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baherus [9]
3 years ago
14

There are 40 questions on a test. Tina answered 85% of the questions correctly. How

Mathematics
1 answer:
Darina [25.2K]3 years ago
7 0

Answer:

34

Step-by-step explanation:

(40×85)/100

3400/100

34

is right answer

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In your own words, describe how to graph the linear equation y = -1/5x + 3. Step by step
Gemiola [76]

Answer:

Steps given below and graph is attached.

Step-by-step explanation:

First Step:

Find out y-intercept by substituting x=0

y=-\frac{1}{5}\times 0+3\\\\y=3\\\\Hence\ line\ passes\ through\ (0,3).

Second Step:

Find out x-intercept by substituting y=0.

0=-\frac{1}{5}x+3\\\\\frac{1}{5}x=3\\\\x=15\\\\Hence\ line\ passes\ through\ (15,0).

Third Step:

Draw a line passing through (0,3)\ and\ (15,0).

Graph is attached.

7 0
3 years ago
there are 33.8 fluid ounces in a filter or in a liter there are 128 fluid ounces in a gallon about how many liters are in a gall
cluponka [151]

Answer:

33.8 + 128 = 161.8

6 0
3 years ago
-2x^2 + 4x + 16 in vertex form​
Reil [10]

Answer:

y = - 2(x - 1)² + 18

Step-by-step explanation:

- 2x² + 4x + 16 ← factor out - 2 from the first 2 terms

= - 2(x² - 2x) + 16

using the method of completing the square

add/subtract ( half the coefficient of the x- term)² to x² - 2x

= - 2(x² + 2(- 1)x + 1 - 1) + 16

= - 2(x - 1)² + 2 + 16

= - 2(x - 1)² + 18 ← in vertex form

6 0
2 years ago
PLSS help
GrogVix [38]
Answer: D, 1/12

Explanation:
Since it says how much MORE, we subtract. SO
3/4 - 2/3= 1/12
5 0
2 years ago
Read 2 more answers
JKLM is a rhombus. KM is 6 and JL is 8. Find the perimeter of the rhombus. image of rhombus JKLM with diagonals JL and KM inters
VLD [36.1K]
If a quadrilateral is a rhombus then:

i) all its sides have equal length,

and

ii) the 2 diagonals are perpendicular and bisect each other.


The 2 diagonals of rhombus JKLM intersect at N.

Then m(MNJ)=90°,  |JN|=4 and |NM|=3 units

thus, by the Pythagorean theorem, 

|MJ|= \sqrt{ 3^{2} + 4^{2} }= \sqrt{9+16}= \sqrt{25}=5

The perimeter of the rhombus is 4*5 units=20 units.


Answer: 20 units 

4 0
3 years ago
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