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2 years ago

HELPPPPPPP PLEASEEEEE !!!!

Mathematics

1 answer:

antiseptic1488 [7]2 years ago

3 0

Answer:

Step-by-step explanation:

We know that all lengths in a rhombus are equal so we make the 2 equations equal to each other, then solve for x:

$4x-6=5x-10$

$5x-4x=10-6$

$x=4$

x=4

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Find the equations of the lines for the following. Your answer should be in the form y=mx+b.

spin [16.1K]

Answer:

1 ) y = 2x - 1

slope = 2

y intercept is (0,-1)

2) y = -1/2x + 5

slope = -0.5

y intercept = (0,5)

Step-by-step explanation:

4 0

3 years ago

Write the quadratic equation whose roots are 1 and -2, and whose leading coefficient is 3.

kirill115 [55]

Answer:

See below

Step-by-step explanation:

The quadratic equation in factored form:

a(x - α)(x - β), where a- leading coefficient, α and β - roots

We have:

a = 3, α = 1, β = -2

Substitute them to get:

3(x - 1)(x + 2)

Converting this into standard form:

3(x - 1)(x + 2) =
3(x² + x - 2) =
3x² + 3x - 6

3 0

2 years ago

Two semicircles are attached to the sides of a rectangle as shown.

melomori [17]

Answer:

$157\ in^{2}$

Step-by-step explanation:

we know that

The area of the figure is equal to the area of rectangle plus the area of two semicircles

The area of rectangle is equal to

$A=14*5=70\ in^{2}$

The area of the small semicircle is equal to

$A=\pi r^{2} /2$

$r=5/2=2.5\ in$ -----> radius is half the diameter

substitute

$A=(3.14)(2.5^{2})/2=9.8125 in^{2}$

The area of the larger semicircle is equal to

$A=\pi r^{2} /2$

$r=14/2=7\ in$ -----> radius is half the diameter

substitute

$A=(3.14)(7^{2})/2=76.93\ in^{2}$

The area of the figure is equal to

$70+9.8125+76.93=156.7425=157\ in^{2}$

8 0

3 years ago

Read 2 more answers

Are the ratios 3:6 and 6:3 equivalent?

Hunter-Best [27]

Answer: No

Step-by-step explanation: the ratio 3:6 reduces to one half

the ratio 6:3 reduces to 2 because division cannot be interchangeable

4 0

3 years ago

Find the common difference of the arithmetic sequence –9,–13, -17,...

Semenov [28]

Answer:

-4

Step-by-step explanation:

t2 - t1

-13 - (-9)

-13 + 9

= -4

6 0

2 years ago