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3 years ago

Help me pleaseeeeeeeee

Mathematics

1 answer:

creativ13 [48]3 years ago

8 0

24id the answer I got this by adding all of this up

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Solve the right triangle ABC with right angle C if B = 30° and c = 10.

mart [117]

Step-by-step explanation:

Answer:

Last choice is correct.

Step-by-step explanation:

Given that ∠C=90°, ∠B=30°, c=10

We know that sum of all angles in a triangle is 180 degree.

∠A+∠B+∠C=180°

∠A+∠30°+∠90°=180°

∠A+∠120°=180°

∠A=60°

Now we can use sin or cos whichever applicable to find missing sides

2b=10

b=5

Similarly

a=8.6602

Hence last choice is correct.

6 0

3 years ago

What is 0.7b^3•0.4b^9

Dennis_Churaev [7]

It's an expression that can be simplified to read

( 0.7 x 0.4 ) ( b³ x b⁹ )

= ( 0.28 ) ( b¹² ) = 0.28 b¹² .

4 0

4 years ago

A large container holds 5 gallons of water. It begins leaking at a constant rate. After 10 minutes, the container has 3 gallons

borishaifa [10]

1/5 of a gallon per minute

6 0

4 years ago

it costs $5.50 per hour to rent a pair of ice skates, for up to 2 hours. After 2 hours, the rental cost per hour decreases to $2

laila [671]

$5.50 x 2 is $11.00
$2.50 x 2 is $5.00
$11 plus $5 is $16
it costs $16 to rent a pair of skates for 4 hours

6 0

4 years ago

James has worked full time as an entry-level web designer since earning his certification. He

Norma-Jean [14]

A budget is a periodical compilation of the estimated revenue earned and expenses incurred within a given time period

Monthly income calculation

James monthly income is calculated as follows;

Monthly income = $\dfrac{\$47,000}{12} \approx \$ 3,916.\overline 6$

The required <u>James' monthly personal budget </u>is presented as follows;

Based on the above monthly income, the monthly personal budget is found by entering the given values in a budget template as follows;

$\begin{array}{lllc}& Incone &\$3,916.6 \\&Rent&\$950\\&Insurance \ (renter's)&\$25\\&Insurance \ (health)&\$185\\&Retirement \ (401 (k))&\$157\\&Car \ insurance &\$120 \\Fixed \ expenses&Utilities&\$100 &\\&Cell \ phone &\$85 &\\&Cable \ TV& \$70 &\\&Credit \ card& \$150 \\&Car \ payment&\$554\\&\underline{ \mathbf{Total \ fixed \ expenses}}& \$2,396 \\&&\\&Clothing& \$80 & \\Variable \ expenses&Groceries& \$300 \\&Entertainment&\$196 \\&\underline{ \mathbf{ Total \ variable \ expenses}}&\$576 \end{array}$

Savings ${}$ $944. $\overline 6$

Learn more about how to make a budget here:

brainly.com/question/14080312

5 0

3 years ago