3 years ago

Of 75is90 =120 true or false

Mathematics

1 answer:

Mariana [72]3 years ago

8 0

Answer:

False

Step-by-step explanation:

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Solve : 4² ( 4³ ) with work shown

stepan [7]

Answer:

1024

Step-by-step explanation:

4²(4³)

4×4(4×4×4)

16(16×4)

16(64)

16×64

=1024

7 0

2 years ago

Find the z-score such as 88% of the area under the normal curve is to the left of the z-score

jok3333 [9.3K]

If you have a calculator with statistical functions, that's the way to go.

On my TI-83, I typed in invNorm(0.88) and got the result z = 1.17.

88% of the area under the normal curve is to the left of z = 1.17.

6 0

2 years ago

FlybynightSavings.com is offering a savings account that pays 28% compounded continuously. How much interest would a deposit of

Helga [31]

P =$3000, r = 28% , t = 5 years
A = 3000.e^(0.28)(5) = 3000.(4.0551) = $12,165.60

5 0

3 years ago

Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

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3 years ago

Solve by factoring 6x^2 +13x -28 =0

Sauron [17]

Answer:

x=4/3 or x=-7/2

Step-by-step explanation:

(3x-4)(2x+7)

8 0

2 years ago

Read 2 more answers