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lutik1710 [3]
3 years ago
9

PLEASE HELP & SHOW WORK , ITS URGENT it’s appreciated <3 !!

Mathematics
2 answers:
natta225 [31]3 years ago
4 0

Answer:

5

Step-by-step explanation:

kupik [55]3 years ago
3 0

Answer:

9.4 ft

Step-by-step explanation:

The track is the circumference of a circle with radius 1.5 ft

The circumference (C) of a circle is calculated using the formula

C = 2πr ← where r is the radius

C = 2 × π × 1.5 ≈ 9.4 ft

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Paula solve the equation 7 x equals 10 and got 17 but she is not sure if she got the correct answer how could you explain paula'
kaheart [24]
7x = 10
•Paula added 7 to 10, which was her mistake. To fix her mistake, she would have to divide by 7, instead of adding 7. The correct answer is 10/7.
3 0
4 years ago
According to a zoologist's study, the equation yˆ=0.1651x+149.5738 models the weight of a baby giraffe, in pounds, during the gi
viktelen [127]

Answer:

220

Step-by-step explanation:

3 0
3 years ago
The graph of $y=ax^2+bx+c$ passes through points $(0,5)$, $(1,10)$, and $(2,19)$. Find $a+b+c$.
MAVERICK [17]

Answer:

a+b+c=10

Step-by-step explanation:

We are given that the graph of the equation:

y=ax^2+bx+c

Passes through the three points (0, 5), (1, 10), and (2, 19).

And we want to find the value of (<em>a</em> + <em>b</em> + <em>c</em>).

First, since the graph passes through (0, 5), its <em>y-</em>intercept or <em>c</em> is 5. Hence:

y=ax^2+bx+5

Next, since the graph passes through (1, 10), when <em>x</em> = 1, <em>y</em> = 10. Substitute:

(10)=a(1)^2+b(1)+5

Simplify:

5=a+b

The point (2, 19) tells us that when <em>x</em> = 2, <em>y</em> = 19. Substitute:

(19)=a(2)^2+b(2)+5

Simplify:

14=4a+2b

This yields a system of equations:

\begin{cases} 5 = a + b \\ 14 = 4a + 2b\end{cases}

Solve the system. We can do so using elimination (or any other method you prefer). Multiply the first equation by negative two:

-10=-2a-2b

Add the two equations together:

(-10)+(14)=(-2a+4a)+(-2b+2b)

Combine like terms:

4 = 2a

Hence:

a=2

Using the first equation:

5=(2)+b\Rightarrow b=3

Therefore, our equation is:

y=2x^2+3x+5

Thus, the value of (<em>a</em> + <em>b</em> + <em>c</em>) will be:

a+b+c = (2) + (3) + (5) = 10

7 0
3 years ago
How do I do these problems?? Explain please!!
Drupady [299]

Answer:

hello what grade is

Step-by-step explanation:

6 0
4 years ago
What are the zeroes of y=x^2+14x+40
a_sh-v [17]
y=x^2+14x+40 

y-x^2-14x-40=0 

In general, given a{x}^{2}+bx+c=0, there exists two solutions where

x=  \dfrac{14+2 \sqrt{y+9} }{-2} , \dfrac{14-2 \sqrt{y+9} }{-2} 

x=-7- \sqrt{y+9},-7+ \sqrt{y+9}
3 0
3 years ago
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