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2 years ago

Find the vertex of y = 5x² - 4

Mathematics

1 answer:

igomit [66]2 years ago

7 0

Answer: (0,-4)

explanation: write in vertex form and use this form to find the vertex ( h , k )

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James practiced piano for 48 minutes. Alisa practiced for 5 times as long as James. How many minutes did Alisa practice? How man

wariber [46]

48(5)=n
when n= the amount of time that Alisa practiced the piano.
Alisa practiced for 240 minutes.

48+240= t
Where t stands for total minutes altogether.
In total, they practiced 288 minutes

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2 years ago

Does favorite food depend on your gender? A survey asks a group of college students about their favorite foods. It also groups t

Oxana [17]

Answer:

Yes, it does

Step-by-step explanation:

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2 years ago

Lori creates the following design for a T-shirt.

kakasveta [241]

<u>Solution-</u>

From the figure,

AE = 2.4

EB = 2.8

BC = 11.7

Area of rectangle 1 = 8.68 sq.in

$\Rightarrow FH \times HI=8.68$

$\Rightarrow EB \times HI=8.68$ (∵ sides of the rectangle 2)

$\Rightarrow 2.8 \times HI=8.68$

$\Rightarrow HI=3.1$

Area of Triangle 1 = 6.48 sq.in

$\Rightarrow \frac{1}{2}\times AE \times EG= 6.48$

$\Rightarrow \frac{1}{2}\times AE \times (EF+FG)= 6.48$

$\Rightarrow \frac{1}{2}\times AE \times (EF+HI)= 6.48$ (∵ sides of the rectangle 1)

$\Rightarrow EF+3.1= 5.4$

$\Rightarrow EF=2.3$

$\Rightarrow BH=2.3$ (∵ sides of the rectangle 2)

$BC = BH+HI+IC$

$\Rightarrow 11.7= 2.3+3.1+IC$

$\Rightarrow IC=6.3$

The area of Rectangle 2,

$=EB\times BH =2.8\times 2.3=6.44\ sq.in$

The area of Triangle 2,

$\frac{1}{2}\times GI \times IC=\frac{1}{2}\times EB \times IC=\frac{1}{2}\times 2.8 \times 6.3=8.82\ sq.in$

The area of the whole figure = Area of Triangle 1 + Area of rectangle 1 + Area of Triangle 2 + Area of rectangle 2

= 6.48+8.68+8.82+6.44=30.42 sq.in

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3 years ago

the temperature at 3:00 pm was 35°F. The temperature had dropped 45 degrees by 9:00 pm. What was the tempeture in degrees fahren

Natali [406]

-10 degrees Fahrenheit
35-45=-10

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2 years ago

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katrin2010 [14]

The answer should be A

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2 years ago