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3 years ago

Help please! I’m stuck on this one and idk what to do first!

Mathematics

2 answers:

Elena L [17]3 years ago

6 0

By pythagorean theorem
H^2=P^2+B^2
And,B^2=H^2-P^2
B^2=26^2-24^2
B^2=676-576
B^2=100
Therefore,B=root100
B=10 miles

DaniilM [7]3 years ago

3 0

Answer:

10 miles

Step-by-step explanation:

This is a right triangle. This is know because of the little square in the corner that indicates a right angle. Therefore, the Pythagorean Theorem can be used.

a^2+b^2=c^2

where a and b are the legs and c is the hypotenuse.

In this triangle, 24 and x are the legs, because they form the right angle. 26 is the hypotenuse because it is opposite the right angle.

x^2+24^2=26^2

Evaluate the exponents

x^2+576=676

Now, solve for x. First, move 576 to the other side of the equation by subtracting 576 from both sides.

x^2+576-576=676-576

x^2=100

Now, x is being squared. Take the square root of both sides.

√x^2=√100

x=√100

x=10

Use appropriate units

x=10 miles

The missing side length is 10 miles.

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There are 5 animals in the field. Some are horses and some are ducks. There are 14 legs in all. How many of each animal are in t

wariber [46]

Answer:

2 horses and 3 ducks

Step-by-step explanation:

2 horses*4 legs=8 legs

3 ducks*2 legs=6 legs

Add both

8+6=14 legs

4 0

3 years ago

Read 2 more answers

16.4.57 Question Help A box contains eighteen $1 bills, ten $5 bills, eight $10 bills, three $20 bills, and one $100 bill You bl

Rudiy27

Answer:

$ 7.7

Step-by-step explanation:

Given,

There are 18 $1 bills, ten $5 bills, eight $10 bills, three $20 bills, and one $100 bill,

Total number of bills = 18 + 10 + 8 + 3 + 1 = 40,

$\because \text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}$

Thus,

The probability of $ 1 = $\frac{18}{40}$

The probability of $ 5 = $\frac{10}{40}$

The probability of $ 10 = $\frac{8}{40}$

The probability of $ 20 = $\frac{3}{40}$

The probability of $ 100 = $\frac{1}{40}$

If a bill is selected randomly,

The expected value of the bill

$=\frac{18}{40}\times 1+\frac{10}{40}\times 5+\frac{8}{40}\times 10+\frac{3}{40}\times 20+\frac{1}{40}\times 100$

$=\frac{18+50+80+60+100}{40}$

$=\frac{308}{40}$

= $ 7.7

5 0

3 years ago

If a = −4, and b = 3, what is |a − b|?

guajiro [1.7K]

Answer:

Step-by-step explanation:

a = -4,b = 3

|a-b|

|-4-3|

|-7|

hope it's helpful ❤❤❤❤❤

THANK YOU.

5 0

3 years ago

Which equation has a graph that lies entirely above the x-axis?

rusak2 [61]

Answer:

$y = (x - 7)^{2} + 7$ .

Step-by-step explanation:

Let $a$ , $h$ , and $k$ be constants, and let $a \ne 0$ . The equation $y = a\, (x - h)^{2} + k$ represents a parabola in a plane with vertex at $(h,\, k)$ .

For example, for $y = -(x + 7)^{2} + 7 = -(x - (-7))^{2} + 7$ , $a = (-1)$ , $h = (-7)$ , and $k = 7$ .

A parabola is entirely above the $x$ -axis only if this parabola opens upwards, with the vertex $(h,\, k)$ above the $x\!$ -axis.

The parabola opens upwards if and only if the leading coefficient is positive: $a > 0$ .

For the vertex $(h,\, k)$ to be above the $x$ -axis, the $y$ -coordinate of that point, $k$ , must be strictly positive. Thus, $k > 0$ .

Among the choices:

$y = -(x + 7)^{2} + 7$ does not meet the requirements. Since $a = (-1)$ , this parabola would open downwards, not upwards as required.
$y = (x - 7)^{2} - 7$ does not meet the requirements. Since $k = (-7)$ and is negative, the vertex of this parabola would be below the $x$ -axis.
$y = (x - 7)^{2} + 7$ meet both requirements: $a = 1$ and $k = 7$ .
$y = (x - 7)^{2}$ (for which $k = 0$ ) would touch the $x$ -axis at its vertex.

8 0

3 years ago

5. Use the discriminant to determine how many real number solutions exist for the quadratic equation –4j2 + 3j – 28 = 0

Arlecino [84]

–4j²<span> + 3j – 28 = 0
D = b</span>² - 4ac = 3² - 4*(-4)*(-28) = 9 - 448 = -439
D<0 ⇒ j ∈ ∅
<span>No solutions</span>

3 0

3 years ago