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Gnoma [55]
3 years ago
8

Solve pls brainliest

Mathematics
1 answer:
Alexxx [7]3 years ago
8 0

Answer:

for the first one it 2

3

12

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If x + y = 10 and x-y=4, what is the value<br> of x2 - y22
slamgirl [31]

Answer:

-52

Step-by-step explanation:

Let’s find x and y

x=7 and y=3

so 7x2=14

3x22=66

14-66=-52

3 0
3 years ago
Write an equation of the line in point-slope form that passes through the given points.
RSB [31]

Answer:

Step-by-step explanation:

point - slope  formula:  y - y1 = m(x-x1)

we need to find the slope ... or what is m ?

m = rise / run  

m = y2 - y1  / x2 - x1    

where the given points are  (x1,y1)  and (x2,y2)

m= 7-5 / 6-5

m = 2 / 1

m =2

now use either point and plug the slope and the point into the point-slope formula

y-5 =2(x-5)     :)

5 0
3 years ago
In 3/4 pound of a spice mix, there is 5/6 cup of cinnamon. How much cinnamon does the spicemix contain per pound?
GuDViN [60]
Let's use ratio and proportion or rates to solve thisIf there is 5/6 cup of cinnamon in a 3/4  pound of spice mix, how many are in a pound?5/6=3/4    ?=11/ (3/4)*5/6=11/9Therefore there are 10/9 cups of cinnamon in 1.111... or 11/9  pounds of spice mix.

3 0
4 years ago
Hdhdbdudndhdbdudbs bdhdhdhdhdbd
garik1379 [7]

Answer:

Dang I forgot how to do that

7 0
3 years ago
Given that sin∅ = 1/4, 0 &lt; ∅ &lt; π/2, what is the exact value of cos∅?
Artemon [7]

Answer:

b

Step-by-step explanation:

Using the trigonometric identity

• sin²x + cos²x = 1 , hence

cosx = ± \sqrt{1-sin^2x}

cosΦ > 0 for 0 < Φ < \frac{\pi }{2}

cosΦ = \sqrt{1-(\frac{1}{4})^2 } = \sqrt{1-\frac{1}{16} } = \sqrt{\frac{15}{16} } = \frac{\sqrt{15} }{4} → b


3 0
3 years ago
Read 2 more answers
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