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4 years ago

Evaluate expressions 8+7×5=

Mathematics

2 answers:

ryzh [129]4 years ago

7 0

8 + 7x5 = 8 + 35 = 43;

son4ous [18]4 years ago

6 0

8 + 7 * 5 = 8 + 35 = 43

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Can some one help me with this？

pychu [463]

Answer:

8 in

Step-by-step explanation:

Area = (diagonal 1 x diagonal 2)/2

60 = (diagonal 1 x 15)/2

60 x 2 = diagonal 1 x 15

120 = diagonal 1 x 15

diaognal 1 = 120/15 = 8

3 0

3 years ago

Find the maximum and minimum values of f(x,y) = 8x+y for the polygonal convex set having vertices at (0, 0), (4, 0), (3, 5), (0,

Helen [10]

F(x,y)=8x+y

This means, f is a function where we plug in pairs of numbers.
then, f calculates the first number times 8, to which it then adds the second number we plugged.

let's calculate f for the vertices:

f(0,0)=8*0+0=0+0=0

f(4, 0)=8*4+0=32+0=32

f(3, 5)=8*3+5=24+5=29

f(0, 5)=8*0+5=0+5=5

the maximum value of f is 32
the minimum value of f is 0

4 0

3 years ago

15 POINTS! someone pls answer

photoshop1234 [79]

Answer:

$2(\frac{1}{2} *20*50)+2(\frac{1}{2} *20*10)$

Step-by-step explanation:

The formula for the area of a triangle is $\frac{1}{2} *b*h$

The triangles that can be made is the triangle that has legs 20 and 50 and the triangle that has legs 20 and 10.

Since there are 2 of each triangles, we get:

$2(\frac{1}{2} *20*50)+2(\frac{1}{2} *20*10)$

The answer that fits is the first option.

5 0

3 years ago

What is the answer to <br> (-3b^4)^2/-12b^-9

ladessa [460]

Answer:

(−3b4)2

−12

b−9

−3

Step-by-step explanation:

4 0

3 years ago

I can type 19 words in 38 seconds. How many can I type in 60 seconds?

mel-nik [20]

Hi!

We can solve this by setting up a proportion

$\frac{19}{38} \frac{x}{60}$

Solve for x by cross multiplying.

19 x 60 = 1140
1140/38 = 30

You can type 30 words in 60 seconds

Hope this helps! :)

6 0

4 years ago

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