Please help can't get this wrong.

Mathematics

1 answer:

Doss [256]3 years ago

3 0

Answer:

The answer should be A) exactly one zero

Step-by-step explanation:

The roots (zeros) are the x values where the graph intersects the x-axis. To fine the roots (zeros), replace y with zero and solve for x.

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Please help, I don't understand part a or b.

Serggg [28]

Part A
25-9=16
16/2=8
The length of the rope holding the top right corner of the banner to the post is 8 feet long

Part B
13-9-2= 2 for width
25-8=16 16/2=8 for length
Use the Pythagorean Theorem
$a^{2}$ + $b^{2}$ = $c^{2}$
$8^{2}+ 2^{2}= c^{2}$
64+4= $c^{2}$
68= $c^{2}$
$\sqrt{68}= \sqrt{c}$
34=c
The length of the rope from the bottom right corner of the banner to the post is 34 feet

5 0

3 years ago

In a lab a substance was cooled by 4 degrees c each hour for 16 hours what was the total change in temperature

nata0808 [166]

Answer:

64 degrees

Step-by-step explanation

multiply 4 by 16 because for every hour it was cooled another 4 degrees so 4 times 16 equals 64

8 0

3 years ago

Robin is making bows to sell at her mother's yard sale. She will use 3/4foot of red ribbon and 2/3foot of blue ribbon to make ea

emmainna [20.7K]

<h3>Ratio of length of red ribbon to blue ribbon is 9 : 8</h3>

<em><u>Solution:</u></em>

Given that,

Robin is making bows to sell at her mother's yard sale

From given,

$\text{Length of red ribbon } = \frac{3}{4}\ foot\\\\\text{Length of blue ribbon } = \frac{2}{3}\ foot$

<em><u>What is the ratio of the length of red ribbon to blue ribbon?</u></em>

$Red : blue = \frac{3}{4} : \frac{2}{3}\\\\Red : blue = \frac{3 \times 3}{4 \times 3} : \frac{2 \times 4}{3 \times 4}\\\\Red : blue = \frac{9}{12} : \frac{8}{12}\\\\Red : blue = 9 : 8$