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3 years ago

Can you help me i really need it

Mathematics

2 answers:

pantera1 [17]3 years ago

8 0

Heya there!

Let us learn that we want that variable to be by itself.

To get the variable (b) by itself we need to do some work.

Solving for B:

As we need to get B by itself, we beed to remove the "-19".

To do that, we have to +19 since the -19 is a negative.

This allows us to have B by itself.

b - 19 = -11

+19 +19 to both sides ; whatever action we do to one side we do to the other.

Now, the equation should look like b = 8

We got b = 8 from the adding +19 to both sides. -11 + 19 = 8

Therefore, we are left with b = 8.

Learn how others are solving for x:

brainly.com/question/12432608

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Temka [501]3 years ago

5 0

Answer:

Step-by-step explanation:

1) Add -11 plus 19 which should give you 8.

2) Check your answer by subtracting 8 - 19 = -11

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Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a fl

LenKa [72]

We only need to find the heights of the 2 points on the flagpole and then subtract them. We have that AC and DC are related by the following trigonometric number: tan60=AC/DC. This is because ADC is a right triangle and AC is the opposite leg of the angle we know, while DC is the adjacent leg.
$tan60= \sqrt{3} =AC/5 \sqrt{3} \\ AC=5 \sqrt{3} * \sqrt{3} =5*3=15$ .

Thus, we have calculated AC. The same remarks apply to the triangle BCD; However, now we get that tan30=BC/DC.
$tan60= 1/\sqrt{3} =BC/5 \sqrt{3} \\ BC=5 \sqrt{3} / \sqrt{3} =5$ .

Hence, the height of point B is 5 feet, while the height of point A is 15 feet. Their distance is 10 feet.

5 0

3 years ago

I need to know the answer to this problem please

Westkost [7]

FOIL when multiplying two binomials.

First:
√ 3*√ 3= 3

Outer:
√ 3 *2 = 2√3

Inner:
-4*√3= -4√3

Last:
-4*2=-8

Put it together
3+2√3-4√3-8

Simplify
(-2√3)-5

Final answer: (-2√3)-5

7 0

3 years ago

What angle is included by AC and BC?

ella [17]

Answer:

Step-by-step explanation:

Both segments AC and BC intersect at point C. Hence, the angle included by them will be angle C.

8 0

2 years ago

What is 12 - 33/4. Answer please

lara [203]

12 - 33/4

Answer = 3.75

3 0

3 years ago

Read 2 more answers

What is the answer to this?

oee [108]

Answer:

Quotient: 121

Remainder: 23

Step-by-step explanation:

So first see how many times 29 goes into 3532.

121

Next do 29 * 121 = 3509

Subtract that from 3532 = 23

4 0

3 years ago

Read 2 more answers