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3 years ago

What is the value of x to the nearest tenth? a.12.0 b.4.8 c.9.2 d.7.2

Mathematics

1 answer:

Kryger [21]3 years ago

7 0

The answers:
a.12
b.5
c.10
d.8

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Rachel babysits the Michaelson’s kids on Saturdays for 4 hours and is paid $12.50 per hour. On Sundays, she babysits at the Smit

NeTakaya

Answer:

She earns $8.00 more on Sunday

Step-by-step explanation:

Saturday 12.50x4=50.00

Sunday 14.50x4=58.00

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3 years ago

Simplify this expression 5a/11a

barxatty [35]

You could cross cancel the a and your final answer would be 5/11

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3 years ago

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The points (-2, 6) and (2, r) lie on a line with slope 3. Find the missing coordinate r.

sashaice [31]

ANSWER: r=18

EXPLANATION:

6 0

2 years ago

How do you solve this??? Someone help. We just started learning Pythagoras Theorems..

ira [324]

Answer:

It means length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.

Step-by-step explanation:

to solve this...we think that distance from ben to church is x...now a triangle is formed.

length of the hypotenuse is 13cm

${13}^{2} = {8}^{2} + {x}^{2}$

$169 = 64 + {x}^{2}$

$169 - 64 = {x}^{2}$

$105 = {x}^{2}$

$\sqrt{105} = x$

$x = 10.246950766$

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8 0

3 years ago

Determine g(x + a) – g(x) for the following function.<br> g(x) = 5x2 + 2x

dusya [7]

Answer:

$g(x + a) - g(x) = 10ax + 5a^2 + 2a$

Step-by-step explanation:

We are given the function:

$g(x) = 5x^2 + 2x$

And we want to determine:

$\displaystyle g(x+a) - g(x)$

Substitute:

$\displaystyle \begin{aligned}g(x + a) - g(x) &=\left[5(x+a)^2 + 2(x+a)\right] -\left[5x^2+2x\right] \end{aligned}$

And simplify:

$\displaystyle \begin{aligned}g(x + a) - g(x) &=\left[5(x+a)^2 + 2(x+a)\right] -\left[5x^2+2x\right] \\ \\ &= \left(5(x^2 + 2ax + a^2) + (2x + 2a) \right) + \left(-5x^2 - 2x\right) \\ \\ &= \left((5x^2 + 10ax + 5a^2) + (2x + 2a)\right) + \left(-5x^2 - 2x\right) \\ \\ &= (5x^2-5x^2) + (10ax + 2x - 2x) + (5a^2+2a) \\ \\ &= 10ax + 5a^2 + 2a \end{aligned}$

In conclusion:

$g(x + a) - g(x) = 10ax + 5a^2 + 2a$

3 0

2 years ago