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ddd [48]
3 years ago
6

Which algebraic expression is equivalent to the expression below?

Mathematics
1 answer:
Anna007 [38]3 years ago
6 0

Answer:

\boxed {52x - 45} (Choice B)

Step-by-step explanation:

Solve the following expression:

9(5x - 5) + 7x

-Use <u>Distributive Property</u>:

9(5x - 5) + 7x

45x - 45 + 7x

-Combine like terms:

45x - 45 + 7x

\boxed {52x - 45}

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Find the slope of the line passing through the point (-6,8) and (-9,1)
Ipatiy [6.2K]
Hello!

Y2-y1/x2-x1

1-9/8-6
-8/2

The slope is -4

Hope this helps!

-bambi
5 0
2 years ago
PLEASE HELP FAST! UNIT TEST and I NEED A GOOD GRADE.
Crank

Slope = -5

y-intercept = 5

y = -5x + 5

Hope this helps! ;)

3 0
3 years ago
The angle looking up at the sun is 70°. A flagpole casts a shadow of 15 ft. Draw a diagram and find the height of the flagpole
deff fn [24]

Answer:

The length of the flagpole be 41.2 ft .

Option (A) is correct .

Step-by-step explanation:

As given

The angle looking up at the sun is 70°.

A flagpole casts a shadow of 15 ft .

Now by using the trignometric identity .

tan \theta = \frac{Perpendicular}{Base}

\ theta = 70^{\circ}

tan\ 70^{\circ} = \frac{AB}{BC}

BC = 15 ft

tan 70° = 2.75 (Approx)

2.75 = \frac{AB}{15}

AB = 2.75 × 15

     = 41.2 ft

Therefore the length of the flagpole be 41.2 ft .

Option (A) is correct .

4 0
3 years ago
Read 2 more answers
1 The metal used to make a coin is a mixture of steel and copper. The ratio mass of steel
Masteriza [31]

\huge{ \underline{ \underline{ \gray{ \bf{Solution:}}}}}

Let,

  • Mass of the steel be 108x
  • Mass of the copper be 7x
  • Then, Total mass = 108x + 7x = 115x

Given,

  • Total mass of the coin = 230 mg

That means,

⇛ Total mass of the coin = 230 mg

⇛ 115x = 230 mg

⇛ x = 230 mg/115

⇛ x = 2 mg

Then,

  • Mass of the steel = 108(2) = 216 mg
  • Mass of the copper = 7(2) = 14 mg

☁️ ANSWER - 14 mg (Mass of copper)

<u>━━━━━━━━━━━━━━━━━━━━</u>

7 0
3 years ago
CAN U HELP ME PLZ!!!! |<br> \/
slava [35]

Answer:

7.33

Step-by-step explanation:

6 0
2 years ago
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