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3 years ago

Can somebody help me with this pls thank you.

Mathematics

1 answer:

prisoha [69]3 years ago

7 0

Answer:

The place value is the Tenths. and the other answer is 0.7

Step-by-step explanation:

Since 2 is under 4 then 7 stays the same so the number will be 0.7

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What is the equation of the line that passes through the points (−2, 1) and (1, 10)?

Viktor [21]

Answer:

3x - y = -7

Step-by-step explanation:

y = mx + b

m = deltay/deltax

m = (10 - 1)/[( 1 - (-2)]

m = 9/3 = 3

y = 3x + b

From (-2 | 1) we see that when x = -2, y = 1

Placing into the equation, in order to find b (y-intercept)

y = 3x + b

1 = 3(-2) + b

b = 7

y = 3x + 7 or 3x - y = -7

6 0

3 years ago

3 lb 9oz + 5lb 10 oz.

Eduardwww [97]

Answer:

9 lb 3 oz

Step-by-step explanation:

(3 + 5) lb + (9 + 10) oz

8 lb + 19 oz

16 oz = 1 lb

(8 + 1) lb + (19 - 16) ox

9 lb 3 oz

8 0

3 years ago

The two triangles are similar.

prohojiy [21]

I believe it is 60 inches

3 0

2 years ago

The function f(x) = 2x + 510 represents the number of calories burned when exercising, where x is the number of hours spent exer

riadik2000 [5.3K]

Answer: 789 calories burned while combining diet with 2 hours of exercise

Step-by-step explanation:

we have that

$f(x)=2x+510$

$g(x)=200x-125$

we know that

$(f+g)(x)=f(x)+g(x)$

substitute

$(f+g)(x)=2x+510+200x-125$

$(f+g)(x)=202x+385$

Find $(f+g)(2)$

For x=2 hours

substitute

$(f+g)(2)=202(2)+385$

$(f+g)(2)=789\ calories$

therefore

The answer is

789 calories burned while combining diet with 2 hours of exercise

8 0

3 years ago

Solve by completing the square x^2-6x-4=0

Vesna [10]

Answer:

x = 3 ± $\sqrt{13}$

Step-by-step explanation:

x² - 6x - 4 = 0 ( add 4 to both sides )

x² - 6x = 4

To complete the square

add ( half the coefficient of the x- term)² to both sides

x² + 2(- 3)x + 9 = 4 + 9

(x - 3)² = 13 ( take square root of both sides )

x - 3 = ± $\sqrt{13}$ ( add 3 to both sides )

x = 3 ± $\sqrt{13}$

6 0

2 years ago