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3 years ago

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1 The expression - 1/2bh gives the area of a triangle where b is the base of the triangle and h is the height of the triangle. W

hat is the area of a triangle with a base of 7 cm and a height of 4 cm? 28 cm 2 Show Calculator Report a problem Stuck? Watch a video or use a hint. Give Try as 2 of 4

1 answer:

mihalych1998 [28]3 years ago

8 0

Answer:

14

Step-by-step explanation:

1/2bh is saying that the base times the height, halved is the area of the triangle.

so

we will do the base times the height

7x4=28

then we will halve it

28/2=14

the answer is 14

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Bumek [7]

Answer:

The answer is B,C, and D

Step-by-step explanation:

I GOT. THE. QUESTION. RIGHT. ON. EDUNUTITY

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3 years ago

Read 2 more answers

Jada Elena and Lin walked a total of 37 miles last week. jada walked 4 more miles that elena, and Lin walked 2 more miles than j

MA_775_DIABLO [31]

Answer:

Jada walked $13\ miles$

Elena walked $9\ miles$

Lin walked $15\ miles$

Step-by-step explanation:

Let

x----> total miles walked by Jada

y----> total miles walked by Elena

z----> total miles walked by Lin

we know that

$x+y+z=37$ -----> equation A

$x=y+4$ -----> $y=x-4$ ------> equation B

$z=x+2$ ------> equation C

Substitute equation C and equation B in equation A and solve for x

$x+(x-4)+(x+2)=37$

$3x=37+2$

$3x=39$

$x=13\ mi$

Find the value of y

$y=13-4=9\ mi$

Find the value of z

$z=13+2=15\ mi$

therefore

Jada walked $13\ miles$

Elena walked $9\ miles$

Lin walked $15\ miles$

3 0

2 years ago

Anne pays cash for a Tv. The store owner gives her a 10% discount. She pays $702. How much was the price of the Tv before a disc

Whitepunk [10]

Answer:

$780

Step-by-step explanation:

P = Original Price

P (100% - 10%) = $702

P (90%) = $702

(P (.9)) / .9 = $702 / .9

P = $780

Check answer:

$780 (90%) = $702

6 0

2 years ago

Help plz me need to know how to do this

Vanyuwa [196]

The answer is 64. Hope it helps you

8 0

2 years ago

In the expression below, a is an integer. 12^3+ax-20 if 3x+4 is a factor of the expession above, what is the value of a

SVEN [57.7K]

Our function is:

$f(x)=12^3+ax-20$

Now, if $3x+4$ is a factor of $f(x)$ then $x=\frac{-4}{3}$ must satisfy the equation:

So, $f(\frac{-4}{3} )=0$

Putting $x=\frac{-4}{3}$

We get,

$f(\frac{-4}{3} )=12^3+a(\frac{-4}{3} )-20=0$

$12^3+\frac{-4}{3} a-20=0$

$\frac{-4}{3} a=20-12^3=20-1708$

$a=-1708 \times \frac{-3}{4} =1281$

So, the value of 'a' for the given expression is 1281.

4 0

2 years ago