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3 years ago

10+2b-4+5b = ( )b+( ) help please!!!

Mathematics

2 answers:

Yuri [45]3 years ago

5 0

Answer:

(7)b+(6)

Step-by-step explanation:

you add the like terms(b), then subtract the constants.

bagirrra123 [75]3 years ago

3 0

The solution is (7)b+(6)

Hope it helps!

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If the ratio of sides of 2 squares is 3:5, the ratio of their areas is 9:15<br><br>True or False

Kryger [21]

Answer:

The answer is false

Step-by-step explanation:

3.5 x 2=7

8 0

3 years ago

vova2212 [387]

Answer: I do think the answer is C

Step-by-step explanation: I agree with your choice.

7 0

3 years ago

Read 2 more answers

Can anyone explain how to do this? The answer isn't as important as the explanation. My teacher gave us a video w/o an example l

solong [7]

Answer:

x = 182.53

Step-by-step explanation:

Use trigonometric ratios to find the whole side length (a) adjacent to 20° and the side length (b) adjacent to 57° respectively. Then find the difference. That would give you the value of x. That is: a - b = x

Let's solve.

✍️Finding the whole side length adjacent to 20°:

Opp = 87

Adjacent length = ? = a

$\theta = 20$

Thus,

$tan(\theta) = \frac{opposite}{adjacent}$

Plug in the values

$tan(20) = \frac{87}{a}$

Multiply both sides by a

$tan(20) \times a = \frac{87}{a} \times a$

$tan(20) \times a = 87$

Divide both sides by tan(20)

$\frac{tan(20) \times a}{tan(20)} = \frac{87}{tan(20)}$

$a = \frac{87}{tan(20)}$

$a = 239.03$

Finding the side length adjacent to 57°:

Opp = 87

Adjacent length = ? = b

$\theta = 57$

Thus,

$tan(\theta) = \frac{opposite}{adjacent}$

Plug in the values

$tan(57) = \frac{87}{b}$

Multiply both sides by b

$tan(57) \times b = \frac{87}{b} \times b$

$tan(57) \times b = 87$

Divide both sides by tan(57)

$\frac{tan(57) \times b}{tan(57)} = \frac{87}{tan(57)}$

$b = \frac{87}{tan(57)}$

$b = 56.50$

Therefore:

x = a - b

x = 239.03 - 56.50

x = 182.53

4 0

3 years ago

For a parallel structure of identical components, the system can succeed if at least one of the components succeeds. Assume tha

Dennis_Churaev [7]

Using the probability concept, we have that:

a) It would not be unusual to observe one component fail, since the probability that one component fails is greater than 0.05.

b) It would be unusual to observe two components fail, since the probability that two components fail is less than 0.05.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>. If a probability is less than 0.05, the event is considered unusual.

In this problem, the probabilities are given as follows:

0.21 probability that one component fails, hence not unusual.

(0.21)² = 0.0441 probability that two components fail, hence unusual.

More can be learned about probabilities at brainly.com/question/14398287

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5 0

2 years ago

HELLP THIS IS FOR FORMULAS AND IDK WHAT TO DOOO

4vir4ik [10]

Answer:

G=125 X + 50

Step-by-step explanation:

Bob charges 125 pieces for each magical brooms . And 50 as one time charge .

We have to find the formula for the number of gold pieces G as a function of X.

Let X be the number of brooms he constructed

The charge for a broom stick is 125 . So the number of gold pieces he received when X brooms are constructed is 125 X

There will be 50 Gold pieces as one time charge

so the total number of gold pieces will be 125 X + 50

therefore G=125 X +50

3 0

4 years ago