Can someone please help me with this? I'll mark brainliest for the right answer

Mathematics

1 answer:

lapo4ka [179]3 years ago

6 0

Where’s the question?

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3 years ago

-7 - 7 ( 8x - 7 ) = - 19 + 5x

Yakvenalex [24]

-7 - 7( 8x - 7 ) = -19 + 5x
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3 years ago

Find the diameter of the circle. Assume the leg of the triangle is tangent to the circle. Round any decimals to the nearest tent

Anvisha [2.4K]

Answer:

8.7 units

Step-by-step explanation:

Given is a right angled triangle (because the segment with 5 units length is tangent to circle. Tangent is perpendicular to RADIUS or diameter)

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By Pythagoras Theorem:

$d = \sqrt{ {10}^{2} - {5}^{2} } \\ = \sqrt{100 - 25} \\ = \sqrt{75} \\ = 8.66025404 \\ = 8.7 \: units$

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3 years ago

What is the surface area and volume? PLEASE EXPLAIN IN DETAIL.

Effectus [21]

Check the picture below.

so to find the surface area of the triangular prism, we simply add the areas of each of the figures composing it, as you can see is really just 2 triangles an 3 rectangles.

$\bf \stackrel{\textit{\Large Areas}}{\stackrel{triangles}{2\left[ \cfrac{1}{2}(4)(3) \right]}+\stackrel{\textit{rectangles}}{(3\cdot 10)+(4\cdot 10)+(5\cdot 10)}}\implies 12+30+40+50\implies 132$

now, to get the volume is simply the area of the triangular face times the length, well, we know the area of one of the triangles is 6, times 10 is just 6*10 = 60.

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3 years ago

Kathy takes her cat to a veterinarian every year for a check-up. Last year, the difference in the cat's weight from teh year bef

Nataliya [291]

To find the difference in weights from two years ago, you will need to combine the 2 differences from the two years.

-1.56 and 0.73 becomes -1.56 + 0.73.

To add a positive and a negative number you will subtract the absolute values of the numbers AND use the sign of the number with the bigger absolute value (negative) in your answer.

|-1.56| - |0.73|
1.56 - 0.73 = 0.83
-0.83

The cat lost 0.83 (-0.83) pounds over 2 years.

3 0

3 years ago