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Airida [17]
3 years ago
12

Help asap!!!!!!!

Mathematics
1 answer:
azamat3 years ago
7 0

Answer:

C and D

Step-by-step explanation:

So from the equation <em>y = 1.26x + 9.49</em>  we can gather that <em>9.49</em> is an initial value because it has to be added to the number with a variable <em>( 1.26x)</em>

Because <em>1.26</em>  has a variable of <em>x  </em>and x represents a week, we know that the number<em> 1.26 </em>will increases in value depending on how many weeks have passed.

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PLEASE HELP WITH MATH QUESTION!! EXPLANATION NEEDED TOO!
Dovator [93]

Answer:

Matt should have factored out the leading coefficient 2 on the second step before completing the square

Step-by-step explanation:

To complete the square, you must first factor the leading coefficient from the first two terms.

y = 2x² − 10x − 4

y = 2 (x² − 5x) − 4

y = 2 (x² − 5x + 25/4 − 25/4) − 4

y = 2 (x² − 5x + 25/4) − 25/2 − 4

y = 2 (x − 5/2)² − 33/4

8 0
3 years ago
Suppose planet A's diameter is approximately 8 times planet B's and both bodies are spheres. What is the ratio of their volumes?
lana [24]

Answer:

The ratio of planet B's volume to planet A's volume is 1:512 or 1/512

Step-by-step explanation:

Volume of sphere = 4/3 π r^3

r = d/2

Radius of palnet A = 8/2 = 4

Radius of planet B = 1/2

Since 4/3 π is same in both volumes so, they cancel out when finding ratio.

Now ratio depends on radius cube of both planets

Volume of Planet B : Volume of Planet A

4/3 π(1/2)^3 :  4/3 π(4)^3

Cancelling  4/3 π on both sides

1/8 : 64

Multiply 8 on both sides

1 : 512

So, The ratio of planet B's volume to planet A's volume is 1:512 or 1/512

6 0
2 years ago
(b) one dihedral angle in methyl formate relates the plane containing the o=c–o bonds to the plane containing the c–o–c bonds. i
Nuetrik [128]

Answer:

Step-by-step explanation:

Methyl formate sometimes is also known as methyl methanoate. The removal of an anion from formate result in formic acid. So, we can simply say that methyl formate is a methyl ester of formic acid. Esters are named as alkyl derivates. Methyl formate is a colorless volatile liquid with a pleasant smell that is slightly soluble in water.

However, a dihedral angle is an angle that exists between pairs of chemical bonds separated by a third bond.

From the images attached below, we will see how methyl formate connects to the plane at an angle of 0° and 180°.

6 0
3 years ago
Subtract and simplify: (10x4 – 2x + 7) – (6x4 + 2x3 – 4x2 – 1) A. 4x4 – 2x3 + 4x2 – 2x + 6 B. 4x4 + 2x3 – 4x2 – 2x + 8 C. 4x4 –
Masja [62]
(10x^4  - 2x + 7) - (6x^4 + 2x^3 - 4x^2 - 1)=

= 10x^4-2x+7-6x^4-2x^3+4x^2+1=\\\\ = 4x^4-2x^3+4x^2-2x+8
8 0
3 years ago
What is the answer to x-9=-15+7x
jenyasd209 [6]

Answer:

x=1/4

Step-by-step explanation:

x-9=-15+7x (add x to both sides)

-9=-15+8x (Add 15 to both sides)

6=8x (divide by 8 from both sides)

.75=x in fraction 1/4

x=1/4

4 0
3 years ago
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