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2 years ago

11

Just by looking at y = −x 2 + 1, how do you know that it does not graph a line? A) x is squared. B) There is no constant term. C

) There is an increase of 1. D) The coefficient is − 1.

1 answer:

Nataliya [291]2 years ago

3 0

Answer is x is squared
A
that would make a parabola

A is the answer

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Simplify:<br> x2 +5x-14<br> x2+10x+21

goblinko [34]

Answer:

4x + 15x + 7

Step-by-step explanation:

x2 + x2 = 4x

5x + 10x = 15x

-14 + 21 = 7

5 0

2 years ago

Heidi and Andrew designed two raised flowerbeds for their garden. Heidi's flowerbed was 5 feet long by 3 feet wide, and Andrew's

d1i1m1o1n [39]

Answer:

$V=90\ ft^3$

Step-by-step explanation:

-Given the two heights are similar:

#Heidi's flowered bed dimensions and volume is calculated as:

$v=lwh$

$=5\times 3\times 2\\\\=30\ ft^3$

#The width of Andrew's is twice Heidi's. The width and volume is thus calculated as:

$w_a=2\times 3=6 \ ft\\\\V_a=lwh\\\\=5\times 6 \times 2\\\\=60\ ft^3$

#Total soil volume of the soil used is determined by summing the two different flowerbed volumes:

$V=V_h+V_a\\\\=30+60\\\\=90 \ ft^3$

7 0

3 years ago

Simplify y 2 + 4y - 16y + 3y 2.

algol13

First, add or subtract all variables
y2 + 4y - 16y + 3y = -7y
-7y + 2 is your answer

5 0

3 years ago

Read 2 more answers

Help on this question

Lostsunrise [7]

start with elimination. 8 x 8 is only 64 so C and D dont make sense. The are of the circle is pi(r)². so the radius is 4 squared then multiply by pi and devide by 5 to get the 5 equal parts. So B 10.

3 0

3 years ago

Help please! Need help solving

NISA [10]

For the perimeter you have to consider the EXTERNAL SHAPE ONLY:

a) the perimeter of half a circle WITHOUT ITS DIAMETER is:
π.R - 2R → 3.14x1.5 - 2x1.5 → 1.71 cm

b) the perimeter of the rectangle WITHOUT THE UPPER SIDE is:
2.5+3+2.5 = 8 cm

Hence the perimeter of the figure is 1.71 + 8 = 9.71 cm

2) Area of the figure:
Area of half circle is π.R²/2 →3.14 x (1.5)²/2 → Area half circle = 3.5325 cm²
Area of rectangle = 2.5 x 3 = 7.5 cm²
Total area = 3.5325 + 7.5 = 11.0325 ≈ 11 cm²

3 0

3 years ago