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3 years ago

PLEASE HELP, Don’t know how to solve.

1 answer:

5 0

Let's just put it in vertex form so we know what it is

y=x^2+2x+1

y-1=x^2+2x

y-1+1=x^2+2x+1

y=(x+1)^2

So the vertex is (-1, 0), and since the coefficient is 1 is positive this vertex is the absolute minimum for the parabola.

So plot points for x={-3,-2,0,1} to get

(-3, 4),(-2, 1),(-1, 0),(0, 1),(1, 4)

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The question is in the picture i uploaded!!

torisob [31]

Answer:

Step-by-step explanation:

a) there are 6 red out of 18 total. 6/18 = 1/3

b) there are 14 that are not blue out of 18. 14/18 = 7/9

6 0

2 years ago

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Lisa is selling candles and soaps or a fundraiser. She sells a total of 24 items for a total of $112. If the candles sold for $4

Tcecarenko [31]

8 candles and 16 bars of soap.

You can solve this by setting up a system of equations.

x + y = 24
4x + 5y = 112

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3 years ago

A clothing store orders 15 boxes of shirts to restock their shelves. There are 125 shirts in each box. How many shirts does the

KonstantinChe [14]

Answer:

15x125=1875 shirts

Step-by-step explanation:

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3 years ago

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Rally sold 30 flower baskets at a market. She purchased 30 baskets for $142.65, 185 yards of ribbon for $.07 per yard, and $252.

rosijanka [135]

Answer:

She spent 142.65 for baskets, 252.50 for flowers and 185 * 0.07 or 12.95 for ribbons for a total outlay of 408.10. Since she made 30 baskets, that is 408.10/30 = 13.60 1/3 per basket.

If she sold all 30 for 25.99 each, that is 779.70 for a profit of 361.60

Step-by-step explanation:

7 0

3 years ago

Suppose ABC is a right triangle with sides a, b, and c and right angle at C. Find the unknown side length using the Pythagorean

Leno4ka [110]

Answer:

a = $\sqrt{7}$

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.:

<em>Suppose ABC is a right triangle with sides a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the values of the six trigonometric functions for angle B. when b=3 and c=4</em>.

My answer:

We will Pythagoras theorem, which states that the sum of squares of two legs of a right triangle is equal to the square of the hypotenuse of right triangle. Because the question says that ABC is a right triangle.

$a^2+b^2=c^2$

Given that: b=3 and c=4

$a^2+3^2=4^2a^2+9=16a^2+9-9=16-9a^2=7$

so a = $\sqrt{7}$

We know that tangent relates opposite side of a right triangle with adjacent side.

$\text{tan}(B)=\frac{a}{b}\\\text{tan}(B)=\frac{\sqrt{7}}{3}$

Please have a look at the attached photos.

3 0

4 years ago