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3 years ago

You are driving at a constant speed of 75 mph. how far will you drive in 4 hrs

Mathematics

1 answer:

NISA [10]3 years ago

5 0

Answer:

300miles

Step-by-step explanation:

If you are driving 75 miles per hour, and you need to know how many miles you will have drive in 4 hours. Multiply 4 by 75 to get 300.

75mi 4 hr

____ x___ = 75mi x 4 = 300miles

1 hr y

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A student inscribes a triangle within a semicircle. What is the measure of ∠XYZ?

nata0808 [166]

Answer: a. 90°

Step-by-step explanation:

We know that the in a circle, the measure of an inscribed angle is half the measure of the central angle with the same intercepted arc.

In the problem∠XYZ is the inscribed angle

∠XYZ= $\frac{1}{2}\ arc(XZ)$

⇒ ∠XYZ= $\frac{1}{2}\angle{XZ}$

Since XZ is a diameter of the circle which is a line segment, thus ∠XZ=180°

∴ ∠XYZ= $\frac{1}{2}180^{\circ}=90^{\circ}$

∴ ∠XYZ= $90^{\circ}$

Therefore, a. 90° is the measure of ∠XYZ.

6 0

2 years ago

Read 2 more answers

Domain of the function of a graph with coordinates (-3,-2)

olga2289 [7]

Answer:

Domain is -3

Step-by-step explanation:

Given that coordinate of a graph is (-3, -2)

We have to find out the domain.

We know that if A and B are two sets, a mapping from A to B is the subset of cartesian product AxB.

Domain is the set of values of A which have images in B.

Use the above definition.

We have A = {-3,...} and B = {-2,....}

The mapping is from -3 to -2

Hence domain is -3

6 0

2 years ago

Tyler has 2 dogs and 7 fish. What is Tyler's ratio of fish to dogs?

sergij07 [2.7K]

Answer:

2:7

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Jim had some dimes, quarters, and nickels. First, he counted only the dimes and quarters and found that he had 9 coins. Then, he

Olegator [25]

Answer:

$1.90

Step-by-step explanation:

Represent the numbers of nickels, dimes and quarters by n, d and q.

Then: d + q = 9, or q = 9 - d.

Also, n + d = 10

Lastly, n + d + q = 15.

Let's substitute 9 - d for q in the equation immediately above:

n + d + (9 - d) = 15, or n + 9 = 15. Then n must be 6.

In summary, Jim has 6 nickels, (10 - 6) dimes and (9 - 4) quarters, or:

6 nickels, 4 dimes and 5 quarters

Thus, he has 5($0.05) + 4($0.10) + 5($0.25), or

$0.25 + $0.40 + $1.25, or $1.90

7 0

2 years ago

Without calculating . How do you know |4x-7| =-1 has no solution

viktelen [127]

Because the left side of the equation is an absolute value, making it impossible to = to -1.

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3 years ago