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3 years ago

Solving for x: 15+8x=2x+7-5x

1 answer:

8 0

15+8x=2x+7-5x

Subtract 8x from both sides.
15=2x+7-5x-8x

Combine like terms.
15=-11x+7

Subtract 7 from both sides.
8=-11x

Divide -11 from both sides.
.73=x

Your answer is .72

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Can someone help me?

sattari [20]

Answer:

176 cubic feet I think

Step-by-step explanation:

352 / 2 = 176

7 0

3 years ago

Read 2 more answers

Another geometry question thanks!

Anettt [7]

For the given right triangle, we have:

L = 57°
ML = 4.5
NL = 7.5

<h3>How to get the dimensions of the given triangle?</h3>

Here we have a right triangle, remember that the sum of the internal angles of a triangle must be 180°, then:

N + M + L = 180°

We can see that:

N = 37°

M = 90°

Then:

L = 180° - N - M = 180° - 37° - 90° = 53°

Also, if we step on N, the adjacent cathetus measures 6 units, then we can use the relations:

tan(37°) = (opposite cathetus)/(adjacent cathetus)

tan(37°) = ML/6

tan(37°)*6 = ML = 4.5

cos(37°) = (adjacent cathetus)/(hypotenuse)

cos(37°) = 6/NL

NL = 6/cos(37°) = 7.5

If you want to learn more about right triangles:

brainly.com/question/2217700

#SPJ1

4 0

2 years ago

Use the change of Base formula to evaluate log5 92 . then convert. Log5 92 to a logarithm in base 3. Round to the nearest thousa

vovikov84 [41]

Change of base is
$log_a(b)= \frac{log_c(b)}{log_c(a)}$
change base to 3
$log_5(92)= \frac{log_3(92)}{log_3(5)}$
why would you want base 3? base 10 is on most calculators
anyway, the value would be 2.809555

4 0

3 years ago

Read 2 more answers

How many milligrams is equal to 85 grams?

My name is Ann [436]

Answer:

B. 85,000

Step-by-step explanation:

85 * 1000

= 85,000 mg.

3 0

3 years ago

Find the area of the following shape

blsea [12.9K]

Answer:

56.8 m²

Step-by-step explanation:

This shape is clearly a trapezium / trapezoid. So :

Area of a trapezium is given by the formula :

$\frac{a+b}{2} h$

Substitute values given in diagram :

a = 4.2

b = 10

h = 8

$(\frac{4.2+10}{2} )8$

7.1 × 8 = 56.8

Units will be m² as this is area

Giving us our final answer of 56.8 m²

8 0

2 years ago