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evablogger [386]
3 years ago
13

10-d = -34-5d solve this equation

Mathematics
2 answers:
algol133 years ago
7 0
<h3><u>Explanation</u></h3>
  • Given the equation.

10 - d =  - 34 - 5d

  • Solve the equation for d-term.

Because we cannot subtract or add up constants and variables, we simply move the same variable term to the same side and constant term to the same constant side.

10 + 34 =  - 5d + d \\ 44 =  - 4d \\  \frac{44}{ - 4}  = d \\  - 11 = d

  • Answer Check

Substitute d = -11 in the equation.

10 - ( - 11) =  - 34 - 5( - 11) \\ 10 + 11 =  - 34 + 55 \\ 21 = 21

The equation is true for d = -11.

<h3><u>Answer</u></h3>

<u>\large \boxed{d =  - 11}</u>

Anni [7]3 years ago
3 0

Answer:

d=-11

Step-by-step explanation:

10-d=-34-5d

+5d +5d

10+4d=-34

-10 -10

4d=-44

÷4 ÷4

d=-11

just do the opposite

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Trigonometry questions
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We'll use standard labeling of right triangle ABC, C=90 degrees, legs a, b, hypotenuse c.

11.

Right triangle, cliff peak A, boat B, angle opposite cliff is B=28.9 deg. adjacent leg a=65.7 m, cliff height is leg b.

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Similar story, boat at B, opposite b=3.5 m, rope c=12 m

sin B = b/c

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13.

c=124 m, A=58°

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14.

That's a hypotenuse c=4-1.2 = 2.8 m to a height b=1.8m so

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Not a right triangle, an isosceles triangle.  Half of it is a right triangle with hypotenuse one arm, c=9.8 cm and angle opposite half the base of B=62/2=31°.  We're after d=2b:

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The coordinates of three vertices of square ABCD are A(−212,112),B(−212,−3), and C(2,112).
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Answer:

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Step-by-step explanation:

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Note the x-coordinate of A and B are the same. It means this side is parallel to the y-axis. Also, the y-coordinate of A and C are the same, meaning this side is parallel to the x-axis. The missing point D should have the same x-coordinate as C and y-coordinate as B, i.e. D=(2,-3).

This shape has sides that are parallel to both axes.

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