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vlada-n [284]
3 years ago
7

Solve the following: -3x + 7(x + 5) = 5x + 38 please explain!

Mathematics
1 answer:
kkurt [141]3 years ago
4 0

Answer: -3

Step-by-step explanation:

-3x+ 7x+ 35= 5x + 38

You solve the distributive property on the left side and set it equal to the right

4x+35= 5x+38

-4x -4x

35= x+38

-38 -38

X=-3

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The volume of the file holder is
V = 8*h*(10 - 2h) = 80h - 16h²
To maximize V, V'(h) = 0.
That is,
80 - 32 h = 0 
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3 years ago
A net for a triangular prism. The bottom face has a length of 8 meters and height of 10 meters. The rectangular side faces have
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Answer:

1.80

2.50

3.12

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Find the area of a sector with a central angle of 140° and a diameter of 9.6 cm. Round to the nearest tenth.
olchik [2.2K]

Answer:

A=28.1\ cm^2

Step-by-step explanation:

The area of a circular sector with a central angle θ and radius r is given by:

\displaystyle A=\frac{1}{2}r^2 \theta

<em>Note</em>: The angle must be in radians.

We need to find both the radius and the angle in radians.

Diameter = 9.6 cm

Radius r=Diameter/2=4.8 cm

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Now we calculate the area:

\displaystyle A=\frac{1}{2}(4.8)^2 2.4435

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8 0
3 years ago
Customers are used to evaluate preliminary product designs. In the past, 95% of highly successful products received good reviews
maks197457 [2]

Answer:

Step-by-step explanation:

The given information can be tabulated as follows.

Success type          High             Moderate              Low            Total

                                 0.40                   0.35                 0.25             1

Good reviews          0.95                    0.60                0.10

Combined prob       0.4*0.95             0.35*0.6          0.25*0.1

                                 0.38                    0.21                  0.025       0.6125

A) the probability that  a product attains a good review

=Prob it it successful and gets good review + Prob it  is moderate successful and gets good review +Prob it it low successful and gets good review

= 0.6125

B) If a new design attains a good review,  the probability that it will be a highly successful product= \frac{0.38}{0.6125} \\=0.6204

C) Prob that does not attain a good review =(0.40*0.05)+0.35(0.4) +(0.25)*0.9

= 0.385

Prob for successful not getting good review = 0.40(0.05) = 0.02

Reqd prob = \frac{0.02}{0.385} \\=0.05195

8 0
4 years ago
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Eva8 [605]

Answer & Step-by-step explanation:

Simplifying

5n = 3000

Solving

5n = 3000

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Move all terms containing n to the left, all other terms to the right.

Divide each side by '5'.

n = 600

Simplifying

n = 600

3 0
3 years ago
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