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NARA [144]
2 years ago
5

3÷5(6×7) - 4Plz I need help​

Mathematics
2 answers:
myrzilka [38]2 years ago
8 0

Answer:

- 3 and 69/70

Step-by-step explanation:

3 ÷ 5(6 × 7) - 4

3 ÷ 5(40) - 4

3 ÷ 210 - 4

1/70 ÷ 4

- 3 and 69/70

ivolga24 [154]2 years ago
4 0

Answer:

21.2

Step-by-step explanation:

3/5(42)-4

0.6(42)-4

25.20-4

21.2

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I need help bruv. For the function y=x^2 - 5x - 6 .
lara [203]

Answer:

a. Vertex = (2.5,-12.25)

b. y-intercept = (0,-6)

c. x-intercept = (6,0) ; (-1,0)

Step-by-step explanation:

a.

Your equation is written as:

y = ax^{2} + bx +c

The easiest way to find the vertex is writing the equation this way:

y = a(x-h)^{2}+k

Being the vertex (h,k)

So first complete the square

y = x^{2} -5x -6 \\y = x^{2} - 2(2.5x) -6 \\y = x^{2} - 2(2.5x) +2.5^{2} - 2.5^{2} -6 \\y = (x^{2} -2(2.5x) + 2.5^{2}) -6.25 - 6 \\y = (x-2.5)^{2} -12.25

Vertex : (2.5,-12.25)

b.

To find the y-intercept you need to replace the equation when x = 0 and get y

y = (0)^{2} - 5(0) -6\\y = - 6

c.

To find the x-intercept you need to replace the equation when y = 0 and get x

0 = x^{2} - 5x -6 \\0 = (x-6)(x+1)\\x = 6\\x = -1

4 0
3 years ago
Daria sells televisions. She earns a fixed amount for each television and an additional 25$ if the buyer gets an extended warran
svet-max [94.6K]

Answer:

275 .do 25×11=275 because its 11 tv and $25 for a extended warranty

5 0
3 years ago
If you make an initial deposit of $1000 in an account that yields 5% interest
Genrish500 [490]

SI

$1 000 × 4 % × 10 = $400

CI

($1 000 × 1.04 ^10) - $1 000 = $1 480.24 - $1 000 = $480.24

Interest on interest only applies to Compound Interest.

Excluding year 1, which yields $40 [the same as SI] the interest on interest yields $480.24 - $40 = $440.24

<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>

7 0
2 years ago
The ratio of boys to girls in a class is 5:3. There are 32 students in the class. How many students are boys?
alina1380 [7]
Class ratio of girls to boys is 3:5
So there are 3 girls and 5 boys in 8 students
If there are 32 students, then 3/(3+5) * 32 = 12 girls, and 5/(3+5) * 32 = 20 boys


Hope it helps you?
8 0
2 years ago
A library shelf is 9 feet wide.a set of nature books fill 1/6 of the shelf space. each book in the set is 3/5 inch thick.how man
Charra [1.4K]
Area filled by nature books = 1/6 of 9 feet = 1/6 x 9 = 3/2 feet.

Number of nature books = 3/2 / 3/5 = 2.5 ≈ 3 books.
4 0
3 years ago
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