3 years ago

30 POINTS!!

1 answer:

7 0

Since x forms a straight line with 2 angles, we know that a straight line is 180 degrees. From there we add 40+50+x=180.
Solving for x gives us 90. Since x and y are vertical angles, we know that y also equals 90.

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Question 13

kicyunya [14]

Answer:

The c intercept is 42

The t intercepts are: 6, -1 and 7

Step-by-step explanation:

Given

$c(t) = (t - 6)(t +1)(t-7)$

Solving (a): The c intercept

Simply set t to 0

$c(t) = (t - 6)(t +1)(t-7)$

$c(0) = (0 - 6)(0 +1)(0-7)$

$c(0) = (- 6)(1)(-7)$

$c(0) = 42$

Solving (b): The t intercept

Simply set c(t) to 0

$c(t) = (t - 6)(t +1)(t-7)$

$(t - 6)(t +1)(t-7) = 0$

Split

$t - 6= 0,\ \ t +1= 0,\ \ t-7 = 0$

Solve for t

$t = 6,\ \ t =-1,\ \ t=7$

4 0

3 years ago

a package of markers includes 3 black markers and 9 colored markers. What percent of the markers in the package are colored mark

enyata [817]

0.75

just divide 9 by 12

3 0

4 years ago

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Is 59 rational or irrational explain

saw5 [17]

59 is a rational number
59 is not a irrational number because simply a irrational number is basically
Pi ,E
Or any imperfect squares
A irrational number is a non repeating decimal and has different numbers in each space

8 0

3 years ago

Write an equation that models the sequence 400, 200, 100, 50, ...

Julli [10]

You're starting at 400. Each time you're cutting in half.

So the common ratio is 1/2 which means the equation is

$\Large y = 400(1/2)^{x-1}$

which is in the geometric sequence format. So the answer is choice D

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3 years ago

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The recipe for sugar cookies requires 5 cups of flour to 3 cups of sugar. If Alex uses 15 cups of flour, how many cups of sugar

svp [43]

9 Cups. I 5*3=15 so 3*3=9

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3 years ago

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