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2 years ago

Let p= x^2-7.

Mathematics

1 answer:

Advocard [28]2 years ago

8 0

Since p = x² - 7, you can substitute/plug in p for x² - 7

So:

(x² - 7)² - 4x² + 28 = 5

(p)² - 4x² + 28 = 5 You can factor out -4 from (-4x² + 28)

p² - 4(x² - 7) = 5 Plug in p

p² - 4p = 5 Subtract 5

p² - 4p - 5 = 0 Your answer is C

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A carpenter is building a unique jewelry box in the shape of a right triangular prism. The base has measurements of 4 inches, 3

BlackZzzverrR [31]

Answer: The carpenter will need 84 square inches of wood.

In this problem we are looking for the surface area of the jewelry box. This box has 5 faces. The two triangles at each end and the 3 rectangle pieces between them.

The sides of the triangles are 3, 4, 5 which always forms a right triangle with legs of 3 and 4. Use the formula for the area of a triangle, we have 3 x 4 / 2 = 6. The area of each triangle is 6 square inches.

Now, the three sides, each one has a height of 6.
3 x 6 = 18
4 x 6 = 24
5 x 6 = 30

If we add all the sides together, we get an area of 84 square inches.
6 + 6 + 18 + 24 + 30 = 84

7 0

3 years ago

Suppose the null hypothesis, H0, is: Darrell has enough money in his bank account to purchase a new television. What is the Type

seropon [69]

<h2>Answer with explanation:</h2>

In statistics, The Type II error occurs when the null hypothesis is false, but fails to be rejected.

Given : Suppose the null hypothesis, $H_0$ , is: Darrell has enough money in his bank account to purchase a new television.

Then , Type II error in this scenario will be when the null hypothesis is false, but fails to be rejected.

i.e. Darrell has not enough money in his bank account to purchase a new television but fails to be rejected.

3 0

3 years ago

SOLVE X SQUARED ADD 5X -14. ALL DIS HOMEWORK IS SOOO ANNOYING EXTRA CREDIT FOR PEOPLE WHO GET ME DE MARKKKSSS!!!!! PLS I DE BEGG

MrRissso [65]

Answer:

X= (7;-2)

Step-by-step explanation:

X2+5X-14

(X-7)(X+2)

X= 7;-2

5 0

3 years ago

Use the Polygon tool to draw an image of the given polygon under a dilation with a scale factor of 14 and center of dilation (0

puteri [66]

The points are (168, 168) , (168,56) , (112,0) , (70,112)

Given a scale factor is 14 and the center of dilation (0,0)

We need to find the Points using the scale factor and polygon tool

Now to find the new points the equation is

(old points - dilation center)*scale factor + dilation center

As we know the origin is the dilation center which simplifies to

(old point)*dilation center

(12,12) * 14 = (168,168)

(12,4) * 14 = (168, 56)

(8,0)*14 = (112, 0)

(5,8) *14 = (70, 112)

Hence the new points are (168, 168) , (168,56) , (112,0) , (70,112)

Learn more about center of dilation here

brainly.com/question/14101746

#SPJ10

4 0

2 years ago

Captain Liz is going to load her cruise ship with bags of sugar. She has room for 19 bags of sugar. She has allotted for 121 pou

Bad White [126]

: 1) If you were going to solve these, you would set them up like this. s+p=19 7s+10p=121 among the choices, b is the only one that is equivalent to one of these equations 2) The problem looks a little confusing. If the price is per box then they easily make $275. 8b+9h=53 20*8b+30*9h=275 If it's per batch, the answer is B. 3. x^2+y^2=16 y=x+4 solve the first equation for y y=√16-x^2 x+4=√16-x^2 (x+4)^2=16-x^2 x^2+8x+16=16-x^2 2x^2+8x=0 2x(x+4)=0 x=0 or x=-4 (be carefull i copyed and pasted the answer)

7 0

3 years ago