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3 years ago

Solve 5(2x + 4) = 15. Round to the nearest thousandth.

Mathematics

2 answers:

hjlf3 years ago

8 0

Step-by-step explanation:

$5(2x + 4) = 15 \\ 10x + 20 = 15 \\ 10x = 15 - 20 \\ 10x = - 5 \\ \\ x = - \frac{5}{10} \\ \\ x = - 2$

iVinArrow [24]3 years ago

6 0

Answer:

-1/2 or -0.5

Step-by-step explanation:

5(2x+4)=15

10x+20=15

10x=-5

x=-5/10

x=-1/2

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What is 713 divided by 9 and then the quotient estimated

Murljashka [212]

713/9

79 2/9 Decimal form: 79.222

713 divided by 9 is 79 with a quotient estimate of 2.

79 r 2

4 0

3 years ago

A ball is thrown vertically upward from the ground with an initial velocity of 111 ft/sec. Use the quadratic function h(t) = −16

ddd [48]

Answer:

t=3.5 seconds

Step-by-step explanation:

Given

h(t) = −16t^2 + 111t + 0

h'(t)= -32t + 111

Maximum height occurs when h(t) = 0 and the ball begins to fall

h(t)= -32t + 111=0

-32t + 111=0

-32t=-111

Divide both sides by -32

t=3.46872

Approximately, t=3.5 seconds

Recall,

Maximum height occurs when h(t) = 0

h(t)= -32t + 111=0

= -32(3.46872)+111

= -110.99904+111

= 0.00096 ft

4 0

3 years ago

The ratio of the rise to the run of the given triangle is __

Lemur [1.5K]

Answer:

1) 5/2 or 2.5

2) 5/2 or 2.5

Step-by-step explanation:

1) 5/2 = 2.5

2) 10/4 = 5/2 = 2.5

Because the hypotenuse of both are the segments of the same line and straight lines have the same gradient for all segments

4 0

3 years ago

⚠WILL GET BRAINLEST...THE QUESTION IS AT THE BOTTOM ⚠How many solutions does have? O A. Two solutions B. No solutions C. Infinit

Keith_Richards [23]

Answer:

D one solution.

Step-by-step explanation:

It's linear. It is going to have at most 1 solution

8 + x/6 = x/6 - 4 + 5x/12 Subtract x/6 from both sides

8 = -4 + 5x/12 Add 4 to both sides

8+4 = 5x / 12 Combine

12 = 5x / 12 Multiply both sides by 12

12 * 12 = 5x * 12 / 12 Cancel

144 = 5x Divide by 5

144/5 = 5x/5

28.8 = x

3 0

2 years ago

A textile manufacturer wants to set up a control chart for irregularities (eg. oil stains, shop soil, loose threads, and tears)

Nookie1986 [14]

Answer:

UCLc = 25.7715519

LCLc =-4.171551971

find attached the C-chart(control chart)

Step-by-step explanation:

Sample Irregularities Sample Irregularity Sample Irregularity

1 18 6 11 11 10

2 14 7 4 12 16

3 6 8 10 13 5

4 14 9 12 14 15

5 8 10 9 15 17

Samples/Irre Cont'd

16 - 4

17 - 15

18 - 9

19 - 15

20 - 17

Using these? data, set up a? c-chart with z =33.

UCLc =

LCLc =

Sample irreg mean(CL) UCL LCL

ularities

1 18 10.8 25.77155197 -4.171551971

2 14 10.8 25.77155197 -4.171551971

3 6 10.8 25.77155197 -4.171551971

4 14 10.8 25.77155197 -4.171551971

5 8 10.8 25.77155197 -4.171551971

6 11 10.8 25.77155197 -4.171551971

7 4 10.8 25.77155197 -4.171551971

8 10 10.8 25.77155197 -4.171551971

9 12 10.8 25.77155197 -4.171551971

10 9 10.8 25.77155197 -4.171551971

11 11 10.8 25.77155197 -4.171551971

12 16 10.8 25.77155197 -4.171551971

13 5 10.8 25.77155197 -4.171551971

14 1 10.8 25.77155197 -4.171551971

15 17 10.8 25.77155197 -4.171551971

16 4 10.8 25.77155197 -4.171551971

17 15 10.8 25.77155197 -4.171551971

18 9 10.8 25.77155197 -4.171551971

19 15 10.8 25.77155197 -4.171551971

20 17 10.8 25.77155197 -4.171551971

find attached the C-chart

Download xlsx

5 0

3 years ago