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3 years ago

Please help me im really stuck

Mathematics

2 answers:

lubasha [3.4K]3 years ago

5 0

Answer:

61%

Step-by-step explanation:

There are 100 squares

61 squares are colored

61 out of 100 are shaded

Percent means out of 100

61/100 = 61%

Nataly [62]3 years ago

3 0

Answer:

61%

Step-by-step explanation:

Reasoning: Theres 39% unshaded which means 61% is the shaded area

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Wilma has 21 coins in her pocket made up of dimes and quarters. If the total value of the coins is $3.45, how many of each coin

jeyben [28]

Answer:

x = 12

y = 9

12 coins of dimes

9 coins of quartes

Step-by-step explanation:

x ---> coins of dimes

y ---> coins of quartes

x + y = 21

0.1x + 0.25y = 3.45 * 100

x + y = 21 L1

10x + 25y = 345 L2

x = 21 - y

Reemplace in L2

10(21 - y) + 25y = 345

210 - 10y + 25y = 345

15y = 345 - 210

15y = 135

y = 9

x = 21 - y

x = 21 - 9

x = 12

8 0

4 years ago

Multiply and simplify. (3x+5)(2x2−3x+2) Enter your answer, in standard form, in the box.

Sveta_85 [38]

Answer:

$6x^3+x^2-9x+10$

Step-by-step explanation:

We have the product, $(3x+5)(2x^{2}-3x+2)$ .

On simplifying the product, we get,

$(3x+5)(2x^{2}-3x+2)$

i.e. $6x^3-9x^2+6x+10x^2-15x+10$

i.e. $6x^3+x^2-9x+10$

Thus, the standard form of the product $(3x+5)(2x^{2}-3x+2)$ is $6x^3+x^2-9x+10$ .

7 0

3 years ago

Read 2 more answers

NO LINKS!!! This is NOT MULTIPLE CHOICE!!!

aleksley [76]

Answer:

Given equation: $y=(x+1)^2-2$

The function is a quadratic function in vertex form: $y=a(x-h)^2+k$

Translations

For $a > 0$

$f(x+a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units left}$

$f(x-a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units right}$

$f(x)+a \implies f(x) \: \textsf{translated}\:a\:\textsf{units up}$

$f(x)-a \implies f(x) \: \textsf{translated}\:a\:\textsf{units down}$

Parent function: $f(x)=x^2$

Translations

Translated 1 unit left: $f(x+1)=(x+1)^2$

Then translated 2 units down: $f(x)-2=(x+1)^2-2$

Therefore, translate the parent function by 1 unit left and 2 units down to produce the given equation.

4 0

3 years ago

Read 2 more answers

In a freefall skydive, a skydiver begins at an altitude of 10,000 feet. during a freefall, the skydiver drops toward earth towar

asambeis [7]

Answer:

{ $t|0\leq t\leq 50$ }

Step-by-step explanation:

We are given that

In a freefall skydive, a skydiver begins at an altitude during free fall =10,000 feet

The skydiver drops towards earth at a rate=175 ft/s

The height of the skydiver from the ground can be modeled using the function

$H(t)=10000-175t$

We have to find the domain of the function for this situation.

When t=0

Then , $H(0)=10,000 feet$

From given graph we can see that the value of t lies from 0 to 50.

Therefore, the domain of the function for this situation is given by

{ $t|0\leq t\leq 50$ }

7 0

3 years ago

Find the value of X and please show your work.

STALIN [3.7K]

Answer:

x= -22

Step-by-step explanation:

3x=5x+44

subtract 2x from both sides and leave only x on one side 3x(-2x)=5x(-2x)+44

then you get

x=3x+44

then you subtract the 3x to both sides

x(-3x)=3x(-3x)+44

then you get

-2x=44

and divide 2 on each side so-

x= -22

4 0

3 years ago