3 years ago

What is an expression equivalent to 4d-4?

Mathematics

2 answers:

hoa [83]3 years ago

8 0

4(d-1), if you expand it gets 4d-4.

irga5000 [103]3 years ago

8 0

Answer:

4 ( d - 1 )

Step-by-step explanation:

You just have to factorize ;)

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Dora saved $35. She earned $9.50 per hour at her job. How many hours must she work to have a total of $358 in her savings?

IRISSAK [1]

Answer:

34 Hours

Step-by-step explanation:

358-35= 323

323÷9.50= 34

7 0

3 years ago

HELP ASAP PLEASE

Liula [17]

distance : 15 units

coordinates : (7,0) and (-8, 45)

slope:

$\sf \rightarrow \dfrac{y_2-y_1}{x_2-x_1}$

$\sf \rightarrow \dfrac{45-0}{-8-7}$

$\sf \rightarrow -3$

equation:

$\hookrightarrow \sf y - 0 = -3(x-7)$

$\hookrightarrow \sf y = -3x+21$

the y-intercept of this function:

$\hookrightarrow \sf y = -3(0)+21$

$\hookrightarrow \sf y =21$

distance between both y-intercept :

21 - 6

3 0

3 years ago

What's A(-2,-4),B(2,4)

dexar [7]

AB = $\sqrt{( 2 + 2 ) ^{2} + (4 + 4)^{2} } = \sqrt{16 + 256} = \sqrt{272} = 16.49$

5 0

3 years ago

The cunninghams are moving across the country. mr. cunningham leaves 33 hours before mrs. cunningham. if he averages 40mph40⁢mph

inna [77]

65t = 40(t+2.5)65t=40t+10025t=200t=4 Hours

7 0

3 years ago

The sum of two consecutive integers is 59. Write an equation that models this situation and find the values of two integers.

Elza [17]

Set on of the numbers as x. The consecutive integer to it would be x+1 (or x-1, which ever one you like. I'm going to use x+1 though).

The sum would be

x + (x+1)

Set it equal to 59.

x+x+1=59
2x+1=59
2x=58
x=49

One integer is 49. The other integer, x+1, is 50.

Hope this helps!

4 0

3 years ago