Please help!! I need help I don’t understand this!

Answer:

60 miles per hour

Step-by-step explanation:

This is a fraction equal to

300 miles ÷ 5 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 5

300 miles ÷ 5

5 hours ÷ 5

=  

60 miles

1 hour

=  

60 miles

hour

= 60 miles per hour

Answer:

60 miles per hour

Step-by-step explanation:

300/5 = 60

The polynomial

f(x) =2ˣ² - 5x + 3

zeroes of the polynomial f(x)= 2x² - 5x + 3

By factorizing we have ,

→ 2x² - 5x + 3

→2x² -2x - 3x + 3

→2x(x-1)-3(x-1)

→(2x-3)(x-1)

Now the zeroes are

→ 2x - 3 = 0 and → x - 1 = 0

→ x = 3/2 and → x = 1

Verification of relation

Sum of the zeroes = -b/a

⇒ 3/2 + 1 = -(-5/2)

⇒ (3+2)/2 = 5/2

⇒ 5/2 = 5/2

Product of the zeroes = c/a

⇒ 3/2×1 = 3/2

⇒ 3/2 = 3/2

Verified

I hope it will help you.

Regards.

Answer:

La medida del lado del primer mantel es 90 centímetros.

Primer mantel cubría un área de 8100 centímetros cuadrados.

Step-by-step explanation:

Sea [tex]x[/tex] la longitud del lado del mantel original, cuya forma es cuadrada y está medida en centímetros. Al agregarse dos prendas, se obtiene un rectángulo, cuya área ([tex]A[/tex]), medida en centímetros cuadrados, se halla mediante la siguiente fórmula:

[tex]A = w\cdot l[/tex] (Eq. 1)

Donde:

[tex]w[/tex] - Ancho, medido en centímetros.

[tex]l[/tex] - Largo, medido en centímetros.

Si [tex]A = 16800\,cm^{2}[/tex], [tex]l = x+50\,cm[/tex] y [tex]w = x+30\,cm[/tex], tenemos el siguiente polinomio de segundo orden:

[tex]16800 = (x+50)\cdot (x+30)[/tex]

[tex]16800 = x^{2}+80\cdot x +1500[/tex]

[tex]x^{2}+80\cdot x -15300 = 0[/tex]

Por la fórmula de la Cuadrática tenemos que las raíces del polinomio son:

[tex]x_{1} = 90\,cm[/tex], [tex]x_{2} = -170\,cm[/tex].

Solamente la primera raíz es una solución físicamente razonable. Entonces, la medida del lado del primer mantel es 90 centímetros.

Ahora, el área del primer mantel es:

[tex]A = (90\,cm)^{2}[/tex]

[tex]A = 8100\,cm^{2}[/tex]

Primer mantel cubría un área de 8100 centímetros cuadrados.

Answer:

9179.84

Step-by-step explanation:

150 grams to milligrams is 9179.84

Answer:

B. m<1=52, m<2=60

Step-by-step explanation:

to find angle 1 you need to subtract 128 from 180 which gives you 52. Then you add 68 and m <1 which gives you 120 and subtract that from 180 giving you 60 for m<2

Answer: 0= y x (x)

Step-by-step explanation: y x x ≠ 0.1x

The required inequality for the height of the building around the park should be y < 0.9x.

Given that,
A city has a building code that limits the height of buildings around the central park. The code says that all buildings must be less than 0.1x in height where x is the distance of the building from the center of the park and y is height in feet. Assume that the par center is located at 0.

Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.

Here,
The height of all the buildings must be,
y < x - 0.1x
y < x(0.9)
y < 0.9x

Thus, the required inequality for the height of the building around the park should be y < 0.9x.

Learn more about inequality here:

brainly.com/question/14098842

#SPJ2

Answer:

< (less than)

Step-by-step explanation:

15 squared is 225, 220 is less than 225.

Answer:

0.33333333

Step-by-step explanation:

but if the same number appears more than three times in a row it's just the first number so the correct on would be 0.3;)

Answer:

g(x) = (x - 7)² - 3

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (7, - 3) and a = 1, thus

g(x) = (x - 7)² - 3

Answer:

8.39 seconds

Step-by-step explanation:

Given the equation which models the height of a rocket:

y=-16x^2+263x+92

Time taken to reach maximum height ; = total total time of flight / 2

Total time of flight is obtained at h = 0

Hence +,

y=-16x^2+263x+92 ; y = 0

-16x^2+263x+92 = 0

Using the Quadratic equation solver :

X = 16.78 or x = -0.3466

Time can't be negative

Hence, total time of flight= 16.78

Therefore, time taken to reach maximum height :

Total time of flight / 2

= 16.78 / 2

= 8.39 seconds

Answer:

I got that answer also, but i just did the math in my head.

Step-by-step explanation:

Answer:

see below and attached images

Step-by-step explanation:

1.  move ABCD from point A to point E

2. mirror ABCD along y-axis at point A/E

3. rotate ABCD -40° from point A/E

4. ABCD is the same as EFGH.

Answer: C. 8n+3=19

8 times a number: 8n

3 more: +3

equals 19:=19

Step-by-step explanation:

Answer:

Step-by-step explanation:

Chuck has $2,345  in total

if one gift card cost $85

we want to find the total number of cards that $2,345 can buy.

so we have to divide $2,345  by $85

= $2,345/85

=27card in total

27*85=$2295

the amount left is

= $2,345 -$2295

=$50

therefore the amount left is $50

Answer:

i need help with that one

Step-by-step explanation:

Answer:

13,20,27,34

Step-by-step explanation:

6+7=13

14+7=20

20+7=27

27+7=34

Answer:

4 cups of flour and 6 batches

Step-by-step explanation:

if you look at the cups of flour you can tell that they're counting by 4 to. while the batches of cookies are counting by 6 take a look for yourself and you'll see it

Answer:

13

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

Answer:

(0,4)

Step-by-step explanation:

The y-intercept is 4

Answer:

5n-27     A

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

Step-by-step explanation:

1) If a farm has 15 rows of fruit trees with 7 trees in each row, the total number of trees in the farm will be 15*7 = 105 trees

If the last four rows of trees are cherry trees, the total numner of cherry trees will be 4 * 7 = 28 trees

Let the total trees in the farm = number of cherry trees + orange trees

orange trees = total trees - cherry trees

orange trees = 105 - 28

orange trees = 77 tress

Hence there are 77 orange trees in the farm

2) If at the bakery, there are 5 rows with 12 chocolate chip cookies on each tray, the total number of cookies on the tray will be 5 * 12 = 60 chocolate cookies

Also if there are 2 trays with 14 cookies on each tray, the total cookies on both tray s will be 2 * 14 = 28 cookies

If 7 cookies are sold, the number of cookies left will be 28 - 7 = 14 cookies

Hence 14cookies will be left over

Answer:

3/5, -12 12/15,  51/125

Step-by-step explanation:

just did it

Answer:

3/5; -12 12/25; 51/125

Step-by-step explanation:

Write the first one just like you would say it. You would read 0.6 as six tenths, therefore your answer is 6/10, but don't forget to simplify to 3/5.

Next, you have -12.48. -12 is going to be your whole number. However, you still have 0.48 left so you would write it just how you would say it. You would say it as forty-eight hundredths which is why you would write it as 48/100. Now you just have to simplify it into 12/25. Thus, your final answer would be -12 12/25.

Finally, you have 0.408 which is read as four hundred eight thousandths. Your fraction would then be 408/1000. Now simplify to 51/125.

Answer:

7,500 copies

Step-by-step explanation:

First, write the problems as equations. There will be one variable: copies (c):

Company A: .05c + 300

Company B: .01c + 600

In order to find when the companies charge the same amount, Company A = Company B. Using the transitive property you get:

Company A = Company B

.05c + 300 = .01c + 600

Now, you just need to solve for c:

.05c + 300 = .01c + 600

.05c = .01c + 300

.04c = 300

c = 7,500

In conclusion, the companies will charge the same amount of money when 7,500 copies are made in a month.

Answer: 21 minutes

Step-by-step explanation: A complete revolution has 360°. The tower rotates completely after 60 minutes, which means:

360° - 60 min

The restaurant rotated 126° while the visitor was at the tower, so using proportionality rule:

360° - 60 min

126° - t min

[tex]t=\frac{126*60}{360}[/tex]

[tex]t=\frac{126}{6}[/tex]

t = 21

The visitor was at the tower for 21 minutes.

Answer:

3 percent

Step-by-step explanation:

sorry if its wrong, hope this helped

Answer:

10

Step-by-step explanation:

(-2) x (-5) = 10 because 2 negatives cancel out a to create a positive

Answer:

Step-by-step explanation:

3x - 9 - (-5x + 8)

3x - 9 + 5x - 8

8x - 17

Answer:

Yes it is

Step-by-step explanation:

In order to find it, you just need to find the slope which the equation is y2-y1/x2-x1

Giving you the slope to be -5/3

and the b value is 16 bc it is 16 at 0

slope equation is y= mx + b

plug -5/3X+16 into your graphing calculator and see that it is a straight line and boom.

Answer:

y= 3

Step-by-step explanation:

-4 = -7 + y

+7    +7

-----------------

3=y