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Natali5045456 [20]
1 year ago
9

What is the value of the expression shown below? 8 + (7 + 1)2 + 4 07 9 021 24

Mathematics
1 answer:
ExtremeBDS [4]1 year ago
8 0

Answer: 28

Step-by-step explanation:

8+(7+1)2+4\\\\8+(8)2+4\\\\8+16+4\\\\24+4\\\\28

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What is an equation of the line that passes through (-2,3) and is parallel to y=5x + 4.Give your answer in slope intercept form
9966 [12]

Answer:

y= 5x+13

Step-by-step explanation:

<u>Slope- intercept form</u>

y= mx +b, where m is the gradient and b is the y-intercept.

Parallel lines have the same gradient.

y= 5x +4

Gradient of given line= 5

Thus, gradient of line= 5

Subst. m=5 into the equation.

y= 5x +b

To find the value of b, substitute a coordinate

When x= -2, y=3,

3= 5(-2) +b

3= -10 +b

b= 3 +10 <em>(</em><em>+</em><em>1</em><em>0</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

b= 13

Thus, the equation of the line is y= 5x +13.

8 0
4 years ago
At a fair cake-eating contest, Bobby ate three cakes in 20 minutes. At the same speed, how long did it take to win the contest b
Alina [70]

Answer:

140 minutes

Step-by-step explanation:

First divide 21 by 3 to get 7

Then do 20*7 to get 140 :)

4 0
3 years ago
Read 2 more answers
Pls help look at picture​
Brums [2.3K]

Answer: C

Step-by-step explanation:

Looking at the triangle, we see that the angles are the same. This tells us the triangle is an isosceles triangle. That means the two adjacent sides are equal to each other.

4x+23=10x-1       [subtract both sides by 4x]

23=6x-1               [add both sides by 1]

24=6x                  [divide both sides by 6]

x=4

Now, we know that x=4.

5 0
3 years ago
Larry is measuring the volume of a pitcher. He uses a measuring cup that holds 2 cups and fills the measuring cup 7.5 times to f
VikaD [51]

Given,

The amount of liquid hold by measuring cup is 2 cups.

The number of times measuring cup used to fill the pitcher.

Required:

The amount of liquid pitcher hold.

The amount of liquid hold by the pitcher is,

Amount\text{ of liquid = number of times measuring cups used}\times amount\text{ of liquid hold by measuring cup}

Substituting the values.

\begin{gathered} Amount\text{ of liquid =7.5}\times2\text{ cups} \\ =15\text{ cups} \end{gathered}

Hence, the pitcher can hold 15 cups.

4 0
1 year ago
Factor the polynomical completely. m^4+13m^2+36
mr_godi [17]
m^4+13m^2+36= (m^2+4)(m^2+9)
7 0
3 years ago
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