2) = 7

3x + 4 = 49

3x = 45

x = 15

5 0

3 years ago

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