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kicyunya [14]
3 years ago
8

PLLLLLLEEEEAAAAAAASSSSSSEEEEEE HEEELLLLLPPPPPP

Mathematics
2 answers:
uysha [10]3 years ago
8 0
1.-5*2+10=0 : this is the answer

2. 1-5(7)=-34 =/= 4
1-10=-9 =/= 1
-4(7)+3=-25 =/= 1
-7+8=1 : this is the answer

3. the slope is \frac{-10-(-5)}{-9-(-2)}= \frac{5}{7}. Answer C
dimaraw [331]3 years ago
3 0
1. B
2. B. 
3.D.
hoped it hlped
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Beth Rides a Train every winter for 236 miles for 4 hours. If she rides 236 miles for 4 hours, how many miles does she travel fo
e-lub [12.9K]
59 miles here we use division
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4 years ago
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A person standing on a second floor balcony drops keys to a friend standing below the balcony. The keys are dropped from a heigh
Lostsunrise [7]

Answer:

sqrt(3/8) = t

.61237 = t

Step-by-step explanation:

h(t)=−16t^2+10

Let h(t) = 4

4 =−16t^2+10

Subtract 10 from each side

4-10 =−16t^2+10-10

-6 = -16 t^2

Divide by -16

-6/-16 = t^2

3/8 = t^2

Take the square root of each side

sqrt(3/8) = sqrt(t^2)

sqrt(3/8) = t

.61237 = t

We only take the positive since time is not negative

6 0
3 years ago
Calculate the final amount of a 20-year, long term savings plan if a payment of $2000 is made at the end of every year. Interest
Andrej [43]
Hi there
The formula of the future value of annuity ordinary is
Fv=pmt [(1+r)^(n)-1)÷r]
Fv future value?
PMT payment per year 2000
R interest rate 0.085
N time 20 years

Fv=2,000×(((1+0.085)^(20)−1)
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6 0
3 years ago
Find the value of x. Then classify the triangle
kondaur [170]

Answer:

x = 60°

Step-by-step explanation:

This is an equilateral triangle. All angles of this triangle are congruent and have a measure of 60°.

Other method.

We know: the sum of the measures of the angles of the triangle is equal to 180 °.

Therefore we have the equation:

x + x + x = 180°

3x = 180°           <em>divide both sides by 3</em>

x = 60°

7 0
4 years ago
Find the area of each shaded region each outer polygon is regular <br><br><br> See the picture
PSYCHO15rus [73]

Answer:

Area of the shaded region = 3.46 square units

Step-by-step explanation:

Measure of the interior angle of a regular polygon = \frac{(n - 2)\times180}{n}

From the picture attached,

Number of sides of the given polygon 'n' = 6

Interior angle (∠BAF) of the given polygon = \frac{(6 - 2)\times 180}{6}

                                                                       = 120°

Measure of ∠BAC = \frac{120}{4}

                              = 30°

Now we apply sine rule in ΔAGB,

sin(30°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

            = \frac{BG}{AB}

BG = AB[sin(30°)]

     = 2\times \frac{1}{2}

     = 1

By applying cosine rule in ΔABG,

cos(30°) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

              = \frac{AG}{AB}

AG = AB[cos(30°)]

     = 2\times \frac{\sqrt{3} }{2}

     = \sqrt{3}

AC = 2(AG)

     = 2√3

Area of ΔABC = \frac{1}{2}(\text{Base})(\text{Height})

                       = \frac{1}{2}(AC)(BG)

                       = \frac{1}{2}(2\sqrt{3} )(1)

                       = \sqrt{3}

Area of the shaded region = Area of ΔABC + Area of ΔFED

                                             = 2(Area of ΔABC)

                                             = 2√3

                                             = 3.46 square units

6 0
3 years ago
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