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3 years ago

Evaluate the following expression when x=-5 and y=7: 4x ^2-3y-10x

Mathematics

1 answer:

olasank [31]3 years ago

3 0

Yo vivo en Granada, una ciudad pequeña que tiene monumentos muy importantes como la Alhambra.

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Knut had picked strawberries during the summer holidays. First days he picked 9090 baskets of strawberries! The next day he was

jasenka [17]

Answer:

190 baskets of strawberries

Step-by-step explanation:

The question is incomplete as it didn't state what we are to determine from the information given.

Let's determine total amount picked in the three days.

1st day picked 90strawberries

Amount of strawberries on 2nd day = 2/3 of the amount picked 1st day

= (2/3)(90)

Amount of strawberries on 2nd day = 60 baskets of strawberries

Amount of strawberries picked on 3rd day = (2/3) of the amount picked 2nd day

= (2/3) (60)

Amount of strawberries picked on 3rd day = 40 basket of strawberries

Total amount picked for 3 days = 90+60+40

= 190 baskets of strawberries

4 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!

yKpoI14uk [10]

Answer:

yes, It is a right triangle

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Score for Question 3: ___ of 5 points)

Olenka [21]

Answer:

(a)6 Equilateral Triangles.

(b)30-60-90 triangle.

(c)See Attached Triangle in Figure 2

(d)Length of the short leg = 2cm.

(e)Length of the hypotenuse= 4cm.

(f)Length of the long leg= $2\sqrt{3}cm$

(g)Apothem.

(h)Height of the Equilateral triangle= $2\sqrt{3}cm$

(i)Area of One Equilateral triangle = $4\sqrt{3}cm^2$

(j)Area of Hexagon = $=24\sqrt{3}\:cm^2$

Step-by-step explanation:

(a)From Figure 1, there are 6 Equilateral Triangles.

(b)If we cut an equilateral down the middle (green line), we create a 30-60-90 triangle.

(c)Triangle Attached in Figure 2.

(d)The length of the short leg of one of the 30-60-90 triangle is 2cm.

(e)The length of the hypotenuse of one of the 30-60-90 triangle is 4cm.

(f)Length of the long leg

We use Pythagoras Theorem to find the length of the long leg of the right triangle.

$4^2=2^2+l^2\\l^2=4^2-2^2=12\\l=\sqrt{12}=2\sqrt{3}cm$

(g)The vocabulary word for the long side of the 30-60-90 called in the polygon (green line) is Apothem.

It is line segment from the <u>center to the midpoint of one of the sides of a polygon.</u>

<u>(h</u>)Height of the Equilateral Triangle= $2\sqrt{3}cm$

(i)Area of One Equilateral triangle

Base =4 cm, Height = $2\sqrt{3}cm$

Area=0.5X4X $2\sqrt{3}cm$

= $4\sqrt{3}\:cm^2$

(j)Area of Hexagon =Area of One Equilateral Triangle X 6

$=6X 4\sqrt{3}\\=24\sqrt{3}\:cm^2$

6 0

3 years ago

What is the vertex of f(x) = |x + 8| – 3?

Arte-miy333 [17]

Answer:

(-8,-3)

Step-by-step explanation:

This question is similar to the vertex form of a quadratic equation, so you can think of this equation like f(x) = (x-h)+k. Using this equation, you can determine the vertex (h,k) of |x+8|-3, which is (-8,-3).

5 0

4 years ago

Fun City charges an entrance fee of $10 and

nekit [7.7K]

For fun city 2 and for happy town 3 because 10+(2*2) and 5+(3*3)

8 0

3 years ago