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2 years ago

Write the number 7.748 x 10-5 in standard form.

Mathematics

1 answer:

vagabundo [1.1K]2 years ago

4 0

The answer to your question is D!

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Write the expression in terms 5×(2+8)

loris [4]

The answer is fifty (50)

7 0

2 years ago

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Can someone please help me solve these two problems and explain them to me? About the one with proportions though... I've always

NeTakaya

Answers:

A) $-\frac{11}{4}$

C) $m_{1}=\frac{Fr^{2}}{G m_{2}}$

Step-by-step explanation:

Part 1:

We have the followig equation:

$\frac{x-1}{3}-\frac{x+4}{5}=\frac{4x-1}{8}$

Calculating the least common multiple (l.c.m) in the denominator in the left side of the equation, being l.c.m=15:

$\frac{5(x-1)-3(x+4)}{15}=\frac{4x-1}{8}$

Solving for the left part of the equation:

$\frac{2x-17}{15}=\frac{4x-1}{8}$

Operating with cross product:

$8(2x-17)=15(4x-1)$

Applying the distributive property:

$16x-136=60x-15$

Isolating $x$ :

$x=-\frac{121}{44}$

Dividing numerator and denominator by 11:

$x=-\frac{11}{4}$ Hence, the correct option is A

Part 2:

We have the followig equation:

$F=\frac{G m_{1} m_{2}}{r^{2}}$

Operating with cross product:

$Fr^{2}=G m_{1} m_{2}$

Isolating $m_{1}$ :

$m_{1}=\frac{Fr^{2}}{G m_{2}}$ Hence, the correct option is C

5 0

3 years ago

Find the value of X (7x-1) (6x-1)

Aleks04 [339]

Answer:

x=14

Step-by-step explanation:

(7x - 1)° + (6x - 1)° = 180°

(13x - 2)° = 180°

13x = 182°

x = 182°/13

x = 14

7 0

2 years ago

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Answer both questions please

vredina [299]

Answer:

I cannot see the x values so I cannot help with part D, but part C is y=3.50x+9.50

Step-by-step explanation:

the question states there is a fee of 9.50 for shipping costs, which is constant. this means it will be the y intercept in addition, since each shirt costs 3.50 each, the equation is y=3.50x+9.50

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2 years ago

How do you do Y=6x + 8 when x= -3

valentina_108 [34]

Answer:-10

Step-by-step explanation:

6* -3 is -18 then add 8 to get y= -10

5 0

3 years ago

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