2 years ago

I need help please!!!!!

Mathematics

1 answer:

rosijanka [135]2 years ago

3 0

Answer:

Step-by-step explanation:

6m+90=96m

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(X-3)(x+2)=0 find the zeros

Ivanshal [37]

Answer: Min = (0.5, −6.25)

Step-by-step explanation: Standard form:

x2 − x − 6 = 0

Factorization:

(x + 2)(x − 3) = 0

Solutions based on factorization:

x + 2 = 0 ⇒ x1 = −2

x − 3 = 0 ⇒ x2 = 3

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3 years ago

Identify the construction that the figure represents.

lesantik [10]

Answer: Congruent Angles

Step-by-step explanation:

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3 years ago

After reading 80% of her e-mails in her inbox, Danette still has M unread e-mails. Which of the following expressions could repr

sergey [27]

Answer:

(Choice A) 5M

Step-by-step explanation:

Let total no. of e-mails in inbox be x

Since she read 80 % of mails i.e 80 % of x

⇒ $80\% \times x$

⇒ $\frac{80}{100}\times x$

⇒ $0.8 x$

So, she read 0.8x e-mails.

So, remaining email = total e-mails - read e-mails

$=x-0.8x$

Since we are given that Danette still has M unread e-mails.

⇒ $M=x-0.8x$

⇒ $M=x(1-0.8)$

⇒ $M=x\times 0.2$

⇒ $\frac{M}{0.2}=x$

⇒ $\frac{10M}{2}=x$

⇒ $5M=x$

Thus the expression represent the number of e-mails Danette had in her inbox before she started reading is 5M.

Hence Choice A is correct.

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2 years ago

Can someone simplify 25-4-9x+2x ?

Sloan [31]

Answer:

21-7x

Step-by-step explanation: gather like terms

25-4=21 -9x+2x=-7x

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2 years ago

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Suppose a spherical balloon grows in such a way that after t seconds, its volume is V = 4 sqrt(t) cm3.

chubhunter [2.5K]

The volume at time t = 25 seconds
since V = 4 sqrt(t) cm3,
V(5)= 4*sqrt(25)cm^3=4*5=20cm^3

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3 years ago