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8090 [49]
3 years ago
9

I need help with math, I have no idea what I'm doing

Mathematics
1 answer:
Masteriza [31]3 years ago
5 0
A. (x+3)(4x+5)
(multiply x with 4x+5 then multiply 3 with 4x+5)
=4x^2+5x+12x+15
=4x^2+17x+15
b,c, and d are similar
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Help I will be marking brainliest!!!!
artcher [175]

Answer: <em>A. 241 feet</em>

Step-by-step explanation:

<em>The figure shows two rectangular triangles. </em>

<em>These triangles are similar since they have two identical angles: </em>

<em>the first angle is 90 degrees; </em>

<em>the second angle is equal because the law of reflection states that the angle of incidence is equal to the angle of reflection. </em>

<em>The law of reflection states that the angle of incidence is equal to the angle of REFLECTION.</em>

<em>Let's make the proportion:</em>

<em />\dfrac{4}{273} =\dfrac{5}{x} \\\\x=\dfrac{273 \cdot 5}{4} =341.25 \: (feet)\\<em />

<em>It takes a minimum of 100 feet for a parachute to open and safely land without injury, so:</em>

<em>341.25 - 100 = 241.25 (feet)</em>

<em>241.25 ≈ 241 (feet)</em>

8 0
3 years ago
Which of the following possibilities will form a triangle?
ivann1987 [24]

Answer:

Option 4

Step-by-step explanation:

The smaller sides must add up to be greater than the largest side so:

1) 6 + 8 < 15

1) No

2) 6 + 9 = 15

2) No

3) 9 + 6 < 16

3) No

4) 9 + 8 > 16

4) Yes

6 0
3 years ago
A
Taya2010 [7]
6 units Foo
Explanation
Cause it’s just 6 units
4 0
2 years ago
Please help me with disss
Westkost [7]

Answer:

-4

Step-by-step explanation:

3 0
3 years ago
Circle A is shown with a central angle marked 37 degrees and the radius marked 10 inches.
Greeley [361]

Answer:

Hello! Your answer would be, D)π(37in) 5 over 360

Step-by-step explanation:

Hope I helped! Brainiest plz!♥ Have a nice afternoon! Hope you make a 100%! -Amelia

4 0
3 years ago
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