Please help really fast

Answers

Answer 1

Answer: If you cut an isosceles triangle in half, you get a right angled triangle.
You can work out 'd' or the hypotenuse using Pythagoras's theorem:
a^2 + b^2 = c^2

Because we are looking at half of the triangle, we have to half the base, 14m. So you get 7m. But the height of the triangle, 5m, stays the same.

So if you out the figures into the formula you'd get:
7^2 + 5^2 = d^2

To get 'd' you have to square root the first half of the equation. So you get:
√7^2 + 5^2 = d

The above is the answer :)

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Sin77*sin88+cos77*cos88**HELP ASAP**

Note: Numbers next to functions are in degrees.

Answers

Answer:

$\sf cos(77) * cos(88) + sin(77) * sin(88) =\boxed{\sf cos(11) \approx 0.982}$

Step-by-step explanation:

To simplify the expression $\sf sin(77) * sin(88) + cos(77) * cos(88)$ , we'll use trigonometric identities.

The identity we'll use is the product-to-sum formula for cosine:

$\boxed{\sf cos(A - B) = cos(A) * cos(B) + sin(A) * sin(B)}$

Now, let A = 77 and B = 88

$\sf cos(77 - 88) = cos(77) * cos(88) + sin(77) * sin(88)$

Notice that 77 - 88 = -11 degrees.

$\sf cos(-11) = cos(77) * cos(88) + sin(77) * sin(88)$

Now, we know that cos(-x) = cos(x), so:

$\sf cos(11) = cos(77) * cos(88) + sin(77) * sin(88)$

Finally, since the cosine function is even (cos(x) = cos(-x)), we have:

$\sf cos(11) = cos(77) * cos(88) + sin(77) * sin(88) = cos(-11)$

Therefore:

$\sf cos(77) * cos(88) + sin(77) * sin(88) =\boxed{\sf cos(11) \approx 0.982}$

See the attachmentfor trigonometric identities formula:

According to the Ruler Postulate, what does the set of points on any line correspond to?A: real numbers
B: natural numbers
C: rational numbers
D: irrational numbers

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

2. Hessa was playing a computer game. She scored 43 points in Round 1 and 26 points in Round 2. Which sum could she use to add the points together? a. 40 + 20 + 3 + 6 b. 4 + 3 + 2 + 6 c. 40 + 30 + 20 + 60 d. 30 + 4 + 60 + 2

Answers

Answer:

a. 40 + 20 + 3 + 6

Step-by-step explanation:

Points scored by Hessa is as shown below;

Round 1 = 43 points

Round 2 = 26 points

Total points for both rounds = 43 + 26 = 69 points

To determine the sum she could use to add the points together, we must select the sum that will give us the same total of points for both rounds i.e 69 points.

The Round 1 score (43 pt)can also be expressed as (40+3) points

The Round 2 score (26 pt)can also be expressed as (20+6) points

The sum she could use to add the points together will be (40+3)+(20+6)

which is also equal to 40 + 20 + 3 + 6 = 69points

Hence, option a is correct

Find the measures of the labeled angles. HELP ASAP PLEASE

Answers

The measures of the labelled angles that are vertically opposite to each other are:

x + 87 = 116 degrees

4x = 116 degrees

(x + 87) and 4x are vertical angles directly opposite each other.

According to the vertical angles theorem, (x + 87) and 4x are congruent.

Therefore, we will have:

(x + 87) = 4x

Solve to find the value of x

x + 87 = 4x

Subtract x from both sides

x + 87 - x = 4x - x

87 = 3x

Divide both sides by 3

29 = x

x = 29

Find the labelled angles by plugging in the value of x

x + 87 = 29 + 87 = 116 degrees

4x = 4(29) = 116 degrees

Therefore, the measures of the labelled angles that are vertically opposite to each other are:

x + 87 = 116 degrees

4x = 116 degrees

Learn more here:

brainly.com/question/16862610

(x + 87)° = 116°

We can see that the angle of (x + 87)° is directly across from the angle of 4x°. This shows that they are equal. We can take the two terms and make an equation.

—> (x + 87) = 4x

After solving for the value of x, we get a value of 29.

Now that we know x, let's substitute it into (x + 87).

(x + 87) becomes (29 + 87), which is equal to 116°.

To check,we can substitute 29 into the other angle of 4x as well, since the two angles are equal.

4x becomes 4(29), which is also equal to 116°.

Anna wrote this equation to represent the total number of fish she owns. 34 = 11 t

Answers

Answer:

Step-by-step explanation:

Eleven (11) plus t equals thirty-four (34)

The united states government produced about 10.25 billion pennies one year. how is 10.25 written in scientific notation?

that same year, about 3.0×10^7 half-dollars were produced.how many more pennies were produced that year than half-dollar? explain how u know

Answers

1) 10.25 x 10^9 in scientific notation is 1.025 x 10^10

2) Now you have to subtract 10.25x10^9 - 3.0x10^7

To make that you have to put both numbers with the same power of ten.

1025x10^7 - 3.0x10^7 = 1022x10^7 more pennies than half-dollars.

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