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11 months ago

4x + 14 HELP MEEEE PLSSSSSA

Mathematics

1 answer:

Dmitry [639]11 months ago

3 0

Answer:

2(2x + 7)

by simplification

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Which expression has a value of 7/12 ? 7/8 + 4 , 1/3 + 1/4 , 6/8 + 1/4 , 2 1/12 + 5 1/12

vazorg [7]

Answer:

$\frac{1}{3} + \frac{1}{4}$

Step-by-step explanation:

We want to find an expression that has a value of

$\frac{7}{12}$

First option:

$\frac{7}{8} + 4 = \frac{7}{8} + \frac{32}{8} = \frac{39}{8} \ne \frac{7}{12}$

Second option:

$\frac{1}{3} + \frac{1}{4} = \frac{4}{12} + \frac{3}{12} = \frac{7}{12}$

Correct option

Third option

$\frac{6}{8} + \frac{1}{4} = \frac{3}{4} + \frac{1}{4} = 1$

Fourth option:

$2 \frac{1}{12} + 5 \frac{1}{12} = \frac{43}{6}$

5 0

2 years ago

The function f is defined by f(x) = x + 3 / 4x - 5 . Find f(x+3).

natali 33 [55]

Answer:

x+6 / 4x-5

Step-by-step explanation:

3 0

2 years ago

Please help work this out

BigorU [14]

Answer:

Area=190.091 cm^2

Step-by-step explanation:

Area = 1/2(Pi x r^2) one-half because it's a semi-circle

Area=1/2(3.14 x 11^2)

11^2=121 so, Area=1/2(3.14 x 121)

Area=1/2(379.94)

Area=189.97 cm^2

adjustment:

Area=1/2(3.142 x 11^2)

Area=1/2(3.142 x 121)

Area=1/2(380.182)

Area=190.091

5 0

2 years ago

HELP BEEN STUCH FOR 30 MIN

Jobisdone [24]

Start by plugging 0 into the equation and see which ones give you 350 back. Those equations are the right ones,

6 0

2 years ago

A project being analyzed by PERT has 38 activities, 16 of which are on the critical path. If the estimated time along the critic

dolphi86 [110]

Answer:

required probability is .3446

Step-by-step explanation:

It is given that most expected time of completion = 90 days

Variance = 25

We know that

$\sigma =\sqrt{Variance}\\\\\sigma =\sqrt{25}\\\sigma =5$

Thus the standard normal deviate is given by

$Z=\frac{X-\bar{X}}{\sigma }$

Applying values we get

$Z=\frac{88-90}{5}\\\\Z=-0.4$

Using the standard table for Z we have probability corresponding to Z = -0.4 equals 0.3446

Thus required probability is .3446

3 0

2 years ago