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3 years ago

5

Write an algebraic expression to answer the question below. if 10 calculators cost d dollars, how much, in dollars, does each ca

lculator cost?

1 answer:

kupik [55]3 years ago

4 0

It should cost 8 dollars all together.

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IM DUMB.Someone smart helppppp ill give brainlest

Montano1993 [528]

Answer:

x=45

Step-by-step explanation:

Each triangle had 180 degrees in all and the picture shows it has a right angle. 180-90=90

90/2=45

Because there are two angles left without measurement.

3 0

3 years ago

A hot air balloon was flying at an altitude of 300 meters when the pilot decided to land by descending at a rate of 2 meters per

krok68 [10]

Answer:

The answer is "150 seconds".

Step-by-step explanation:

$\to distance = 300 \ meter\\\\\to speed = 2 \ \frac{m}{s} \\\\\ formula: \\\\ \bold{speed = \frac{distance}{time}}\\\\$

$time= \frac{distance}{speed}\\\\$

$=\frac{300}{2}\\\\=150 \ seconds$

7 0

3 years ago

A binomial event has n = 50 trials. The probability of success for each trial is 0.60. Let x be the number of successes of the e

babunello [35]

Answer:

30 and 3.4641

Step-by-step explanation:

The mean of a binomial distribution is:

μ = np

And the standard deviation of a binomial distribution is:

σ = √(npq)

Here, n = 50, p = 0.60, and q = 0.40.

μ = np = 50 × 0.60 = 30

σ = √(npq) = √(50 × 0.60 × 0.40) = 3.4641

3 0

2 years ago

Read 2 more answers

Perform the following calculations without rewriting the numbers in decimal form.

RSB [31]

Answer:

Answer will be $140\times 10^{13}$

Step-by-step explanation:

We have to perform the calculation $(1.42\times 10^{15}-2\times 10^{13})$ without changing into decimal

$1.42\times 10^{15}$ can be written as $142\times 10^{13}$

So $1.42\times 10^{15}-2\times 10^{13}=(142\times 10^{13}-2\times 10^{13})$

Now taking $10^{13}$ common

$10^{13}(142-23)=140\times 10^{13}$

6 0

3 years ago

The linear function has the domain (-2, -1, 0, 1, 2). Find the range or output of. h(x) = 2x + 3

lisov135 [29]

If the linear function has the domain (-2, -1, 0, 1, 2). Then the range of the function h(x) = 2x + 3 will be (-1, 1, 3, 5, 7).

<h3>What are domain and range?</h3>

The domain means all the possible values of x and the range means all the possible values of y.

The function is given as

h(x) = 2x + 3

The linear function has the domain (-2, -1, 0, 1, 2).

For x = -2

h(-2) = 2 (-2) + 3

h(-2) = -1

For x = -1

h(-1) = 2 (-1) + 3

h(-1) = 1

For x = 0

h(0) = 2 (0) + 3

h(0) = 3

For x = 1

h(1) = 2 (1) + 3

h(1) = 5

For x = 2

h(2) = 2 (2) + 3

h(2) = 7

More about the domain and range link is given below.

brainly.com/question/12208715

#SPJ1

7 0

2 years ago