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2 years ago

(Please. I wouldn't be asking if i didn't need help. I have been stuck for 6 hours straight.)

Mathematics

1 answer:

Andre45 [30]2 years ago

4 0

Answer:

Q1: 1:725

Q2: D

Q3: A

Q4: A=400:21 B=580:21

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Tuition for one year at the University of Houston is about $12,300. Azul plans to attend this university and will save money eac

vovikov84 [41]

Answer:

It should be C. 620

Step-by-step explanation:

7 0

3 years ago

PLEASE HELP!!!!! Factor completely 16x8 − 1

Delvig [45]

Answer:

see explanation

Step-by-step explanation:

This is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

16 $x^{8}$ = ( 4 $x^{4}$ )² ⇒ a = 4 $x^{4}$

1 = 1² ⇒ b = 1

Hence

16 $x^{8}$ - 1

= (4 $x^{4}$ )² - 1²

= (4 $x^{4}$ - 1)(4 $x^{4}$ + 1)

4 $x^{4}$ - 1 ← is also a difference of squares and factors as

(2x² - 1)(2x² + 1)

Thus

16 $x^{8}$ - 1

= (2x² - 1)(2x² + 1)(4 $x^{4}$ + 1 )

6 0

3 years ago

Read 2 more answers

Consider that a 1/2 cup serving of 1% cottage cheese is equivalent to 125 grams. If 1 ounce of cottage cheese is equivalent to 2

VikaD [51]

Answer:

4.42 ounces.

Step-by-step explanation:

We have been given that a 1/2 cup serving of 1% cottage cheese is equivalent to 125 grams. 1 ounce of cottage cheese is equivalent to 28.35 grams. We are asked to find the ounces in 1/2 cup serving.

We will use proportions to solve our given problem.

$\frac{\text{Ounce}}{\text{Grams}}=\frac{1}{28.25}$

Upon substituting our given values, we will get:

$\frac{\text{Ounce}}{125}=\frac{1}{28.25}$

$\frac{\text{Ounce}}{125}\times 125=\frac{1}{28.25}\times 125$

$\text{Ounce}=4.42477876$

Upon rounding to nearest hundredth, we will get:

$\text{Ounce}\approx 4.42$

Therefore, 1/2 cup serving contains 4.42 ounces.

7 0

3 years ago

Solve this equation pls

Aleksandr-060686 [28]

Answer:

${ \rm{y = \frac{3 \sqrt{x} + 2x}{ {4x}^{2} } }} \\$

• We are gonna use the quotient rule

${ \boxed{ \bf{ \frac{dy}{dx} = \frac{ {\huge{v} } \frac{du}{dx} - { \huge{u}} \frac{dv}{dx} }{ {v}^{2} } }}} \\$

u is (3√x + 2x)
v is 4x²
du/dx is 3/2√x
dv/dx is 8x

• Therefore:

${ \rm{ \frac{dy}{dx} = \frac{(4 {x}^{2})( \frac{3}{2 \sqrt{x} }) - (3 \sqrt{x} + 2x)(8x) }{16 {x}^{4} } }} \\ \\ { \rm{ \frac{dy}{dx} = \frac{(6 {x}^{2})( {x}^{ - \frac{1}{2} } ) - (24 {x}^{ \frac{3}{2} } + 16 {x}^{2} ) }{16 {x}^{4} } }} \\ \\ { \rm{ \frac{dy}{dx} = \frac{ 6 {x}^{ \frac{3}{2} } - {24x}^{ \frac{3}{2} } - {16x}^{2} }{16 {x}^{4} } }} \\ \\ { \rm{ \frac{dy}{dx} = \frac{ - 18 {x}^{ \frac{3}{2} } - 16 {x}^{2} }{16 {x}^{4} } }} \\ \\ { \rm{ \frac{dy}{dx} = - 2 {x}^{ \frac{3}{2} } (9 + 8 {x}^{ \frac{4}{3} } ) \div 16 {x}^{4} }} \\ \\ { \boxed{ \boxed{ \rm{ \: \: \frac{dy}{dx} = - \frac{8 \sqrt{ {x}^{ \frac{8}{3} }} + 9}{8x {}^{ \frac{8}{3} } } \: \: }}}}$

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2 years ago

Read 2 more answers

Which ordered pair is a solution of the inequality?

Greeley [361]

Answer:

Step-by-step explanation:

$y-1$

8 0

3 years ago