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natta225 [31]
2 years ago
10

Which of the following pairs are complementary angles?

Mathematics
1 answer:
trasher [3.6K]2 years ago
7 0
It’s 2 since 20+70= 90

And complementary angles are two angles that sums up to 90 :)
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1 point
Dmitry_Shevchenko [17]
I’m sure the answer is, she can drive 562.5 miles.


Explanation:
.16 x 562.5 = 90
4 0
2 years ago
What is the value of Y in the exponential decay function when x equals 3? Y=0.25x
Taya2010 [7]
Plug three in wherever there is an x
y=.25(3)
y=.75
7 0
3 years ago
Read 2 more answers
Find the value of k such that x-2 is a factor of 3x³-kx²+5x+k​
Nuetrik [128]

Answer:

\displaystyle k = \frac{34}{3}

Step-by-step explanation:

We are given the polynomial:

\displaystyle P(x) = 3x^3 - kx^2 + 5x + k

And we want to determine the value of <em>k</em> such that (<em>x</em> - 2) is a factor of the polynomial.

Recall that the Factor Theorem states that a binomial (<em>x</em> - <em>a</em>) is a factor of a polynomial P(x) if and only if P(a) = 0.

Our binomial factor is (<em>x</em> - 2). Thus, <em>a</em> = 2.

Hence, by the Factor Theorem, P(2) must equal zero.

Find P(2):

\displaystyle \begin{aligned} P(2) &= 3(2)^3 - k(2)^2 + 5(2) + k \\ \\ &= 3(8) - 4k + 10 + k \\ \\ &= 34 - 3k  \end{aligned}

This must equal zero. Hence:

\displaystyle \begin{aligned} 34 - 3k &= 0 \\ \\ -3k &= -34 \\ \\ k = \frac{34}{3}  \end{aligned}

In conclusion, <em>k</em> = 34/3.

6 0
2 years ago
The sides of a rectangle are in the ratio 5 : 4. If the perimeter of the rectangle is 360 cm , find its area
djverab [1.8K]

Answer:

Step-by-step explanation:

let, the length is z

thus the ratio will be 5z : 4z

perimeter = 2 (a + b)

360 = 2 ( 5z + 4z )

180 = 9z

z = 20 cm

length = 100 cm and width = 80cm

area = length * width

area = 100*80

area = 8000cm²

4 0
2 years ago
Select all statements that are true about the graph and the situation it represents
omeli [17]

Answer: ez

Step-by-step explanation:

its b

8 0
3 years ago
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