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Setler79 [48]
3 years ago
15

2. (01.02 MC) Find the value of the expression 4a4 – 2b2 + 40 when a = 2 and b = 7. (5 points)

Mathematics
1 answer:
Sergio039 [100]3 years ago
6 0

Answer:

4x2x4 - 2×7×2 + 40

64 - 28 + 40=76

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3x+12=2x+40 solve for x
Fiesta28 [93]

Answer:

x = 28

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Identify an equation in point-slope form for the line parallel to y = 1*-7 that
kakasveta [241]

<u><em>Answer:</em></u>

y + 2 = 1 (x+3) ............> y + 2 = x + 3

<u><em>Explanation:</em></u>

<u>The general form of the equation of a line in point-slope form is:</u>

y - y₁ = m (x - x₁)

<u>where:</u>

m is the slope of the line

(x₁ , y₁) is a point that belongs to the line

<u>The general form of the equation of a line in slope-intercept form is:</u>

y = mx + c

<u>where:</u>

m is the slope

c is the y-intercept

<u>1- Getting the point:</u>

We are already given the point (-3 , -2) so we'll directly use it

<u>2- Getting the slope</u>

<u>We are given that our line is parallel to the line:</u>

y = 1x - 7

We know that parallel lines have equal slopes

<u>This means that:</u>

slope of the line we want = 1

<u>3- Getting the equation:</u>

Substitute with the point and slope in the above form to get the equation

<u>This is done as follows:</u>

y - y₁ = m (x - x₁)

y - (-2) = 1 (x - (-3))

y + 2 = 1 (x + 3)

y + 2 = x + 3

Hope this helps :)

4 0
3 years ago
Simplify the following<br> a.) 2^7 x 2
In-s [12.5K]

Answer:

256

Step-by-step explanation:

i think it is 256.i hope it was that

5 0
3 years ago
Read 2 more answers
Four brothers each bought two hot dogs and a bag of chips at the football concession stand. If the bag of chips was $1.25, and t
GrogVix [38]

Answer:

The price of one hot dog is $1.65

Step-by-step explanation:

8h+4c= x

c= 1.25

x= 18.20

8h + 4(1.25)= 18.20

8h + 5 = 18.20

( subtract 5 from both sides of the equation)

8h = 13.20

( divide both sides by 8 to isolate the variable)

h = 1.65

so each hot dog is 1.65

3 0
3 years ago
Read 2 more answers
Help me find the volume please
8_murik_8 [283]

Answer:

Volume is 150 cu.m

Step-by-step explanation:

volume of cuboid = length × breadth × height

= 10 × 5× 3

= 150 cu.m

6 0
2 years ago
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