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Crank
2 years ago
14

Evaluate the expression when x=-2 and y=2. -9x+y X 5 ?

Mathematics
1 answer:
marissa [1.9K]2 years ago
8 0

Answer:

100

Step-by-step explanation:

(-9x+y) *5

Let x = -2 and y = 2

(-9 *-2+2) *5

Parentheses first

(18+2) * 5

(20)*5

100

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Select the correct answer.
garri49 [273]

Answer:

Step-by-step explanation:

C. 28

5 raised to 2nd power is 25 so 25+3=28

7 0
2 years ago
John made this model to show \frac{4}{7}\times\frac{13}{9} 7 4 ​ × 9 13 ​ Using John's model, what is \frac{4}{7}\times\frac{13}
harkovskaia [24]

Answer:

\frac{4}{7}\times\frac{13}{9} = \frac{52}{63}

Step-by-step explanation:

Given

See attachment for model

Required

Determine \frac{4}{7}\times\frac{13}{9} from the model

The model is represented by:

\frac{4}{7}\times\frac{13}{9} = \frac{4}{7}\times\frac{9}{9} + \frac{4}{7}\times\frac{4}{9}

To get: \frac{4}{7}\times\frac{9}{9}, we consider the first partition

The number of shaded box is 63 ---- this represents the denominator

The total boxes shaded at the bottom is 36 ---- this represents the numerator

So, we have:

\frac{4}{7}\times\frac{9}{9} = \frac{36}{63}

To get: \frac{4}{7}\times\frac{9}{9}, we consider the first partition

The number of shaded box is 63 ---- this represents the denominator

The total boxes shaded at the bottom is 16 (do not count the gray boxes) ---- this represents the numerator

So, we have:

\frac{4}{7}\times\frac{4}{9} =\frac{16}{63}

The equation becomes:

\frac{4}{7}\times\frac{13}{9} = \frac{4}{7}\times\frac{9}{9} + \frac{4}{7}\times\frac{4}{9}

\frac{4}{7}\times\frac{13}{9} = \frac{36}{63} + \frac{16}{63}

\frac{4}{7}\times\frac{13}{9} = \frac{36+16}{63}

\frac{4}{7}\times\frac{13}{9} = \frac{52}{63}

5 0
2 years ago
A cyclist rode 4 miles in 20 minutes how fast was she going in miles per minutes
mezya [45]

Answer:

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Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is the value of x?
Vilka [71]

Answer:

x = 58

Step-by-step explanation:

The angle formed by two secants = 1/2(difference of intercepted arcs)

51 = 1/2 (160 - x)

Multiply each side by 2

51*2 = 2*1/2 (160-x)

102 = 160-x

Subtract 160 from each side

102-160 = 160-160-x

-58 = -x

Multiply each side by -1

58 =x

6 0
2 years ago
Kenny went shopping with Ali and purchased an iPhone that was on sale for 10% off. If he paid $270, what was the original price?
12345 [234]

Answer:

$2700

Step-by-step explanation:

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