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3 years ago

8 mins the product of 5 and n; n=4

Mathematics

1 answer:

Art [367]3 years ago

6 0

Assuming that you meant minus instead of "mins",
The answer is 12.
5*4=20 and 20 - 8 = 12

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Please help with this math problem

dlinn [17]

I think it’s a I’m not really sure but I think

7 0

3 years ago

A study records the lengths of pregnancy (in days) of 500 women. The data is normally distributed with a mean of 266 days and a

VashaNatasha [74]

Answer:

371 women had their pregnancy between 250 days and 282 days in length.

di po ako sure sa answer ko, but it is based on what I remembered.

Step-by-step explanation:

z=532-266

16

√500

= 371.74 or 371

4 0

2 years ago

Let f(x) = (5)^x+1 .Evaluate f (-3) without using a calculator

rewona [7]

Answer:

$f\left(-3\right)=\frac{126}{125}$

Step-by-step explanation:

Given

$f\left(x\right)\:=\:\left(5\right)^x+1$

Putting x = -3 to find f(-3)

$f\left(-3\right)\:=\:\left(5\right)^{\left(-3\right)}+1$

$5^{-3}=\frac{1}{125}$ ∵ $\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}$

$f\left(-3\right)=\frac{1}{125}+1$

$\mathrm{Convert\:element\:to\:fraction}:\quad \:1=\frac{1\cdot \:125}{125}$

$f\left(-3\right)=\frac{1\cdot \:\:125}{125}+\frac{1}{125}$

$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}$

$f\left(-3\right)=\frac{1\cdot \:\:125+1}{125}$

$f\left(-3\right)=\frac{126}{125}$ ∵ $1\cdot \:125+1=126$

Thus,

$f\left(-3\right)=\frac{126}{125}$

6 0

3 years ago

Alexa is planning to drive across the United States in

ivann1987 [24]

Answer:

a=112

b=6

c=280

Step-by-step explanation:

you just plug the number into the equation

28x=y

where x is the gallons

and y is the total miles

8 0

3 years ago

Read 2 more answers

7 divide by k in algebric expression

Salsk061 [2.6K]

7 devide by k in algebric function = 7/k

4 0

3 years ago