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3 years ago

Ill give brainliest if correct

Mathematics

2 answers:

Elza [17]3 years ago

8 0

C because if you divide 3/12 you get .25 but 4/18 is .22, which is the better deal

Kaylis [27]3 years ago

7 0

Answer:

no its A. kramer sells apples for $0.22 each

Step-by-step explanation:

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4=x^2 -5x-1 <br> HOW MANY X INTERCEPTS ARE THERE ?

diamong [38]

Answer:

2 x values

x = 5.85410196 …

x = − 0.85410196 …

Step-by-step explanation:

6 0

3 years ago

SURFACE AREA OF RECTANGULAR PRISMS

Sergeeva-Olga [200]

Answer:

Lateral is 196

Step-by-step explanation:

7 cm times 10 cm times 2.8 cm

and for the surface it is length times width

7 0

3 years ago

Intergal of 8sin^4(x)dx

Romashka-Z-Leto [24]

$\int\limits8sin^4(x)dx =$

Take the constant out $\int\limits a*f(x)dx=a* \int\limitsf(x)dx$

$= 8 \int\limits sin^4(x)dx$

$\int\limits sin^4(x)dx = - \frac{cos(x)sin^3(x)}{4} = \frac{3}{4} \int\limits sin^2(x)dx$

$= 8( -\frac{cos(x)sin^3(x)}{4}+ \frac{3}{4} \int\limits sin^2(x)dx)
$

Use the following identify : $sin^2(x) = \frac{1-cos(2x)}{2}$

$= 8(- \frac{cos(x)sin^3(x)}{4} + \frac{3}{4} \frac{1}{2}( \int\limits 1 - cos(2x)dx)$

$\int\limits 1dx = x$

$\int\limits cos(2x)dx = \frac{1}{2} sin(2x)$

Apply the sum rule :

$=8(- \frac{cos(x)sin^3(x)}{4} + \frac{3}{4} \frac{1}{2} (x- \frac{1}{2} sin(2x))$

Simplify :

$8( \frac{3}{8} (x- \frac{1}{2} sin(2x)) - \frac{1}{4} sin^3(x)cos(x))$

Therefore add a constant to the solution:

$= 8 ( \frac{3}{8} (x- \frac{1}{2} sin(2x)) - \frac{1}{4} sin^3(x)cos(x))+C$

hope this helps!

3 0

2 years ago

Jada’s sister works in the furniture store. The store bought a table for $200, and sold it for $350. What percent was the mark u

evablogger [386]

Answer:

75%

Step-by-step explanation:

350-200=150

150 is 75% of 200

7 0

2 years ago

Read 2 more answers