2 years ago

Please help me !!!!!!!!!!

Mathematics

1 answer:

Lera25 [3.4K]2 years ago

8 0

on the left yes is square

no on the left is rectangle

yes on the right is square

all no on the rights can be triangle

Step-by-step explanation:

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If f(x) = 5x + 40, what is f(x) when x = –5?

kakasveta [241]

First note that f(x) means the same thing as y. To solve for f(x) or y you need to plug in -5 for x and solve using the rules of PEMDAS

5(-5) + 40

-25 + 40

When x is -5 then y is 15

Hope this helped!

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2 years ago

Fifty tickets are sold for a raffle.you buy four tickets and your friend buys three tickets.one ticket is randomly chosen as the

Law Incorporation [45]

there would be a 14 percent chance of you or your friend winning

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2 years ago

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Whitey calved an 87-pound calf on March 8. The calf was sold 245 days later

miskamm [114]

515 - 87 = 428
428/245 = 1.746938
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2 years ago

What is the area of triangle DEF?

FrozenT [24]

Answer:

$A=2\sqrt{14}\ units^2$

Step-by-step explanation:

we know that

Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.

$A=\sqrt{s(s-a)(s-b)(s-c)}$

where

a, b and c are the length sides of triangle

s is the semi-perimeter of triangle

we have

$a=5\ units,b=6\ units,c=3\ units$

<em>Find the semi-perimeter s </em>

s= $\frac{5+6+3}{2}=7\ units$

Find the area of triangle

$A=\sqrt{7(7-5)(7-6)(7-3)}$

$A=\sqrt{7(2)(1)(4)}$

$A=\sqrt{56}\ units^2$

simplify

$A=2\sqrt{14}\ units^2$

3 0

2 years ago

P=2a+b+c solve for c

Harman [31]

P = 2a + b + c

Subtract 2a + b on both sides

c = P - (2a+b)
c = P - 2a - b

Hope that helps :)

4 0

2 years ago

Please help me !!!!!!!!!!​

Please help me !!!!!!!!!!