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kykrilka [37]
2 years ago
9

Evaluate the following expressions by substituting s = 20 and t = 6

Mathematics
1 answer:
gtnhenbr [62]2 years ago
3 0

Answer:

The answer will be the 3rd option, 12.8

Step-by-step explanation:

I'm gonna assume that since you copy and pasted the question, the equation is actually s - 0.2t^2

Now we just need to substitute the values with their respective ones.

20 - 0.2(6)^2

Now we just have to solve :)

20 - 0.2(6)^2

= 12.8

So the answer will be the 3rd option, 12.8

Hope this helped! :D

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Lei pre sold 32 carnations for a fundraiser, then she sold c more carnations on the day of the fundraiser. She earned 0.25 dolla
Lina20 [59]

Answer: 0.5 * (16 + 0.5c)

Step-by-step explanation:

Creating identical expressions involves changing quantities in a way that preserves the end values specified in the equation.

For instance, if Lei sold 4 carnations:

8 + 0.25 (4) = 9\\\\0.25 * (32 + 4) = 9

In the second equation listed, the expression (8 + 0.25c) was multiplied by 4, then by 0.25, for a total multiplicand of 1.

You can make a third equation through the same method. I'll multiply (8 + 0.25c) by 2, and then multiply that expression by 0.5 to keep the multiplicand unchanged:

0.5 * (16 + 0.5c)

If Lei sold 4 carnations:

0.5 * (16 + 2) = 9

This equation represents the same quantities as the other equations.

7 0
4 years ago
What does > −2 indicate about the positions of and −2 on the number line?
Aloiza [94]
It’s less than a positive number
6 0
4 years ago
What is 4/9 rounded to it's closest estimate
quester [9]

Answer:

1/2

Step-by-step explanation:

4/9 is .444

1/2 is .5

1/3 is .3333

4/9 is closer to being 1/2 than 1/3

8 0
3 years ago
Read 2 more answers
In this figure, AB ||CD and m<1=135. What is m<7
telo118 [61]

Answer:

135

Step-by-step explanation:

Angles 1 and 3 are vertical angles, so they are congruent.

Since angle 1 measures 135 deg, angle 3 also measures 135 deg.

Angles 3 and 7 are corresponding angles of parallel lines cut by a transversal, so they are congruent.

Since angle 3 measures 135 deg, angle 7 also measures 135 deg.

Answer: m<7 = 135 deg

4 0
3 years ago
Solve the equation by factoring.<br> c2 - 2c + 1 = 0
nikitadnepr [17]

Answer:

The only solution is c=1

Step-by-step explanation:

c^2 - 2c + 1 = 0

What 2 numbers multiply to 1 and add to -2

-1 * -1 =1

-1 + -1 =-2

( c-1) (c-1)=0

Using the zero product property

c-1 =0  c-1 =0

c=1   c=1

The only solution is c=1

6 0
3 years ago
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