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3 years ago

10

In the activity graph below, where time is measured in hours, what is the minimum time to ﬁnish the project?

1 answer:

Andrew [12]3 years ago

7 0

I believe it is D.
On the very bottom if you just go straight across then it would be 7+3+8 which is 18.

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Help on this question explain my answer please!

Tresset [83]

0.12 x 70 = 8.4

12% of 70 is 8.4

5 0

3 years ago

Apolline is mowing lawns for a summer job. For every mowing job, she charges an initial fee plus a constant fee for each hour of

OLEGan [10]

Answer:

Base Fee = $7

Extra charges = $7

Step-by-step explanation:

Represent the base charge with x and the additiional charges with y.

For the 5 hours job, we have:

$42 = x + 5y$

For the 3 hour job

$28 = x + 3y$

Solving for x and y;

$42 = x + 5y$

$28 = x + 3y$

Subtract the second equation from the first

$42 - 28 = x - x + 5y - 3y$

$14 = 2y$

Solve for y

$y = 14/2$

$y = 7$

Substitute 7 for y n the first equation

$42 = x + 5y$

$42 = x + 5 * 7$

$42 = x + 35$

$x = 42 - 35$

$x = 7$

4 0

3 years ago

1. Which function families can be described by the characteristic

BartSMP [9]

Is a supposed to be the answer? Is there any other options to choose from the no given list?

3 0

3 years ago

PLEASE SOLVE AND CHECK. SHOW COMPLETE SOLUTION

vivado [14]

Answer:

$t \leq 25$

Step-by-step explanation:

$(\sqrt{2t+1}) ^{2} + (\sqrt{2t-1}) ^{2} \leq 10^{2}$

=> 2t +1 + 2t -1 $\leq$ 100

=> 4t $\leq$ 100

=> t $\leq$ 100/4

=> t $\leq$ 25

3 0

3 years ago

Are the points A,M, and I coplanar? yes or no?

lys-0071 [83]

Answer:

Yes

Step-by-step explanation:

Three points are coplanar if they lie on the same plane.

Points A and M lie on the plane $\tau,$ on the line $l.$ Point I lies on the line which intersects the plane $\tau$ at point V.

Since lines $l$ and IV intersect, there is a plane at which these two lines lie. Name this plane $\alpha.$

Thus, points A, M and I lie on the plane $\alpha,$ so they are coplanar.

5 0

3 years ago