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gavmur [86]
3 years ago
12

A) Serena walks 4 km in 1 h. Explain!

Mathematics
1 answer:
Shkiper50 [21]3 years ago
6 0

Answer:

didn't I explain how to do it

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Mila used the multiplication property to justify the first step in solving an equation. The original equation was x/2+4=10. What
Nookie1986 [14]

Answer: x+8=20

Step-by-step explanation:

Given

Equation is \frac{x}{2}+4=10

Mila uses the first step as multiplication to make the coefficient of x, 1

Mila maybe have multiplied the whole equation by 2 i.e.

\Rightarrow 2\left(\dfrac{x}{2}+4=10\right)\\\\\Rightarrow x+8=20

8 0
3 years ago
From the top of a tower, an object which is 97 m away from the base of the tower, is at a 37° angle of depression.
mario62 [17]
<h3>Answer:  73</h3>

==================================================

Work Shown:

Check out the diagram below. Note the pair of alternate interior angles that are congruent (each 37 degrees). Then focus on triangle ABC. With the reference angle being at A, this means we use the tangent function because BC = x is the opposite side and AB = 97 is the adjacent side.

tan(angle) = opposite/adjacent

tan(A) = BC/AB

tan(37) = x/97

97*tan(37) = x

x = 97*tan(37)

x = 73.094742859971

For the last step, you'll need a calculator that can handle trig functions. Make sure the calculator is in degree mode. The result here is approximate. This rounds to 73 when rounding to the nearest whole number.

7 0
3 years ago
I NEED ANSWER ASAP! I HAVE A LOT OF POINTS, I WILL GIVE 50 POINTS AND BRAINLIEST TO FIRST ANSWERRRRRR!
Mekhanik [1.2K]

Answer:

A) A = 1; B = 0; C = 20

Step-by-step explanation:

The standard form for a quadratic is

Ax^2 +Bx +C=0

We are given

1/4x^2 + 5 = 0

Rewriting

1/4x^2 +0x+ 5 = 0

A = 1/4  B=0 C=5

We can multiply each side by 4

4(1/4x^2 +0x+ 5) = 0*4

x^2 +0x+ 20 = 0

A = 1  B=0 C=20

7 0
4 years ago
Read 2 more answers
Stacey filled her 1/2 cup measuring cup seven times to have enough flour for a cake recipe. How much flour does the cake recipe
adoni [48]

First you would do 1/2 * 7 and you would get your answer which would be 3 1/2 cups of flour.

xXRebekahXx Please rank brainliest if this was helpful!!

3 0
3 years ago
What is the slope of this line?
kumpel [21]

Answer:

1/2 maybe

Step-by-step explanation:

4 0
3 years ago
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