3 years ago

Evaluate the expression when x = 1/2 and y = -2/5. Show all work.1. -x + y2. x +2y

Mathematics

1 answer:

NISA [10]3 years ago

4 0

I am old, so I like to use paper & pencil

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What is the product of 7.951x 1.314

gladu [14]

Answer:

10.447614

Step-by-step explanation:

The product of 7.951x 1.314 is 10.447614.

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3 years ago

WHAT IS THE SURFACE AREA OF THE FIFURE?

max2010maxim [7]

I think the correct answer is 560ft^2.

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3 years ago

Can someone please help me do this

Viefleur [7K]

Answer:

Step-by-step explanation:

CD is Pole

∠CAD = 4° {Alternate interior angles}

ΔCAD,

$\dfrac{opposite \ side}{adjacent \ side}= tan 4\\\\ \dfrac{90}{AD}=tan \ 4\\\\ \dfrac{90}{AD} = 0.069\\\\90 = 0.069*AD\\\\ \dfrac{90}{0.069}=AD\\\\AD = 1304 \ ft$

In ΔCDB,

∠B = 5° {Alternate interior angles}

$Tan \ 5 = \dfrac{90}{BD}\\\\0.09* BD = 90\\\\BD = \dfrac{90}{0.09}\\\\BD = 1000 \ ft$

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2 years ago

A 5x5 table is filled with numbers (one number per cell). It is known that the product of 5 numbers in each column is negative.

Advocard [28]

Answer:

Yes

Step-by-step explanation:

A negative multiplied by another negative will turn into a positive. A positive multipled by a negative will stay as a negative.

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2 years ago

What is the volume of a rectangular prism that is 8 m long, 7 m wide, and 5 m tall?

OleMash [197]

Answer: 280
to find volume it's Length x Width x Height
8x7x5 = 280

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2 years ago