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3 years ago

Identify the graph of g(x) = –x2 + 9x – 20 from the choices below.

Mathematics

1 answer:

Lena [83]3 years ago

8 0

Answer:

(x-5)(x-4)−(x−5)(x−4)

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Y=x^2+8x+6 16x-2y=-44

Naddik [55]

What? Is that two problems? I'll change my answer, give me my answer.

3 0

3 years ago

Can someone please clearly explain Question 7 and how to work this out?

SVETLANKA909090 [29]

Make x the subject means you need to solve for x

y = ax^2 solve for x

divide both side by a

y/a = ax^2/a

simplify
y/a = x^2
so
x = square root (y/a)

7 0

3 years ago

The eqution of the diagonal of a parallelogram is 3y=5x +k. The two opposite vertices of a parallelogram are the points (1,-2),

astraxan [27]

Answer:

$k = 1$

Step-by-step explanation:

Given

$3y = 5x + k$

Opposite points: $(1,-2)$ and $(-2,1)$

Required

Find k

First, calculate the midpoint of the opposite points.

$(x,y) = 0.5(x_1 + x_2,y_1 + y_2)$

This gives:

$(x,y) = 0.5(1 -2,-2 + 1)$

$(x,y) = 0.5(-1,-1)$

Open bracket

$(x,y) = (-0.5,-0.5)$

The equation $3y = 5x + k$ becomes:

$3 * -0.5 = 5 * -0.5 + k$

$-1.5 = -2.5 + k$

Solve for k

$k = 2.5-1.5$

$k = 1$

4 0

2 years ago

What is 5 1/4- 13/9?

suter [353]

The answer is 29/34 your answer

8 0

3 years ago

Simone measures the width of one of cardboard strip as 1/2 yard. A second cardboard strip measures 5/6 yard in width. Estimate t

Zepler [3.9K]

Answer:

The correct option is C. About 1 on the side with the 1 on top and 4 on the bottom yard.

Step-by-step explanation:

Consider the provided information.

Simone measures the width of one of cardboard strip as 1/2 yard.

A second cardboard strip measures 5/6 yard in width.

We need to find the combined width.

The combined width of the cardboard strip:

$\frac{1}{2} + \frac{5}{6}=\frac{8}{6}=1\frac{1}{3}$

$1\frac{1}{3}$ is closer to $1\frac{1}{4}$ as compare to $1\frac{1}{2}$

Hence, the correct option is C. About 1 on the side with the 1 on top and 4 on the bottom yard.

3 0

3 years ago