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3 years ago

I need help ASAP!! I am offering brainiest to whoever can answer first AND CORRECTLY!!!!!!1

Mathematics

1 answer:

kaheart [24]3 years ago

5 0

Answer:

Height: 300

Width: 1000

Step-by-step explanation:

All you have to do is look at where the lines start and end on the graph for instance the top is at 0 and the very bottom line is at 300 so that means its 300 feet tall.

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I really need help on this one, guys

Gennadij [26K]

Answer:

6.2 meters

Step-by-step explanation:

Use pythagorean theorem to find b:

b = √(2.8² - 2.7²) = √0.55 = 0.7 (nearest tenth)

Perimeter of triangle = sum of all its sides = 2.8 + 2.7 + 0.7

Perimeter = 6.2 meters

6 0

3 years ago

I suck a writing proofs in geometry.... please someone explain it to me, i cant seem to reconize what's going on. I need major h

Rashid [163]

Congruence Properties

In earlier mathematics courses, you have learned concepts like the commutative or associative properties. These concepts help you solve many types of mathematics problems. There are a few properties relating to congruence that will help you solve geometry problems as well. These are especially useful in two-column proofs, which you will learn later in this lesson!

The Reflexive Property of Congruence

The reflexive property of congruence states that any shape is congruent to itself. This may seem obvious, but in a geometric proof, you need to identify every possibility to help you solve a problem. If two triangles share a line segment, you can prove congruence by the reflexive property.

3 0

3 years ago

A surveyor is measuring the distance across a small lake. He has set up his transit on one side of the lake 130 feet from a pili

Dimas [21]

Answer:

x = 225.16 feet

Step-by-step explanation:

Given that,

The angle between the piling and the pier is 60°.

A surveyor has set up his transit on one side of the lake 130 feet from a piling that is directly across from a pier on the other side of the lake.

We need to find the distance between the piling and the pier. Let the distance be d. Using the trigonometry to find it as follows :

$\tan(60)=\dfrac{x}{130}\\\\x=\tan(60)\times 130\\\\x=225.16\ feet$

So, the required distance is 225.16 feet.

4 0

3 years ago

SOMEONE PLSSS HELPPP

podryga [215]

Answer:

d Dilation by a scale factor of 2 followed by reflection about the y-axis

Step-by-step explanation:

In each case, the transformation is ...

(x, y) ⇒ (-2x, 2y)

So, a dilation by a factor of 2 is involved. That is what multiplies the coordinates by 2. Reflection in the y-axis is what negates the x-coordinate.

The transformations are ...

Dilation by a scale factor of 2 followed by reflection about the y-axis

8 0

4 years ago

Una compañía sabe que si produce "x" unidades mensuales su utilidad "u" se podría calcular con la expresión:

belka [17]

Answer:

Δf(u) /Δx = 92,8 ( razón de cambio promedio)

Step-by-step explanation:

La expresión de la utilidad de la empresa u(x) en función de la cantidad de unidades producidas "x" es:

u(x) = 0,04*x² + 44*x -4000

Entonces la razón de cambio promedio en un intervalo (a ; b) en este caso ( 620 ; 600 ) viene dada por la expresión:

Δf(x)/ Δx = [ f(b) - f(a) ]/( b - a )

en donde f(b) y f(a) se obtienen por sustitución de los valores a y b es decir 600 y 620 respectivamente en la función f(x) = u(x) entonces

Δf(u) /Δx = [ u(b) - u(a) ]/( b -a ) (1)

u(b) = 0,04*(620)² + 44*(620) - 4000

u(b) = 15376 + 27280 -4000

u(b) = 2656 unidades

u(a) = 0,04* (600)² + 44* 600 - 4000

u(a) = 14400 + 26400 - 4000

u(a) = 800

Sustituyendo esos valores en la ecuación 1

Δf(u) /Δx = 2656 - 800 / 620 - 600

Δf(u) /Δx = 92,8

5 0

4 years ago