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Sonbull [250]
3 years ago
9

How can I use benchmarks to estimate 9/10+4/10

Mathematics
1 answer:
Jobisdone [24]3 years ago
4 0
I don’t kno how to estimate using benchmarks but I kno the exacts answer is 13/10 or 1.3
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Use the rule (x,y) (3x,2y) to find the image for the preimage defined by the given points.
Elina [12.6K]

Answer: The points of the images are  (9,10), (15,6), (6,4)  and the image is not a rigid motion because the shape changes in side.

Step-by-step explanation:

Since it gives you the scale factor then find they coordinates by multiplying the coordinates by the scare factor.

A(3,5) → (3*3,5*2) → (9,10)

B( 5,3) → (5*3, 3*2) → (15,6)

C ( 2,3)→ (2*3, 2*2)→ ( 6,4)

4 0
4 years ago
Multiply. Express your answer in standard form.(x^2-4x+3)(-3x^2+7x-1)
Yakvenalex [24]

Answer:

-3x^4 + 5x^3 - 33x^2 + 25x - 3

//Hope it helps and it's right.

7 0
3 years ago
How many terms are in the following expression?<br> 2x+4y+8-2
sashaice [31]

Answer:

3

Step-by-step explanation:

In this expression, the first term is <em>2x</em>, then <em>4y, </em>then 8-2 (which simplifies to 6).

3 0
3 years ago
Read 2 more answers
Find the area of the striped sector if ∠ A = 45° and the circle has a radius of 10 inches.
Pie
A diagram must be provided along with the question above. Based on my research, here is what I got.

<span>100 pi is the area of the entire circle
 That makes :
</span><span>∠ A = 45°/360 = 1/8
</span> 100pi/8 = 25 pi / 2
 
The answer is option D)25π over 2. I hope this answer helps.
4 0
3 years ago
Read 2 more answers
Alex buys 2 1/2 pounds of grapes. He buys 1 1/4 times as many pounds of apples as grapes. How many pounds of apples does he buy?
galina1969 [7]
Given:
grapes = 2 1/2 pounds
apples = 1 1/4 times as many pounds as grapes.

For easier computation, let us convert these fractions into numbers with decimal places.

2 1/2 pounds = 2.50 pounds
1 1/4 times = 1.25

Apples = 2.50 pounds * 1.25 = 3.125 pounds of apples.

Or we still use fractions. We need to convert the mixed fractions into improper fractions.

2 1/2 = 5/2
1 1/4 = 5/4

5/2 * 5/4 = 5*5 / 2*4 = 25/8 is simplified to 3 1/8 pounds
3 0
3 years ago
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