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2 years ago

WILL BE BRANLIEST!!!

Mathematics

2 answers:

stiks02 [169]2 years ago

8 0

Answer:

See explanation

Step-by-step explanation:

A. Solution set is in the attachment (dark green shading in the middle)

B. Yes, 2(5) + 3(1) ≤ 15; 13 is less than or equal to 15

5 + 1 > 3, 6 is greater than 3

C. (4, 2) means that he buys 4 sandwiches and 2 hot lunches

marishachu [46]2 years ago

3 0

Tfgha hey dggdff F ffvdvhuhdghj

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What’s the largest fraction in each group? a. 5⁄6 and 29⁄36 b. 5⁄12 and 3⁄8 c. 2⁄5 and 19⁄45 d. 5⁄7, 13⁄14, and 19⁄21 e. 7⁄11 an

Mariulka [41]

Imagine a cake. OK? Now divide the cake in 2 equal pieces, each one is ½ of the cake.
Now divide each piece in 2 halves; each one is ¼ of the cake. Witch is largest? 1:2=0,5; 1:4=0,25. 0,5>0,25.

5:6=0,83333
29:36=0,80555
0,83>0,80 so 5/6 is the largest.

Do this for each group.

a.5/6
b.5/8
c.19/45
d.13/14
e.7/11
f.1/2

8 0

2 years ago

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A quadratic equation of the form 0 = ax2 + bx + c has a discriminant value of 0. How many real number solutions does the equatio

Dima020 [189]

It has one solution. when discriminant=0, tangent to the curve( means touches at one point ) hence one solution.

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2 years ago

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Sam is 3 years younger than Susan. Susan is 40 years old. If Sam is s years old, the equation that relates his age with Susan's

dedylja [7]

Answer:

Sam is 37 years old.

Step-by-step explanation:

Susan is 40. Sam is just 3 years younger, making him/her 37.

40 = S + 3

(S = 37)

I hope this helped at all ^-^ Please tll me if I made an error or left something out.

5 0

2 years ago

The population of a small town is decreasing exponentially at a rate of 14.3% each year. The current population is 9,400 people.

levacccp [35]

Answer:

After 2.9 years the town's tax status will change

The towns tax status change within the next 3 years

Step-by-step explanation:

The question below is

Will the towns tax status change within the next 3 years ?

Let

y -----> the population of a small town

t ----> the number of years

we have a exponential function of the form

$y=a(b)^{t}$

where

a is the initial value

b is the base

In this problem

$a=9,400\ people$

$b=100\%-14.3\%=85.7\%=85.7/100=0.857$

substitute

$y=9,400(0.857)^{t}$

Remember that

The town's tax status will change once the population is below 6,000 people

The inequality that represent this situation is

$9,400(0.857)^{t}< 6,000$

Solve for t

$(0.857)^{t}< 6,000/9,400$

Apply log both sides

$(t)log(0.857)< log(6,000/9,400)$

$-0.067t< -0.1950$

Multiply by -1 both sides

$0.067t > 0.1950$

$t > 2.9\ years$

After 2.9 years the town's tax status will change

therefore

The answer is

Yes, the towns tax status change within the next 3 years

6 0

2 years ago

9. The average diameter of an atom is 2 x 10-8 m. What if the average diameter of an atom was 1 cm? How tall would you be?

ozzi

Answer:

You'd be $2 * 10^{-6}$ times tall

Step-by-step explanation:

Given

Represent the previous and new diameter by D1 and D2;

$D_1 = 2 * 10^{-8}m$

$D_2 = 1\ cm$

To determine how tall you'd be, we need to divide D2 by D1;

$Ratio = \frac{D_2}{D_1}$

Substitute values for D2 and D1

$Ratio = \frac{2 * 10^{-8}m}{1\ cm}$

Convert cm to m

$Ratio = \frac{2 * 10^{-8}m}{1 * 0.01\ m}$

$Ratio = \frac{2 * 10^{-8}m}{0.01\ m}$

Convert denominator to exponents

$Ratio = \frac{2 * 10^{-8}m}{10^{-2}\ m}$

$Ratio = \frac{2 * 10^{-8}}{10^{-2}}$

Apply Law of indices

$Ratio = 2 * 10^{-8} * 10^2$

$Ratio = 2 * 10^{-8+2}$

$Ratio = 2 * 10^{-6}$

Hence;

<em>You'd be </em> $2 * 10^{-6}$ <em> times tall</em>

4 0

2 years ago