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snow_lady [41]
3 years ago
12

2 in a math contest, the contestants were given the following piecewise graph. For

Mathematics
1 answer:
marishachu [46]3 years ago
3 0

Answer:

What do think the answer is cause I don't know

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Tamara rewrote the expression 0.2(4+1.4y - 2.1). Her steps are shown.
grin007 [14]

Answer:

Her first mistake was in Step 2. She added 0.2 to each term instead of multiplying by 0.2.

Step-by-step explanation:

CORRECT WAY:

0.2(4+1.4y - 2.1)

0.8 + 0.28y - 0.42

0.8 - 0.42 + 0.28y

0.38 + 0.28y

WHAT TAMARA DID:

0.2(4+1.4y - 2.1)

How she got 4.2: 0.2 + 4 = 4.2

How she got 1.6y: 0.2 + 1.4y = 1.6y

How she got -1.9: 0.2 + -2.1 = -1.9

WHAT SHE DID HERE IS WRONG. REMEMBER WHEN IT IS __( ______) IT MEANS THAT YOU NEED TO MULTIPLE NUMBER OUTSIDE THE PARATNESS TO EVERY NUMBER THAT IS INSIDE THE PARATNESS.

4 0
2 years ago
Use the graph f(x)=x^3 to graph h(x)=1/2(x-3)^2-2
SVEN [57.7K]
Can u take a picture of it
5 0
3 years ago
3. Solve the inequality –2(z + 5) + 20 > 6.
12345 [234]

\boxed{-2\left(z+5\right)+20>6\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:z

<em><u>Solution:</u></em>

<em><u>Given inequality is:</u></em>

-2(z+5)+20>6

We have to solve the given inequality

-2\left(z+5\right)+20>6\\\\\mathrm{Subtract\:}20\mathrm{\:from\:both\:sides}\\\\-2\left(z+5\right)+20-20>6-20\\\\\mathrm{Simplify}\\\\-2\left(z+5\right)>-14

Multiply\ both\ sides\ by\ -1\ \left(reverse\:the\:inequality\right)

Whenever we multiply or divide an inequality by a negative number, we must flip the inequality sign

\left(-2\left(z+5\right)\right)\left(-1\right)

<em><u>Thus the solution to inequality is:</u></em>

-2\left(z+5\right)+20>6\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:z

4 0
3 years ago
Please someone help, I know its kind of a lot, but I need these answers fast pls.
Dmitry_Shevchenko [17]

Answer:

Im not sure

Step-by-step explanation:

GOOD LOOK ON YOUR TEST HE DISCONN-ECTED

5 0
3 years ago
Liza buys 4 yards of fabric for $8.48. How much was the fabric per yard?
levacccp [35]

Answer:

the fabric per yard was 2.12

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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