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4 years ago

What is the area of the triangle below

Mathematics

1 answer:

Sveta_85 [38]4 years ago

5 0

Step-by-step explanation:

Area of a triangle = 1/2 ×base ×height

= 1÷2 ×(7×4)

=1÷2 ×28

=14

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If a plane flies 900 mph in calm air and the rate of the wind is r miles per hour then the rate of the plane flying with the win

adoni [48]

The answer is nine.

7 0

3 years ago

08.03 MC)

mihalych1998 [28]

Answer:

(5,38)

Step-by-step explanation:

The correct question is

A system of equations is shown below:

y = 8x − 2

y = 9x − 7

What is the solution to the system of equations?

(−5, 38)

(−5, −38)

(5, 38)

(5, −38)

we have

$y=8x-2$ ----> equation A

$y=9x-7$ ----> equation B

Solve the system by substitution

substitute equation B in equation A

$9x-7=8x-2$

solve for x

$9x-8x=7-2$

$x=5$

Find the value of y

Substitute the value of x in the equation A or in the equation B

$y=8(5)-2=38$

therefore

The solution is the point (5,38)

7 0

3 years ago

The first step in determining the solution to the system of equations, y = -x2 - 4x - 3 and y = 2x + 5, algebraically is to set

aliya0001 [1]

Answer:

See below

Step-by-step explanation:

Next step is to gather 'like' terms

-x2 - 4x -3 = 2x + 5.

x^2 + (4x + 2x) + (3+5) = 0 then simplify

x^2 + 6x + 8 = 0 then factor

(x+4)(x+2) = 0

so either of these terms = 0

x+4 = 0 means x = -4

x+ 2 = 0 means x = - 2

8 0

2 years ago

PLEASE HELP !! ILL GIVE BRAINLIEST !! 100 POINTS

zheka24 [161]

Answer:

124

Step-by-step explanation:

Elm St. and Oak St. are parallel lines.

Cedar St. is a transversal to the other two streets.

When parallel lines are cut by a transversal, corresponding angles are congruent.

The angles with measures 9x + 61 and 3x + 103 are corresponding angles, so they are congruent and have the same measure.

9x + 61 = 3x + 103

Subtract 3x from both sides.

6x + 61 = 103

Subtract 61 from both sides.

6x = 42

Divide both sides by 6.

x = 7

9x + 61 = 9(7) + 61 = 63 + 61 = 124

3x + 103 = 3(7) + 103 = 21 + 103 = 124

3 0

3 years ago

Given the functions a(x) = 4x2 − x + 2 and b(x) = x + 1, identify the oblique asymptote of the function a of x over the function

olga2289 [7]

$a(x)=4x^2-x+2 \\
b(x)=x+1 \\ \\
f(x)=\frac{a(x)}{b(x)}=\frac{4x^2-x+2}{x+1}$

You can find the oblique asymptote by dividing the polynomial in the numerator by the polynomial in the denominator. The asymptote is the result of the division, without the remainder.
Look at the picture.

The oblique asymptote is $y=4x-5$ .

5 0

3 years ago