I’m having trouble on number 4

Answer:

cos h° = x/z

Step-by-step explanation:

SOH CAH TOA

Answer:

b

Step-by-step explanation:

you see is equal it means that on might likely to be a boy

Answer:

48

3+5(5+(7-3)-32)

8(12-2)-32

96-16-32

80-32

48

Answer:

Step-by-step explanation:

Let O=number of oranges and A=number of apples.

O+A=20

O=20-A

1.25A+0.95O=22.60, using O found above makes this become

1.25A+0.95(20-A)=22.60

1.25A+19-0.95A=22.60

0.3A+19=22.60

0.3A=3.6

A=12, since O=20-A

O=20-12

O=8

So she bought 8 oranges and 12 apples. The question really only asks for the number of apples bought.

12 apples were bought.

Answer:

1.25x+0.95y=22.60

x is apples y is oranges

Step-by-step explanation:

20 - 12 = 8

1.25(12) + 0.95(8) = 22.60

1.25 · 12 = $15

0.95 · 8 = $7.60

15.00 + 7.60 = $22.60

i hope that makes sense

Answer:

i think you cn use frction

Answer:

a) 400 meters

b) 67 meters

c) 124.790 meters

Step-by-step explanation:

Given data :

g1 = - 0.4 %

g2 = +2 %

change of grade of sag curve ( a ) = 0.6 %

Elevation of PVI ( h2 ) = 124.80 m

a) compute the length of the curve using the relation below

a = [tex]\frac{g2-g1}{L}[/tex] .  hence ; L = ( g2 - g1 ) / a

L = ( 2 -(-0.4 ) / 0.6

  = 2.4 / 0.6 = 4  

 =  400 meters

b) compute the elevation of the lowest point of the curve

slope of the vertical curve = 0

0 = 2ax l + b

 = 2( [tex]\frac{g2-g1}{L}[/tex] ) x  + g1

∴ x = [tex]\frac{-g1L}{(g2-g1)}[/tex]  = ( 0.4 * 4 ) / ( 2 + 0.4 ) = 1.6 / 2.4 =  0.67 stations

therefore x ( elevation of the lowest point ) = 67 meters

C) compute the elevation at Sta. 12 + 125.60

Given that the rate of change of elevation is the same at all points

= [tex]\frac{h2 - h1 }{PVI -P0}[/tex]  = 0.4 -------- ( 1 )

where h2 = 124.80

           h1 = ? ( elevation of p0 ) at 12 + 125.60

           PVI = 12 + 150.06

            p0 =  12 + 125.60

back to the above equation

- h1 = 0.4 ( PVI - P0 ) - h2

     = 0.4 ( 12.150 - 12.1256 ) - 124.80

-h1   = -124.790

hence h1 = 124.790 m

Answer:

you want to have an answer to the question do you, i wish i could help but im only here for my answers

Step-by-step explanation:

sorry

Answer:

B

Step-by-step explanation:

accidentally commented

Answer:

80+40+44-20÷24+32 ♡♡♡

Using set operations,

1.The number of students who study all the three subjects = 10

2.The number of students who study only mathematics and chemistry = 8

Set operations are the operations that are applied on two or more sets to develop a relationship between them. There are four main kinds of set operations which are as follows.

Let mathematics = M, physics = P, chemistry = C.

n(M∪P∪C) = 80

n(M) = 48

n(P) = 40

n(C) = 44

n(M∩P) = 20

n(M∩C) = ?

n(C∩P) = 24

n(M∩P) + n(M∩C) + n(C∩P) - 3n(C∩P∩M) = 32

20 + n(M∩C) + 24 - 3n(C∩P∩M) = 32

n(M∩C) = 3n(C∩P∩M) - 12 - *

We know,

n(M∪P∪C) = n(M) + n(P) + n(C) - n(M∩P) - n(M∩C) - n(C∩P) + n(C∩P∩M)

80 = 48 + 40 + 44 - 20 - n(M∩C) - 24 + n(C∩P∩M)

n(M∩C) = n(C∩P∩M) + 8 - **

Equating * and **,

n(C∩P∩M) + 8 = 3n(C∩P∩M) - 12

2n(C∩P∩M) = 20

n(C∩P∩M) = 10

putting the value of n(C∩P∩M) in *

n(M∩C) = 18

n(M∩C) - n(C∩P∩M) = 8

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Answer:

The answer is "78.25%"

Step-by-step explanation:

Given:

[tex]\mu =20\\\\\sigma=1.4[/tex]

[tex]p(18.48<x<22.63)=p(\frac{18.48-20}{1.7}<\frac{\bar{x}-\mu}{\sigma}<\frac{22.63-20}{1.4})\\\\[/tex]

                                 [tex]=p(\frac{-1.52}{1.7}<Z<\frac{2.63}{1.4})\\\\=p(-0.89<Z<1.87)\\\\[/tex]

                                 [tex]=p(Z<1.87)-p(Z<-0.89)\\\\[/tex]

                                 [tex]=0.969258-0.1867329\\\\=0.7825251\\\\=78.25 \%[/tex]

hii! i just wanted to say hope you're having a fantastic day and hope that things are going well (: stay strong and stay safe!

The triangle congruence criteria that can be used to prove that DEF and D'EF are congruent is the SAS rule.

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

The SAS rule states that "If two sides and the included angle of one triangle are equal to corresponding two sides and included angle of another triangle, then the triangles are congruent"

From ΔDEF and ΔD'EF

DE = D'E

m∠DEF = m∠D'EF

EF = EF

ΔDEF ≈ ΔD'EF

Thus,

The triangle congruence criteria that can be used is the SAS rule.

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Answer:

You can use those properties to confirm parallelogram , rectangle, square, rhombus, trapezoid

To confirm the parallelogram you need to verify the pairs of sides are parallel by confirming same slopes.

To confirm the square you need to verify the sides are perpendicular, also the diagonals are perpendicular. The slopes of perpendicular lines are negative-reciprocal.

To confirm the trapezoid you just need to confirm one pair of sides are parallel, with same slope.

Answer:

Step-by-step explanation:

7 x 5 is 35. 7 x 2 is 14. 14 + 35 is 49

Distributive Property Distribute Denominator to 9a and -3

You Get 9a/3 -3/3

Nvm did this wrong

Answer:

38° because the other two are cm? also you haven't linked a photo so I can't work out angle A

Answer:

2x-4

Step-by-step explanation:

5x-(4+3x)

5x-4-3x

5x-3x-4

2x-4

Answer:

Step-by-step explanation:

The increase was

5400(0.075)=$405

The money in the account was

5400+405=$5805

Answer:

x= -1/3 and -2

I have made it in above picture

When x = 5 and y = 4, the expression [tex]x + (x^2 - xy) - y[/tex]  evaluates to 6.

To evaluate the expression [tex]x + (x^2 - xy) - y[/tex] when x = 5 and y = 4, we substitute the given values into the expression and perform the

calculations:

[tex]x + (x^2 - xy) - y\\x= 5 + (5^2 - 5*4) - 4\\x= 5 + (25 - 20) - 4\\x= 5 + 5 - 4\\x= 10 - 4\\x= 6\\[/tex]

It's crucial to remember that the expression in question is not an equation that represents a graph, nevertheless. It is merely an algebraic expression that, given the values of "x" and "y," evaluates to a single value. We need an equation that connects 'x' and 'y' and specifies the relationship between them if we are to construct a graph.

Therefore, when x = 5 and y = 4, the expression [tex]x + (x^2 - xy) - y[/tex] evaluates to 6.

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Correct Question is:

Evaluate:  [tex]x + (x^2 - xy) - y[/tex] if x = 5 and y = 4.

Answer:

y= -4

Step-by-step explanation:

Answer:

(y = 4 x + 7) This would be x= 4/y-7

(y = -3x - 21) This would be x=y/3 or simplified as -7  

Answer:

Step-by-step explanation:

x²/a² - y²/b² = 1

center (0,0)

vertex (3,0), so a = 3

focus (9,0)

e = 9/a = 3

directrices: x = ±a/e = ±1

The equations of the directrices with a vertex at (3, 0) and a focus of the hyperbola located at (9, 0) is x =  ±1.

The general equation of the hyperbola is in the form of

x²/a² - y²/b² = 1

We have been given center (0,0)

vertex (3,0),

so a = 3

focus (9,0)

So, e = 9/a = 3

The equation of directrices:

x = ±a/e = ±1

Hence, The equations of the directrices with a vertex at (3, 0) and a focus of the hyperbola located at (9, 0) is x =  ±1.

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Answer:

t = 8°

Step-by-step explanation:

We know that the sum of all the angles in a triangle is equal to 180°

Let's set up our equation => 18t + 36 = 180

Subtract 36 from both sides

18t = 144

t = 8

Thus, we have our answer

Answer:

There are 6,227,020,800 different ways to order the 13 people.

ANSWER:

The total amount of money at the end of three years is $79.45.

Option B is correct, f(x) = 2ˣ is an exponential parent function.

A relation is a function if it has only One y-value for each x-value.

The exponential parent function is of the form:

f(x) = aˣ

where a is a positive constant (the base of the exponential function).

Among the given options, the exponential parent function is,

⇒  f(x) = 2ˣ,

Because it has the form of an exponential function, where the base is 2.

f(x) = x is a linear function, not an exponential function.

f(x) = |x| is an absolute value function, not an exponential function.

f(x) = x² is a quadratic function, not an exponential function.

Hence,  f(x) = 2ˣ is an exponential parent function, Option B is correct.

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Answer:

What topic is this and which grade are u in?

Answer:

950 kilograms

Step-by-step explanation:

Fruit: vegetables = 5:7

Fruit = 5

Vegetable = 7

Total ratio = 5 + 7 = 12

If Hassan sells 1.33 tones of vegetables

1 tonne = 1000 kilograms

1.33 tonnes of vegetables = 1330 Kilograms of vegetables

how many kilograms of fruits did he sell?

Let kilograms of fruits sold = x

Fruit: vegetables = 5:7

Fruit: vegetables = x : 1330

5 : 7 = x : 1330

5/7 = x/1330

Cross product

5 * 1330 = 7 * x

6,650 = 7x

x = 6,650/7

x = 950 kilograms

kilograms of fruits sold = 950 kilograms

Answer:

c

Step-by-step explanation:

structure with a square or triangular base and sloping sides that meet in a point at the top

Answer:

−5+11i

Step-by-step explanation:

(3+6i)−(8−5i)

Subtract 8−5i from 3+6i by subtracting the corresponding real and imaginary parts.

3−8+(6−(−5))i

Subtract 8 from 3. Subtract −5 from 6.

−5+11i

Step-by-step explanation:

I hope this helps. The answer is D.

Answer:

Step-by-step explanation: x is our missing length

c^2=a^2+b^2

where c is the hypotenuse

28^2=24^2+x

x^2=28^2-24^2=784-576=208

x=[tex]\sqrt{208}[/tex]=14.4