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3 years ago

What is the value of z in the equation 3 - 7 = 14? (2 points) 03 4 07 21

Mathematics

1 answer:

Hunter-Best [27]3 years ago

3 0

Answer:

Step-by-step explanation:

3z - 7 = 14

3•7=21

21 - 7 = 14

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The amount of bacteria in a fish tank was 830. After 5 hours, the amount of bacteria is 3202.

alina1380 [7]

Answer: 37.92

Step-by-step explanation: We know that 3202 / 5 = 640.4.

We subtract that by 830 to get (830 - 640.4 =) 189.6. Then we do / by five again to get 37.92. That is the answer.

3 0

2 years ago

There are 36 pencils in 6 packs. Igor wants to know how many pencils are in 1 pack. Elsa wants to know how many pencils are in 3

Paraphin [41]

Answer:

18 pencils in 3 packs.

Step-by-step explanation:

Assuming that each pack will have the same amount of pencils. It is given that there are 36 pencils in all when one has 6 packs. Find the amount in each pack by dividing (total amount of pencils)/(amount of packs) = Amount of pencils per pack:

36/6 = 6

There are 6 pencils in each pack.

Now, Elsa wants to know how much pencils are in 3 packs. Multiply the amount of packs with the amount of pencils in each pack:

Total amount of pencils = amount of packs (3) x amount of pencils per pack (6)

= 3 x 6

= 18

There are 18 pencils in 3 packs.

8 0

3 years ago

What is the arc measure of abc in degrees

Virty [35]

Given:

The measure of arc AB is (4y + 6)°

The measure of arc BC is (20y - 11)°

The measure of arc AC is (7y - 7)°

We need to determine the measure of arc ABC.

Value of y:

The value of y is given by

$m \widehat{AB}+m \widehat{BC}+ m \widehat{AC}=360$

Substituting the values, we get;

$4y+6+20y-11+7y-7=360$

Adding the like terms, we have;

$31y-12=360$

Adding both sides of the equation by 12, we have;

$31y=372$

$y=12$

Thus, the value of y is 12.

Measure of arc ABC:

The measure of arc ABC can be determined by adding the measure of arc AB and arc BC.

Thus, we have;

$m \widehat{ABC}=m \widehat{AB}+ m \widehat{BC}$

$m \widehat{AB}+m \widehat {BC}=4y+6+20y-11$

$=24y-5$

Substituting y = 12, we get;

$m \widehat{AB}+m \widehat {BC}=24(12)-5$

$=288-5$

$m \widehat{AB}+m \widehat {BC}=283^{\circ}$

Thus, the measure of arc ABC is 283°

6 0

3 years ago

If Mr. Smith allowed you to retake your final exam , what score would you have to get on the final exam to make at least a 90% i

Aleks [24]

It depends on how many questions there are.

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2 years ago

What is equivalent to

eimsori [14]

Answer : The expression which is equivalent to $\sqrt[4]{9}^{\frac{1}{2}x}$ is $9^{(\frac{1}{8}x)}$ .

Step-by-step explanation :

The given expression is:

$\sqrt[4]{9}^{\frac{1}{2}x}$

As we know that:

$\sqrt[4]{x} =x^{\frac{1}{4}}$

So, by solving the above expression, we get:

$\Rightarrow 9^{(\frac{1}{4}\times \frac{1}{2}x)}$

By multiplying the power of 9, we get the following expression.

$\Rightarrow 9^{(\frac{1}{8}x)}$

Hence, the expression which is equivalent to $\sqrt[4]{9}^{\frac{1}{2}x}$ is $9^{(\frac{1}{8}x)}$ .

6 0

3 years ago