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Nadya [2.5K]
4 years ago
12

Plzz help thank you!!!

Mathematics
2 answers:
Stolb23 [73]4 years ago
7 0
I think the answer would be 78 ... I could be wrong tho
stepan [7]4 years ago
4 0

Answer:120

Step-by-step explanation:

find the pathogorious relationship of 5,12,13

the formulae is 1/2bh

1/2*5*12=30

multiply 3 and 4 because there are 4 triangles in the rhombus

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The winner of a 100 mile race drove his car to victory at a rate of 120.1229 mph. What was his time to the nearest thousandth of
Zigmanuir [339]

Answer:

t=1.201\ \text{hour}

Step-by-step explanation:

Given that,

Distance, d = 100 mile

Velocity of the winner, v = 120.1229 mph

We know that velocity of an object is equal to distance per unit time. Let t is the time. So,

v=\dfrac{d}{t}\\\\t=\dfrac{d}{v}\\\\t=\dfrac{120.1229}{100 }\\\\t=1.201229\ \text{hour}\\\\\text{Round to the nearest thousandth}\\\\t=1.201\ \text{hour}

Hence, 1.201 hour is taken by the winner.

8 0
3 years ago
WILL GIVE MEDAL!! A flight of stairs is supported by two columns as shown. What is the distance from the base of the stairs to t
scoray [572]
There are two triangles: a small one to the left and a big one, which includes the small one. They both have a common angle (the leftmost angle) and since (we can assume) the two columns meet the floor at right angles, they both have two equal angles. This means they are similar (AAA).

Let the distance of the base of the stairs to the tallest column be d.

Because matching sides of similar triangles are in the same ratio,
4 / 6 = d / (6 + 12)
4 / 6 = d / 18
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The answer is C
6 0
3 years ago
Read 2 more answers
What is the 25th term of this arithmetic sequence?
PilotLPTM [1.2K]
The 25th arithmetic term will be -67
4 0
3 years ago
What is the vertex of x^2 -10x + 21
Radda [10]

Answer:

(5, - 4)

Step-by-step explanation:

Given a quadratic in standard form : ax² + bx + c : a ≠ 0

Then the x- coordinate of the vertex is

x_{vertex} = - \frac{b}{2a}

x² - 10x + 21 ← is in standard form

with a = 1, b = - 10, so

x_{vertex} = - \frac{-10}{2} = 5

Substitute x = 5 into the quadratic for the corresponding value of y

y = 5² - 10(5) + 21 = 25 - 50 + 21 = - 4

vertex = (5, - 4)

5 0
3 years ago
I need to know 2 divided by 9/10
xz_007 [3.2K]

Answer:

2 2/9

Step-by-step explanation:

2 divided by 9/10 = 2/1 / 9/10

2/1 x 10/9 = 20/9 = 2 2/9 or 2.222..

5 0
3 years ago
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