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Tomtit [17]
2 years ago
15

Factor the following quadratic. y=2x^2 - 5x - 3

Mathematics
1 answer:
Reptile [31]2 years ago
3 0

Answer:

(2x + 1)(x - 3)

Step-by-step explanation:

y = 2 {x}^{2}  - 5x - 3

2 {x}^{2}  - 5x - 3 = 0

(2x + 1)(x - 3)  = 0

x =  -  \frac{1}{2}

x = 3

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A classroom had 35 glue sticks.If the ratio of glue sticks to glue bottles was 5:2 how many glue bottles did the classroom have​
lyudmila [28]

Answer:

14

Step-by-step explanation:

35÷5=7

2×7=14

hope this helps

4 0
2 years ago
Read 2 more answers
What is not preserved under dilation? Select all that apply.
marusya05 [52]

Answer:

Hence, option D is correct (i.e. Distance is not preserved under dilation).

Step-by-step explanation:

<em>" A dilation is a transformation that produces an image that is the same shape as the original, but is a different size ".</em>

A)  Angle measure:

Angle measures remains same as there is only a difference in their size the shape does not changes.

Hence angle measure is preserved.

B) Betweenness:

It is also preserved. since if any point in before dilation is between two points than after dilation it remain between them only.

C) Collinearity:

Points remain on the same line.

Hence, it is preserved.

D) Distance:

The distance is not preserved. since the length of the segment increase or decrease in dilation hence distance between two point also increase or decrease.

E) Proportionality:

In a dilation, the sides of the pre-image and the corresponding sides of the image are proportional. Hence it is also preserved.



3 0
2 years ago
20 points!! Type the correct answer in the box. Use numerals instead of words. What value of n makes the equation true? -1/5n+7=
vredina [299]

Hey there! :)

Answer:

\huge\boxed{n = 25}

-1/5n + 7 = 2

Start by subtracting 7 from both sides:

-1/5n + 7 - (7) = 2 - (7)

-1/5n = -5

Multiply both sides by the reciprocal of -1/5, or -5.

(-5) · (-1/5n) = (-5) · (-5)

n = 25

6 0
3 years ago
What is 70/360 in percentage​
defon

Answer:

About 19.45%

Step-by-step explanation:

First set the fraction equal to x over 100 ———- (70/360)=(x/100)

cross multiply———- 70 * 100 = 7000            360 * x = 360x

solve for x —————- 7000=360x

                                   7000/360= 19.44444444

Round ——- x=19.45

OR

Divide fraction ———— 70/360 = 0.1944444444

Next, convert to percentage by moving decimal 2 places to the right ——

019.44444444

Round ————- = 19.45

3 0
3 years ago
PLZ HELP ME FIGURE THIS OUT
Romashka [77]

Answer:

f=2

Step-by-step explanation:

3=9-3f

3-9=-3f

-6=-3f

2=f

f=2

5 0
3 years ago
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