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4 years ago

Which expression is equivalent to 42+90?

Mathematics

1 answer:

MrRissso [65]4 years ago

4 0

Step-by-step explanation:

42+90 can be written in many ways.

Fore example, it can be written with double negatives, or even commutative property.

42-(-90) or 90+42

(21x2)+(45x2) or (6x7)+(3x30)

Sorry if it's wrong...

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Which value of x from the set {5, 6, 7, 8} makes this equation true? 3x = 24

Tju [1.3M]

Answer:

Value x = 8 make the equation true .

Step-by-step explanation:

Given : 3x = 24.

To find : Which value of x from the set {5, 6, 7, 8} makes this equation true?

Solution : We have given 3x = 24.

The equations are true when the Left hand side and right hand side of the equation are equal.

Then,

For x = 8 .

3 ( 8) = 24

24 = 24 .

Hence,

Left hand side = Right hand side.

Therefore, Value x = 8 make the equation true .

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3 years ago

A microscope was originally priced at $100 but went on sale for 10% off. If Adele bought the microscope and paid 10% sales tax,

AfilCa [17]

Answer:

$99

Step-by-step explanation:

First, it was on sale for 10% off. 10% = 0.1 = 1/10. 1/10 of 100 is 10, so we subtract 10 (because 10% off) to get $90. Then, the sales tax, which we add, is 10%. 1/10 of 90 is 9, so we add 9 to 90 to get our total to be $99

5 0

3 years ago

3. What is the value of (4/3)^3

Shtirlitz [24]

Answer:

64/27 = 2.37037037

Step-by-step explanation:

(4/3)^3

Calculate 4/3 to the power of 3 and get 64 /27

64/27

7 0

3 years ago

What is the measure of

Zolol [24]

Answer:

pretty sure its 55° because the total should be 180* and I know that C is a right angle aka 90° and 90 + 35 = 125 and 180-125=55

3 0

3 years ago

Find f(-2) for f(x)=2(4)^x

lesya692 [45]

For this case we have the following exponential function:
$f (x) = 2 (4) ^ x
$
To find the value of f (-2) what we must do is substitute the value of x = -2 in the given function.
We have then:
$f (x) = 2 (4) ^{-2}$
Then, rewriting the function we have:
$f (x) = \frac{2}{4^2}$
$f (x) = \frac{2}{16}$
Finally, simplifying we have:
$f (x) = \frac{1}{8}$
Answer:
The value of f (-2) is:
$f (x) = \frac{1}{8}$
option B

6 0

4 years ago

Read 2 more answers