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3 years ago

I don’t know if the first one is right but could someone guess true or false?

Mathematics

1 answer:

victus00 [196]3 years ago

3 0

Answer:

B) false D) true E) true

Step-by-step explanation:

Plug in numbers to disprove the first one.

Area formula for triangles says D is true

It's the Pythagorean's Theorem for Heaven's sakes.

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3 years ago

Recall the equation that modeled the volume of the raised flower bed, y, in terms of the width of the box, y = x3 + 11x2 − 312x.

lakkis [162]

Answer:

48 cubic feet of mulch

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2 years ago

A speed limit of 100 kilometers per hour (kph) is approximately equal to 62 miles per hour (mph). Write an equation relating kil

Kitty [74]

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3 years ago

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Third degree, with zeros of -3,-2, and 1, and passes through the point (2,11)<br><br> P(x)=

Soloha48 [4]

Answer:

$P(x)=0.55(x+3)(x+2)(x-1)$

Step-by-step explanation:

If a polynomial function is third degree function and has zeros at -3,-2, and 1, then its equation is

$P(x)=a(x-(-3))(x-(-2))(x-1)\\ \\P(x)=a(x+3)(x+2)(x-1)$

It passes through the point (2,11), so the coordinates of the point satisfy the equation of the function:

$11=a(2+3)(2+2)(2-1)\\ \\11=a\cdot 5\cdot 4\cdot 1\\ \\20a=11\\ \\a=\dfrac{11}{20}=0.55\\ \\P(x)=0.55(x+3)(x+2)(x-1)$

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3 years ago

A rectangle is 12 cm long and 9 cm wide. Its diagonal is labeled 2x - 11. What is the value of x?

shusha [124]

Answer: The value of x is 13 cm.

Explanation:

It is given that the length and width of the rectangle are 12 cm and 9 cm.

Use pythagoras to find the value of the diagonal.

$Hypotenuse=\sqrt{(base)^2+(perpendicular)^2}$

$D=\sqrt{(12)^2+(9)^2}$

$D=\sqrt{144+81}$

$D=\sqrt{225}$

$D=15$

It is given that the diagonal is labeled as 2x-11.

$2x-11=15$

$2x=15+11$

$2x=26$

Divide both side by 2.

$x=13$

Therefore, x = 13cm.

3 0

3 years ago

Read 2 more answers