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Naya [18.7K]
3 years ago
14

-7(5h + 9) = 17 - 8h please help i need this FAST

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
4 0

Answer:

h = -2 \frac{26}{27}

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

lisabon 2012 [21]3 years ago
3 0

Answer:

h = - 80/27

Step-by-step explanation:

-7(5h + 9) = 17 - 8h

Distribute the -7 to the terms inside the parentheses

-35h - 63 = 17 - 8h

Add 63 to both sides

-35h - 63 + 63 = 17 - 8h + 63

Simplify

-35h = 80 - 8h

Add 8h to both sides

-35h + 8h = 80- 8h + 8h

Simplify

-27h = 80

Divide both sides by -27

h = - 80/27

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6 0
2 years ago
The following two triangles are similar. Find x.
Kruka [31]

Answer and Step-by-step explanation:

Since we know that the triangles are similar, we can find the value of x. It appears that the lighter triangle is dilated to be smaller than the darker triangle.

So, We would divide 45 by 9 to find the scale factor.

45 divided by 9 is 5.

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25 divided by 5 is 5.

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4 0
2 years ago
There are 10 true-false questions and 20 multiple choice questions from which to choose a five-question quiz how many ways can t
beks73 [17]

Answer:

In 68229 ways can the quiz be selected such that there is atleast three multiple choice questions

Step-by-step explanation:

Given:

Number of True or false questions= 10

Number of multiple choice questions= 20

To Find:

How many ways can 5 questions can be selected if there must be at least three multiple choice questions =?

Solution:

Combination

A combination is a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter. In combinations, you can select the items in any order.  

The question States there sholud be ATLEAST 3 multiple choice question,

So, we may have

(3 Multiple choice question and 2 true or false question) or

(4 Multiple choice question and 1 true or false question) or

(5 Multiple choice question and 0 true or false question)

Required Number of ways = (20C3 X10C2) +(20C4 X10C1) + (20C5 X10C0)

Required Number of ways =(\frac{20!}{20!(20-3)!}\times\frac{10!}{10!(10-2)!})+(\frac{20!}{20!(20-4)!} \times \frac{10!}{10!(10-1)!}) +(\frac{20!}{20!(20-4)!} \times \frac{10!}{10!(10-0)!})

Required Number of ways = ( 1140 x 42) + (4845 x 10) +(15504 x 1)

Required Number of ways = 47880+48450+15504

Required Number of ways = 68229

3 0
3 years ago
What is the value of cos(A) in the diagram?<br> a.60/61<br> b.61/11<br> c.11/61<br> d.61/60
ehidna [41]

Answer:

a. 60/61

Step-by-step explanation:

With reference angle A

base(b) = 60

hypotenuse (h) = 61

Now

Cos(A) = b / h

= 60/ 61

3 0
3 years ago
Read 2 more answers
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