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3 years ago

Can you help me slove this 4 - 2x = 10

Mathematics

1 answer:

melomori [17]3 years ago

4 0

Answer:

x = -3

Step-by-step explanation:

First we take the equation below.

4 - 2x = 10

Subtract 4 from each side because of the subtraction property of equality.

-2x=6

Divide both sides by -2 to isolate the x. (Division property of equality

x=-3

We now know that x = -3.

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Find the volume of the composite solid below. If needed,round to the nearest hundredth. Use 3.14

ZanzabumX [31]

Answer:

429.42 cm

Step-by-step explanation:

Volume of a rectangle prism:

V = whl

V = (5)(12)(7)

V = 420

Volume of a cylinder:

V = πr²h

V = (3.14)(1²)(3)

V = (3.14)(1)(3)

V = 9.42

Combined:

420 + 9.42

429.42

6 0

3 years ago

Solve with quadratic formula. 4k^2- 20 = k

zvonat [6]

Answer: $k= \frac{1+\sqrt{321} }{8} , \frac{1-\sqrt{321} }{8}$

Step-by-step explanation:

Move all terms to one side.

$4^{2} -20-k=0$

Use the Quadratic Formula.

$k=\frac{1+\sqrt{321} }{8}$ , $k=\frac{1-\sqrt{321} }{8}$

5 0

3 years ago

Read 2 more answers

This is my last question i promise

VladimirAG [237]

Answer:

Step-by-step explanation:

x+7+25+2x+4=180

3x+11+25=180

3x=180-36

3x=144

x=144/3

x=48

6 0

2 years ago

Please help again thank you in advance

mojhsa [17]

Answer:

20 units

Step-by-step explanation:

Since the triangle is equilateral then all 3 sides are equal in length.

Equate any 2 sides and solve for x

4x = 3x + 5 ( subtract 3x from both sides )

x = 5

hence

4x = 4 × 5 = 20

3x + 5 = (3 × 5) + 5 = 15 + 5 = 20

7x - 15 = (7 × 5) - 15 = 35 - 15 = 20

The lengths of the sides are 20 units

7 0

3 years ago

Read 2 more answers

9. The accepted temperature of a refrigerator is 38.0 F. A temperature sensor is tested 10 times in the refrigerator. The temper

Daniel [21]

Answer:

The answer is "Their values are reliable or accurate in the distribution of the test".

Step-by-step explanation:

Given temperature:

$37.8, \ 38.3, \ 38.1, \ 38.0, \ 37.6, \ 38.2, \ 38.0, \ 38.0, \ 37.4, \ 38.3$

Calculating the average value temperature:

$\to \frac{37.8 + 38.3 + 38.1 + 38.0 + 37.6+ 38.2+ 38.0+ 38.0+37.4+ 38.3}{10}$

$\to \frac{379.7}{10}\\\\\to 37.97\\\\\to 38$

3 0

3 years ago